third_party/sqlite/src/src/test

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This source file includes following definitions.
wrMemInit
wrMemShutdown
wrMemMalloc
wrMemFree
wrMemRealloc
wrMemSize
wrMemRoundup
wrMutexInit
wrMutexEnd
wrMutexAlloc
wrMutexFree
wrMutexEnter
wrMutexTry
wrMutexLeave
wrMutexHeld
wrMutexNotheld
wrPCacheInit
wrPCacheShutdown
wrPCacheCreate
wrPCacheCachesize
wrPCachePagecount
wrPCacheFetch
wrPCacheUnpin
wrPCacheRekey
wrPCacheTruncate
wrPCacheDestroy
installInitWrappers
init_wrapper_install
init_wrapper_uninstall
init_wrapper_clear
init_wrapper_query
Sqlitetest_init_Init
/*
** 2009 August 17
**
** 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.
**
*************************************************************************
**
** The code in this file is used for testing SQLite. It is not part of
** the source code used in production systems.
**
** Specifically, this file tests the effect of errors while initializing
** the various pluggable sub-systems from within sqlite3_initialize().
** If an error occurs in sqlite3_initialize() the following should be
** true:
**
**   1) An error code is returned to the user, and
**   2) A subsequent call to sqlite3_shutdown() calls the shutdown method
**      of those subsystems that were initialized, and
**   3) A subsequent call to sqlite3_initialize() attempts to initialize
**      the remaining, uninitialized, subsystems.
*/

#include "sqliteInt.h"
#include <string.h>
#include <tcl.h>

static struct Wrapped {
  sqlite3_pcache_methods pcache;
  sqlite3_mem_methods    mem;
  sqlite3_mutex_methods  mutex;

  int mem_init;                /* True if mem subsystem is initalized */
  int mem_fail;                /* True to fail mem subsystem inialization */
  int mutex_init;              /* True if mutex subsystem is initalized */
  int mutex_fail;              /* True to fail mutex subsystem inialization */
  int pcache_init;             /* True if pcache subsystem is initalized */
  int pcache_fail;             /* True to fail pcache subsystem inialization */
} wrapped;

static int wrMemInit(void *pAppData){
  int rc;
  if( wrapped.mem_fail ){
    rc = SQLITE_ERROR;
  }else{
    rc = wrapped.mem.xInit(wrapped.mem.pAppData);
  }
  if( rc==SQLITE_OK ){
    wrapped.mem_init = 1;
  }
  return rc;
}
static void wrMemShutdown(void *pAppData){
  wrapped.mem.xShutdown(wrapped.mem.pAppData);
  wrapped.mem_init = 0;
}
static void *wrMemMalloc(int n)           {return wrapped.mem.xMalloc(n);}
static void wrMemFree(void *p)            {wrapped.mem.xFree(p);}
static void *wrMemRealloc(void *p, int n) {return wrapped.mem.xRealloc(p, n);}
static int wrMemSize(void *p)             {return wrapped.mem.xSize(p);}
static int wrMemRoundup(int n)            {return wrapped.mem.xRoundup(n);}


static int wrMutexInit(void){
  int rc;
  if( wrapped.mutex_fail ){
    rc = SQLITE_ERROR;
  }else{
    rc = wrapped.mutex.xMutexInit();
  }
  if( rc==SQLITE_OK ){
    wrapped.mutex_init = 1;
  }
  return rc;
}
static int wrMutexEnd(void){
  wrapped.mutex.xMutexEnd();
  wrapped.mutex_init = 0;
  return SQLITE_OK;
}
static sqlite3_mutex *wrMutexAlloc(int e){
  return wrapped.mutex.xMutexAlloc(e);
}
static void wrMutexFree(sqlite3_mutex *p){
  wrapped.mutex.xMutexFree(p);
}
static void wrMutexEnter(sqlite3_mutex *p){
  wrapped.mutex.xMutexEnter(p);
}
static int wrMutexTry(sqlite3_mutex *p){
  return wrapped.mutex.xMutexTry(p);
}
static void wrMutexLeave(sqlite3_mutex *p){
  wrapped.mutex.xMutexLeave(p);
}
static int wrMutexHeld(sqlite3_mutex *p){
  return wrapped.mutex.xMutexHeld(p);
}
static int wrMutexNotheld(sqlite3_mutex *p){
  return wrapped.mutex.xMutexNotheld(p);
}



static int wrPCacheInit(void *pArg){
  int rc;
  if( wrapped.pcache_fail ){
    rc = SQLITE_ERROR;
  }else{
    rc = wrapped.pcache.xInit(wrapped.pcache.pArg);
  }
  if( rc==SQLITE_OK ){
    wrapped.pcache_init = 1;
  }
  return rc;
}
static void wrPCacheShutdown(void *pArg){
  wrapped.pcache.xShutdown(wrapped.pcache.pArg);
  wrapped.pcache_init = 0;
}

static sqlite3_pcache *wrPCacheCreate(int a, int b){
  return wrapped.pcache.xCreate(a, b);
}  
static void wrPCacheCachesize(sqlite3_pcache *p, int n){
  wrapped.pcache.xCachesize(p, n);
}  
static int wrPCachePagecount(sqlite3_pcache *p){
  return wrapped.pcache.xPagecount(p);
}  
static void *wrPCacheFetch(sqlite3_pcache *p, unsigned a, int b){
  return wrapped.pcache.xFetch(p, a, b);
}  
static void wrPCacheUnpin(sqlite3_pcache *p, void *a, int b){
  wrapped.pcache.xUnpin(p, a, b);
}  
static void wrPCacheRekey(sqlite3_pcache *p, void *a, unsigned b, unsigned c){
  wrapped.pcache.xRekey(p, a, b, c);
}  
static void wrPCacheTruncate(sqlite3_pcache *p, unsigned a){
  wrapped.pcache.xTruncate(p, a);
}  
static void wrPCacheDestroy(sqlite3_pcache *p){
  wrapped.pcache.xDestroy(p);
}  

