/*
** Initialize the mutex system.
*/
static int sqlite3MutexInit()
{
int rc = SQLITE_OK;
if (null == sqlite3GlobalConfig.mutex.xMutexAlloc)
{
/* If the xMutexAlloc method has not been set, then the user did not
** install a mutex implementation via sqlite3_config() prior to
** sqlite3_initialize() being called. This block copies pointers to
** the default implementation into the sqlite3GlobalConfig structure.
*/
sqlite3_mutex_methods pFrom;
sqlite3_mutex_methods pTo = sqlite3GlobalConfig.mutex;
if (sqlite3GlobalConfig.bCoreMutex)
{
pFrom = sqlite3DefaultMutex();
}
else
{
pFrom = sqlite3NoopMutex();
}
//memcpy(pTo, pFrom, offsetof(sqlite3_mutex_methods, xMutexAlloc));
//memcpy(pTo.xMutexFree, pFrom.xMutexFree,
// sizeof(*pTo) - offsetof(sqlite3_mutex_methods, xMutexFree));
pTo.Copy(pFrom);
}
rc = sqlite3GlobalConfig.mutex.xMutexInit();
#if SQLITE_DEBUG
mutexIsInit = 1; //GLOBAL(int, mutexIsInit) = 1;
#endif
return(rc);
}
