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[chromium-blink-merge.git] / third_party / sqlite / sqlite-src-3080704 / src / test_init.c
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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.
11 *************************************************************************
13 ** The code in this file is used for testing SQLite. It is not part of
14 ** the source code used in production systems.
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:
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.
28 #include "sqliteInt.h"
29 #include <string.h>
30 #include <tcl.h>
32 static struct Wrapped {
33 sqlite3_pcache_methods2 pcache;
34 sqlite3_mem_methods mem;
35 sqlite3_mutex_methods mutex;
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;
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);
52 if( rc==SQLITE_OK ){
53 wrapped.mem_init = 1;
55 return rc;
57 static void wrMemShutdown(void *pAppData){
58 wrapped.mem.xShutdown(wrapped.mem.pAppData);
59 wrapped.mem_init = 0;
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);}
68 static int wrMutexInit(void){
69 int rc;
70 if( wrapped.mutex_fail ){
71 rc = SQLITE_ERROR;
72 }else{
73 rc = wrapped.mutex.xMutexInit();
75 if( rc==SQLITE_OK ){
76 wrapped.mutex_init = 1;
78 return rc;
80 static int wrMutexEnd(void){
81 wrapped.mutex.xMutexEnd();
82 wrapped.mutex_init = 0;
83 return SQLITE_OK;
85 static sqlite3_mutex *wrMutexAlloc(int e){
86 return wrapped.mutex.xMutexAlloc(e);
88 static void wrMutexFree(sqlite3_mutex *p){
89 wrapped.mutex.xMutexFree(p);
91 static void wrMutexEnter(sqlite3_mutex *p){
92 wrapped.mutex.xMutexEnter(p);
94 static int wrMutexTry(sqlite3_mutex *p){
95 return wrapped.mutex.xMutexTry(p);
97 static void wrMutexLeave(sqlite3_mutex *p){
98 wrapped.mutex.xMutexLeave(p);
100 static int wrMutexHeld(sqlite3_mutex *p){
101 return wrapped.mutex.xMutexHeld(p);
103 static int wrMutexNotheld(sqlite3_mutex *p){
104 return wrapped.mutex.xMutexNotheld(p);
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);
116 if( rc==SQLITE_OK ){
117 wrapped.pcache_init = 1;
119 return rc;
121 static void wrPCacheShutdown(void *pArg){
122 wrapped.pcache.xShutdown(wrapped.pcache.pArg);
123 wrapped.pcache_init = 0;
126 static sqlite3_pcache *wrPCacheCreate(int a, int b, int c){
127 return wrapped.pcache.xCreate(a, b, c);
129 static void wrPCacheCachesize(sqlite3_pcache *p, int n){
130 wrapped.pcache.xCachesize(p, n);
132 static int wrPCachePagecount(sqlite3_pcache *p){
133 return wrapped.pcache.xPagecount(p);
135 static sqlite3_pcache_page *wrPCacheFetch(sqlite3_pcache *p, unsigned a, int b){
136 return wrapped.pcache.xFetch(p, a, b);
138 static void wrPCacheUnpin(sqlite3_pcache *p, sqlite3_pcache_page *a, int b){
139 wrapped.pcache.xUnpin(p, a, b);
141 static void wrPCacheRekey(
142 sqlite3_pcache *p,
143 sqlite3_pcache_page *a,
144 unsigned b,
145 unsigned c
147 wrapped.pcache.xRekey(p, a, b, c);
149 static void wrPCacheTruncate(sqlite3_pcache *p, unsigned a){
150 wrapped.pcache.xTruncate(p, a);
152 static void wrPCacheDestroy(sqlite3_pcache *p){
153 wrapped.pcache.xDestroy(p);
156 static void installInitWrappers(void){
157 sqlite3_mutex_methods mutexmethods = {
158 wrMutexInit, wrMutexEnd, wrMutexAlloc,
159 wrMutexFree, wrMutexEnter, wrMutexTry,
160 wrMutexLeave, wrMutexHeld, wrMutexNotheld
162 sqlite3_pcache_methods2 pcachemethods = {
163 1, 0,
164 wrPCacheInit, wrPCacheShutdown, wrPCacheCreate,