static void installInitWrappers(void){
  sqlite3_mutex_methods mutexmethods = {
    wrMutexInit,  wrMutexEnd,   wrMutexAlloc,
    wrMutexFree,  wrMutexEnter, wrMutexTry,
    wrMutexLeave, wrMutexHeld,  wrMutexNotheld
  };
  sqlite3_pcache_methods pcachemethods = {
    0,
    wrPCacheInit,      wrPCacheShutdown,  wrPCacheCreate, 
    wrPCacheCachesize, wrPCachePagecount, wrPCacheFetch,
    wrPCacheUnpin,     wrPCacheRekey,     wrPCacheTruncate,  
    wrPCacheDestroy
  };
  sqlite3_mem_methods memmethods = {
    wrMemMalloc,   wrMemFree,    wrMemRealloc,
    wrMemSize,     wrMemRoundup, wrMemInit,
    wrMemShutdown,
    0
  };

  memset(&wrapped, 0, sizeof(wrapped));

  sqlite3_shutdown();
  sqlite3_config(SQLITE_CONFIG_GETMUTEX, &wrapped.mutex);
  sqlite3_config(SQLITE_CONFIG_GETMALLOC, &wrapped.mem);
  sqlite3_config(SQLITE_CONFIG_GETPCACHE, &wrapped.pcache);
  sqlite3_config(SQLITE_CONFIG_MUTEX, &mutexmethods);
  sqlite3_config(SQLITE_CONFIG_MALLOC, &memmethods);
  sqlite3_config(SQLITE_CONFIG_PCACHE, &pcachemethods);
}

static int init_wrapper_install(
  ClientData clientData, /* Unused */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
  int objc,              /* Number of arguments */
  Tcl_Obj *CONST objv[]  /* Command arguments */
){
  int i;
  installInitWrappers();
  for(i=1; i<objc; i++){
    char *z = Tcl_GetString(objv[i]);
    if( strcmp(z, "mem")==0 ){
      wrapped.mem_fail = 1;
    }else if( strcmp(z, "mutex")==0 ){
      wrapped.mutex_fail = 1;
    }else if( strcmp(z, "pcache")==0 ){
      wrapped.pcache_fail = 1;
    }else{
      Tcl_AppendResult(interp, "Unknown argument: \"", z, "\"");
      return TCL_ERROR;
    }
  }
  return TCL_OK;
}

static int init_wrapper_uninstall(
  ClientData clientData, /* Unused */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
  int objc,              /* Number of arguments */
  Tcl_Obj *CONST objv[]  /* Command arguments */
){
  if( objc!=1 ){
    Tcl_WrongNumArgs(interp, 1, objv, "");
    return TCL_ERROR;
  }

  memset(&wrapped, 0, sizeof(&wrapped));
  sqlite3_shutdown();
  sqlite3_config(SQLITE_CONFIG_MUTEX, &wrapped.mutex);
  sqlite3_config(SQLITE_CONFIG_MALLOC, &wrapped.mem);
  sqlite3_config(SQLITE_CONFIG_PCACHE, &wrapped.pcache);
  return TCL_OK;
}

static int init_wrapper_clear(
  ClientData clientData, /* Unused */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
  int objc,              /* Number of arguments */
  Tcl_Obj *CONST objv[]  /* Command arguments */
){
  if( objc!=1 ){
    Tcl_WrongNumArgs(interp, 1, objv, "");
    return TCL_ERROR;
  }

  wrapped.mem_fail = 0;
  wrapped.mutex_fail = 0;
  wrapped.pcache_fail = 0;
  return TCL_OK;
}

static int init_wrapper_query(
  ClientData clientData, /* Unused */
  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
  int objc,              /* Number of arguments */
  Tcl_Obj *CONST objv[]  /* Command arguments */
){
  Tcl_Obj *pRet;

  if( objc!=1 ){
    Tcl_WrongNumArgs(interp, 1, objv, "");
    return TCL_ERROR;
  }

  pRet = Tcl_NewObj();
  if( wrapped.mutex_init ){
    Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("mutex", -1));
  }
  if( wrapped.mem_init ){
    Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("mem", -1));
  }
  if( wrapped.pcache_init ){
    Tcl_ListObjAppendElement(interp, pRet, Tcl_NewStringObj("pcache", -1));
  }

  Tcl_SetObjResult(interp, pRet);
  return TCL_OK;
}

int Sqlitetest_init_Init(Tcl_Interp *interp){
  static struct {
     char *zName;
     Tcl_ObjCmdProc *xProc;
  } aObjCmd[] = {
    {"init_wrapper_install",   init_wrapper_install},
    {"init_wrapper_query",     init_wrapper_query  },
    {"init_wrapper_uninstall", init_wrapper_uninstall},
    {"init_wrapper_clear",     init_wrapper_clear}
  };
  int i;

  for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
    Tcl_CreateObjCommand(interp, aObjCmd[i].zName, aObjCmd[i].xProc, 0, 0);
  }

  return TCL_OK;
}
/* [<][>][^][v][top][bottom][index][help] */
root/third_party/sqlite/src/src/test_init.c

DEFINITIONS
