227     sqlite3_mutex_methods const *pFrom;  in sqlite3MutexInit()  local
232       pFrom = multiThreadedCheckMutex();  in sqlite3MutexInit()
234       pFrom = sqlite3DefaultMutex();  in sqlite3MutexInit()
237       pFrom = sqlite3NoopMutex();  in sqlite3MutexInit()
239     pTo->xMutexInit = pFrom->xMutexInit;  in sqlite3MutexInit()
240     pTo->xMutexEnd = pFrom->xMutexEnd;  in sqlite3MutexInit()
241     pTo->xMutexFree = pFrom->xMutexFree;  in sqlite3MutexInit()
242     pTo->xMutexEnter = pFrom->xMutexEnter;  in sqlite3MutexInit()
243     pTo->xMutexTry = pFrom->xMutexTry;  in sqlite3MutexInit()
244     pTo->xMutexLeave = pFrom->xMutexLeave;  in sqlite3MutexInit()
245     pTo->xMutexHeld = pFrom->xMutexHeld;  in sqlite3MutexInit()
246     pTo->xMutexNotheld = pFrom->xMutexNotheld;  in sqlite3MutexInit()
248     pTo->xMutexAlloc = pFrom->xMutexAlloc;  in sqlite3MutexInit()