int list_remove(llist_t *the_list, val_t val)
{
// lock sentinel node
node_t *prev = the_list->head;
LOCK(prev->lock);
if (prev->next == NULL) {
// the list is empty
UNLOCK(prev->lock);
return 0;
}
node_t *elem = prev->next;
LOCK(elem->lock);
while (elem->next != NULL && elem->data <= val) {
if (elem->data == val) {
// if found, assign prev next to elem next
prev->next = elem->next;
// unlock and deallocate mem
UNLOCK(elem->lock);
DESTROY_LOCK(elem->lock);
free(elem->lock);
free(elem);
// its a success
UNLOCK(prev->lock);
return 1;
}
UNLOCK(prev->lock);
prev = elem;
elem = elem->next;
LOCK(elem->lock);
}
// just check if the last node in the list is not equal to val
if (elem->data == val) {
// if found, assign prev next to elem next
prev->next = elem->next;
// unlock and deallocate mem
UNLOCK(elem->lock);
DESTROY_LOCK(elem->lock);
free(elem->lock);
free(elem);
// its a success
UNLOCK(prev->lock);
return 1;
}
// we did not find it; unlock and report failure
UNLOCK(elem->lock);
UNLOCK(prev->lock);
return 0;
}
void
terminateWorkerThreads(void)
{
int i;
VLOG(("httpserv: server_thread: waiting on stopping"));
PZ_Lock(qLock);
PZ_NotifyAllCondVar(jobQNotEmptyCv);
PZ_Unlock(qLock);
/* Wait for worker threads to terminate. */
for (i = 0; i < maxThreads; ++i) {
perThread *slot = threads + i;
if (slot->prThread) {
PR_JoinThread(slot->prThread);
}
}
/* The worker threads empty the jobQ before they terminate. */
PZ_Lock(qLock);
PORT_Assert(threadCount == 0);
PORT_Assert(PR_CLIST_IS_EMPTY(&jobQ));
PZ_Unlock(qLock);
DESTROY_CONDVAR(jobQNotEmptyCv);
DESTROY_CONDVAR(freeListNotEmptyCv);
DESTROY_CONDVAR(threadCountChangeCv);
PR_DestroyLock(lastLoadedCrlLock);
DESTROY_LOCK(qLock);
PR_Free(jobTable);
PR_Free(threads);
}
void
ottery_st_wipe(struct ottery_state *st)
{
DESTROY_LOCK(&st->mutex);
ottery_st_wipe_nolock(st);
}
static void
destroy_writer (struct writer_context_s *ctx)
{
LOCK (ctx->mutex);
ctx->refcount--;
if (ctx->refcount != 0)
{
UNLOCK (ctx->mutex);
return;
}
ctx->stop_me = 1;
if (ctx->have_data)
SetEvent (ctx->have_data);
UNLOCK (ctx->mutex);
TRACE1 (DEBUG_SYSIO, "gpgme:destroy_writer", ctx->file_hd,
"waiting for termination of thread %p", ctx->thread_hd);
WaitForSingleObject (ctx->stopped, INFINITE);
TRACE1 (DEBUG_SYSIO, "gpgme:destroy_writer", ctx->file_hd,
"thread %p has terminated", ctx->thread_hd);
if (ctx->stopped)
CloseHandle (ctx->stopped);
if (ctx->have_data)
CloseHandle (ctx->have_data);
if (ctx->is_empty)
CloseHandle (ctx->is_empty);
CloseHandle (ctx->thread_hd);
DESTROY_LOCK (ctx->mutex);
free (ctx);
}
/* Release all resources associated with the given context. */
void
gpgme_release (gpgme_ctx_t ctx)
{
TRACE (DEBUG_CTX, "gpgme_release", ctx);
if (!ctx)
return;
_gpgme_engine_release (ctx->engine);
ctx->engine = NULL;
_gpgme_fd_table_deinit (&ctx->fdt);
_gpgme_release_result (ctx);
_gpgme_signers_clear (ctx);
_gpgme_sig_notation_clear (ctx);
if (ctx->signers)
free (ctx->signers);
