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141 lines
4.1 KiB
C++
141 lines
4.1 KiB
C++
/*
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* PROGRAM: JRD Access Method
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* MODULE: pio.h
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* DESCRIPTION: File system interface definitions
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*
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* 2002.10.29 Sean Leyne - Removed obsolete "Netware" port
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*
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* 2002.10.30 Sean Leyne - Removed support for obsolete "PC_PLATFORM" define
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*
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*/
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#ifndef JRD_PIO_H
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#define JRD_PIO_H
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#include "../jrd/jrd_blks.h"
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#include "../include/fb_blk.h"
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#ifdef UNIX
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class fil : public pool_alloc_rpt<SCHAR, type_fil>
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{
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public:
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struct fil *fil_next; /* Next file in database */
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ULONG fil_min_page; /* Minimum page number in file */
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ULONG fil_max_page; /* Maximum page number in file */
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USHORT fil_sequence; /* Sequence number of file */
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USHORT fil_fudge; /* Fudge factor for page relocation */
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struct plc *fil_connect; /* Connection to page server */
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int fil_desc;
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int *fil_trace; /* Trace file, if any */
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MUTX_T fil_mutex[1];
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USHORT fil_flags;
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USHORT fil_length; /* Length of expanded file name */
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SCHAR fil_string[1]; /* Expanded file name */
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};
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typedef fil *FIL;
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#endif
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#ifdef VMS
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class fil : public pool_alloc_rpt<SCHAR, type_fil>
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{
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public:
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struct fil *fil_next; /* Next file in database */
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ULONG fil_min_page; /* Minimum page number in file */
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ULONG fil_max_page; /* Maximum page number in file */
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USHORT fil_sequence; /* Sequence number of file */
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USHORT fil_fudge; /* Fudge factor for page relocation */
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struct plc *fil_connect; /* Connection to page server */
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int fil_desc;
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int fil_trace; /* Trace file, if any */
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MUTX_T fil_mutex[1];
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USHORT fil_length; /* Length of expanded file name */
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USHORT fil_fid[3]; /* File id */
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USHORT fil_did[3]; /* Directory id */
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USHORT fil_flags;
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SCHAR fil_string[1]; /* Expanded file name */
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};
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tyepdef fil *FIL;
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#endif
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#ifdef WIN_NT
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#ifdef SUPERSERVER_V2
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#define MAX_FILE_IO 32 /* Maximum "allocated" overlapped I/O events */
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#endif
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class fil : public pool_alloc_rpt<SCHAR, type_fil>
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{
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public:
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struct fil *fil_next; /* Next file in database */
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ULONG fil_min_page; /* Minimum page number in file */
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ULONG fil_max_page; /* Maximum page number in file */
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USHORT fil_sequence; /* Sequence number of file */
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USHORT fil_fudge; /* Fudge factor for page relocation */
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struct plc *fil_connect; /* Connection to page server */
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SLONG fil_desc;
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SLONG fil_force_write_desc; /* Handle of force write open */
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int *fil_trace; /* Trace file, if any */
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MUTX_T fil_mutex[1];
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#ifdef SUPERSERVER_V2
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void* fil_io_events[MAX_FILE_IO]; /* Overlapped I/O events */
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#endif
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USHORT fil_flags;
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USHORT fil_length; /* Length of expanded file name */
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SCHAR fil_string[1]; /* Expanded file name */
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};
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typedef fil *FIL;
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#endif
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#define FIL_force_write 1
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#define FIL_force_write_init 2
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/* Physical IO trace events */
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#define trace_create 1
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#define trace_open 2
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#define trace_page_size 3
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#define trace_read 4
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#define trace_write 5
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#define trace_close 6
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/* Physical I/O status block */
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typedef struct piob {
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FIL piob_file; /* File being read/written */
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SLONG piob_desc; /* File descriptor */
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SLONG piob_io_length; /* Requested I/O transfer length */
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SLONG piob_actual_length; /* Actual I/O transfer length */
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USHORT piob_wait; /* Async or synchronous wait */
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UCHAR piob_flags;
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SLONG piob_io_event[8]; /* Event to signal I/O completion */
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} *PIOB;
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#define PIOB_error 1 /* I/O error occurred */
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#define PIOB_success 2 /* I/O successfully completed */
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#define PIOB_pending 4 /* Asynchronous I/O not yet completed */
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#endif /* JRD_PIO_H */
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