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9dab21716f
firebird-mirror/src/gpre/cob.cpp
robocop 903293c9d1 Seems more readable to me.
2009-08-19 12:59:22 +00:00

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//____________________________________________________________
//
// PROGRAM: General preprocessor
// MODULE: cob.cpp
// DESCRIPTION: COBOL text generator
//
// The contents of this file are subject to the Interbase Public
// License Version 1.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy
// of the License at http://www.Inprise.com/IPL.html
//
// Software distributed under the License is distributed on an
// "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
// or implied. See the License for the specific language governing
// rights and limitations under the License.
//
// The Original Code was created by Inprise Corporation
// and its predecessors. Portions created by Inprise Corporation are
// Copyright (C) Inprise Corporation.
//
// All Rights Reserved.
// Contributor(s): ______________________________________.
// Solaris x86 changes - Konstantin Kuznetsov, Neil McCalden
// 8-Mar-2002 FSG (Frank Schlottmann-Gödde) tiny cobol support
// fixed Bug No. 526204*
//
//
//____________________________________________________________
//
//
// 2002.10.27 Sean Leyne - Completed removal of obsolete "DG_X86" port
// 2002.10.27 Sean Leyne - Code Cleanup, removed obsolete "UNIXWARE" port
//
// 2002.10.28 Sean Leyne - Completed removal of obsolete "DGUX" port
// 2002.10.28 Sean Leyne - Completed removal of obsolete "HP700" port
//
// Modified to allow support for RM/Cobol. Actual RM/Cobol code generation
// in rmc.cpp.
// Stephen W. Boyd 31.Aug.2006
//
#include "firebird.h"
#include <stdio.h>
#include "../jrd/common.h"
#include <stdarg.h>
#include "../jrd/ibase.h"
#include "../jrd/gds_proto.h"
#include "../gpre/gpre.h"
#include "../gpre/pat.h"
#include "../gpre/cmp_proto.h"
#include "../gpre/lang_proto.h"
#include "../gpre/pat_proto.h"
#include "../gpre/prett_proto.h"
#include "../gpre/gpre_proto.h"
#include "../common/utils_proto.h"
#ifdef HAVE_STRING_H
#include <string.h>
#endif
static const char* const COMMIT = "commit";
static const char* const ROLLBACK = "rollback";
#if defined AIX || defined AIX_PPC || defined SOLARIS || defined HP11 || defined LINUX || defined DARWIN || defined FREEBSD || defined NETBSD || defined WIN_NT
static const char* const OMITTED = "BY VALUE 0";
static const char* const BY_VALUE = "BY VALUE ";
static const char* const END_VALUE = "";
static const char* const BY_REF = "BY REFERENCE ";
static const char* const BY_DESC = "BY REFERENCE ";
static const char* const RAW_BLR_TEMPLATE = "03 %s%d%s%d PIC XXXX USAGE COMP-X VALUE IS %"ULONGFORMAT".";
static const char* const RAW_TPB_TEMPLATE = "03 %s%d%s%d PIC XXXX USAGE COMP-X VALUE IS %"ULONGFORMAT".";
static const char* const COMP_VALUE = "COMP-5";
#else
static const char* const COMP_VALUE = "COMP";
#endif // MICROFOCUS
static const char* const STRING_LENGTH = "\"isc_embed_dsql_length\"";
static const char* const ISC_BLOB = "isc_%s_blob";
static const char* const CLOSE = "close";
static const char* const CANCEL = "cancel";
static const char* const ISC_CANCEL_BLOB = "isc_cancel_blob";
static const char* const ISC_COMPILE_REQUEST = "isc_compile_request";
static const char* const ISC_CREATE_DATABASE = "isc_create_database";
static const char* const ISC_DDL = "isc_ddl";
static const char* const ISC_COMMIT_TRANSACTION = "isc_commit_transaction";
static const char* const ISC_ROLLBACK_TRANSACTION = "isc_rollback_transaction";
static const char* const ISC_DROP_DATABASE = "isc_drop_database";
static const char* const ISC_CLOSE = "isc_embed_dsql_close";
static const char* const ISC_DECLARE = "isc_embed_dsql_declare";
static const char* const ISC_DESCRIBE = "isc_embed_dsql_describe";
static const char* const ISC_DESCRIBE_BIND = "isc_embed_dsql_describe_bind";
static const char* const ISC_EXECUTE = "isc_embed_dsql_execute";
static const char* const ISC_EXECUTE2 = "isc_embed_dsql_execute2";
static const char* const ISC_EXECUTE_IMMEDIATE = "isc_embed_dsql_execute_immed";
static const char* const ISC_EXECUTE_IMMEDIATE2 = "isc_embed_dsql_execute_immed2";
static const char* const ISC_INSERT = "isc_embed_dsql_insert";
static const char* const ISC_OPEN = "isc_embed_dsql_open";
static const char* const ISC_OPEN2 = "isc_embed_dsql_open2";
static const char* const ISC_PREPARE = "isc_embed_dsql_prepare";
static const char* const ISC_DSQL_ALLOCATE = "isc_dsql_alloc_statement2";
static const char* const ISC_DSQL_EXECUTE = "isc_dsql_execute_m";
static const char* const ISC_DSQL_FREE = "isc_dsql_free_statement";
static const char* const ISC_DSQL_SET_CURSOR = "isc_dsql_set_cursor_name";
static const char* const ISC_COMMIT_ROLLBACK_TRANSACTION = "isc_%s_transaction";
static const char* const ISC_DETACH_DATABASE = "isc_detach_database";
static const char* const ISC_GET_SLICE = "isc_get_slice";
static const char* const ISC_PUT_SLICE = "isc_put_slice";
static const char* const ISC_GET_SEGMENT = "isc_get_segment";
static const char* const ISC_PUT_SEGMENT = "isc_put_segment";
static const char* const ISC_RECEIVE = "isc_receive";
static const char* const ISC_RELEASE_REQUEST = "isc_release_request";
static const char* const ISC_UNWIND_REQUEST = "isc_unwind_request";
static const char* const ISC_SEND = "isc_send";
static const char* const ISC_START_TRANSACTION = "isc_start_transaction";
static const char* const ISC_START_AND_SEND = "isc_start_and_send";
static const char* const ISC_START_REQUEST = "isc_start_request";
static const char* const ISC_TRANSACT_REQUEST = "isc_transact_request";
static const char* const ISC_COMMIT_RETAINING = "isc_commit_retaining";
static const char* const ISC_ROLLBACK_RETAINING = "isc_rollback_retaining";
static const char* const ISC_ATTACH_DATABASE_D = "isc_attach_database";
static const char* const ISC_ATTACH_DATABASE = "isc_attach_database";
static const char* const ISC_MODIFY_DPB = "isc_modify_dpb";
static const char* const ISC_FREE = "isc_free";
#ifdef GIVING_SUPPORTED
static const char* const ISC_SQLCODE_CALL = "isc_sqlcode";
static const char* const ISC_FETCH = "isc_embed_dsql_fetch";
static const char* const ISC_EVENT_BLOCK = "isc_event_block_a";
#else
static const char* const ISC_SQLCODE_CALL = "isc_sqlcode_s";
static const char* const ISC_FETCH = "isc_embed_dsql_fetch_a";
static const char* const ISC_EVENT_BLOCK = "isc_event_block_s";
#endif
static const char* const ISC_PREPARE_TRANSACTION = "isc_prepare_transaction";
static const char* const ISC_EVENT_WAIT = "isc_wait_for_event";
static const char* const ISC_EVENT_COUNTS = "isc_event_counts";
#ifdef GIVING_SUPPORTED
static const char* const ISC_BADDRESS = "isc_baddress";
#else
static const char* const ISC_BADDRESS = "isc_baddress_s";
#endif
#ifdef GIVING_SUPPORTED
static const char* const FETCH_CALL_TEMPLATE = "CALL \"%s\" USING %s, %s%s, %s%d%s, %s%s GIVING SQLCODE";
static const char* const GET_LEN_CALL_TEMPLATE = "CALL %s USING %s GIVING %s";
static const char* const EVENT_MOVE_TEMPLATE = "CALL \"%s\" USING %s(%d) GIVING %s(%d)";
static const char* const GET_SEG_CALL_TEMPLATE = "%sCALL \"%s\" USING %s, %s%d, %s%d, %s%d%s, %s%s%d GIVING %s (2)\n";
static const char* const PUT_SEG_CALL_TEMPLATE = "%sCALL \"%s\" USING %s, %s%s%d, %s%s%d%s, %s%s%d GIVING %s (2)\n"
static const char* const SQLCODE_CALL_TEMPLATE = "CALL \"%s\" USING %s GIVING SQLCODE";
#else
static const char* const FETCH_CALL_TEMPLATE = "CALL \"%s\" USING %s, BY REFERENCE SQLCODE, %s%s, %s%d%s, %s%s";
static const char* const GET_LEN_CALL_TEMPLATE = "CALL %s USING %s, %s";
static const char* const EVENT_MOVE_TEMPLATE = "CALL \"%s\" USING %s(%d), %s(%d)";
static const char* const GET_SEG_CALL_TEMPLATE = "%sCALL \"%s\" USING %s, %s%d, %s%d, %s%d%s, %s%s%d\n";
static const char* const PUT_SEG_CALL_TEMPLATE = "%sCALL \"%s\" USING %s, %s%s%d, %s%s%d%s, %s%s%d\n";
static const char* const SQLCODE_CALL_TEMPLATE = "CALL \"%s\" USING %s, BY REFERENCE SQLCODE";
#endif // GIVING_SUPPORTED
#if defined AIX || defined AIX_PPC || defined SOLARIS || defined HP11
static const char* const USAGE_COMP = " USAGE IS COMP";
#else
static const char* const USAGE_COMP = " USAGE IS COMP";
#endif
#ifndef FLOATS_COMPS_DECLARED
static const char* const DCL_FLOAT = "USAGE IS COMP-1";
static const char* const DCL_DOUBLE = "USAGE IS COMP-2";
#endif
#ifdef NOT_USED_OR_REPLACED
static void align(int column);
#endif
static void asgn_from (const act*, const ref*);
static void asgn_to (const act*, ref*);
static void asgn_to_proc (const ref*);
static void gen_any (const act*);
static void gen_at_end (const act*);
static void gen_based (const act*);
static void gen_blob_close (const act*);
static void gen_blob_end (const act*);
static void gen_blob_for (const act*);
static void gen_blob_open (const act*);
static void gen_blr (void*, SSHORT, const char*);
static void gen_clear_handles(); // (const act*);
static void gen_compile (const act*);
static void gen_create_database (const act*);
static void gen_cursor_close (const act*, const gpre_req*);
static void gen_cursor_init (const act*);
static void gen_cursor_open (const act*, const gpre_req*);
static void gen_database (const act*);
static void gen_ddl (const act*);
static void gen_dyn_close (const act*);
static void gen_dyn_declare (const act*);
static void gen_dyn_describe(const act*, bool);
static void gen_dyn_execute (const act*);
static void gen_dyn_fetch (const act*);
static void gen_dyn_immediate (const act*);
static void gen_dyn_insert (const act*);
static void gen_dyn_open (const act*);
static void gen_dyn_prepare (const act*);
static void gen_emodify (const act*);
static void gen_estore (const act*);
static void gen_end_fetch();
static void gen_endfor (const act*);
static void gen_erase (const act*);
static SSHORT gen_event_block (const act*);
static void gen_event_init (const act*);
static void gen_event_wait (const act*);
static void gen_fetch (const act*);
static void gen_finish (const act*);
static void gen_for (const act*);
static void gen_function (const act*);
static void gen_get_or_put_slice(const act*, const ref*, bool);
static void gen_get_segment (const act*);
static void gen_loop (const act*);
static TEXT* gen_name(TEXT* const, const ref*, bool);
static void gen_on_error(); // (const act*);
static void gen_procedure (const act*);
static void gen_put_segment (const act*);
static void gen_raw (const UCHAR*, req_t, int, int);
static void gen_ready (const act*);
static void gen_receive (const act*, const gpre_port*);
static void gen_release (const act*);
static void gen_request (gpre_req*);
static void gen_s_end (const act*);
static void gen_s_fetch (const act*);
static void gen_s_start (const act*);
static void gen_segment (const act*);
static void gen_select (const act*);
static void gen_send (const act*, const gpre_port*);
static void gen_slice (const act*);
static void gen_start (const act*, const gpre_port*);
static void gen_store (const act*);
static void gen_t_start (const act*);
static void gen_tpb (const tpb*);
static void gen_trans (const act*);
static void gen_type (const act*);
static void gen_update (const act*);
static void gen_variable (const act*);
static void gen_whenever (const swe*);
static void make_array_declaration (ref*);
static void make_name (TEXT* const, const gpre_sym*);
static void make_name_formatted (TEXT* const, const TEXT*, const gpre_sym*);
static void make_port (const gpre_port*);
static void make_ready (const gpre_dbb*, const TEXT*, const TEXT*, const gpre_req*,
USHORT);
static void printa(const TEXT*, bool, const TEXT*, ...) ATTRIBUTE_FORMAT(3,4);
#ifdef NOT_USED_OR_REPLACED
static void printb (const TEXT*, ... ) ATTRIBUTE_FORMAT(1,2);
#endif
static const TEXT* request_trans (const act*, const gpre_req*);
static void set_sqlcode (const act*);
static const TEXT* status_vector (const act*);
static void t_start_auto (const gpre_req*, const TEXT*, const act*, bool);
static TEXT output_buffer[512];
static bool global_first_flag = false;
static const TEXT** names;
static const TEXT* vnames[] =
{
"_",
"ISC_",
"isc_",
"isc_blob_null",
"ISC_TPB_",
"ISC_TRANS",
"ISC_STATUS_VECTOR",
"ISC_STATUS",
"ISC_STATUS_VECTOR2",
"ISC_STATUS2",
"ISC_WINDOW",
"ISC_WIDTH",
"ISC_HEIGHT",
"RDB_K_DB_TYPE_GDS",
"ISC_ARRAY_LENGTH",
" ", // column
"* ", // comment
"- ", // continue
"- \"", // continue quote
"- \'", // continue single quote
"", // column0
" ", // column indent
"ISC_SQLCODE",
"ISC_EVENTS_VECTOR",
"ISC_EVENTS",
"ISC_EVENT_NAMES_VECTOR",
"ISC_EVENT_NAMES",
"ISC_EVENT_NAMES_VECTOR2",
"ISC_EVENT_NAMES2",
NULL
};
static const TEXT* anames[] =
{
"-",
"ISC-",
"isc-",
"isc-blob-null",
"ISC-TPB-",
"ISC-TRANS",
"ISC-STATUS-VECTOR",
"ISC-STATUS",
"ISC-STATUS-VECTOR2",
"ISC-STATUS2",
"ISC-WINDOW",
"ISC-WIDTH",
"ISC-HEIGHT",
"RDB-K-DB-TYPE-GDS",
"ISC-ARRAY-LENGTH",
" ", // column
" * ", // comment
" ", // continue
" - \"", // continue quote
" - \'", // continue single quote
" ", // column0
" ", // column indent
"ISC-SQL-CODE",
"ISC-EVENTS-VECTOR",
"ISC-EVENTS",
"ISC-EVENT-NAMES-VECTOR",
"ISC-EVENT-NAMES",
"ISC-EVENT-NAMES-VECTOR2",
"ISC-EVENT-NAMES2",
NULL
};
enum {
UNDER,
isc_a_pos,
isc_b_pos,
isc_blob_null_pos,
isc_tpb_pos,
isc_trans_pos,
isc_status_vector_pos,
isc_status_pos,
isc_status_vector2_pos,
ISC_STATUS2,
ISC_WINDOW,
ISC_WIDTH,
ISC_HEIGHT,
RDB_K_DB_TYPE_GDS,
ISC_ARRAY_LENGTH,
COLUMN,
COMMENT,
CONTINUE,
CONTINUE_QUOTE,
CONTINUE_SINGLE_QUOTE,
COLUMN_0,
COLUMN_INDENT,
ISC_SQLCODE,
ISC_EVENTS_VECTOR,
ISC_EVENTS,
ISC_EVENT_NAMES_VECTOR,
ISC_EVENT_NAMES,
ISC_EVENT_NAMES_VECTOR2,
ISC_EVENT_NAMES2
};
static const char* const INDENT = " ";
//____________________________________________________________
//
//
void COB_action(const act* action, int /*column*/)
{
if (action->act_flags & ACT_break)
global_first_flag = false;
switch (action->act_type)
{