if (ctx->lc_ctype)
free (ctx->lc_ctype);
if (ctx->lc_messages)
free (ctx->lc_messages);
_gpgme_engine_info_release (ctx->engine_info);
ctx->engine_info = NULL;
DESTROY_LOCK (ctx->lock);
free (ctx);
}
void
node_delete_l(node_l_t *node)
{
DESTROY_LOCK(&node->lock);
#if GC == 1
ssfree((void*) node);
#endif
}
static struct writer_context_s *
create_writer (HANDLE fd)
{
struct writer_context_s *c;
SECURITY_ATTRIBUTES sec_attr;
DWORD tid;
DEBUG1 ("creating new write thread for file handle %p", fd );
memset (&sec_attr, 0, sizeof sec_attr );
sec_attr.nLength = sizeof sec_attr;
sec_attr.bInheritHandle = FALSE;
c = calloc (1, sizeof *c );
if (!c)
return NULL;
c->file_hd = fd;
c->have_data = CreateEvent (&sec_attr, TRUE, FALSE, NULL);
c->is_empty = CreateEvent (&sec_attr, TRUE, TRUE, NULL);
c->stopped = CreateEvent (&sec_attr, TRUE, FALSE, NULL);
if (!c->have_data || !c->is_empty || !c->stopped ) {
DEBUG1 ("** CreateEvent failed: ec=%d\n", (int)GetLastError ());
if (c->have_data)
CloseHandle (c->have_data);
if (c->is_empty)
CloseHandle (c->is_empty);
if (c->stopped)
CloseHandle (c->stopped);
free (c);
return NULL;
}
c->is_empty = set_synchronize (c->is_empty);
INIT_LOCK (c->mutex);
c->thread_hd = CreateThread (&sec_attr, 0, writer, c, 0, &tid );
if (!c->thread_hd) {
DEBUG1 ("** failed to create writer thread: ec=%d\n",
(int)GetLastError ());
DESTROY_LOCK (c->mutex);
if (c->have_data)
CloseHandle (c->have_data);
if (c->is_empty)
CloseHandle (c->is_empty);
if (c->stopped)
CloseHandle (c->stopped);
free (c);
return NULL;
}
else {
/* We set the priority of the thread higher because we know that
it only runs for a short time. This greatly helps to increase
the performance of the I/O. */
SetThreadPriority (c->thread_hd, get_desired_thread_priority ());
}
return c;
}
void list_delete(llist_t *the_list)
{
/* must lock the whole list */
node_t *elem = the_list->head;
LOCK(elem->lock);
if (elem->next == NULL) {
/* we have an empty list, just delete sentinel node */
UNLOCK(elem->lock);
DESTROY_LOCK(elem->lock);
/* deallocate memory and we are done */
free(elem->lock);
free(elem);
} else {
// we need to go through list
while (elem->next != NULL) {
// lock everything
LOCK(elem->next->lock);
elem = elem->next;
}
// everything is locked, delete them
while (the_list->head != NULL) {
elem = the_list->head;
the_list->head = elem->next;
UNLOCK(elem->lock);
DESTROY_LOCK(elem->lock);
free(elem->lock);
free(elem);
}
}
// deallocate memory
free(the_list);
}
void set_delete_l(intset_l_t *set)
{
node_l_t *node, *next;
node = set->head;
while (node != NULL)
{
next = node->next;
DESTROY_LOCK(&node->lock);
/* free(node); */
ssfree((void*) node); /* TODO : fix with ssmem */
node = next;
}
ssfree(set);
}
/* {{{ apc_cache_destroy */
PHP_APCU_API void apc_cache_destroy(apc_cache_t* cache)
{
if (!cache) {
return;
}
/* destroy lock */
DESTROY_LOCK(&cache->header->lock);
/* XXX this is definitely a leak, but freeing this causes all the apache
