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| 1 /* | |
| 2 ** 2009 August 17 | |
| 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 ** The code in this file is used for testing SQLite. It is not part of | |
| 14 ** the source code used in production systems. | |
| 15 ** | |
| 16 ** Specifically, this file tests the effect of errors while initializing | |
| 17 ** the various pluggable sub-systems from within sqlite3_initialize(). | |
| 18 ** If an error occurs in sqlite3_initialize() the following should be | |
| 19 ** true: | |
| 20 ** | |
| 21 ** 1) An error code is returned to the user, and | |
| 22 ** 2) A subsequent call to sqlite3_shutdown() calls the shutdown method | |
| 23 ** of those subsystems that were initialized, and | |
| 24 ** 3) A subsequent call to sqlite3_initialize() attempts to initialize | |
| 25 ** the remaining, uninitialized, subsystems. | |
| 26 */ | |
| 27 | |
| 28 #include "sqliteInt.h" | |
| 29 #include <string.h> | |
| 30 #include <tcl.h> | |
| 31 | |
| 32 static struct Wrapped { | |
| 33 sqlite3_pcache_methods pcache; | |
| 34 sqlite3_mem_methods mem; | |
| 35 sqlite3_mutex_methods mutex; | |
| 36 | |
| 37 int mem_init; /* True if mem subsystem is initalized */ | |
| 38 int mem_fail; /* True to fail mem subsystem inialization */ | |
| 39 int mutex_init; /* True if mutex subsystem is initalized */ | |
| 40 int mutex_fail; /* True to fail mutex subsystem inialization */ | |
| 41 int pcache_init; /* True if pcache subsystem is initalized */ | |
| 42 int pcache_fail; /* True to fail pcache subsystem inialization */ | |
| 43 } wrapped; | |
| 44 | |
| 45 static int wrMemInit(void *pAppData){ | |
| 46 int rc; | |
| 47 if( wrapped.mem_fail ){ | |
| 48 rc = SQLITE_ERROR; | |
| 49 }else{ | |
| 50 rc = wrapped.mem.xInit(wrapped.mem.pAppData); | |
| 51 } | |
| 52 if( rc==SQLITE_OK ){ | |
| 53 wrapped.mem_init = 1; | |
| 54 } | |
| 55 return rc; | |
| 56 } | |
| 57 static void wrMemShutdown(void *pAppData){ | |
| 58 wrapped.mem.xShutdown(wrapped.mem.pAppData); | |
| 59 wrapped.mem_init = 0; | |
| 60 } | |
| 61 static void *wrMemMalloc(int n) {return wrapped.mem.xMalloc(n);} | |
| 62 static void wrMemFree(void *p) {wrapped.mem.xFree(p);} | |
| 63 static void *wrMemRealloc(void *p, int n) {return wrapped.mem.xRealloc(p, n);} | |
| 64 static int wrMemSize(void *p) {return wrapped.mem.xSize(p);} | |
| 65 static int wrMemRoundup(int n) {return wrapped.mem.xRoundup(n);} | |
| 66 | |
| 67 | |
| 68 static int wrMutexInit(void){ | |
| 69 int rc; | |
| 70 if( wrapped.mutex_fail ){ | |
| 71 rc = SQLITE_ERROR; | |
| 72 }else{ | |
| 73 rc = wrapped.mutex.xMutexInit(); | |
| 74 } | |
| 75 if( rc==SQLITE_OK ){ | |
| 76 wrapped.mutex_init = 1; | |
| 77 } | |
| 78 return rc; | |
| 79 } | |
| 80 static int wrMutexEnd(void){ | |
| 81 wrapped.mutex.xMutexEnd(); | |
| 82 wrapped.mutex_init = 0; | |
| 83 return SQLITE_OK; | |
| 84 } | |
| 85 static sqlite3_mutex *wrMutexAlloc(int e){ | |
| 86 return wrapped.mutex.xMutexAlloc(e); | |
| 87 } | |
| 88 static void wrMutexFree(sqlite3_mutex *p){ | |
| 89 wrapped.mutex.xMutexFree(p); | |
| 90 } | |
| 91 static void wrMutexEnter(sqlite3_mutex *p){ | |
| 92 wrapped.mutex.xMutexEnter(p); | |
| 93 } | |
| 94 static int wrMutexTry(sqlite3_mutex *p){ | |
| 95 return wrapped.mutex.xMutexTry(p); | |
| 96 } | |
| 97 static void wrMutexLeave(sqlite3_mutex *p){ | |
| 98 wrapped.mutex.xMutexLeave(p); | |