case ACT_alter_database:
case ACT_alter_domain:
case ACT_alter_table:
case ACT_alter_index:
case ACT_create_domain:
case ACT_create_generator:
case ACT_create_index:
case ACT_create_shadow:
case ACT_create_table:
case ACT_create_view:
case ACT_declare_filter:
case ACT_declare_udf:
case ACT_statistics:
case ACT_drop_domain:
case ACT_drop_filter:
case ACT_drop_index:
case ACT_drop_shadow:
case ACT_drop_table:
case ACT_drop_udf:
case ACT_drop_view:
gen_ddl(action);
break;
case ACT_any:
gen_any(action);
return;
case ACT_at_end:
gen_at_end(action);
return;
case ACT_commit:
gen_trans(action);
break;
case ACT_commit_retain_context:
gen_trans(action);
break;
case ACT_basedon:
gen_based(action);
return;
case ACT_b_declare:
gen_database(action);
return;
case ACT_blob_cancel:
gen_blob_close(action);
return;
case ACT_blob_close:
gen_blob_close(action);
break;
case ACT_blob_create:
gen_blob_open(action);
break;
case ACT_blob_for:
gen_blob_for(action);
return;
case ACT_blob_handle:
gen_segment(action);
return;
case ACT_blob_open:
gen_blob_open(action);
break;
case ACT_clear_handles:
gen_clear_handles(); //(action);
break;
case ACT_close:
gen_s_end(action);
break;
case ACT_create_database:
gen_create_database(action);
break;
case ACT_cursor:
gen_cursor_init(action);
return;
case ACT_database:
gen_database(action);
return;
case ACT_disconnect:
gen_finish(action);
break;
case ACT_dyn_close:
gen_dyn_close(action);
break;
case ACT_dyn_cursor:
gen_dyn_declare(action);
break;
case ACT_dyn_describe:
gen_dyn_describe(action, false);
break;
case ACT_dyn_describe_input:
gen_dyn_describe(action, true);
break;
case ACT_dyn_execute:
gen_dyn_execute(action);
break;
case ACT_dyn_fetch:
gen_dyn_fetch(action);
break;
case ACT_dyn_grant:
gen_ddl(action);
break;
case ACT_dyn_immediate:
gen_dyn_immediate(action);
break;
case ACT_dyn_insert:
gen_dyn_insert(action);
break;
case ACT_dyn_open:
gen_dyn_open(action);
break;
case ACT_dyn_prepare:
gen_dyn_prepare(action);
break;
case ACT_dyn_revoke:
gen_ddl(action);
break;
case ACT_endblob:
gen_blob_end(action);
return;
case ACT_enderror:
sprintf(output_buffer, "%sEND-IF", names[COLUMN]);
COB_print_buffer(output_buffer, false);
return;
case ACT_endfor:
gen_endfor(action);
break;
case ACT_endmodify:
gen_emodify(action);
break;
case ACT_endstore:
gen_estore(action);
break;
case ACT_erase:
gen_erase(action);
return;
case ACT_event_init:
gen_event_init(action);
return;
case ACT_event_wait:
gen_event_wait(action);
return;
case ACT_fetch:
gen_fetch(action);
break;
case ACT_finish:
gen_finish(action);
break;
case ACT_for:
gen_for(action);
return;
case ACT_function:
gen_function(action);
return;
case ACT_get_segment:
gen_get_segment(action);
break;
case ACT_get_slice:
gen_slice(action);
return;
case ACT_hctef:
gen_end_fetch();
return;
case ACT_insert:
gen_s_start(action);
break;
case ACT_loop:
gen_loop(action);
break;
case ACT_open:
gen_s_start(action);
break;
case ACT_on_error:
gen_on_error(); //(action);
return;
case ACT_prepare:
gen_trans(action);
break;
case ACT_procedure:
gen_procedure(action);
break;
case ACT_put_segment:
gen_put_segment(action);
break;
case ACT_put_slice:
gen_slice(action);
return;
case ACT_ready:
gen_ready(action);
return;
case ACT_release:
gen_release(action);
break;
case ACT_rfinish:
gen_finish(action);
return;
case ACT_rollback:
gen_trans(action);
break;
case ACT_rollback_retain_context:
gen_trans(action);
break;
case ACT_routine:
return;
case ACT_s_end:
gen_s_end(action);
return;
case ACT_s_fetch:
gen_s_fetch(action);
break;
case ACT_s_start:
gen_s_start(action);
break;
case ACT_select:
gen_select(action);
break;
case ACT_segment_length:
gen_segment(action);
return;
case ACT_segment:
gen_segment(action);
return;
case ACT_sql_dialect:
gpreGlob.sw_sql_dialect = ((set_dialect*) action->act_object)->sdt_dialect;
return;
case ACT_start:
gen_t_start(action);
break;
case ACT_store:
gen_store(action);
break;
case ACT_type_number:
gen_type(action);
return;
case ACT_update:
gen_update(action);
break;
case ACT_variable:
gen_variable(action);
return;
default:
return;
}
if ((action->act_flags & ACT_sql) && action->act_whenever)
gen_whenever(action->act_whenever);
else
fprintf(gpreGlob.out_file, names[COLUMN]);
}
//____________________________________________________________
//
// point 'names' at the appropriate list
// ANSI has no underscores.
//
void COB_name_init(bool ansi)
{
names = ansi ? anames : vnames;
}
//____________________________________________________________
//
// Print a statment, breaking it into
// reasonable 80 character hunks. This
// function now works for COBOL statements
// which are function calls and non-function
// calls.
//
void COB_print_buffer(TEXT* output_bufferL,
bool function_call)
{
TEXT s[80];
bool open_quote = false;
bool single_quote = false;
bool save_open_quote;
bool save_single_quote;
USHORT max_line;
if (isAnsiCobol(gpreGlob.sw_cob_dialect))
max_line = 72;
else
max_line = 79;
TEXT* p = s;
for (const TEXT* q = output_bufferL; *q; q++)
{
*p++ = *q;
// If we have a single or double quote, toggle the
// quote switch and indicate single or double quote
if (*q == '\"')
{
open_quote = !open_quote;
single_quote = false;
}
else if (*q == '\'')
{
open_quote = !open_quote;
single_quote = true;
}
if ((p - s) > max_line)
{
const TEXT* tempq = q;
save_open_quote = open_quote;
save_single_quote = single_quote;
if (function_call)
{
// Back up until we reach a comma
for (p--; (p > s); p--, q--)
{
if (p[1] == '\"' || p[1] == '\'')
{
// If we have a single or double quote, toggle the
// quote switch and indicate single or double quote
open_quote = !open_quote;
if (open_quote)
single_quote = (p[1] == '\'');
else
single_quote = false;
}
if (!open_quote && *p == ',')
break;
}
// if p == s, this is a call with no commas. back up to a blank
if (p == s)
{
q = tempq;
p = s + max_line;
open_quote = save_open_quote;
single_quote = save_single_quote;
for (p--; p > s; p--, q--)
{
if (p[1] == '\"' || p[1] == '\'')
{
// If we have a single or double quote, toggle the
// quote switch and indicate single or double quote
open_quote = !open_quote;
if (open_quote)
single_quote = (p[1] == '\'');
else
single_quote = false;
}
if (!open_quote && *p == ' ')
break;
}
q--;
if (p == s)
{
q = tempq - 1;
p = s + max_line;
open_quote = save_open_quote;
single_quote = save_single_quote;
}
*p = 0;
}
else
*++p = 0;
}
else
{
// back up to a blank
for (p--; p > s; p--, q--)
{
if (p[1] == '\"' || p[1] == '\'')
{
// If we have a single or double quote, toggle the
// quote switch and indicate single or double quote
open_quote = !open_quote;
if (open_quote)
single_quote = (p[1] == '\'');
else
single_quote = false;
}
if (!open_quote && *p == ' ')
break;
}
q--;
if (p == s)
{
q = tempq - 1;
p = s + max_line;
open_quote = save_open_quote;
single_quote = save_single_quote;
}
*p = 0;
}
fprintf(gpreGlob.out_file, "%s\n", s);
if (open_quote)
{
if (single_quote)
strcpy(s, names[CONTINUE_SINGLE_QUOTE]);
else
strcpy(s, names[CONTINUE_QUOTE]);
}
else
strcpy(s, names[CONTINUE]);
for (p = s; *p; p++)
;
}
}
*p = 0;
fprintf(gpreGlob.out_file, "%s", s);
output_bufferL[0] = 0;
}
#ifdef NOT_USED_OR_REPLACED
//____________________________________________________________
//
// Align output to a specific column for output. If the
// column is negative, don't do anything.
//
static void align( int column)
{
if (column < 0)
return;
putc('\n', gpreGlob.out_file);
for (int i = column / 8; i; --i)
putc('\t', gpreGlob.out_file);
for (int i = column % 8; i; --i)
putc(' ', gpreGlob.out_file);
}
#endif
//____________________________________________________________
//
// Build an assignment from a host language variable to
// a port variable.
//
static void asgn_from( const act* action, const ref* reference)
{
TEXT name[MAX_REF_SIZE], variable[MAX_REF_SIZE], temp[MAX_REF_SIZE];
for (; reference; reference = reference->ref_next)
{
const gpre_fld* field = reference->ref_field;
if (field->fld_array_info)
if (!(reference->ref_flags & REF_array_elem))
{
printa(names[COLUMN], true, "CALL \"isc_qtoq\" USING %s, %s",
names[isc_blob_null_pos], gen_name(name, reference, true));
gen_get_or_put_slice(action, reference, false);
continue;
}
if (!reference->ref_source && !reference->ref_value)
continue;
gen_name(variable, reference, true);
const char* value;
if (reference->ref_source)
value = gen_name(temp, reference->ref_source, true);
else
value = reference->ref_value;
if (!reference->ref_master || (reference->ref_flags & REF_literal))
sprintf(output_buffer, "%sMOVE %s TO %s\n", names[COLUMN], value, variable);
else
{
sprintf(output_buffer, "%sIF %s < 0 THEN\n", names[COLUMN], value);
COB_print_buffer(output_buffer, false);
sprintf(output_buffer, "%sMOVE -1 TO %s\n", names[COLUMN_INDENT], variable);
COB_print_buffer(output_buffer, false);
sprintf(output_buffer, "%sELSE\n", names[COLUMN]);
COB_print_buffer(output_buffer, false);
sprintf(output_buffer, "%sMOVE 0 TO %s\n", names[COLUMN_INDENT], variable);
COB_print_buffer(output_buffer, false);
sprintf(output_buffer, "%sEND-IF\n", names[COLUMN]);
}
COB_print_buffer(output_buffer, false);
}
}
//____________________________________________________________
//
// Build an assignment to a host language variable from
// a port variable.
//
static void asgn_to( const act* action, ref* reference)
{
TEXT s[MAX_REF_SIZE];
ref* source = reference->ref_friend;
const gpre_fld* field = source->ref_field;
gen_name(s, source, true);
if (field->fld_array_info)
{
source->ref_value = reference->ref_value;
gen_get_or_put_slice(action, source, true);
return;
}
field = reference->ref_field;
sprintf(output_buffer, "%sMOVE %s TO %s\n", names[COLUMN], s, reference->ref_value);
COB_print_buffer(output_buffer, false);
// Pick up NULL value if one is there
if (reference = reference->ref_null)
{
sprintf(output_buffer, "%sMOVE %s TO %s\n", names[COLUMN], gen_name(s, reference, true),
reference->ref_value);
COB_print_buffer(output_buffer, false);
}
}
//____________________________________________________________
//
// Build an assignment to a host language variable from
// a port variable.
//
static void asgn_to_proc( const ref* reference)
{
TEXT s[MAX_REF_SIZE];
for (; reference; reference = reference->ref_next)
{
if (!reference->ref_value)
continue;
//gpre_fld* field = reference->ref_field;
gen_name(s, reference, true);
sprintf(output_buffer, "%sMOVE %s TO %s\n", names[COLUMN], s, reference->ref_value);
COB_print_buffer(output_buffer, false);
}
}
//____________________________________________________________
//
// Generate a function call for free standing ANY. Somebody else
// will need to generate the actual function.
//
static void gen_any( const act* action)
{
const gpre_req* request = action->act_request;
fprintf(gpreGlob.out_file, "%s_r (&%s, &%s",
request->req_handle, request->req_handle, request->req_trans);
const gpre_port* port = request->req_vport;
if (port)
for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
{
fprintf(gpreGlob.out_file, ", %s", reference->ref_value);
}
fprintf(gpreGlob.out_file, ")");
}
//____________________________________________________________
//
// Generate code for AT END clause of FETCH.
//
static void gen_at_end( const act* action)
{
TEXT s[MAX_REF_SIZE];
const gpre_req* request = action->act_request;
printa(names[COLUMN], false, "IF %s = 0 THEN", gen_name(s, request->req_eof, true));
fprintf(gpreGlob.out_file, names[COLUMN]);
}
//____________________________________________________________
//
// Substitute for a BASED ON <field name> clause.
//
static void gen_based( const act* action)
{
USHORT datatype;
const bas* based_on = (bas*) action->act_object;
const gpre_fld* field = based_on->bas_field;
if (based_on->bas_flags & BAS_segment)
{
datatype = dtype_text;
SLONG length = field->fld_seg_length;
if (!length)
length = 256;
}
else if (field->fld_array_info)
{
CPR_error("Based on currently not implemented for arrays.");
return; // silence non initialized warning
//
// TBD - messy
//datatype = field->fld_array_info->ary_dtype;
//for (dimension = field->fld_array_info->ary_dimension; dimension;
// dimension = dimension->dim_next)
//{
//fprintf (gpreGlob.out_file, "<not implemented>");
//
}
else
datatype = field->fld_dtype;
SSHORT digits;
switch (datatype)
{
case dtype_short:
case dtype_long:
digits = (datatype == dtype_short) ? 4 : 9;
fprintf(gpreGlob.out_file, "%sPIC S", names[COLUMN]);
if (field->fld_scale >= -digits && field->fld_scale <= 0)
{
if (field->fld_scale > -digits)
fprintf(gpreGlob.out_file, "9(%d)", digits + field->fld_scale);
if (field->fld_scale)
fprintf(gpreGlob.out_file, "V9(%d)", digits - (digits + field->fld_scale));
fprintf(gpreGlob.out_file, USAGE_COMP);
}
else if (field->fld_scale > 0)
fprintf(gpreGlob.out_file, "9(%d)P(%d)", digits, field->fld_scale);
else
fprintf(gpreGlob.out_file, "VP(%d)9(%d)", -(field->fld_scale + digits), digits);
break;
case dtype_date:
case dtype_blob:
fprintf(gpreGlob.out_file, "%sPIC S9(18)%s", names[COLUMN], USAGE_COMP);
break;
case dtype_quad:
fprintf(gpreGlob.out_file, "%sPIC S9(", names[COLUMN]);
fprintf(gpreGlob.out_file, "%d)", 18 + field->fld_scale);
if (field->fld_scale < 0)
fprintf(gpreGlob.out_file, "V9(%d)", -field->fld_scale);
else if (field->fld_scale > 0)
fprintf(gpreGlob.out_file, "P(%d)", field->fld_scale);
fprintf(gpreGlob.out_file, USAGE_COMP);
break;
case dtype_text:
fprintf(gpreGlob.out_file, "%sPIC X(%d)", names[COLUMN], field->fld_length);
break;
case dtype_real:
fprintf(gpreGlob.out_file, "%s%s", names[COLUMN], DCL_FLOAT);
break;
case dtype_double:
fprintf(gpreGlob.out_file, "%s%s", names[COLUMN], DCL_DOUBLE);
break;
default:
{
TEXT s[64];
sprintf(s, "datatype %d unknown\n", field->fld_dtype);
CPR_error(s);
return;
}
}
if (*based_on->bas_terminator == '.')
fprintf(gpreGlob.out_file, "%s\n", based_on->bas_terminator);
}
//____________________________________________________________
//
// Make a blob FOR loop.
