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authorSVN Migration <svn@php.net>2006-10-15 21:09:28 +0000
committerSVN Migration <svn@php.net>2006-10-15 21:09:28 +0000
commit88ec761548b66f58acc1a86cdd0fc164ca925476 (patch)
treed0af978fa00d83bb1d82c613f66477fbd6bb18aa /ext/pdo_sqlite/sqlite/src/os_common.h
parent268984b4787e797db6054313fc9ba3b9e845306e (diff)
downloadphp-git-PECL_OPENSSL.tar.gz
This commit was manufactured by cvs2svn to create branch 'PECL_OPENSSL'.PECL_OPENSSL
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-/*
-** 2004 May 22
-**
-** The author disclaims copyright to this source code. In place of
-** a legal notice, here is a blessing:
-**
-** May you do good and not evil.
-** May you find forgiveness for yourself and forgive others.
-** May you share freely, never taking more than you give.
-**
-******************************************************************************
-**
-** This file contains macros and a little bit of code that is common to
-** all of the platform-specific files (os_*.c) and is #included into those
-** files.
-**
-** This file should be #included by the os_*.c files only. It is not a
-** general purpose header file.
-*/
-
-/*
-** At least two bugs have slipped in because we changed the MEMORY_DEBUG
-** macro to SQLITE_DEBUG and some older makefiles have not yet made the
-** switch. The following code should catch this problem at compile-time.
-*/
-#ifdef MEMORY_DEBUG
-# error "The MEMORY_DEBUG macro is obsolete. Use SQLITE_DEBUG instead."
-#endif
-
-
-/*
- * When testing, this global variable stores the location of the
- * pending-byte in the database file.
- */
-#ifdef SQLITE_TEST
-unsigned int sqlite3_pending_byte = 0x40000000;
-#endif
-
-int sqlite3_os_trace = 0;
-#ifdef SQLITE_DEBUG
-static int last_page = 0;
-#define SEEK(X) last_page=(X)
-#define TRACE1(X) if( sqlite3_os_trace ) sqlite3DebugPrintf(X)
-#define TRACE2(X,Y) if( sqlite3_os_trace ) sqlite3DebugPrintf(X,Y)
-#define TRACE3(X,Y,Z) if( sqlite3_os_trace ) sqlite3DebugPrintf(X,Y,Z)
-#define TRACE4(X,Y,Z,A) if( sqlite3_os_trace ) sqlite3DebugPrintf(X,Y,Z,A)
-#define TRACE5(X,Y,Z,A,B) if( sqlite3_os_trace ) sqlite3DebugPrintf(X,Y,Z,A,B)
-#define TRACE6(X,Y,Z,A,B,C) if(sqlite3_os_trace) sqlite3DebugPrintf(X,Y,Z,A,B,C)
-#define TRACE7(X,Y,Z,A,B,C,D) \
- if(sqlite3_os_trace) sqlite3DebugPrintf(X,Y,Z,A,B,C,D)
-#else
-#define SEEK(X)
-#define TRACE1(X)
-#define TRACE2(X,Y)
-#define TRACE3(X,Y,Z)
-#define TRACE4(X,Y,Z,A)
-#define TRACE5(X,Y,Z,A,B)
-#define TRACE6(X,Y,Z,A,B,C)
-#define TRACE7(X,Y,Z,A,B,C,D)
-#endif
-
-/*
-** Macros for performance tracing. Normally turned off. Only works
-** on i486 hardware.
-*/
-#ifdef SQLITE_PERFORMANCE_TRACE
-__inline__ unsigned long long int hwtime(void){
- unsigned long long int x;
- __asm__("rdtsc\n\t"
- "mov %%edx, %%ecx\n\t"
- :"=A" (x));
- return x;
-}
-static unsigned long long int g_start;
-static unsigned int elapse;
-#define TIMER_START g_start=hwtime()
-#define TIMER_END elapse=hwtime()-g_start
-#define TIMER_ELAPSED elapse
-#else
-#define TIMER_START
-#define TIMER_END
-#define TIMER_ELAPSED 0
-#endif
-
-/*
-** If we compile with the SQLITE_TEST macro set, then the following block
-** of code will give us the ability to simulate a disk I/O error. This
-** is used for testing the I/O recovery logic.
-*/
-#ifdef SQLITE_TEST
-int sqlite3_io_error_hit = 0;
-int sqlite3_io_error_pending = 0;
-int sqlite3_diskfull_pending = 0;
-int sqlite3_diskfull = 0;
-#define SimulateIOError(A) \
- if( sqlite3_io_error_pending ) \
- if( sqlite3_io_error_pending-- == 1 ){ local_ioerr(); return A; }
-static void local_ioerr(){
- sqlite3_io_error_hit = 1; /* Really just a place to set a breakpoint */
-}
-#define SimulateDiskfullError \
- if( sqlite3_diskfull_pending ){ \
- if( sqlite3_diskfull_pending == 1 ){ \
- local_ioerr(); \
- sqlite3_diskfull = 1; \
- return SQLITE_FULL; \
- }else{ \
- sqlite3_diskfull_pending--; \
- } \
- }
-#else
-#define SimulateIOError(A)
-#define SimulateDiskfullError
-#endif
-
-/*
-** When testing, keep a count of the number of open files.
-*/
-#ifdef SQLITE_TEST
-int sqlite3_open_file_count = 0;
-#define OpenCounter(X) sqlite3_open_file_count+=(X)
-#else
-#define OpenCounter(X)
-#endif
-
-/*
-** sqlite3GenericMalloc
-** sqlite3GenericRealloc
-** sqlite3GenericOsFree
-** sqlite3GenericAllocationSize
-**
-** Implementation of the os level dynamic memory allocation interface in terms
-** of the standard malloc(), realloc() and free() found in many operating
-** systems. No rocket science here.
-**
-** There are two versions of these four functions here. The version
-** implemented here is only used if memory-management or memory-debugging is
-** enabled. This version allocates an extra 8-bytes at the beginning of each
-** block and stores the size of the allocation there.
-**
-** If neither memory-management or debugging is enabled, the second
-** set of implementations is used instead.
-*/
-#if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || defined (SQLITE_MEMDEBUG)
-void *sqlite3GenericMalloc(int n){
- char *p = (char *)malloc(n+8);
- assert(n>0);
- assert(sizeof(int)<=8);
- if( p ){
- *(int *)p = n;
- p += 8;
- }
- return (void *)p;
-}
-void *sqlite3GenericRealloc(void *p, int n){
- char *p2 = ((char *)p - 8);
- assert(n>0);
- p2 = (char*)realloc(p2, n+8);
- if( p2 ){
- *(int *)p2 = n;
- p2 += 8;
- }
- return (void *)p2;
-}
-void sqlite3GenericFree(void *p){
- assert(p);
- free((void *)((char *)p - 8));
-}
-int sqlite3GenericAllocationSize(void *p){
- return p ? *(int *)((char *)p - 8) : 0;
-}
-#else
-void *sqlite3GenericMalloc(int n){
- char *p = (char *)malloc(n);
- return (void *)p;
-}
-void *sqlite3GenericRealloc(void *p, int n){
- assert(n>0);
- p = realloc(p, n);
- return p;
-}
-void sqlite3GenericFree(void *p){
- assert(p);
- free(p);
-}
-/* Never actually used, but needed for the linker */
-int sqlite3GenericAllocationSize(void *p){ return 0; }
-#endif