| 99 } | |
| 100 static int wrMutexHeld(sqlite3_mutex *p){ | |
| 101 return wrapped.mutex.xMutexHeld(p); | |
| 102 } | |
| 103 static int wrMutexNotheld(sqlite3_mutex *p){ | |
| 104 return wrapped.mutex.xMutexNotheld(p); | |
| 105 } | |
| 106 | |
| 107 | |
| 108 | |
| 109 static int wrPCacheInit(void *pArg){ | |
| 110 int rc; | |
| 111 if( wrapped.pcache_fail ){ | |
| 112 rc = SQLITE_ERROR; | |
| 113 }else{ | |
| 114 rc = wrapped.pcache.xInit(wrapped.pcache.pArg); | |
| 115 } | |
| 116 if( rc==SQLITE_OK ){ | |
| 117 wrapped.pcache_init = 1; | |
| 118 } | |
| 119 return rc; | |
| 120 } | |
| 121 static void wrPCacheShutdown(void *pArg){ | |
| 122 wrapped.pcache.xShutdown(wrapped.pcache.pArg); | |
| 123 wrapped.pcache_init = 0; | |
| 124 } | |
| 125 | |
| 126 static sqlite3_pcache *wrPCacheCreate(int a, int b){ | |
| 127 return wrapped.pcache.xCreate(a, b); | |
| 128 } | |
| 129 static void wrPCacheCachesize(sqlite3_pcache *p, int n){ | |
| 130 wrapped.pcache.xCachesize(p, n); | |
| 131 } | |
| 132 static int wrPCachePagecount(sqlite3_pcache *p){ | |
| 133 return wrapped.pcache.xPagecount(p); | |
| 134 } | |
| 135 static void *wrPCacheFetch(sqlite3_pcache *p, unsigned a, int b){ | |
| 136 return wrapped.pcache.xFetch(p, a, b); | |
| 137 } | |
| 138 static void wrPCacheUnpin(sqlite3_pcache *p, void *a, int b){ | |
| 139 wrapped.pcache.xUnpin(p, a, b); | |
| 140 } | |
| 141 static void wrPCacheRekey(sqlite3_pcache *p, void *a, unsigned b, unsigned c){ | |
| 142 wrapped.pcache.xRekey(p, a, b, c); | |
| 143 } | |
| 144 static void wrPCacheTruncate(sqlite3_pcache *p, unsigned a){ | |
| 145 wrapped.pcache.xTruncate(p, a); | |
| 146 } | |
| 147 static void wrPCacheDestroy(sqlite3_pcache *p){ | |
| 148 wrapped.pcache.xDestroy(p); | |
| 149 } | |
| 150 | |
| 151 static void installInitWrappers(void){ | |
| 152 sqlite3_mutex_methods mutexmethods = { | |
| 153 wrMutexInit, wrMutexEnd, wrMutexAlloc, | |
| 154 wrMutexFree, wrMutexEnter, wrMutexTry, | |
| 155 wrMutexLeave, wrMutexHeld, wrMutexNotheld | |
| 156 }; | |
| 157 sqlite3_pcache_methods pcachemethods = { | |
| 158 0, | |
| 159 wrPCacheInit, wrPCacheShutdown, wrPCacheCreate, | |
| 160 wrPCacheCachesize, wrPCachePagecount, wrPCacheFetch, | |
| 161 wrPCacheUnpin, wrPCacheRekey, wrPCacheTruncate, | |
| 162 wrPCacheDestroy | |
| 163 }; | |
| 164 sqlite3_mem_methods memmethods = { | |
| 165 wrMemMalloc, wrMemFree, wrMemRealloc, | |
| 166 wrMemSize, wrMemRoundup, wrMemInit, | |
| 167 wrMemShutdown, | |
| 168 0 | |
| 169 }; | |
| 170 | |
| 171 memset(&wrapped, 0, sizeof(wrapped)); | |
| 172 | |
| 173 sqlite3_shutdown(); | |
| 174 sqlite3_config(SQLITE_CONFIG_GETMUTEX, &wrapped.mutex); | |
| 175 sqlite3_config(SQLITE_CONFIG_GETMALLOC, &wrapped.mem); | |
| 176 sqlite3_config(SQLITE_CONFIG_GETPCACHE, &wrapped.pcache); | |
| 177 sqlite3_config(SQLITE_CONFIG_MUTEX, &mutexmethods); | |
| 178 sqlite3_config(SQLITE_CONFIG_MALLOC, &memmethods); | |
| 179 sqlite3_config(SQLITE_CONFIG_PCACHE, &pcachemethods); | |
| 180 } | |
| 181 | |
| 182 static int init_wrapper_install( | |
| 183 ClientData clientData, /* Unused */ | |
| 184 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ | |
| 185 int objc, /* Number of arguments */ | |
| 186 Tcl_Obj *CONST objv[] /* Command arguments */ | |
| 187 ){ | |
| 188 int i; | |
| 189 installInitWrappers(); | |
| 190 for(i=1; i<objc; i++){ | |