//
static void gen_blob_close( const act* action)
{
const blb* blob;
if (action->act_flags & ACT_sql)
{
gen_cursor_close(action, action->act_request);
blob = (blb*) action->act_request->req_blobs;
}
else
blob = (blb*) action->act_object;
const TEXT* command = (action->act_type == ACT_blob_cancel) ? CANCEL : CLOSE;
TEXT buffer[80];
sprintf(buffer, ISC_BLOB, command);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s%d", buffer,
status_vector(action), BY_REF, names[isc_a_pos], blob->blb_ident);
set_sqlcode(action);
}
//____________________________________________________________
//
// End a blob FOR loop.
//
static void gen_blob_end( const act* action)
{
const blb* blob = (blb*) action->act_object;
gen_get_segment(action);
printa(names[COLUMN], false, "END-PERFORM");
if (action->act_error)
printa(names[COLUMN], true, "%sCALL \"%s\" USING %s%s, %s%s%d",
INDENT, ISC_CANCEL_BLOB,
BY_REF, names[isc_status_vector2_pos],
BY_REF, names[isc_a_pos], blob->blb_ident);
else
printa(names[COLUMN], true, "%sCALL \"%s\" USING %s, %s%s%d",
INDENT, ISC_CANCEL_BLOB,
status_vector(0), BY_REF, names[isc_a_pos], blob->blb_ident);
}
//____________________________________________________________
//
// Make a blob FOR loop.
//
static void gen_blob_for( const act* action)
{
gen_blob_open(action);
gen_get_segment(action);
printa(names[COLUMN], false, "PERFORM UNTIL");
printa(names[COLUMN], false, "%s%s(2) NOT = 0 AND %s(2) NOT = 335544366",
INDENT, names[isc_status_pos], names[isc_status_pos]);
}
//____________________________________________________________
//
// Generate the call to open (or create) a blob.
//
static void gen_blob_open( const act* action)
{
const TEXT* pattern1 =
"CALL \"isc_%IFcreate%ELopen%EN_blob2\" USING %V1, %RF%DH%RE, %RF%RT%RE, %RF%BH%RE, %RF%FR%RE, %VF%N1%VE, %RF%I1%RE\n";
const TEXT* pattern2 =
"CALL \"isc_%IFcreate%ELopen%EN_blob2\" USING %V1, %RF%DH%RE, %RF%RT%RE, %RF%BH%RE, %RF%FR%RE, %VF0%VE, %VF0%VE\n";
if (gpreGlob.sw_auto && (action->act_flags & ACT_sql))
{
t_start_auto(action->act_request, status_vector(action), action, true);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", request_trans(action, action->act_request));
}
TEXT s[MAX_REF_SIZE];
const blb* blob;
const ref* reference;
if (action->act_flags & ACT_sql)
{
gen_cursor_open(action, action->act_request);
blob = (blb*) action->act_request->req_blobs;
reference = ((open_cursor*) action->act_object)->opn_using;
gen_name(s, reference, true);
}
else
{
blob = (blb*) action->act_object;
reference = blob->blb_reference;
}
const USHORT column = strlen(names[COLUMN]);
PAT args;
args.pat_condition = (action->act_type == ACT_blob_create); // open or create blob
args.pat_vector1 = status_vector(action); // status vector
args.pat_database = blob->blb_request->req_database; // database handle
args.pat_request = blob->blb_request; // transaction handle
args.pat_blob = blob; // blob handle
args.pat_reference = reference; // blob identifier
args.pat_ident1 = blob->blb_bpb_ident; // blob parameter block
if ((action->act_flags & ACT_sql) && action->act_type == ACT_blob_open)
printa(names[COLUMN], false, "MOVE %s TO %s", reference->ref_value, s);
if (args.pat_value1 = blob->blb_bpb_length)
PATTERN_expand(column, pattern1, &args);
else
PATTERN_expand(column, pattern2, &args);
if (action->act_flags & ACT_sql)
{
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
if (action->act_type == ACT_blob_create)
{
printa(names[COLUMN], false, "IF SQLCODE = 0 THEN");
printa(names[COLUMN], false, "MOVE %s TO %s", s, reference->ref_value);
printa(names[COLUMN], false, "END-IF");
}
}
}
//____________________________________________________________
//
// Callback routine for BLR pretty printer.
//
static void gen_blr(void* /*user_arg*/, SSHORT /*offset*/, const char* string)
{
int max_line, max_diff;
if (isAnsiCobol(gpreGlob.sw_cob_dialect))
{
max_line = 70;
max_diff = 7;
}
else
{
max_line = 255;
max_diff = 30;
}
const int comment = strlen(names[COMMENT]);
int indent = 2 * strlen(INDENT);
const char* p = string;
while (*p == ' ')
{
p++;
indent++;
}
int length = strlen(p);
if (comment + indent > max_line)
indent = max_line - comment;
char buffer[256];
bool first_line = true;
while (length > 0 && length + indent + comment > max_line)
{
// if we did not find somewhere to break between the 200th and 256th
// character just print out 256 characters
const char* q = p;
for (bool open_quote = false; (q - p + indent + comment) < max_line; q++)
{
if ((q - p + indent + comment) > max_line - max_diff && *q == ',' && !open_quote)
{
break;
}
if (*q == '\'' && *(q - 1) != '\\')
open_quote = !open_quote;
}
fprintf(gpreGlob.out_file, "%s", names[COMMENT]);
for (int i = 0; i < indent; i++)
fputc(' ', gpreGlob.out_file);
q++;
strncpy(buffer, p, q - p);
buffer[q - p] = 0;
fprintf(gpreGlob.out_file, "%s\n", buffer);
length = length - (q - p);
p = q;
if (first_line)
{
first_line = false;
indent += strlen(INDENT);
if (comment + indent > max_line)
indent = max_line - comment;
}
}
fprintf(gpreGlob.out_file, "%s", names[COMMENT]);
for (int i = 0; i < indent; i++)
fputc(' ', gpreGlob.out_file);
fprintf(gpreGlob.out_file, "%s\n", p);
}
//____________________________________________________________
//
// Zap all know handles.
//
static void gen_clear_handles() // const act* action)
{
for (const gpre_req* request = gpreGlob.requests; request; request = request->req_next)
{
if (!(request->req_flags & REQ_exp_hand))
printa(names[COLUMN], true, "%s = 0;", request->req_handle);
}
}
//____________________________________________________________
//
// Generate text to compile a request.
//
static void gen_compile( const act* action)
{
const gpre_req* request = action->act_request;
const gpre_dbb* db = request->req_database;
const gpre_sym* symbol = db->dbb_name;
// generate automatic ready if appropriate
if (gpreGlob.sw_auto)
t_start_auto(request, status_vector(action), action, true);
// always generate a compile, a test for the success of the compile,
// and an end to the 'if not compiled test
// generate an 'if not compiled'
printa(names[COLUMN], false, "IF %s = 0 THEN", request->req_handle);
if (gpreGlob.sw_auto && action->act_error)
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", request_trans(action, request));
sprintf(output_buffer, "%sCALL \"%s%s\" USING %s, %s%s, %s%s, %s%d%s, %s%s%d\n",
names[COLUMN], ISC_COMPILE_REQUEST,
(request->req_flags & REQ_exp_hand) ? "" : "2",
status_vector(action), BY_REF, symbol->sym_string, BY_REF,
request->req_handle, BY_VALUE, request->req_length, END_VALUE,
BY_REF, names[isc_a_pos], request->req_ident);
COB_print_buffer(output_buffer, true);
if (gpreGlob.sw_auto && action->act_error)
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
printa(names[COLUMN], false, "END-IF");
// If blobs are present, zero out all of the blob handles. After this
// point, the handles are the user's responsibility
for (const blb* blob = request->req_blobs; blob; blob = blob->blb_next)
{
sprintf(output_buffer, "%sMOVE 0 TO %s%d\n",
names[COLUMN], names[isc_a_pos], blob->blb_ident);
COB_print_buffer(output_buffer, false);
}
}
//____________________________________________________________
//
// Generate a call to create a database.
//
static void gen_create_database( const act* action)
{
TEXT s1[32], s1Tmp[32], s2[32], s2Tmp[32];
gpre_req* request = ((mdbb*) action->act_object)->mdbb_dpb_request;
gpre_dbb* db = (gpre_dbb*) request->req_database;
if (request)
{
sprintf(s1, "%s%dL", names[isc_b_pos], request->req_ident);
if (request->req_flags & REQ_extend_dpb)
sprintf(s2, "%s%dp", names[isc_b_pos], request->req_ident);
else
sprintf(s2, "%s%d", names[isc_b_pos], request->req_ident);
// if the dpb needs to be extended at runtime to include items
// in host variables, do so here; this assumes that there is
// always a request generated for runtime variables
if (request->req_flags & REQ_extend_dpb)
{
if (request->req_length)
{
sprintf(output_buffer, "%sMOVE %s%d to %s\n",
names[COLUMN], names[isc_b_pos], request->req_ident, s2);
}
if (db->dbb_r_user)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 28, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_DESC, db->dbb_r_user,
BY_VALUE, strlen(db->dbb_r_user) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
if (db->dbb_r_password)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 29, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_DESC, db->dbb_r_password,
BY_VALUE, strlen(db->dbb_r_password) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
// Process Role Name, isc_dpb_sql_role_name/60
if (db->dbb_r_sql_role)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 60, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_DESC, db->dbb_r_sql_role,
BY_VALUE, strlen(db->dbb_r_sql_role) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
if (db->dbb_r_lc_messages)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 47, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_REF, db->dbb_r_lc_messages,
BY_VALUE, strlen(db->dbb_r_lc_messages) - 2,
END_VALUE);
COB_print_buffer(output_buffer, true);
}
if (db->dbb_r_lc_ctype)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s %s%s, BY VALUE 48, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_REF, db->dbb_r_lc_ctype,
BY_VALUE, strlen(db->dbb_r_lc_ctype) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
}
if (request->req_flags & REQ_extend_dpb)
{
sprintf(s1Tmp, "%s%s%s", BY_VALUE, s1, END_VALUE);
sprintf(s2Tmp, "%s%s%s", BY_VALUE, s2, END_VALUE);
}
else
{
sprintf(s2Tmp, "%s%s", BY_REF, s2);
sprintf(s1Tmp, "%s%d%s", BY_VALUE, request->req_length, END_VALUE);
}
}
for (const gpre_dbb* dbisc = gpreGlob.isc_databases; dbisc; dbisc = dbisc->dbb_next)
{
if (strcmp(dbisc->dbb_filename, db->dbb_filename) == 0)
db->dbb_id = dbisc->dbb_id;
}
TEXT dbname[128];
sprintf(dbname, "%s%ddb", names[isc_b_pos], db->dbb_id);
sprintf(output_buffer, "%sCALL \"%s\" USING %s, %s%d%s, %s%s, %s%s, %s, %s, %s0%s\n",
names[COLUMN],
ISC_CREATE_DATABASE,
status_vector(action),
BY_VALUE, strlen(db->dbb_filename), END_VALUE,
BY_REF, dbname,
BY_REF, db->dbb_name->sym_string,
request->req_length ? s1Tmp : OMITTED,
request->req_length ? s2Tmp : OMITTED, BY_VALUE, END_VALUE);
COB_print_buffer(output_buffer, true);
// if the dpb was extended, free it here
if (request && request->req_flags & REQ_extend_dpb)
{
if (request->req_length)
{
sprintf(output_buffer, "if (%s != %s%d)", s2, names[isc_b_pos], request->req_ident);
COB_print_buffer(output_buffer, true);
}
sprintf(output_buffer, "%sCALL \"%s\" USING %s\n", names[COLUMN], ISC_FREE, s2Tmp);
COB_print_buffer(output_buffer, true);
// reset the length of the dpb
sprintf(output_buffer, "%sMOVE %d to %s", names[COLUMN], request->req_length, s1);
COB_print_buffer(output_buffer, true);
}
const bool save_sw_auto = gpreGlob.sw_auto;
gpreGlob.sw_auto = true;
printa(names[COLUMN], false, "IF %s(2) = 0 THEN", names[isc_status_pos]);
gen_ddl(action);
gpreGlob.sw_auto = save_sw_auto;
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate substitution text for END_STREAM.
//
static void gen_cursor_close( const act* action, const gpre_req* request)
{
printa(names[COLUMN], false, "IF %s%dS NOT = 0 THEN", names[isc_a_pos], request->req_ident);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s%dS, %s%d%s",
ISC_DSQL_FREE,
status_vector(action),
BY_REF, names[isc_a_pos], request->req_ident, BY_VALUE, 1, END_VALUE);
printa(names[COLUMN], false, "IF %s(2) = 0 THEN", names[isc_status_pos]);
}
//____________________________________________________________
//
// Generate text to initialize a cursor.
//
static void gen_cursor_init( const act* action)
{
// If blobs are present, zero out all of the blob handles. After this
// point, the handles are the user's responsibility
if (action->act_request->req_flags & (REQ_sql_blob_open | REQ_sql_blob_create))
{
printa(names[COLUMN], false, "MOVE 0 TO %s%d", names[isc_a_pos],
action->act_request->req_blobs->blb_ident);
}
}
//____________________________________________________________
//
// Generate text to open an embedded SQL cursor.
//
static void gen_cursor_open( const act* action, const gpre_req* request)
{
if (action->act_type != ACT_open)
printa(names[COLUMN], false, "IF %s%dS = 0 THEN", names[isc_a_pos], request->req_ident);
else
printa(names[COLUMN], false, "IF (%s%dS = 0) AND %s NOT = 0 THEN",
names[isc_a_pos], request->req_ident, request->req_handle);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", request->req_database->dbb_name->sym_string);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%s%dS",
ISC_DSQL_ALLOCATE,
status_vector(action),
BY_REF, request->req_database->dbb_name->sym_string,
BY_REF, names[isc_a_pos], request->req_ident);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "IF %s%dS NOT = 0 THEN", names[isc_a_pos], request->req_ident);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", request_trans(action, request));
TEXT s[MAX_CURSOR_SIZE];
make_name_formatted(s, "ISC-CONST-%s", ((open_cursor*) action->act_object)->opn_cursor);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s%dS, %s%s, %s0%s",
ISC_DSQL_SET_CURSOR,
status_vector(action),
BY_REF, names[isc_a_pos], request->req_ident,
BY_REF, s, BY_VALUE, END_VALUE);
printa(names[COLUMN], false, "IF %s(2) = 0 THEN", names[isc_status_pos]);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%s%dS, %s0%s, %s, %s-1%s, %s0%s, %s",
ISC_DSQL_EXECUTE,
status_vector(action),
BY_REF, request_trans(action, request),
BY_REF, names[isc_a_pos], request->req_ident,
BY_VALUE, END_VALUE,
OMITTED, BY_VALUE, END_VALUE, BY_VALUE, END_VALUE, OMITTED);
printa(names[COLUMN], false, "IF %s(2) = 0 THEN", names[isc_status_pos]);
}
//____________________________________________________________
//
// Generate insertion text for the database statement.
