/*
* Mutex Cleanup Function
* Reset the mutex function callback pointers.
* Called from the global ICU u_cleanup() function.
*/
U_CFUNC UBool umtx_cleanup(void) {
/* Extra, do-nothing function call to suppress compiler warnings on platforms where
* mutexed_compare_and_swap is not otherwise used. */
void *pv = &globalMutex;
mutexed_compare_and_swap(&pv, NULL, NULL);
usrMutexCleanup();
pIncFn = NULL;
pDecFn = NULL;
gIncDecContext = NULL;
return TRUE;
}
U_CFUNC UBool umtx_cleanup(void) {
ICUMutex *thisMutex = NULL;
ICUMutex *nextMutex = NULL;
/* Extra, do-nothing function call to suppress compiler warnings on platforms where
* mutexed_compare_and_swap is not otherwise used. */
mutexed_compare_and_swap(&globalUMTX, NULL, NULL);
/* Delete all of the ICU mutexes. Do the global mutex last because it is used during
* the umtx_destroy operation of other mutexes.
*/
for (thisMutex=mutexListHead; thisMutex!=NULL; thisMutex=nextMutex) {
UMTX *umtx = thisMutex->owner;
nextMutex = thisMutex->next;
U_ASSERT(*umtx = (void *)thisMutex);
if (umtx != &globalUMTX) {
umtx_destroy(umtx);
}
}
umtx_destroy(&globalUMTX);
pMutexInitFn = NULL;
pMutexDestroyFn = NULL;
pMutexLockFn = NULL;
pMutexUnlockFn = NULL;
gMutexContext = NULL;
pIncFn = NULL;
pDecFn = NULL;
gIncDecContext = NULL;
gIncDecMutex = NULL;
#if defined (POSIX)
/* POSIX platforms must come out of u_cleanup() with a functioning global mutex
* to permit the safe resumption of use of ICU in multi-threaded environments.
*/
umtx_init(&globalUMTX);
#endif
return TRUE;
}