| 191 char *z = Tcl_GetString(objv[i]); | |
| 192 if( strcmp(z, "mem")==0 ){ | |
| 193 wrapped.mem_fail = 1; | |
| 194 }else if( strcmp(z, "mutex")==0 ){ | |
| 195 wrapped.mutex_fail = 1; | |
| 196 }else if( strcmp(z, "pcache")==0 ){ | |
| 197 wrapped.pcache_fail = 1; | |
| 198 }else{ | |
| 199 Tcl_AppendResult(interp, "Unknown argument: \"", z, "\""); | |
| 200 return TCL_ERROR; | |
| 201 } | |
| 202 } | |
| 203 return TCL_OK; | |
| 204 } | |
| 205 | |
| 206 static int init_wrapper_uninstall( | |
| 207 ClientData clientData, /* Unused */ | |
| 208 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ | |
| 209 int objc, /* Number of arguments */ | |
| 210 Tcl_Obj *CONST objv[] /* Command arguments */ | |
| 211 ){ | |
| 212 if( objc!=1 ){ | |
| 213 Tcl_WrongNumArgs(interp, 1, objv, ""); | |
| 214 return TCL_ERROR; | |
| 215 } | |
| 216 | |
| 217 memset(&wrapped, 0, sizeof(&wrapped)); | |
| 218 sqlite3_shutdown(); | |
| 219 sqlite3_config(SQLITE_CONFIG_MUTEX, &wrapped.mutex); | |
| 220 sqlite3_config(SQLITE_CONFIG_MALLOC, &wrapped.mem); | |
| 221 sqlite3_config(SQLITE_CONFIG_PCACHE, &wrapped.pcache); | |
| 222 return TCL_OK; | |
| 223 } | |
| 224 | |
| 225 static int init_wrapper_clear( | |
| 226 ClientData clientData, /* Unused */ | |
| 227 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ | |
| 228 int objc, /* Number of arguments */ | |
| 229 Tcl_Obj *CONST objv[] /* Command arguments */ | |
| 230 ){ | |
| 231 if( objc!=1 ){ | |
| 232 Tcl_WrongNumArgs(interp, 1, objv, ""); | |
| 233 return TCL_ERROR; | |
| 234 } | |
| 235 | |
| 236 wrapped.mem_fail = 0; | |
| 237 wrapped.mutex_fail = 0; | |
| 238 wrapped.pcache_fail = 0; | |
| 239 return TCL_OK; | |
| 240 } | |
| 241 | |
| 242 static int init_wrapper_query( | |
| 243 ClientData clientData, /* Unused */ | |
| 244 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ | |
| 245 int objc, /* Number of arguments */ | |
| 246 Tcl_Obj *CONST objv[] /* Command arguments */ | |
| 247 ){ | |
| 248 Tcl_Obj *pRet; | |
| 249 | |
| 250 if( objc!=1 ){ | |
| 251 Tcl_WrongNumArgs(interp, 1, objv, ""); | |
| 252 return TCL_ERROR; | |
| 253 } | |
| 254 | |
| 255 pRet = Tcl_NewObj(); | |
| 256 if( wrapped.mutex_init ){ | |
| 257 Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("mutex", -1)); | |
| 258 } | |
| 259 if( wrapped.mem_init ){ | |
| 260 Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("mem", -1)); | |
| 261 } | |
| 262 if( wrapped.pcache_init ){ | |
| 263 Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("pcache", -1)); | |
| 264 } | |
| 265 | |
| 266 Tcl_SetObjResult(interp, pRet); | |
| 267 return TCL_OK; | |
| 268 } | |
| 269 | |
| 270 int Sqlitetest_init_Init(Tcl_Interp *interp){ | |
| 271 static struct { | |
| 272 char *zName; | |
| 273 Tcl_ObjCmdProc *xProc; | |
| 274 } aObjCmd[] = { | |
| 275 {"init_wrapper_install", init_wrapper_install}, | |
| 276 {"init_wrapper_query", init_wrapper_query }, | |
| 277 {"init_wrapper_uninstall", init_wrapper_uninstall}, | |
| 278 {"init_wrapper_clear", init_wrapper_clear} | |
| 279 }; | |
| 280 int i; | |
| 281 | |
| 282 for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){ | |
| 283 Tcl_CreateObjCommand(interp, aObjCmd[i].zName, aObjCmd[i].xProc, 0, 0); | |
| 284 } | |
| 285 | |
| 286 return TCL_OK; | |
| 287 } | |
| 288 | |
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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/