//
static void gen_database( const act* action)
{
if (global_first_flag)
return;
global_first_flag = true;
sprintf(output_buffer, "\n%s**** GDS Preprocessor Definitions ****\n\n", names[COMMENT]);
COB_print_buffer(output_buffer, false);
printa(names[COLUMN_0], false, "01 %s PIC S9(18) USAGE COMP VALUE IS 0.", names[isc_blob_null_pos]);
printa(names[COLUMN_0], false, "01 %s PIC S9(9) USAGE COMP EXTERNAL.", names[ISC_SQLCODE]);
bool all_static = true;
bool all_extern = true;
USHORT count = 0;
for (gpre_dbb* db = gpreGlob.isc_databases; db; db = db->dbb_next)
{
all_static = all_static && (db->dbb_scope == DBB_STATIC);
all_extern = all_extern && (db->dbb_scope == DBB_EXTERN);
const TEXT* name = db->dbb_name->sym_string;
printa(names[COLUMN_0], false, "01 %s%s PIC S9(9) USAGE COMP%s.",
name,
all_static ? "" : all_extern ? " IS EXTERNAL" : " IS GLOBAL",
all_extern ? "" : " VALUE IS 0");
// generate variables to hold database name strings for attach call
db->dbb_id = ++count;
if (db->dbb_runtime)
{
printa(names[COLUMN_0], false, "01 %s%ddb PIC X(%d) VALUE IS \"%s\".",
names[isc_b_pos], db->dbb_id, strlen(db->dbb_runtime), db->dbb_runtime);
}
else if (db->dbb_filename)
{
printa(names[COLUMN_0], false, "01 %s%ddb PIC X(%d) VALUE IS \"%s\".",
names[isc_b_pos], db->dbb_id, strlen(db->dbb_filename), db->dbb_filename);
}
for (const tpb* tpb_iterator = db->dbb_tpbs;
tpb_iterator;
tpb_iterator = tpb_iterator->tpb_dbb_next)
{
gen_tpb(tpb_iterator);
}
}
// loop through actions: find readys to generate vars for quoted strings
TEXT fname[80], s1[MAX_CURSOR_SIZE];
bool dyn_immed = false;
for (const act* local_act = action; local_act; local_act = local_act->act_rest)
{
switch (local_act->act_type)
{
case ACT_create_database:
break; // no statement;
case ACT_ready:
for (rdy* ready = (rdy*) local_act->act_object; ready; ready = ready->rdy_next)
{
const TEXT* s = ready->rdy_filename;
if (s && ((*s == '\'') || (*s == '\"')))
{
int len = strlen(++s);
if (len >= sizeof(fname))
len = sizeof(fname);
strncpy(fname, s, len);
fname[len - 1] = 0;
ready->rdy_id = ++count;
printa(names[COLUMN_0], false, "01 %s%ddb PIC X(%d) VALUE IS \"%s\".",
names[isc_b_pos], ready->rdy_id, strlen(fname), fname);
}
}
break;
case ACT_dyn_cursor:
case ACT_dyn_prepare:
case ACT_open:
case ACT_blob_open:
case ACT_blob_create:
if (local_act->act_flags & ACT_sql)
{
const gpre_sym* cur_stmt;
switch (local_act->act_type)
{
case ACT_dyn_cursor:
cur_stmt = ((dyn*) local_act->act_object)->dyn_cursor_name;
break;
case ACT_dyn_prepare:
cur_stmt = ((dyn*) local_act->act_object)->dyn_statement_name;
break;
default:
cur_stmt = ((open_cursor*) local_act->act_object)->opn_cursor;
}
// Only generate one declaration per cursor or statement name
const act* chck_dups;
for (chck_dups = local_act->act_rest; chck_dups; chck_dups = chck_dups->act_rest)
{
const gpre_sym* dup;
switch (chck_dups->act_type)
{
case ACT_dyn_cursor:
dup = ((dyn*) chck_dups->act_object)->dyn_cursor_name;
break;
case ACT_dyn_prepare:
dup = ((dyn*) chck_dups->act_object)->dyn_statement_name;
break;
case ACT_open:
case ACT_blob_open:
case ACT_blob_create:
if (chck_dups->act_flags & ACT_sql)
{
dup = ((open_cursor*) chck_dups->act_object)->opn_cursor;
break;
}
// else fall into
default:
continue;
}
if (!strcmp(dup->sym_string, cur_stmt->sym_string))
break;
}
if (!chck_dups)
{
make_name(s1, cur_stmt);
printa(names[COLUMN_0], false, "01 ISC-CONST-%s PIC X(%d) VALUE IS \"%s \".",
s1, strlen(s1) + 1, s1);
printa(names[COLUMN_0], false, "01 ISC-CONST-%sL PIC S9(4) USAGE %s.",
s1, COMP_VALUE);
}
}
break;
case ACT_dyn_immediate:
if (!dyn_immed)
{
dyn_immed = true;
printa(names[COLUMN_0], false, "01 ISC-CONST-DYN-IMMEDL PIC S9(4) USAGE %s.",
COMP_VALUE);
}
break;
case ACT_procedure:
{
const gpre_req* request = local_act->act_request;
const gpre_prc* procedure = (gpre_prc*) local_act->act_object;
const gpre_sym* symbol = procedure->prc_symbol;
const char* sname = symbol->sym_string;
printa(names[COLUMN_0], false, "01 %s%dprc PIC X(%d) VALUE IS \"%s\".",
names[isc_b_pos], request->req_ident, strlen(sname), sname);
}
}
} // for
printa(names[COLUMN_0], false, "01 %s%s PIC S9(9) USAGE COMP%s.", names[isc_trans_pos],
all_static ? "" : all_extern ? " IS EXTERNAL" : " IS GLOBAL",
all_extern ? "" : " VALUE IS 0");
printa(names[COLUMN_0], false, "01 %s%s.", names[isc_status_vector_pos],
all_static ? "" : all_extern ? " IS EXTERNAL" : " IS GLOBAL");
printa(names[COLUMN], false, "03 %s PIC S9(9) USAGE COMP OCCURS 20 TIMES.", names[isc_status_pos]);
printa(names[COLUMN_0], false, "01 %s%s.", names[isc_status_vector2_pos],
all_static ? "" : all_extern ? " IS EXTERNAL" : " IS GLOBAL");
printa(names[COLUMN], false, "03 %s PIC S9(9) USAGE COMP OCCURS 20 TIMES.", names[ISC_STATUS2]);
printa(names[COLUMN_0], false, "01 %s PIC S9(9) USAGE COMP.", names[ISC_ARRAY_LENGTH]);
printa(names[COLUMN_0], false, "01 SQLCODE%s PIC S9(9) USAGE %s%s.",
all_static ? "" : all_extern ? " IS EXTERNAL" : " IS GLOBAL",
COMP_VALUE, all_extern ? "" : " VALUE IS 0");
for (gpre_req* request = gpreGlob.requests; request; request = request->req_next)
{
gen_request(request);
for (const gpre_port* port = request->req_ports; port; port = port->por_next)
make_port(port);
for (const blb* blob = request->req_blobs; blob; blob = blob->blb_next)
{
printa(names[COLUMN_0], false, "01 %s%d PIC S9(9) USAGE COMP.",
names[isc_a_pos], blob->blb_ident);
printa(names[COLUMN_0], false, "01 %s%d PIC X(%d).",
names[isc_a_pos], blob->blb_buff_ident, blob->blb_seg_length);
printa(names[COLUMN_0], false, "01 %s%d PIC S9(4) USAGE %s.",
names[isc_a_pos], blob->blb_len_ident, COMP_VALUE);
}
// Array declarations
const gpre_port* port = request->req_primary;
if (port)
for (ref* reference = port->por_references; reference; reference = reference->ref_next)
{
if (reference->ref_field->fld_array_info)
make_array_declaration(reference);
}
}
// Generate event parameter block for each event
USHORT max_count = 0;
for (const gpre_lls* stack_ptr = gpreGlob.events; stack_ptr; stack_ptr = stack_ptr->lls_next)
{
count = gen_event_block((const act*) stack_ptr->lls_object);
max_count = MAX(count, max_count);
}
if (max_count)
{
printa(names[COLUMN_0], false, "01 %s.", names[ISC_EVENTS_VECTOR]);
printa(names[COLUMN], false, "03 %s PIC S9(9) USAGE COMP OCCURS %d TIMES.",
names[ISC_EVENTS], max_count);
printa(names[COLUMN_0], false, "01 %s.", names[ISC_EVENT_NAMES_VECTOR]);
printa(names[COLUMN], false, "03 %s PIC S9(9) USAGE COMP OCCURS %d TIMES.",
names[ISC_EVENT_NAMES], max_count);
printa(names[COLUMN_0], false, "01 %s.", names[ISC_EVENT_NAMES_VECTOR2]);
printa(names[COLUMN], false, "03 %s PIC X(31) OCCURS %d TIMES.",
names[ISC_EVENT_NAMES2], max_count);
}
printa(names[COMMENT], false, "**** end of GPRE definitions ****\n");
}
//____________________________________________________________
//
// Generate a call to update metadata.
//
static void gen_ddl( const act* action)
{
// Set up command type for call to RDB$DDL
const gpre_req* request = action->act_request;
if (gpreGlob.sw_auto)
{
t_start_auto(0, status_vector(action), action, true);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", names[isc_trans_pos]);
}
sprintf(output_buffer,
"%sCALL \"%s\" USING %s, %s%s, %s%s, %s%d%s, %s%s%d\n",
names[COLUMN], ISC_DDL, status_vector(action), BY_REF,
request->req_database->dbb_name->sym_string, BY_REF,
names[isc_trans_pos], BY_VALUE, request->req_length, END_VALUE,
BY_REF, names[isc_a_pos], request->req_ident);
COB_print_buffer(output_buffer, true);
if (gpreGlob.sw_auto)
{
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "IF %s(2) = 0 THEN", names[isc_status_pos]);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s", ISC_COMMIT_TRANSACTION,
status_vector(action), BY_REF, names[isc_trans_pos]);
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "IF %s(2) NOT = 0 THEN", names[isc_status_pos]);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s",
ISC_ROLLBACK_TRANSACTION, OMITTED, BY_REF, names[isc_trans_pos]);
printa(names[COLUMN], false, "END-IF");
}
COB_print_buffer(output_buffer, true);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_close( const act* action)
{
TEXT s[MAX_CURSOR_SIZE];
const dyn* statement = (dyn*) action->act_object;
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_cursor_name);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s",
ISC_CLOSE, status_vector(action), BY_REF, s);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_declare( const act* action)
{
TEXT s1[MAX_CURSOR_SIZE], s2[MAX_CURSOR_SIZE];
const dyn* statement = (dyn*) action->act_object;
make_name_formatted(s1, "ISC-CONST-%s", statement->dyn_statement_name);
make_name_formatted(s2, "ISC-CONST-%s", statement->dyn_cursor_name);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%s",
ISC_DECLARE, status_vector(action), BY_REF, s1, BY_REF, s2);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_describe(const act* action, bool bind_flag)
{
TEXT s[MAX_CURSOR_SIZE];
const dyn* statement = (dyn*) action->act_object;
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_statement_name);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%d%s, %s%s",
bind_flag ? ISC_DESCRIBE_BIND : ISC_DESCRIBE,
status_vector(action),
BY_REF, s,
BY_VALUE, gpreGlob.sw_sql_dialect, END_VALUE, BY_REF, statement->dyn_sqlda);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_execute( const act* action)
{
TEXT s[MAX_CURSOR_SIZE];
gpre_req* request;
gpre_req req_const;
const dyn* statement = (dyn*) action->act_object;
const TEXT* transaction;
if (statement->dyn_trans)
{
transaction = statement->dyn_trans;
request = &req_const;
request->req_trans = transaction;
}
else
{
transaction = names[isc_trans_pos];
request = NULL;
}
if (gpreGlob.sw_auto)
{
t_start_auto(request, status_vector(action), action, true);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", transaction);
}
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_statement_name);
printa(names[COLUMN], true,
statement->dyn_sqlda2 ?
"CALL \"%s\" USING %s, %s%s, %s%s, %s%d%s, %s%s, %s%s" :
"CALL \"%s\" USING %s, %s%s, %s%s, %s%d%s, %s%s",
statement->dyn_sqlda2 ? ISC_EXECUTE2 : ISC_EXECUTE,
status_vector(action),
BY_REF, transaction,
BY_REF, s,
BY_VALUE, gpreGlob.sw_sql_dialect, END_VALUE,
statement->dyn_sqlda ? BY_REF : "",
statement->dyn_sqlda ? statement->dyn_sqlda : OMITTED,
statement->dyn_sqlda2 ? BY_REF : "",
statement->dyn_sqlda2 ? statement->dyn_sqlda2 : OMITTED);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_fetch( const act* action)
{
TEXT s[MAX_CURSOR_SIZE];
const dyn* statement = (dyn*) action->act_object;
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_cursor_name);
printa(names[COLUMN], true, FETCH_CALL_TEMPLATE,
ISC_FETCH,
status_vector(action),
BY_REF, s,
BY_VALUE, gpreGlob.sw_sql_dialect, END_VALUE,
statement->dyn_sqlda ? BY_REF : "",
statement->dyn_sqlda ? statement->dyn_sqlda : OMITTED);
printa(names[COLUMN], false, "IF SQLCODE NOT = 100 THEN");
set_sqlcode(action);
printa(names[COLUMN], false, "END-IF");
}
//____________________________________________________________
//
// Generate code for an EXECUTE IMMEDIATE dynamic SQL statement.
//
static void gen_dyn_immediate( const act* action)
{
gpre_req* request;
gpre_req req_const;
const dyn* statement = (dyn*) action->act_object;
const TEXT* transaction;
if (statement->dyn_trans)
{
transaction = statement->dyn_trans;
request = &req_const;
request->req_trans = transaction;
}
else
{
transaction = names[isc_trans_pos];
request = NULL;
}
const gpre_dbb* database = statement->dyn_database;
TEXT s[64];
const TEXT* s2 = "ISC-CONST-DYN-IMMEDL";
printa(names[COLUMN], true, GET_LEN_CALL_TEMPLATE, STRING_LENGTH, statement->dyn_string, s2);
sprintf(s, " %s%s%s,", BY_VALUE, s2, END_VALUE);
if (gpreGlob.sw_auto)
{
t_start_auto(request, status_vector(action), action, true);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", transaction);
}
printa(names[COLUMN], true,
statement->dyn_sqlda2 ?
"CALL \"%s\" USING %s, %s%s, %s%s,%s %s%s, %s%d%s, %s%s, %s%s" :
"CALL \"%s\" USING %s, %s%s, %s%s,%s %s%s, %s%d%s, %s%s",
statement->dyn_sqlda2 ? ISC_EXECUTE_IMMEDIATE2 : ISC_EXECUTE_IMMEDIATE,
status_vector(action), BY_REF, database->dbb_name->sym_string,
BY_REF, transaction, s, BY_DESC, statement->dyn_string, BY_VALUE,
gpreGlob.sw_sql_dialect, END_VALUE,
statement->dyn_sqlda ? BY_REF : "",
statement->dyn_sqlda ? statement->dyn_sqlda : OMITTED,
statement->dyn_sqlda2 ? BY_REF : "",
statement->dyn_sqlda2 ? statement->dyn_sqlda2 : OMITTED);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_insert( const act* action)
{
TEXT s[MAX_CURSOR_SIZE];
const dyn* statement = (dyn*) action->act_object;
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_cursor_name);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%d%s, %s%s",
ISC_INSERT,
status_vector(action),
BY_REF, s,
BY_VALUE, gpreGlob.sw_sql_dialect, END_VALUE,
statement->dyn_sqlda ? BY_REF : "",
statement->dyn_sqlda ? statement->dyn_sqlda : OMITTED);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_open( const act* action)
{
TEXT s[MAX_CURSOR_SIZE];
gpre_req* request;
gpre_req req_const;
const dyn* statement = (dyn*) action->act_object;
const TEXT* transaction;
if (statement->dyn_trans)
{
transaction = statement->dyn_trans;
request = &req_const;
request->req_trans = transaction;
}
else
{
transaction = names[isc_trans_pos];
request = NULL;
}
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_cursor_name);
if (gpreGlob.sw_auto)
{
t_start_auto(request, status_vector(action), action, true);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", transaction);
}
printa(names[COLUMN], true,
statement->dyn_sqlda2 ?
