| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 ** 2004 May 22 | |
| 3 ** | |
| 4 ** The author disclaims copyright to this source code. In place of | |
| 5 ** a legal notice, here is a blessing: | |
| 6 ** | |
| 7 ** May you do good and not evil. | |
| 8 ** May you find forgiveness for yourself and forgive others. | |
| 9 ** May you share freely, never taking more than you give. | |
| 10 ** | |
| 11 ****************************************************************************** | |
| 12 ** | |
| 13 ** This file contains macros and a little bit of code that is common to | |
| 14 ** all of the platform-specific files (os_*.c) and is #included into those | |
| 15 ** files. | |
| 16 ** | |
| 17 ** This file should be #included by the os_*.c files only. It is not a | |
| 18 ** general purpose header file. | |
| 19 ** | |
| 20 ** $Id: os_common.h,v 1.38 2009/02/24 18:40:50 danielk1977 Exp $ | |
| 21 */ | |
| 22 #ifndef _OS_COMMON_H_ | |
| 23 #define _OS_COMMON_H_ | |
| 24 | |
| 25 /* | |
| 26 ** At least two bugs have slipped in because we changed the MEMORY_DEBUG | |
| 27 ** macro to SQLITE_DEBUG and some older makefiles have not yet made the | |
| 28 ** switch. The following code should catch this problem at compile-time. | |
| 29 */ | |
| 30 #ifdef MEMORY_DEBUG | |
| 31 # error "The MEMORY_DEBUG macro is obsolete. Use SQLITE_DEBUG instead." | |
| 32 #endif | |
| 33 | |
| 34 #ifdef SQLITE_DEBUG | |
| 35 int sqlite3OSTrace = 0; | |
| 36 #define OSTRACE1(X) if( sqlite3OSTrace ) sqlite3DebugPrintf(X) | |
| 37 #define OSTRACE2(X,Y) if( sqlite3OSTrace ) sqlite3DebugPrintf(X,Y) | |
| 38 #define OSTRACE3(X,Y,Z) if( sqlite3OSTrace ) sqlite3DebugPrintf(X,Y,Z) | |
| 39 #define OSTRACE4(X,Y,Z,A) if( sqlite3OSTrace ) sqlite3DebugPrintf(X,Y,Z,A) | |
| 40 #define OSTRACE5(X,Y,Z,A,B) if( sqlite3OSTrace ) sqlite3DebugPrintf(X,Y,Z,A,B) | |
| 41 #define OSTRACE6(X,Y,Z,A,B,C) \ | |
| 42 if(sqlite3OSTrace) sqlite3DebugPrintf(X,Y,Z,A,B,C) | |
| 43 #define OSTRACE7(X,Y,Z,A,B,C,D) \ | |
| 44 if(sqlite3OSTrace) sqlite3DebugPrintf(X,Y,Z,A,B,C,D) | |
| 45 #else | |
| 46 #define OSTRACE1(X) | |
| 47 #define OSTRACE2(X,Y) | |
| 48 #define OSTRACE3(X,Y,Z) | |
| 49 #define OSTRACE4(X,Y,Z,A) | |
| 50 #define OSTRACE5(X,Y,Z,A,B) | |
| 51 #define OSTRACE6(X,Y,Z,A,B,C) | |
| 52 #define OSTRACE7(X,Y,Z,A,B,C,D) | |
| 53 #endif | |
| 54 | |
| 55 /* | |
| 56 ** Macros for performance tracing. Normally turned off. Only works | |
| 57 ** on i486 hardware. | |
| 58 */ | |
| 59 #ifdef SQLITE_PERFORMANCE_TRACE | |
| 60 | |
| 61 /* | |
| 62 ** hwtime.h contains inline assembler code for implementing | |
| 63 ** high-performance timing routines. | |
| 64 */ | |
| 65 #include "hwtime.h" | |
| 66 | |
| 67 static sqlite_uint64 g_start; | |
| 68 static sqlite_uint64 g_elapsed; | |
| 69 #define TIMER_START g_start=sqlite3Hwtime() | |
| 70 #define TIMER_END g_elapsed=sqlite3Hwtime()-g_start | |
| 71 #define TIMER_ELAPSED g_elapsed | |
| 72 #else | |
| 73 #define TIMER_START | |
| 74 #define TIMER_END | |
| 75 #define TIMER_ELAPSED ((sqlite_uint64)0) | |
| 76 #endif | |
| 77 | |
| 78 /* | |
| 79 ** If we compile with the SQLITE_TEST macro set, then the following block | |
| 80 ** of code will give us the ability to simulate a disk I/O error. This | |
| 81 ** is used for testing the I/O recovery logic. | |
| 82 */ | |
| 83 #ifdef SQLITE_TEST | |
| 84 int sqlite3_io_error_hit = 0; /* Total number of I/O Errors */ | |
| 85 int sqlite3_io_error_hardhit = 0; /* Number of non-benign errors */ | |
| 86 int sqlite3_io_error_pending = 0; /* Count down to first I/O error */ | |
| 87 int sqlite3_io_error_persist = 0; /* True if I/O errors persist */ | |
| 88 int sqlite3_io_error_benign = 0; /* True if errors are benign */ | |
| 89 int sqlite3_diskfull_pending = 0; | |
| 90 int sqlite3_diskfull = 0; | |
| 91 #define SimulateIOErrorBenign(X) sqlite3_io_error_benign=(X) | |
| 92 #define SimulateIOError(CODE) \ | |
| 93 if( (sqlite3_io_error_persist && sqlite3_io_error_hit) \ | |
| 94 || sqlite3_io_error_pending-- == 1 ) \ | |
| 95 { local_ioerr(); CODE; } | |
| 96 static void local_ioerr(){ | |
| 97 IOTRACE(("IOERR\n")); | |
| 98 sqlite3_io_error_hit++; | |
| 99 if( !sqlite3_io_error_benign ) sqlite3_io_error_hardhit++; | |
| 100 } | |
| 101 #define SimulateDiskfullError(CODE) \ | |
| 102 if( sqlite3_diskfull_pending ){ \ | |
| 103 if( sqlite3_diskfull_pending == 1 ){ \ | |
| 104 local_ioerr(); \ | |
| 105 sqlite3_diskfull = 1; \ | |
| 106 sqlite3_io_error_hit = 1; \ | |
| 107 CODE; \ | |
| 108 }else{ \ | |
| 109 sqlite3_diskfull_pending--; \ | |
| 110 } \ | |
| 111 } | |
| 112 #else | |
| 113 #define SimulateIOErrorBenign(X) | |
| 114 #define SimulateIOError(A) | |
| 115 #define SimulateDiskfullError(A) | |
| 116 #endif | |
| 117 | |
| 118 /* | |
| 119 ** When testing, keep a count of the number of open files. | |
| 120 */ | |
| 121 #ifdef SQLITE_TEST | |
| 122 int sqlite3_open_file_count = 0; | |
| 123 #define OpenCounter(X) sqlite3_open_file_count+=(X) | |
| 124 #else | |
| 125 #define OpenCounter(X) | |
| 126 #endif | |
| 127 | |
| 128 #endif /* !defined(_OS_COMMON_H_) */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 3108030:
Move bundled copy of sqlite one level deeper to better separate it... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/