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114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP HTML Embedded Scripting Language Version 3.0 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997,1998 PHP Development Team (See Credits file) |
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+----------------------------------------------------------------------+
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| This program is free software; you can redistribute it and/or modify |
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| it under the terms of one of the following licenses: |
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| |
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| A) the GNU General Public License as published by the Free Software |
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| Foundation; either version 2 of the License, or (at your option) |
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| any later version. |
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| |
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| B) the PHP License as published by the PHP Development Team and |
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| included in the distribution in the file: LICENSE |
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| |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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| |
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| You should have received a copy of both licenses referred to here. |
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| If you did not, or have any questions about PHP licensing, please |
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| contact core@php.net. |
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+----------------------------------------------------------------------+
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| Authors: |
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| |
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+----------------------------------------------------------------------+
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*/
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#include "tls.h"
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#if THREAD_SAFE
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/*This is indeed a global!*/
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DWORD TlsIndex;
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#else
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php3_globals_struct *php3_globals;
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#endif
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/* just copying from some samples, can replace this with
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standard php error messaging */
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VOID ErrorExit (LPTSTR lpszMessage)
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{
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fprintf(stderr, "%s\n", lpszMessage);
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ExitProcess(0);
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}
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/*all these functions are called from DllMain()
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in a NON thread safe version, tls_startup and
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tls_shutdown should be initiated before anything
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else. This will allocate memory for globals.
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called at dll load*/
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int tls_startup(void){
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#if THREAD_SAFE
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if ((TlsIndex=TlsAlloc())==0xFFFFFFFF){
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return 0;
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}
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#else
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php3_globals=malloc(sizeof(php3_globals));
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#endif
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return 1;
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}
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/*called at dll unload*/
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int tls_shutdown(void){
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#if THREAD_SAFE
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if (!TlsFree(TlsIndex)){
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return 0;
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}
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#else
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free(php3_globals);
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#endif
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return 1;
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}
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#if THREAD_SAFE
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/*called at start of thread*/
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int tls_create(void){
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php3_globals_struct *php3_globals;
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php3_globals = (php3_globals_struct *) LocalAlloc(LPTR, sizeof(php3_globals_struct));
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if (! TlsSetValue(TlsIndex, (void *) php3_globals))
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ErrorExit("TlsSetValue error");
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return 1;
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}
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/*called at end of thread*/
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int tls_destroy(void){
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php3_globals_struct *php3_globals;
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php3_globals = TlsGetValue(TlsIndex);
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if (php3_globals != 0)
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LocalFree((HLOCAL) php3_globals);
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return 1;
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}
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#endif
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/*
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accessing data inside a thread
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This short function shows how the global struct
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is accessed in a function. THREAD_SAFE should
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only need to be defined on windows server modules
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void thread_safe_access_of_globals(VOID)
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{
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TLS_VARS;
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if ((php3_globals == 0) && (GetLastError() != 0)) {
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ErrorExit("TlsGetValue error");
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}
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}
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*/
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