"CALL \"%s\" USING %s, %s%s, %s%s, %s%d%s, %s%s, %s%s" :
"CALL \"%s\" USING %s, %s%s, %s%s, %s%d%s, %s%s",
statement->dyn_sqlda2 ? ISC_OPEN2 : ISC_OPEN,
status_vector(action),
BY_REF, transaction,
BY_REF, s,
BY_VALUE, gpreGlob.sw_sql_dialect, END_VALUE,
statement->dyn_sqlda ? BY_REF : "",
statement->dyn_sqlda ? statement->dyn_sqlda : OMITTED,
statement->dyn_sqlda2 ? BY_REF : "",
statement->dyn_sqlda2 ? statement->dyn_sqlda2 : OMITTED);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate a dynamic SQL statement.
//
static void gen_dyn_prepare( const act* action)
{
gpre_req* request;
gpre_req req_const;
const dyn* statement = (dyn*) action->act_object;
const gpre_dbb* database = statement->dyn_database;
const TEXT* transaction;
if (statement->dyn_trans)
{
transaction = statement->dyn_trans;
request = &req_const;
request->req_trans = transaction;
}
else
{
transaction = names[isc_trans_pos];
request = NULL;
}
TEXT s[MAX_CURSOR_SIZE], s3[80];
make_name_formatted(s, "ISC-CONST-%s", statement->dyn_statement_name);
TEXT s2[MAX_CURSOR_SIZE + 1];
sprintf(s2, "%sL", s);
printa(names[COLUMN], true, GET_LEN_CALL_TEMPLATE, STRING_LENGTH, statement->dyn_string, s2);
fb_utils::snprintf(s3, sizeof(s3), " %s%s%s,", BY_VALUE, s2, END_VALUE);
if (gpreGlob.sw_auto)
{
t_start_auto(request, status_vector(action), action, true);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", transaction);
}
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%s, %s%s,%s %s%s, %s%d%s, %s%s",
ISC_PREPARE,
status_vector(action),
BY_REF, database->dbb_name->sym_string,
BY_REF, transaction,
BY_REF, s,
s3,
BY_DESC, statement->dyn_string,
BY_VALUE, gpreGlob.sw_sql_dialect, END_VALUE,
statement->dyn_sqlda ? BY_REF : "",
statement->dyn_sqlda ? statement->dyn_sqlda : OMITTED);
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate substitution text for END_MODIFY.
//
static void gen_emodify( const act* action)
{
TEXT s1[MAX_REF_SIZE], s2[MAX_REF_SIZE];
const upd* modify = (upd*) action->act_object;
for (const ref* reference = modify->upd_port->por_references; reference;
reference = reference->ref_next)
{
const ref* source = reference->ref_source;
if (!source)
continue;
const gpre_fld* field = reference->ref_field;
gen_name(s1, source, true);
gen_name(s2, reference, true);
switch (field->fld_dtype)
{
case dtype_blob:
case dtype_quad:
case dtype_date:
sprintf(output_buffer, "%sCALL \"isc_qtoq\" USING %s, %s\n", names[COLUMN], s1, s2);
break;
default:
sprintf(output_buffer, "%sMOVE %s TO %s\n", names[COLUMN], s1, s2);
}
COB_print_buffer(output_buffer, true);
if (field->fld_array_info)
gen_get_or_put_slice(action, reference, false);
}
gen_send(action, modify->upd_port);
}
//____________________________________________________________
//
// Generate substitution text for END_STORE.
//
static void gen_estore( const act* action)
{
const gpre_req* request = action->act_request;
gen_start(action, request->req_primary);
}
//____________________________________________________________
//
// Generate end-if for AT_END if statement
//
static void gen_end_fetch()
{
printa(names[COLUMN], false, "END-IF");
}
//____________________________________________________________
//
// Generate definitions associated with a single request.
//
static void gen_endfor( const act* action)
{
const gpre_req* request = action->act_request;
if (request->req_sync)
gen_send(action, request->req_sync);
gen_receive(action, request->req_primary);
printa(names[COLUMN], false, "END-PERFORM");
}
//____________________________________________________________
//
// Generate substitution text for ERASE.
//
static void gen_erase( const act* action)
{
const upd* erase = (upd*) action->act_object;
gen_send(action, erase->upd_port);
}
//____________________________________________________________
//
// Generate event parameter blocks for use
// with a particular call to isc_event_wait.
//
static SSHORT gen_event_block( const act* action)
{
gpre_nod* init = (gpre_nod*) action->act_object;
int ident = CMP_next_ident();
init->nod_arg[2] = (gpre_nod*) (IPTR) ident;
printa(names[COLUMN_0], false, "01 %s%dA PIC S9(9) USAGE COMP.", names[isc_a_pos], ident);
printa(names[COLUMN_0], false, "01 %s%dB PIC S9(9) USAGE COMP.", names[isc_a_pos], ident);
printa(names[COLUMN_0], false, "01 %s%dL PIC S9(4) USAGE COMP.", names[isc_a_pos], ident);
const gpre_nod* list = init->nod_arg[1];
return list->nod_count;
}
//____________________________________________________________
//
// Generate substitution text for EVENT_INIT.
//
static void gen_event_init( const act* action)
{
#ifdef GIVING_SUPPORTED
const TEXT *pattern1 =
"CALL \"%S1\" USING %RF%S4%N1A%RE, %RF%S4%N1B%RE, %VF%N2%VE, %RF%S6%RE GIVING %S4%N1L";
#else
const TEXT *pattern1 =
"CALL \"%S1\" USING %RF%S4%N1A%RE, %RF%S4%N1B%RE, %VF%N2%VE, %RF%S6%RE, %RF%S4%N1L%RE";
#endif
const TEXT *pattern2 =
"CALL \"%S2\" USING %V1, %RF%DH%RE, %VF%S4%N1L%VE, %VF%S4%N1A%VE, %VF%S4%N1B%VE";
const TEXT *pattern3 =
"CALL \"%S3\" USING %S5, %VF%S4%N1L%VE, %VF%S4%N1A%VE, %VF%S4%N1B%VE";
const gpre_nod* init = (gpre_nod*) action->act_object;
const gpre_nod* event_list = init->nod_arg[1];
const SSHORT column = strlen(names[COLUMN]);
PAT args;
args.pat_database = (gpre_dbb*) init->nod_arg[3];
args.pat_vector1 = status_vector(action);
args.pat_value1 = (int) (IPTR) init->nod_arg[2];
args.pat_value2 = (int) event_list->nod_count;
args.pat_string1 = ISC_EVENT_BLOCK;
args.pat_string2 = ISC_EVENT_WAIT;
args.pat_string3 = ISC_EVENT_COUNTS;
args.pat_string4 = names[isc_a_pos];
args.pat_string5 = names[ISC_EVENTS_VECTOR];
args.pat_string6 = names[ISC_EVENT_NAMES_VECTOR];
// generate call to dynamically generate event blocks
TEXT variable[MAX_REF_SIZE];
const gpre_nod *const *ptr, *const *end;
SSHORT count;
for (ptr = event_list->nod_arg, count = 0, end = ptr + event_list->nod_count; ptr < end; ptr++)
{
count++;
const gpre_nod* node = *ptr;
if (node->nod_type == nod_field)
{
const ref* reference = (ref*) node->nod_arg[0];
gen_name(variable, reference, true);
printa(names[COLUMN], false, "MOVE %s TO %s(%d)", variable, names[ISC_EVENT_NAMES2], count);
}
else
printa(names[COLUMN], false, "MOVE %s TO %s(%d)",
(TEXT *) node->nod_arg[0], names[ISC_EVENT_NAMES2], count);
printa(names[COLUMN], true, EVENT_MOVE_TEMPLATE, ISC_BADDRESS,
names[ISC_EVENT_NAMES2], count, names[ISC_EVENT_NAMES], count);
}
PATTERN_expand(column, pattern1, &args);
// generate actual call to event_wait
PATTERN_expand(column, pattern2, &args);
// get change in event counts, copying event parameter block for reuse
PATTERN_expand(column, pattern3, &args);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate substitution text for EVENT_WAIT.
//
static void gen_event_wait( const act* action)
{
const TEXT *pattern1 =
"CALL \"%S2\" USING %V1, %RF%DH%RE, %VF%S4%N1L%VE, %VF%S4%N1A%VE, %VF%S4%N1B%VE";
const TEXT *pattern2 =
"CALL \"%S3\" USING %S5, %VF%S4%N1L%VE, %VF%S4%N1A%VE, %VF%S4%N1B%VE";
gpre_sym* event_name = (gpre_sym*) action->act_object;
// go through the stack of gpreGlob.events, checking to see if the
// event has been initialized and getting the event identifier
const gpre_dbb* database = NULL;
int ident = -1;
for (const gpre_lls* stack_ptr = gpreGlob.events; stack_ptr; stack_ptr = stack_ptr->lls_next)
{
const act* event_action = (const act*) stack_ptr->lls_object;
const gpre_nod* event_init = (gpre_nod*) event_action->act_object;
const gpre_sym* stack_name = (gpre_sym*) event_init->nod_arg[0];
if (!strcmp(event_name->sym_string, stack_name->sym_string))
{
ident = (int) (IPTR) event_init->nod_arg[2];
database = (gpre_dbb*) event_init->nod_arg[3];
}
}
if (ident < 0)
{
TEXT s[64];
fb_utils::snprintf(s, sizeof(s), "event handle \"%s\" not found", event_name->sym_string);
CPR_error(s);
return; // silence non initialized warning
}
const USHORT column = strlen(names[COLUMN]);
PAT args;
args.pat_database = database;
args.pat_vector1 = status_vector(action);
args.pat_value1 = ident;
args.pat_string2 = ISC_EVENT_WAIT;
args.pat_string3 = ISC_EVENT_COUNTS;
args.pat_string4 = names[isc_a_pos];
args.pat_string5 = names[ISC_EVENTS_VECTOR];
// generate calls to wait on the event and to fill out the gpreGlob.events array
PATTERN_expand(column, pattern1, &args);
PATTERN_expand(column, pattern2, &args);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate replacement text for the SQL FETCH statement. The
// epilog FETCH statement is handled by GEN_S_FETCH (generate
// stream fetch).
//
static void gen_fetch( const act* action)
{
gpre_req* request = action->act_request;
#ifdef SCROLLABLE_CURSORS
gpre_port* port = request->req_aport;
if (port)
{
// set up the reference to point to the correct value
// in the linked list of values, and prepare for the
// next FETCH statement if applicable
ref* reference;
for (reference = port->por_references; reference; reference = reference->ref_next)
{
gpre_value* value = reference->ref_values;
reference->ref_value = value->val_value;
reference->ref_values = value->val_next;
}
// find the direction and offset parameters
reference = port->por_references;
const char* offset = reference->ref_value;
reference = reference->ref_next;
const char* direction = reference->ref_value;
// the direction in which the engine will scroll is sticky, so check to see
// the last direction passed to the engine; if the direction is the same and
// the offset is 1, then there is no need to pass the message; this prevents
// extra packets and allows for batch fetches in either direction
printa(names[COLUMN], false,
"IF %s%dDI MOD 2 NOT = %s || %s NOT = 1 THEN", names[isc_a_pos],
request->req_ident, direction, offset);
// assign the direction and offset parameters to the appropriate message,
// then send the message to the engine
asgn_from(action, port->por_references);
gen_send(action, port);
printa(names[COLUMN], false, "MOVE %s TO %s%dDI",
direction, names[isc_a_pos], request->req_ident);
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "IF SQLCODE NOT = 0 THEN");
}
#endif
if (request->req_sync)
gen_send(action, request->req_sync);
SCHAR s[MAX_REF_SIZE];
gen_receive(action, request->req_primary);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", gen_name(s, request->req_eof, true));
printa(names[COLUMN], false, "MOVE 0 TO SQLCODE");
if (gpre_nod* var_list = (gpre_nod*) action->act_object)
for (int i = 0; i < var_list->nod_count; i++) {
asgn_to(action, (ref*) var_list->nod_arg[i]);
}
printa(names[COLUMN], false, "ELSE");
printa(names[COLUMN], false, "MOVE 100 TO SQLCODE");
printa(names[COLUMN], false, "END-IF");
#ifdef SCROLLABLE_CURSORS
if (port)
printa(names[COLUMN], false, "END-IF");
#endif
}
//____________________________________________________________
//
// Generate substitution text for FINISH
//
static void gen_finish( const act* action)
{
if (gpreGlob.sw_auto || ((action->act_flags & ACT_sql) && action->act_type != ACT_disconnect))
{
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", names[isc_trans_pos]);
printa(names[COLUMN], true, " CALL \"%s\" USING %s, %s%s",
(action->act_type != ACT_rfinish) ? ISC_COMMIT_TRANSACTION : ISC_ROLLBACK_TRANSACTION,
status_vector(action), BY_REF, names[isc_trans_pos]);
printa(names[COLUMN], false, "END-IF");
}
// the user may have supplied one or more handles
const gpre_dbb* db = NULL;
for (const rdy* ready = (rdy*) action->act_object; ready; ready = ready->rdy_next)
{
db = ready->rdy_database;
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", db->dbb_name->sym_string);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s", ISC_DETACH_DATABASE,
status_vector(action), BY_REF, db->dbb_name->sym_string);
printa(names[COLUMN], false, "END-IF");
}
// no handles, so finish all known databases
if (!db)
for (db = gpreGlob.isc_databases; db; db = db->dbb_next)
{
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", db->dbb_name->sym_string);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s", ISC_DETACH_DATABASE,
status_vector(action), BY_REF, db->dbb_name->sym_string);
printa(names[COLUMN], false, "END-IF");
}
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate substitution text for FOR statement.
//
static void gen_for( const act* action)
{
TEXT s[MAX_REF_SIZE];
gen_s_start(action);
const gpre_req* request = action->act_request;
gen_receive(action, request->req_primary);
printa(names[COLUMN], false, "PERFORM UNTIL %s = 0", gen_name(s, request->req_eof, true));
const gpre_port* port = action->act_request->req_primary;
if (port)
for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
{
if (reference->ref_field->fld_array_info)
gen_get_or_put_slice(action, reference, true);
}
}
//____________________________________________________________
//
// Generate a function for free standing ANY or statistical.
//
static void gen_function( const act* function)
{
const ref* reference;
const act* action = (const act*) function->act_object;
if (action->act_type != ACT_any)
{
CPR_error("can't generate function");
return;
}
const gpre_req* request = action->act_request;
fprintf(gpreGlob.out_file, "static %s_r (request, transaction", request->req_handle);
TEXT s[MAX_REF_SIZE];
const gpre_port* port = request->req_vport;
if (port)
for (reference = port->por_references; reference; reference = reference->ref_next)
{
fprintf(gpreGlob.out_file, ", %s", gen_name(s, reference->ref_source, true));
}
fprintf(gpreGlob.out_file,
")\n isc_req_handle\trequest;\n isc_tr_handle\ttransaction;\n");
if (port)
for (reference = port->por_references; reference; reference = reference->ref_next)
{
const char* dtype;
const gpre_fld* field = reference->ref_field;
switch (field->fld_dtype)
{
case dtype_short:
dtype = "short";
break;
case dtype_long:
dtype = "long";
break;
case dtype_cstring:
case dtype_text:
dtype = "char*";
break;
case dtype_quad:
dtype = "ISC_QUAD";
break;
case dtype_date:
case dtype_blob:
dtype = "ISC_QUAD";
break;
case dtype_real:
dtype = "float";
break;
case dtype_double:
dtype = "double";
break;
default:
CPR_error("gen_function: unsupported datatype");
return;
}
fprintf(gpreGlob.out_file, " %s\t%s;\n", dtype, gen_name(s, reference->ref_source, true));
}
fprintf(gpreGlob.out_file, "{\n");
for (port = request->req_ports; port; port = port->por_next)
make_port(port);
fprintf(gpreGlob.out_file, "\n\n");
gen_s_start(action);
gen_receive(action, request->req_primary);
for (port = request->req_ports; port; port = port->por_next)
for (reference = port->por_references; reference; reference = reference->ref_next)
{
if (reference->ref_field->fld_array_info)
gen_get_or_put_slice(action, reference, true);
}
port = request->req_primary;
fprintf(gpreGlob.out_file, "\nreturn %s;\n}\n", gen_name(s, port->por_references, true));
}
//____________________________________________________________
//
// Generate a call to isc_get_slice
// or isc_put_slice for an array.
