void _PR_CleanupMW(void)
{
PR_DestroyLock(mw_lock);
mw_lock = NULL;
if (mw_state->group) {
PR_DestroyWaitGroup(mw_state->group);
/* mw_state->group is set to NULL as a side effect. */
}
PR_DELETE(mw_state);
} /* _PR_CleanupMW */
static PRWaitGroup *MW_Init2(void)
{
PRWaitGroup *group = mw_state->group; /* it's the null group */
if (NULL == group) /* there is this special case */
{
group = PR_CreateWaitGroup(_PR_DEFAULT_HASH_LENGTH);
if (NULL == group) goto failed_alloc;
PR_Lock(mw_lock);
if (NULL == mw_state->group)
{
mw_state->group = group;
group = NULL;
}
PR_Unlock(mw_lock);
if (group != NULL) (void)PR_DestroyWaitGroup(group);
group = mw_state->group; /* somebody beat us to it */
}
failed_alloc:
return group; /* whatever */
} /* MW_Init2 */
