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firebird-mirror/src/jrd/y_handle.h

93 lines
2.3 KiB
C++

/*
* The contents of this file are subject to the Initial
* Developer's 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.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* 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 Alexander Peshkoff
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2002 Alexander Peshkoff <peshkoff@mail.ru>
* and all contributors signed below.
*
* All rights reserved.
*
* Contributor(s): ______________________________
*
*/
#ifndef JRD_Y_HANDLE_H
#define JRD_Y_HANDLE_H
/*
* These definitions placed into separate file
* to avoid multiple definition of struct why_hndl in why.cpp
* and dsql.cpp
*
*/
namespace Jrd {
class Attachment;
class jrd_tra;
class jrd_req;
}
union any_handle {
struct why_hndl* h_why;
class dsql_req* h_dsql;
Jrd::Attachment* h_dbb;
Jrd::jrd_tra* h_tra;
};
struct why_hndl
{
UCHAR type;
UCHAR flags;
USHORT implementation;
FB_API_HANDLE public_handle;
union any_handle handle;
struct why_hndl* parent;
struct why_hndl* next;
union {
struct why_hndl* requests;
struct sqlda_sup* das;
};
struct why_hndl* statements;
struct why_hndl* blobs;
FB_API_HANDLE* user_handle;
struct clean* cleanup;
TEXT* db_path;
SCHAR* db_prepare_buffer;
};
typedef why_hndl *WHY_HNDL;
typedef why_hndl *WHY_REQ;
typedef why_hndl *WHY_DBB;
typedef why_hndl *WHY_TRA;
typedef why_hndl *WHY_BLB;
typedef why_hndl *WHY_ATT;
typedef why_hndl *WHY_STMT;
typedef why_hndl *WHY_SVC;
const int HANDLE_invalid = 0;
const int HANDLE_database = 1;
const int HANDLE_transaction = 2;
const int HANDLE_request = 3;
const int HANDLE_blob = 4;
const int HANDLE_statement = 5;
const int HANDLE_service = 6;
const int HANDLE_TRANSACTION_limbo = 1;
const int HANDLE_BLOB_filter = 2; /* Blob is locally filtered */
const int HANDLE_STATEMENT_local = 4; /* Process DSQL statement locally */
const SLONG DBB_PREPARE_BUFFER_SIZE = 32768; // size of buffer used in isc_dsql_prepare call
#endif // JRD_Y_HANDLE_H