//
static void gen_get_or_put_slice(const act* action,
const ref* reference,
bool get)
{
const TEXT* pattern1 =
"CALL \"%S7\" USING %V1, %RF%DH%RE, %RF%S1%RE, %RF%S2%RE, %VF%N1%VE, %RF%S3%RE, %VF%N2%VE, %VF%S4%VE, %VF%L1%VE, %RF%S5%RE, %RF%S6%RE";
const TEXT* pattern2 =
"CALL \"%S7\" USING %V1, %RF%DH%RE, %RF%S1%RE, %RF%S2%RE, %VF%N1%VE, %RF%S3%RE, %VF%N2%VE, %VF%S4%VE, %VF%L1%VE, %RF%S5%RE";
if (!(reference->ref_flags & REF_fetch_array))
return;
const int column = strlen(names[COLUMN]);
PAT args;
args.pat_condition = get; // get or put slice
args.pat_vector1 = status_vector(action); // status vector
args.pat_database = action->act_request->req_database; // database handle
args.pat_string1 = action->act_request->req_trans; // transaction handle
TEXT s1[MAX_REF_SIZE];
gen_name(s1, reference, true); // blob handle
args.pat_string2 = s1;
args.pat_value1 = reference->ref_sdl_length; // slice descr length
TEXT s2[MAX_REF_SIZE];
sprintf(s2, "%s%d", names[isc_a_pos], reference->ref_sdl_ident); // slice description
args.pat_string3 = s2;
args.pat_value2 = 0; // parameter length
args.pat_string4 = "0"; // parameter
args.pat_long1 = reference->ref_field->fld_array_info->ary_size;
// slice size
TEXT s4[MAX_REF_SIZE + 2];
if (action->act_flags & ACT_sql)
{
args.pat_string5 = reference->ref_value;
}
else
{
sprintf(s4, "%s%dL", names[isc_a_pos], reference->ref_field->fld_array_info->ary_ident);
args.pat_string5 = s4; // array name
}
args.pat_string6 = names[ISC_ARRAY_LENGTH]; // return length
args.pat_string7 = get ? ISC_GET_SLICE : ISC_PUT_SLICE;
PATTERN_expand(column, get ? pattern1 : pattern2, &args);
fprintf(gpreGlob.out_file, "\n");
}
//____________________________________________________________
//
// Generate the code to do a get segment.
//
static void gen_get_segment( const act* action)
{
const blb* blob;
TEXT buffer[128];
if (action->act_flags & ACT_sql)
blob = (blb*) action->act_request->req_blobs;
else
blob = (blb*) action->act_object;
strcpy(buffer, GET_SEG_CALL_TEMPLATE); // Copy seems useless instead of using constant directly.
sprintf(output_buffer,
buffer,
names[COLUMN],
ISC_GET_SEGMENT,
names[isc_status_vector_pos],
names[isc_a_pos], blob->blb_ident,
names[isc_a_pos], blob->blb_len_ident,
BY_VALUE, blob->blb_seg_length, END_VALUE,
BY_REF, names[isc_a_pos], blob->blb_buff_ident, names[isc_status_pos]);
COB_print_buffer(output_buffer, true);
if (action->act_flags & ACT_sql)
{
const ref* into = action->act_object;
set_sqlcode(action);
printa(names[COLUMN], false, "IF SQLCODE = 0 OR SQLCODE = 101 THEN ");
printa(names[COLUMN], false, "MOVE %s%d TO %s",
names[isc_a_pos], blob->blb_buff_ident, into->ref_value);
if (into->ref_null_value)
{
printa(names[COLUMN], false, "MOVE %s%d TO %s",
names[isc_a_pos], blob->blb_len_ident, into->ref_null_value);
}
printa(names[COLUMN], false, "END-IF");
}
}
//____________________________________________________________
//
// Generate text to compile and start a SQL mass update.
//
//
static void gen_loop( const act* action)
{
gen_s_start(action);
const gpre_req* request = action->act_request;
printa(names[COLUMN], false, "IF SQLCODE = 0 THEN");
const gpre_port* port = request->req_primary;
gen_receive(action, port);
TEXT name[MAX_REF_SIZE];
gen_name(name, port->por_references, true);
printa(names[COLUMN], false, "IF SQLCODE = 0 AND %s = 0 THEN ", name);
printa(names[COLUMN], false, "MOVE 100 TO SQLCODE");
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
}
//____________________________________________________________
//
// Generate a name for a reference. Name is constructed from
// port and parameter idents.
//
static TEXT* gen_name(TEXT* const string, const ref* reference, bool as_blob)
{
if (reference->ref_field->fld_array_info && !as_blob)
{
fb_utils::snprintf(string, MAX_REF_SIZE, "%s%d", names[isc_a_pos],
reference->ref_field->fld_array_info->ary_ident);
}
else
fb_utils::snprintf(string, MAX_REF_SIZE, "%s%d", names[isc_b_pos], reference->ref_ident);
return string;
}
//____________________________________________________________
//
// Generate a block to handle errors.
//
static void gen_on_error() // const act* action)
{
printa(names[COLUMN], false, "IF %s (2) NOT = 0 THEN", names[isc_status_pos]);
fprintf(gpreGlob.out_file, names[COLUMN]);
}
//____________________________________________________________
//
// Generate code for an EXECUTE PROCEDURE.
//
static void gen_procedure( const act* action)
{
const gpre_req* request = action->act_request;
const gpre_port* in_port = request->req_vport;
const gpre_port* out_port = request->req_primary;
PAT args;
args.pat_database = request->req_database;
args.pat_request = action->act_request;
args.pat_vector1 = status_vector(action);
args.pat_request = request;
args.pat_port = in_port;
args.pat_port2 = out_port;
const TEXT* pattern;
if (in_port && in_port->por_length)
{
pattern =
"CALL \"isc_transact_request\" USING %V1, %RF%DH%RE, %RF%RT%RE, %VF%RS%VE, %RF%RI%RE, %VF%PL%VE, %RF%PI%RE, %VF%QL%VE, %RF%QI%RE\n";
}
else
{
pattern =
"CALL \"isc_transact_request\" USING %V1, %RF%DH%RE, %RF%RT%RE, %VF%RS%VE, %RI, %VF0%VE, 0, %VF%QL%VE, %RF%QI%RE\n";
}
// Get database attach and transaction started
if (gpreGlob.sw_auto)
t_start_auto(0, status_vector(action), action, true);
// Move in input values
asgn_from(action, request->req_values);
// Execute the procedure
const USHORT column = strlen(names[COLUMN]);
PATTERN_expand(column, pattern, &args);
set_sqlcode(action);
printa(names[COLUMN], false, "IF SQLCODE = 0 THEN");
// Move out output values
asgn_to_proc(request->req_references);
printa(names[COLUMN], false, "END-IF");
}
//____________________________________________________________
//
// Generate the code to do a put segment.
//
static void gen_put_segment( const act* action)
{
const blb* blob;
if (action->act_flags & ACT_sql)
{
blob = (blb*) action->act_request->req_blobs;
const ref* from = action->act_object;
printa(names[COLUMN], false, "MOVE %s TO %s%d",
from->ref_value, names[isc_a_pos], blob->blb_buff_ident);
printa(names[COLUMN], false, "MOVE %s TO %s%d",
from->ref_null_value, names[isc_a_pos], blob->blb_len_ident);
}
else
blob = (blb*) action->act_object;
TEXT buffer[128];
strcpy(buffer, PUT_SEG_CALL_TEMPLATE);
sprintf(output_buffer,
buffer,
names[COLUMN],
ISC_PUT_SEGMENT,
status_vector(action),
BY_REF, names[isc_a_pos], blob->blb_ident,
BY_VALUE, names[isc_a_pos], blob->blb_len_ident, END_VALUE,
BY_REF, names[isc_a_pos], blob->blb_buff_ident, names[isc_status_pos]);
COB_print_buffer(output_buffer, true);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate BLR in raw, numeric form. Ughly but dense.
//
static void gen_raw(const UCHAR* blr, req_t request_type, int request_length, int ident)
{
union {
UCHAR bytewise_blr[4];
ULONG longword_blr;
} blr_hunk;
int length = 1;
int blr_length = request_length;
TEXT s[256];
while (blr_length)
{
s[0] = 0;
blr_hunk.longword_blr = 0;
for (UCHAR* c = blr_hunk.bytewise_blr; c < blr_hunk.bytewise_blr + sizeof(SLONG); c++)
{
if (--blr_length)
*c = *blr++;
else
{
switch (request_type)
{
case REQ_slice:
*c = isc_sdl_eoc;
break;
case REQ_ddl:
case REQ_create_database:
*c = *blr++;
break;
default:
*c = blr_eoc;
}
break;
}
}
strcat(s, names[COLUMN]);
strcat(s, RAW_BLR_TEMPLATE);
strcat(s, "\n");
sprintf(output_buffer, s, names[isc_a_pos], ident, names[UNDER], length++,
blr_hunk.longword_blr);
COB_print_buffer(output_buffer, false);
}
}
//____________________________________________________________
//
// Generate substitution text for READY
// This becomes baroque for mpexl where we
// must generate a variable if the user gives us
// a string literal. mpexl cobol doesn't take
// string literals as CALL parameters.
//
static void gen_ready( const act* action)
{
TEXT dbname[96];
const TEXT* vector = status_vector(action);
for (const rdy* ready = (rdy*) action->act_object; ready; ready = ready->rdy_next)
{
const gpre_dbb* db = ready->rdy_database;
const gpre_dbb* dbisc = (gpre_dbb*) db->dbb_name->sym_object;
USHORT namelength;
const TEXT* filename = ready->rdy_filename;
if (!filename)
{
filename = db->dbb_runtime;
if (filename)
{
namelength = strlen(filename);
sprintf(dbname, "%s%ddb", names[isc_b_pos], dbisc->dbb_id);
filename = dbname;
}
else
namelength = 0;
}
else
namelength = strlen(filename);
// string literal or user defined variable?
if (ready->rdy_id)
{
sprintf(dbname, "%s%ddb", names[isc_b_pos], ready->rdy_id);
filename = dbname;
namelength -= 2;
}
else
namelength = 0;
make_ready(db, filename, vector, ready->rdy_request, namelength);
set_sqlcode(action);
}
fprintf(gpreGlob.out_file, names[COLUMN]);
}
//____________________________________________________________
//
// Generate substitution text for RELEASE_REQUESTS
// For active databases, call isc_release_request.
// for all others, just zero the handle. For the
// release request calls, ignore error returns, which
// are likely if the request was compiled on a database
// which has been released and re-readied. If there is
// a serious error, it will be caught on the next statement.
//
static void gen_release( const act* action)
{
const gpre_dbb* exp_db = (gpre_dbb*) action->act_object;
for (const gpre_req* request = gpreGlob.requests; request; request = request->req_next)
{
const gpre_dbb* db = request->req_database;
if (exp_db && db != exp_db)
continue;
if (!(request->req_flags & REQ_exp_hand))
{
printa(names[COLUMN], false, "IF %s = 0 THEN", db->dbb_name->sym_string);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s",
ISC_RELEASE_REQUEST, status_vector(action), BY_REF, request->req_handle);
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "MOVE 0 to %s", request->req_handle);
}
}
}
//____________________________________________________________
//
// Generate a send or receive call for a port.
//
static void gen_receive( const act* action, const gpre_port* port)
{
const gpre_req* request = action->act_request;
sprintf(output_buffer, "%sCALL \"%s\" USING %s, %s%s, %s%d%s, %s%d%s, %s%s%d, %s%s%s\n",
names[COLUMN],
ISC_RECEIVE,
status_vector(action),
BY_REF, request->req_handle,
BY_VALUE, port->por_msg_number, END_VALUE,
BY_VALUE, port->por_length, END_VALUE,
BY_REF, names[isc_a_pos], port->por_ident,
BY_VALUE, request->req_request_level, END_VALUE);
COB_print_buffer(output_buffer, true);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate definitions associated with a single request.
// Requests are generated as raw BLR in longword chunks
// because COBOL is a miserable excuse for a language
// and doesn't allow byte value assignments to character
// fields.
//
static void gen_request( gpre_req* request)
{
if (!(request->req_flags & (REQ_exp_hand | REQ_sql_blob_open | REQ_sql_blob_create)) &&
request->req_type != REQ_slice && request->req_type != REQ_procedure)
{
printa(names[COLUMN_0], false, "01 %s PIC S9(9) USAGE COMP VALUE IS 0.", request->req_handle);
}
if (request->req_type == REQ_ready)
printa(names[COLUMN_0], false, "01 %s%dL PIC S9(4) USAGE %s VALUE IS %d.",
names[isc_a_pos], request->req_ident, COMP_VALUE, request->req_length);
// check the case where we need to extend the dpb dynamically at runtime,
// in which case we need dpb length and a pointer to be defined even if
//there is no static dpb defined
if (request->req_flags & REQ_extend_dpb)
{
printa(names[COLUMN_0], false, "01 %s%dP PIC S9(9) USAGE COMP-5 VALUE IS 0.",
names[isc_a_pos], request->req_ident);
}
if (request->req_flags & (REQ_sql_blob_open | REQ_sql_blob_create))
printa(names[COLUMN_0], false, "01 %s%dS PIC S9(9) USAGE COMP VALUE IS 0.",
names[isc_a_pos],
request->req_ident);
// generate the request as BLR long words
if (request->req_length)
{
if (request->req_flags & REQ_sql_cursor)
printa(names[COLUMN_0], false, "01 %s%dS PIC S9(9) USAGE COMP VALUE IS 0.",
names[isc_a_pos], request->req_ident);
#ifdef SCROLLABLE_CURSORS
if (request->req_flags & REQ_scroll)
printa(names[COLUMN_0], false, "01 %s%dDI PIC S9(4) USAGE COMP VALUE IS 0.",
names[isc_a_pos], request->req_ident);
#endif
printa(names[COLUMN_0], false, "01 %s%d.", names[isc_a_pos], request->req_ident);
gen_raw(request->req_blr, request->req_type, request->req_length, request->req_ident);
const char* string_type;
if (!gpreGlob.sw_raw)
{
printa(names[COMMENT], false, " ");
printa(names[COMMENT], false, "FORMATTED REQUEST BLR FOR %s%d = ",
names[isc_a_pos], request->req_ident);
switch (request->req_type)
{
case REQ_create_database:
case REQ_ready:
string_type = "DPB";
if (PRETTY_print_cdb(request->req_blr, gen_blr, 0, 0))
CPR_error("internal error during parameter generation");
break;
case REQ_ddl:
string_type = "DYN";
if (PRETTY_print_dyn(request->req_blr, gen_blr, 0, 0))
CPR_error("internal error during dynamic DDL generation");
break;
case REQ_slice:
string_type = "SDL";
if (PRETTY_print_sdl(request->req_blr, gen_blr, 0, 0))
CPR_error("internal error during SDL generation");
break;
default:
string_type = "BLR";
if (fb_print_blr(request->req_blr, request->req_length, gen_blr, 0, 0))
CPR_error("internal error during BLR generation");
}
}
else
{
switch (request->req_type)
{
case REQ_create_database:
case REQ_ready:
string_type = "DPB";
break;
case REQ_ddl:
string_type = "DYN";
break;
case REQ_slice:
string_type = "SDL";
break;
default:
string_type = "BLR";
}
}
printa(names[COMMENT], false, " ");
printa(names[COMMENT], false, "END OF %s STRING FOR REQUEST %s%d\n",
string_type, names[isc_a_pos], request->req_ident);
}
// Print out slice description language if there are arrays associated with request
for (gpre_port* port = request->req_ports; port; port = port->por_next)
for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
{
if (reference->ref_sdl)
{
printa(names[COLUMN_0], false, "01 %s%d.", names[isc_a_pos], reference->ref_sdl_ident);
gen_raw(reference->ref_sdl, REQ_slice, reference->ref_sdl_length,
reference->ref_sdl_ident);
if (!gpreGlob.sw_raw)
if (PRETTY_print_sdl(reference->ref_sdl, gen_blr, 0, 0))
CPR_error("internal error during SDL generation");
printa(names[COMMENT], false, " ");
printa(names[COMMENT], false, "END OF SDL STRING FOR %s%d */\n",
names[isc_a_pos], reference->ref_sdl_ident);
}
}
// Print out any blob parameter blocks required
for (const blb* blob = request->req_blobs; blob; blob = blob->blb_next)
if (blob->blb_const_from_type || blob->blb_const_to_type)
{
printa(names[COLUMN_0], false, "01 %s%d.", names[isc_a_pos], blob->blb_bpb_ident);
gen_raw(blob->blb_bpb, request->req_type, blob->blb_bpb_length, (int) (IPTR) request);
printa(names[COMMENT], false, " ");
}
// If this is a GET_SLICE/PUT_slice, allocate some variables
if (request->req_type == REQ_slice)
{
printa(names[COLUMN_0], false, "01 %s%dv.", names[isc_b_pos], request->req_ident);
printa(names[COLUMN], false, " 03 %s%dv_3 PIC S9(9) USAGE COMP OCCURS %d TIMES.",
names[isc_b_pos], request->req_ident, MAX(1, request->req_slice->slc_parameters));
printa(names[COLUMN_0], false, "01 %s%ds PIC S9(9) USAGE COMP.",
names[isc_b_pos], request->req_ident);
}
}
//____________________________________________________________
//
// Generate substitution text for END_STREAM.