165 wrPCacheCachesize, wrPCachePagecount, wrPCacheFetch,
166 wrPCacheUnpin, wrPCacheRekey, wrPCacheTruncate,
167 wrPCacheDestroy
169 sqlite3_mem_methods memmethods = {
170 wrMemMalloc, wrMemFree, wrMemRealloc,
171 wrMemSize, wrMemRoundup, wrMemInit,
172 wrMemShutdown,
176 memset(&wrapped, 0, sizeof(wrapped));
178 sqlite3_shutdown();
179 sqlite3_config(SQLITE_CONFIG_GETMUTEX, &wrapped.mutex);
180 sqlite3_config(SQLITE_CONFIG_GETMALLOC, &wrapped.mem);
181 sqlite3_config(SQLITE_CONFIG_GETPCACHE2, &wrapped.pcache);
182 sqlite3_config(SQLITE_CONFIG_MUTEX, &mutexmethods);
183 sqlite3_config(SQLITE_CONFIG_MALLOC, &memmethods);
184 sqlite3_config(SQLITE_CONFIG_PCACHE2, &pcachemethods);
187 static int init_wrapper_install(
188 ClientData clientData, /* Unused */
189 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
190 int objc, /* Number of arguments */
191 Tcl_Obj *CONST objv[] /* Command arguments */
193 int i;
194 installInitWrappers();
195 for(i=1; i<objc; i++){
196 char *z = Tcl_GetString(objv[i]);
197 if( strcmp(z, "mem")==0 ){
198 wrapped.mem_fail = 1;
199 }else if( strcmp(z, "mutex")==0 ){
200 wrapped.mutex_fail = 1;
201 }else if( strcmp(z, "pcache")==0 ){
202 wrapped.pcache_fail = 1;
203 }else{
204 Tcl_AppendResult(interp, "Unknown argument: \"", z, "\"");
205 return TCL_ERROR;
208 return TCL_OK;
211 static int init_wrapper_uninstall(
212 ClientData clientData, /* Unused */
213 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
214 int objc, /* Number of arguments */
215 Tcl_Obj *CONST objv[] /* Command arguments */
217 if( objc!=1 ){
218 Tcl_WrongNumArgs(interp, 1, objv, "");
219 return TCL_ERROR;
222 sqlite3_shutdown();
223 sqlite3_config(SQLITE_CONFIG_MUTEX, &wrapped.mutex);
224 sqlite3_config(SQLITE_CONFIG_MALLOC, &wrapped.mem);
225 sqlite3_config(SQLITE_CONFIG_PCACHE2, &wrapped.pcache);
226 return TCL_OK;
229 static int init_wrapper_clear(
230 ClientData clientData, /* Unused */
231 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
232 int objc, /* Number of arguments */
233 Tcl_Obj *CONST objv[] /* Command arguments */
235 if( objc!=1 ){
236 Tcl_WrongNumArgs(interp, 1, objv, "");
237 return TCL_ERROR;
240 wrapped.mem_fail = 0;
241 wrapped.mutex_fail = 0;
242 wrapped.pcache_fail = 0;
243 return TCL_OK;
246 static int init_wrapper_query(
247 ClientData clientData, /* Unused */
248 Tcl_Interp *interp, /* The TCL interpreter that invoked this command */
249 int objc, /* Number of arguments */
250 Tcl_Obj *CONST objv[] /* Command arguments */
252 Tcl_Obj *pRet;
254 if( objc!=1 ){
255 Tcl_WrongNumArgs(interp, 1, objv, "");
256 return TCL_ERROR;
259 pRet = Tcl_NewObj();
260 if( wrapped.mutex_init ){
261 Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("mutex", -1));
263 if( wrapped.mem_init ){
264 Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("mem", -1));
266 if( wrapped.pcache_init ){
267 Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("pcache", -1));
270 Tcl_SetObjResult(interp, pRet);
271 return TCL_OK;
274 int Sqlitetest_init_Init(Tcl_Interp *interp){
275 static struct {
276 char *zName;
277 Tcl_ObjCmdProc *xProc;
278 } aObjCmd[] = {
279 {"init_wrapper_install", init_wrapper_install},
280 {"init_wrapper_query", init_wrapper_query },
281 {"init_wrapper_uninstall", init_wrapper_uninstall},
282 {"init_wrapper_clear", init_wrapper_clear}
284 int i;
286 for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
287 Tcl_CreateObjCommand(interp, aObjCmd[i].zName, aObjCmd[i].xProc, 0, 0);
290 return TCL_OK;