//
static void gen_s_end( const act* action)
{
const gpre_req* request = action->act_request;
if (action->act_type == ACT_close)
gen_cursor_close(action, request);
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%s%s",
ISC_UNWIND_REQUEST,
status_vector(action),
BY_REF, request->req_handle,
BY_VALUE, request->req_request_level, END_VALUE);
if (action->act_type == ACT_close)
{
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
}
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate substitution text for FETCH.
//
static void gen_s_fetch( const act* action)
{
const gpre_req* request = action->act_request;
if (request->req_sync)
gen_send(action, request->req_sync);
gen_receive(action, request->req_primary);
}
//____________________________________________________________
//
// Generate text to compile and start a stream. This is
// used both by START_STREAM and FOR
//
static void gen_s_start( const act* action)
{
const gpre_req* request = action->act_request;
gen_compile(action);
const gpre_port* port = request->req_vport;
if (port)
asgn_from(action, port->por_references);
if (action->act_type == ACT_open)
gen_cursor_open(action, request);
// Do not call "gen_start" in case if "gen_compile" failed
if (action->act_error || (action->act_flags & ACT_sql))
{
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "IF %s NOT = 0 AND %s NOT = 0 THEN",
request_trans(action, request), request->req_handle);
else
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", request->req_handle);
}
gen_start(action, port);
if (action->act_error || (action->act_flags & ACT_sql))
printa(names[COLUMN], false, "END-IF");
if (action->act_type == ACT_open)
{
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
if (gpreGlob.sw_auto)
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
}
//____________________________________________________________
//
// Generate a send call for a port.
//
static void gen_send( const act* action, const gpre_port* port)
{
const gpre_req* request = action->act_request;
sprintf(output_buffer, "%sCALL \"%s\" USING %s, %s%s, %s%d%s, %s%d%s, %s%s%d, %s%s%s\n",
names[COLUMN],
ISC_SEND,
status_vector(action),
BY_REF, request->req_handle,
BY_VALUE, port->por_msg_number, END_VALUE,
BY_VALUE, port->por_length, END_VALUE,
BY_REF, names[isc_a_pos], port->por_ident,
BY_VALUE, request->req_request_level, END_VALUE);
COB_print_buffer(output_buffer, true);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate support for get/put slice statement.
//
static void gen_slice( const act* action)
{
const TEXT *pattern1 =
"CALL \"%S7\" USING %V1, %RF%DH%RE, %RF%RT%RE, %RF%FR%RE, %VF%N1%VE, %RF%I1%RE, %VF%N2%VE, %RF%I1v%RE, %VF%I1s%VE, %RF%S5%RE, %RF%S6%RE";
const TEXT *pattern2 =
"CALL \"%S7\" USING %V1, %RF%DH%RE, %RF%RT%RE, %RF%FR%RE, %VF%N1%VE, %RF%I1%RE, %VF%N2%VE, %RF%I1v%RE, %VF%I1s%VE, %RF%S5%RE";
const USHORT column = strlen(names[COLUMN]);
const gpre_req* request = action->act_request;
const slc* slice = (slc*) action->act_object;
const gpre_req* parent_request = slice->slc_parent_request;
// Compute array size
fprintf(gpreGlob.out_file, " COMPUTE %s%ds = %d",
names[isc_b_pos], request->req_ident, slice->slc_field->fld_array->fld_length);
const slc::slc_repeat *tail, *end;
for (tail = slice->slc_rpt, end = tail + slice->slc_dimensions; tail < end; ++tail)
{
if (tail->slc_upper != tail->slc_lower)
{
const ref* lower = (ref*) tail->slc_lower->nod_arg[0];
const ref* upper = (ref*) tail->slc_upper->nod_arg[0];
if (lower->ref_value)
fprintf(gpreGlob.out_file, " * ( %s - %s + 1)", upper->ref_value, lower->ref_value);
else
fprintf(gpreGlob.out_file, " * ( %s + 1)", upper->ref_value);
}
}
fprintf(gpreGlob.out_file, "\n");
// Make assignments to variable vector
const ref* reference;
for (reference = request->req_values; reference; reference = reference->ref_next)
{
printa(names[COLUMN], false, "MOVE %s TO %s%dv (%d)",
reference->ref_value, names[isc_a_pos],
request->req_ident, reference->ref_id);
}
PAT args;
args.pat_reference = slice->slc_field_ref;
args.pat_request = parent_request; // blob id request
args.pat_vector1 = status_vector(action); // status vector
args.pat_database = parent_request->req_database; // database handle
args.pat_string1 = action->act_request->req_trans; // transaction handle
args.pat_value1 = request->req_length; // slice descr. length
args.pat_ident1 = request->req_ident; // request name
args.pat_value2 = slice->slc_parameters * sizeof(SLONG); // parameter length
reference = (ref*) slice->slc_array->nod_arg[0];
args.pat_string5 = reference->ref_value; // array name
args.pat_string6 = names[ISC_ARRAY_LENGTH];
args.pat_string7 = (action->act_type == ACT_get_slice) ? ISC_GET_SLICE : ISC_PUT_SLICE;
PATTERN_expand(column, (action->act_type == ACT_get_slice) ? pattern1 : pattern2, &args);
}
//____________________________________________________________
//
// Substitute for a segment, segment length, or blob handle.
//
static void gen_segment( const act* action)
{
const blb* blob = (blb*) action->act_object;
fprintf(gpreGlob.out_file, "%s%d",
names[isc_a_pos],
(action->act_type == ACT_segment) ? blob->blb_buff_ident :
(action->act_type == ACT_segment_length) ? blob->blb_len_ident : blob->blb_ident);
}
//____________________________________________________________
//
//
static void gen_select( const act* action)
{
TEXT name[MAX_REF_SIZE];
const gpre_req* request = action->act_request;
const gpre_port* port = request->req_primary;
gen_name(name, request->req_eof, true);
gen_s_start(action);
// BUG8321: Do not call "receive" in case if SQLCODE is not equal 0
printa(names[COLUMN], false, "IF SQLCODE = 0 THEN");
gen_receive(action, port);
printa(names[COLUMN], false, "IF %s NOT = 0 THEN", name);
gpre_nod* var_list = (gpre_nod*) action->act_object;
if (var_list)
for (int i = 0; i < var_list->nod_count; i++) {
asgn_to(action, (ref*) var_list->nod_arg[i]);
}
printa(names[COLUMN], false, "ELSE");
printa(names[COLUMN], false, "MOVE 100 TO SQLCODE");
printa(names[COLUMN], false, "END-IF");
printa(names[COLUMN], false, "END-IF");
}
//____________________________________________________________
//
// Generate either a START or START_AND_SEND depending
// on whether or a not a port is present.
//
static void gen_start( const act* action, const gpre_port* port)
{
const gpre_req* request = action->act_request;
const TEXT* vector = status_vector(action);
if (port)
{
for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
{
if (reference->ref_field->fld_array_info)
gen_get_or_put_slice(action, reference, false);
}
sprintf(output_buffer, "%sCALL \"%s\" USING %s, %s%s, %s%s, %s%d%s, %s%d%s, %s%s%d, %s%s%s\n",
names[COLUMN],
ISC_START_AND_SEND,
vector,
BY_REF, request->req_handle,
BY_REF, request_trans(action, request),
BY_VALUE, port->por_msg_number, END_VALUE,
BY_VALUE, port->por_length, END_VALUE,
BY_REF, names[isc_a_pos], port->por_ident,
BY_VALUE, request->req_request_level, END_VALUE);
}
else
sprintf(output_buffer, "%sCALL \"%s\" USING %s, %s%s, %s%s, %s%s%s\n",
names[COLUMN],
ISC_START_REQUEST,
vector,
BY_REF, request->req_handle,
BY_REF, request_trans(action, request),
BY_VALUE, request->req_request_level, END_VALUE);
COB_print_buffer(output_buffer, true);
set_sqlcode(action);
}
//____________________________________________________________
//
// Generate text for STORE statement. This includes the compile
// call and any variable initialization required.
//
static void gen_store( const act* action)
{
const gpre_req* request = action->act_request;
gen_compile(action);
// Initialize any blob fields
TEXT name[MAX_REF_SIZE];
const gpre_port* port = request->req_primary;
for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
{
const gpre_fld* field = reference->ref_field;
if (field->fld_flags & FLD_blob)
{
printa(names[COLUMN], true, "CALL \"isc_qtoq\" USING %s, %s",
names[isc_blob_null_pos], gen_name(name, reference, true));
}
}
}
//____________________________________________________________
//
// Generate substitution text for START_TRANSACTION.
//
static void gen_t_start( const act* action)
{
TEXT dbname[80];
// if this is a purely default transaction, just let it through
const gpre_tra* trans;
if (!action || !(trans = (gpre_tra*) action->act_object))
{
t_start_auto(0, status_vector(action), action, false);
return;
}
// build a complete statement, including tpb's. Ready db's as gpre_req.
const tpb* tpb_iterator;
if (gpreGlob.sw_auto)
for (tpb_iterator = trans->tra_tpb; tpb_iterator; tpb_iterator = tpb_iterator->tpb_tra_next)
{
const gpre_dbb* db = tpb_iterator->tpb_database;
const TEXT* filename = db->dbb_runtime;
if (filename || !(db->dbb_flags & DBB_sqlca))
{
printa(names[COLUMN], false, "IF %s = 0 THEN", db->dbb_name->sym_string);
const USHORT namelength = filename ? strlen(filename) : 0;
if (filename)
{
sprintf(dbname, "%s%ddb", names[isc_b_pos], db->dbb_id);
filename = dbname;
}
make_ready(db, filename, status_vector(action), 0, namelength);
set_sqlcode(action);
printa(names[COLUMN], false, "END-IF");
}
}
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s, %s%d%s",
ISC_START_TRANSACTION,
status_vector(action),
BY_REF, trans->tra_handle ? trans->tra_handle : names[isc_trans_pos],
BY_VALUE, trans->tra_db_count, END_VALUE);
for (tpb_iterator = trans->tra_tpb; tpb_iterator; tpb_iterator = tpb_iterator->tpb_tra_next)
{
printa(names[CONTINUE], true, ", %s%s, %s%d%s, %s%s%d",
BY_REF, tpb_iterator->tpb_database->dbb_name->sym_string,
BY_VALUE, tpb_iterator->tpb_length, END_VALUE,
BY_REF, names[isc_tpb_pos], tpb_iterator->tpb_ident);
}
set_sqlcode(action);
}
//____________________________________________________________
//
// Initialize a TPB in the output file
//
static void gen_tpb(const tpb* tpb_buffer)
{
union {
UCHAR bytewise_tpb[4];
SLONG longword_tpb;
} tpb_hunk;
// TPBs are generated as raw BLR in longword chunks
// because COBOL is a miserable excuse for a language
// and doesn't allow byte value assignments to character
// fields.
printa(names[COLUMN_0], false, "01 %s%d.", names[isc_tpb_pos], tpb_buffer->tpb_ident);
const UCHAR* text = tpb_buffer->tpb_string;
int char_len = tpb_buffer->tpb_length;
int length = 1;
while (char_len)
{
for (UCHAR* c = tpb_hunk.bytewise_tpb; c < tpb_hunk.bytewise_tpb + sizeof(SLONG); c++)
{
*c = *text++;
if (!--char_len)
break;
}
printa(names[COLUMN], false, RAW_TPB_TEMPLATE,
names[isc_tpb_pos], tpb_buffer->tpb_ident,
names[UNDER], length++, tpb_hunk.longword_tpb);
}
sprintf(output_buffer, "%sEnd of data for %s%d\n",
names[COMMENT], names[isc_tpb_pos], tpb_buffer->tpb_ident);
COB_print_buffer(output_buffer, false);
}
//____________________________________________________________
//
// Generate substitution text for COMMIT, ROLLBACK, PREPARE, and SAVE
//
static void gen_trans( const act* action)
{
const char* tranText = action->act_object ? (const TEXT*) action->act_object : names[isc_trans_pos];
switch (action->act_type)
{
case ACT_commit_retain_context:
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s",
ISC_COMMIT_RETAINING, status_vector(action), BY_REF, tranText);
break;
case ACT_rollback_retain_context:
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s",
ISC_ROLLBACK_RETAINING, status_vector(action), BY_REF, tranText);
break;
default:
printa(names[COLUMN], true, "CALL \"%s\" USING %s, %s%s",
(action->act_type == ACT_commit) ?
ISC_COMMIT_TRANSACTION : (action->act_type == ACT_rollback) ?
ISC_ROLLBACK_TRANSACTION : ISC_PREPARE_TRANSACTION,
status_vector(action), BY_REF, tranText);
}
set_sqlcode(action);
}
//____________________________________________________________
//
// Substitute for a variable reference.
//
static void gen_type( const act* action)
{
printa(names[COLUMN], true, "%ld", (IPTR) action->act_object);
}
//____________________________________________________________
//
// Generate substitution text for UPDATE ... WHERE CURRENT OF ...
//
static void gen_update( const act* action)
{
const upd* modify = (upd*) action->act_object;
const gpre_port* port = modify->upd_port;
asgn_from(action, port->por_references);
gen_send(action, port);
}
//____________________________________________________________
//
// Substitute for a variable reference.
//
static void gen_variable( const act* action)
{
TEXT s[MAX_REF_SIZE];
const ref* reference = action->act_object;
fprintf(gpreGlob.out_file, "\n%s%s", names[COLUMN], gen_name(s, reference, false));
}
//____________________________________________________________
//
// Generate tests for any WHENEVER clauses that may have been declared.
//
static void gen_whenever(const swe* label)
{
const TEXT* condition = NULL;
while (label)
{
switch (label->swe_condition)
{
case SWE_error:
condition = "SQLCODE < 0";
break;
case SWE_warning:
condition = "SQLCODE > 0 AND SQLCODE NOT = 100";
break;
case SWE_not_found:
condition = "SQLCODE = 100";
break;
default:
// condition undefined
fb_assert(false);
return;
}
fprintf(gpreGlob.out_file, "%sIF (%s) THEN GO TO %s",
names[COLUMN], condition, label->swe_label);
if (label->swe_condition == SWE_warning)
fprintf(gpreGlob.out_file, "\n%s", names[COLUMN_INDENT]);
label = label->swe_next;
fprintf(gpreGlob.out_file, " END-IF%s", label ? ".\n" : "");
}
}
//____________________________________________________________
//
// Generate a declaration of an array in the
// output file.
//
static void make_array_declaration( ref* reference)
{
gpre_fld* field = reference->ref_field;
const TEXT* name = field->fld_symbol->sym_string;
// Don't generate multiple declarations for the array. V3 Bug 569.
if (field->fld_array_info->ary_declared)
return;
field->fld_array_info->ary_declared = true;
fprintf(gpreGlob.out_file, "%s01 %s%dL.\n", names[COLUMN_0], names[isc_a_pos],
field->fld_array_info->ary_ident);
TEXT space[128];
strcpy(space, " ");
// Print out the dimension part of the declaration
const dim* dimension = field->fld_array_info->ary_dimension;
int i = 3;
for (; dimension->dim_next; dimension = dimension->dim_next, i += 2)
{
const int dimension_size = dimension->dim_upper - dimension->dim_lower + 1;
printa(space, false, "%02d %s%d%s%d OCCURS %d TIMES.",
i, names[isc_a_pos], field->fld_array_info->ary_ident,
names[UNDER], i, dimension_size);
strcat(space, " "); // Will overflow at 41 dimensions, is it relevant?
}
TEXT string1[256];
TEXT* p = string1;
const int dimension_size = dimension->dim_upper - dimension->dim_lower + 1;
sprintf(p, "%02d %s%d OCCURS %d TIMES ",
i, names[isc_a_pos], field->fld_array_info->ary_ident, dimension_size);
while (*p)
p++;
SSHORT digits, scale;
switch (field->fld_array_info->ary_dtype)
{
case dtype_short:
case dtype_long:
digits = (field->fld_array_info->ary_dtype == dtype_short) ? 4 : 9;
scale = field->fld_array->fld_scale;
strcpy(p, "PIC S");
while (*p)
p++;
if (scale >= -digits && scale <= 0)
{
if (scale > -digits)
sprintf(p, "9(%d)", digits + scale);
while (*p)
p++;
if (scale)
sprintf(p, "V9(%d)", digits - (digits + scale));
}
else if (scale > 0)
sprintf(p, "9(%d)P(%d)", digits, scale);
else
sprintf(p, "VP(%d)9(%d)", -(scale + digits), digits);
while (*p)
p++;
strcpy(p, USAGE_COMP);
strcat(p, ".");
break;
case dtype_cstring:
case dtype_text:
case dtype_varying:
sprintf(p, "PIC X(%d).", field->fld_array->fld_length);
break;
case dtype_date:
strcpy(p, "PIC S9(18)");
strcat(p, USAGE_COMP);
strcat(p, ".");
break;
case dtype_quad:
sprintf(p, "PIC S9(%d)", 18 + field->fld_array->fld_scale);
while (*p)
p++;
if (field->fld_array->fld_scale < 0)
sprintf(p, "V9(%d)", -field->fld_array->fld_scale);
else if (field->fld_array->fld_scale > 0)
sprintf(p, "P(%d)", field->fld_array->fld_scale);
while (*p)
p++;
strcpy(p, USAGE_COMP);
strcat(p, ".");
break;
case dtype_real:
strcpy(p, DCL_FLOAT);
strcat(p, ".");
break;
case dtype_double:
strcpy(p, DCL_DOUBLE);
strcat(p, ".");
break;
default:
{
char s[ERROR_LENGTH];
fb_utils::snprintf(s, sizeof(s), "datatype %d unknown for field %s",
field->fld_array_info->ary_dtype, name);
CPR_error(s);
return;
}
}
printa(space, false, string1);
}
//____________________________________________________________
//
// Turn a symbol into a varying string.
//
static void make_name(TEXT* const string, const gpre_sym* symbol)
{
make_name_formatted(string, "%s", symbol);
}
//____________________________________________________________
//
// Turn a symbol into a varying string.
//
static void make_name_formatted(TEXT* const string, const TEXT* format,
const gpre_sym* symbol)
{
fb_utils::snprintf(string, MAX_CURSOR_SIZE, format, symbol->sym_string);
for (TEXT* s = string; *s; s++)
{
if (*s == '_')
*s = '-';
}
}
//____________________________________________________________
//
// Insert a port record description in output.
//
static void make_port(const gpre_port* port)
{
SSHORT digits;
printa(names[COLUMN_0], false, "01 %s%d.", names[isc_a_pos], port->por_ident);
for (const ref* reference = port->por_references; reference; reference = reference->ref_next)
{
const gpre_fld* field = reference->ref_field;
const TEXT* name;
const gpre_sym* symbol = field->fld_symbol;
if (symbol)
name = symbol->sym_string;
else
name = "<expression>";
if (reference->ref_value && (reference->ref_flags & REF_array_elem))
field = field->fld_array;
switch (field->fld_dtype)
{
case dtype_short:
case dtype_long:
digits = (field->fld_dtype == dtype_short) ? 4 : 9;
fprintf(gpreGlob.out_file, "%s03 %s%d PIC S",
names[COLUMN], names[isc_a_pos], reference->ref_ident);
if (field->fld_scale >= -digits && field->fld_scale <= 0)
{
if (field->fld_scale > -digits)
fprintf(gpreGlob.out_file, "9(%d)", digits + field->fld_scale);
if (field->fld_scale)
fprintf(gpreGlob.out_file, "V9(%d)", digits - (digits + field->fld_scale));
}
else if (field->fld_scale > 0)
fprintf(gpreGlob.out_file, "9(%d)P(%d)", digits, field->fld_scale);
else
fprintf(gpreGlob.out_file, "VP(%d)9(%d)", -(field->fld_scale + digits), digits);
fprintf(gpreGlob.out_file, "%s.\n", USAGE_COMP);
break;
case dtype_cstring:
case dtype_text:
printa(names[COLUMN], false, "03 %s%d PIC X(%d).",
names[isc_a_pos], reference->ref_ident, field->fld_length);
break;
case dtype_date:
case dtype_quad:
case dtype_blob:
fprintf(gpreGlob.out_file, "%s03 %s%d PIC S9(",
names[COLUMN], names[isc_a_pos], reference->ref_ident);
fprintf(gpreGlob.out_file, "%d)", 18 + field->fld_scale);
if (field->fld_scale < 0)
fprintf(gpreGlob.out_file, "V9(%d)", -field->fld_scale);
else if (field->fld_scale > 0)
fprintf(gpreGlob.out_file, "P(%d)", field->fld_scale);
fprintf(gpreGlob.out_file, "%s.\n", USAGE_COMP);
break;
case dtype_real:
printa(names[COLUMN], false, "03 %s%d %s.",
names[isc_a_pos], reference->ref_ident, DCL_FLOAT);
break;
case dtype_double:
printa(names[COLUMN], false, "03 %s%d %s.",
names[isc_a_pos], reference->ref_ident, DCL_DOUBLE);
break;
default:
{
TEXT s[ERROR_LENGTH];
fb_utils::snprintf(s, sizeof(s), "datatype %d unknown for field %s, msg %d",
field->fld_dtype, name, port->por_msg_number);
CPR_error(s);
return;
}
}
}
printa(names[COLUMN], false, " ");
}
//____________________________________________________________
//
// Generate the actual ready call.
//
static void make_ready(const gpre_dbb* db, const TEXT* filename,
const TEXT* vector, const gpre_req* request, USHORT namelength)
{
TEXT s1[32], s1Tmp[32], s2[32], s2Tmp[32];
const gpre_dbb* dbisc = (gpre_dbb*) db->dbb_name->sym_object;
if (request)
{
sprintf(s1, "%s%dL", names[isc_b_pos], request->req_ident);
if (request->req_flags & REQ_extend_dpb)
sprintf(s2, "%s%dp", names[isc_b_pos], request->req_ident);
else
sprintf(s2, "%s%d", names[isc_b_pos], request->req_ident);
// if the dpb needs to be extended at runtime to include items
// in host variables, do so here; this assumes that there is
// always a request generated for runtime variables
if (request->req_flags & REQ_extend_dpb)
{
if (request->req_length)
{
sprintf(output_buffer, "%sMOVE %s%d to %s\n",
names[COLUMN], names[isc_b_pos], request->req_ident, s2);
}
if (db->dbb_r_user)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 28, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_DESC, db->dbb_r_user,
BY_VALUE, strlen(db->dbb_r_user) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
if (db->dbb_r_password)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 29, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_DESC, db->dbb_r_password,
BY_VALUE, strlen(db->dbb_r_password) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
// Process Role Name, isc_dpb_sql_role_name/60
if (db->dbb_r_sql_role)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 60, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_DESC, db->dbb_r_sql_role,
BY_VALUE, strlen(db->dbb_r_sql_role) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
if (db->dbb_r_lc_messages)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s, %s%s, BY VALUE 47, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_REF, db->dbb_r_lc_messages,
BY_VALUE, strlen(db->dbb_r_lc_messages) - 2,
END_VALUE);
COB_print_buffer(output_buffer, true);
}
if (db->dbb_r_lc_ctype)
{
sprintf(output_buffer, "%sCALL \"%s\" USING %s%s %s%s, BY VALUE 48, %s %s, %s%d%s\n",
names[COLUMN],
ISC_MODIFY_DPB,
BY_REF, s2,
BY_REF, s1,
BY_REF, db->dbb_r_lc_ctype,
BY_VALUE, strlen(db->dbb_r_lc_ctype) - 2, END_VALUE);
COB_print_buffer(output_buffer, true);
}
}
if (request->req_flags & REQ_extend_dpb)
{
sprintf(s1Tmp, "%s%s%s", BY_VALUE, s1, END_VALUE);
sprintf(s2Tmp, "%s%s%s", BY_VALUE, s2, END_VALUE);
}
else
{
sprintf(s2Tmp, "%s%s", BY_REF, s2);
sprintf(s1Tmp, "%s%d%s", BY_VALUE, request->req_length, END_VALUE);
}
}
TEXT dbname[128];
if (!filename)
{
sprintf(dbname, "%s%ddb", names[isc_b_pos], dbisc->dbb_id);
filename = dbname;
namelength = strlen(db->dbb_filename);
}
sprintf(output_buffer, "%sCALL \"%s\" USING %s, %s%d%s, %s %s, %s%s, %s, %s\n",
names[COLUMN],
ISC_ATTACH_DATABASE,
vector,
BY_VALUE, namelength, END_VALUE,
BY_REF, filename,
BY_REF, db->dbb_name->sym_string,
request ? s1Tmp : OMITTED, request ? s2Tmp : OMITTED);
COB_print_buffer(output_buffer, true);
// if the dpb was extended, free it here
if (request && request->req_flags & REQ_extend_dpb)
{
if (request->req_length)
{
sprintf(output_buffer, "if (%s != %s%d)", s2, names[isc_b_pos], request->req_ident);
COB_print_buffer(output_buffer, true);
}
sprintf(output_buffer, "%sCALL \"%s\" USING %s\n", names[COLUMN], ISC_FREE, s2Tmp);
COB_print_buffer(output_buffer, true);
// reset the length of the dpb
sprintf(output_buffer, "%sMOVE %d to %s\n", names[COLUMN], request->req_length, s1);
COB_print_buffer(output_buffer, true);
}
}
//____________________________________________________________
//
// Print a fixed string at a particular COLUMN.
//
static void printa(const TEXT* column, bool call, const TEXT* string, ...)
{
va_list ptr;
TEXT s[256];
va_start(ptr, string);
strcpy(s, column);
strcat(s, string);
strcat(s, "\n");
vsprintf(output_buffer, s, ptr);
va_end(ptr);
COB_print_buffer(output_buffer, call);
}
#ifdef NOT_USED_OR_REPLACED
//____________________________________________________________
//
// Print a fixed string at a particular column.
//
static void printb(const TEXT* string, ...)
{
va_list ptr;
va_start(ptr, string);
vfprintf(gpreGlob.out_file, string, ptr);
va_end(ptr);
}
#endif
//____________________________________________________________
//
// Generate the appropriate transaction handle.
//
static const TEXT* request_trans( const act* action, const gpre_req* request)
{
if (action->act_type == ACT_open)
{
const TEXT* trname = ((open_cursor*) action->act_object)->opn_trans;
if (!trname)
trname = names[isc_trans_pos];
return trname;
}
return request ? request->req_trans : names[isc_trans_pos];
}
//____________________________________________________________
//
// generate a CALL to the appropriate SQLCODE routine.
// Note that not all COBOLs have the concept of a function.
static void set_sqlcode( const act* action)
{
TEXT buffer[128];
if (action && action->act_flags & ACT_sql)
{
strcpy(buffer, SQLCODE_CALL_TEMPLATE);
printa(names[COLUMN], true, buffer, ISC_SQLCODE_CALL, names[isc_status_vector_pos]);
}
}
//____________________________________________________________
//
// Generate the appropriate status vector parameter for a gds
// call depending on where or not the action has an error clause.
//
static const TEXT* status_vector( const act* action)
{
if (action && (action->act_error || (action->act_flags & ACT_sql)))
return names[isc_status_vector_pos];
return OMITTED;
}
//____________________________________________________________
//
// Generate substitution text for START_TRANSACTION,
// when it's being generated automatically by a compile
// call.
//
static void t_start_auto(const gpre_req* request,
const TEXT* vector,
const act* action,
bool test)
{
TEXT dbname[80], buffer[256], temp[MAX_CURSOR_SIZE + 10];
const TEXT* trname = request_trans(action, request);
// find out whether we're using a status vector or not
const bool stat = !strcmp(vector, names[isc_status_vector_pos]);
// this is a default transaction, make sure all databases are ready
const gpre_dbb* db;
int count;
if (gpreGlob.sw_auto)
{
buffer[0] = 0;
for (count = 0, db = gpreGlob.isc_databases; db; db = db->dbb_next, count++)
{
const TEXT* filename = db->dbb_runtime;
if (filename || !(db->dbb_flags & DBB_sqlca))
{
fprintf(gpreGlob.out_file, "%sIF %s = 0", names[COLUMN], db->dbb_name->sym_string);
if (stat && buffer[0])
fprintf(gpreGlob.out_file, " AND %s(2) = 0", names[isc_status_pos]);
fprintf(gpreGlob.out_file, " THEN\n");
const USHORT namelength = filename ? strlen(filename) : 0;
if (filename)
{
sprintf(dbname, "%s%ddb", names[isc_b_pos], db->dbb_id);
filename = dbname;
}
make_ready(db, filename, vector, 0, namelength);
printa(names[COLUMN], false, "END-IF");
if (buffer[0])
strcat(buffer, ") AND (");
fb_utils::snprintf(temp, sizeof(temp), "%s NOT = 0", db->dbb_name->sym_string);
strcat(buffer, temp);
}
}
fb_assert(strlen(buffer) < sizeof(buffer));
if (test)
{
if (buffer[0])
printa(names[COLUMN], false, "IF (%s) AND %s = 0 THEN", buffer, trname);
else
printa(names[COLUMN], false, "IF %s = 0 THEN", trname);
}
else if (buffer[0])
printa(names[COLUMN], false, "IF (%s) THEN", buffer);
}
else
for (count = 0, db = gpreGlob.isc_databases; db; db = db->dbb_next, count++);
const TEXT* col = stat ? names[COLUMN_INDENT] : names[COLUMN];
printa(col, true, "CALL \"%s\" USING %s, %s%s, %s%d%s",
ISC_START_TRANSACTION, vector, BY_REF, trname,
BY_VALUE, count, END_VALUE);
for (db = gpreGlob.isc_databases; db; db = db->dbb_next)
{
printa(names[CONTINUE], true, ", %s%s, %s, %s",
BY_REF, db->dbb_name->sym_string, OMITTED, OMITTED);
}
if (gpreGlob.sw_auto && (test || buffer[0]))
printa(names[COLUMN], false, "END-IF");
set_sqlcode(action);
}
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