children to freeze. It might be because the segment is shared between
several processes. To figure out is how to free this safely. */
/*apc_sma_free(cache->shmaddr);*/
apc_efree(cache);
}
void apc_interned_strings_shutdown(TSRMLS_D)
{
if (apc_interned_strings_data) {
zend_hash_clean(CG(function_table));
zend_hash_clean(CG(class_table));
zend_hash_clean(EG(zend_constants));
CG(interned_strings_start) = old_interned_strings_start;
CG(interned_strings_end) = old_interned_strings_end;
zend_new_interned_string = old_new_interned_string;
zend_interned_strings_snapshot = old_interned_strings_snapshot;
zend_interned_strings_restore = old_interned_strings_restore;
DESTROY_LOCK(APCSG(lock));
}
}
void
terminateWorkerThreads(void)
{
VLOG(("selfserv: server_thead: waiting on stopping"));
PZ_Lock(qLock);
PZ_NotifyAllCondVar(jobQNotEmptyCv);
while (threadCount > 0) {
PZ_WaitCondVar(threadCountChangeCv, PR_INTERVAL_NO_TIMEOUT);
}
/* The worker threads empty the jobQ before they terminate. */
PORT_Assert(PR_CLIST_IS_EMPTY(&jobQ));
PZ_Unlock(qLock);
DESTROY_CONDVAR(jobQNotEmptyCv);
DESTROY_CONDVAR(freeListNotEmptyCv);
DESTROY_CONDVAR(threadCountChangeCv);
PR_DestroyLock(lastLoadedCrlLock);
DESTROY_LOCK(qLock);
PR_Free(jobTable);
PR_Free(threads);
}
static void
destroy_writer (struct writer_context_s *c)
{
LOCK (c->mutex);
c->stop_me = 1;
if (c->have_data)
SetEvent (c->have_data);
UNLOCK (c->mutex);
DEBUG1 ("waiting for thread %p termination ...", c->thread_hd );
WaitForSingleObject (c->stopped, INFINITE);
DEBUG1 ("thread %p has terminated", c->thread_hd );
if (c->stopped)
CloseHandle (c->stopped);
if (c->have_data)
CloseHandle (c->have_data);
if (c->is_empty)
CloseHandle (c->is_empty);
CloseHandle (c->thread_hd);
DESTROY_LOCK (c->mutex);
free (c);
}
static struct writer_context_s *
create_writer (HANDLE fd)
{
struct writer_context_s *ctx;
SECURITY_ATTRIBUTES sec_attr;
DWORD tid;
TRACE_BEG (DEBUG_SYSIO, "gpgme:create_writer", fd);
memset (&sec_attr, 0, sizeof sec_attr);
sec_attr.nLength = sizeof sec_attr;
sec_attr.bInheritHandle = FALSE;
ctx = calloc (1, sizeof *ctx);
if (!ctx)
{
TRACE_SYSERR (errno);
return NULL;
}
ctx->file_hd = fd;
ctx->refcount = 1;
ctx->have_data = CreateEvent (&sec_attr, TRUE, FALSE, NULL);
if (ctx->have_data)
ctx->is_empty = CreateEvent (&sec_attr, TRUE, TRUE, NULL);
if (ctx->is_empty)
ctx->stopped = CreateEvent (&sec_attr, TRUE, FALSE, NULL);
if (!ctx->have_data || !ctx->is_empty || !ctx->stopped)
{
TRACE_LOG1 ("CreateEvent failed: ec=%d", (int) GetLastError ());
if (ctx->have_data)
CloseHandle (ctx->have_data);
if (ctx->is_empty)
CloseHandle (ctx->is_empty);
if (ctx->stopped)
CloseHandle (ctx->stopped);
free (ctx);
/* FIXME: Translate the error code. */
TRACE_SYSERR (EIO);
return NULL;
}
ctx->is_empty = set_synchronize (ctx->is_empty);
INIT_LOCK (ctx->mutex);
ctx->thread_hd = CreateThread (&sec_attr, 0, writer, ctx, 0, &tid );
if (!ctx->thread_hd)
{
TRACE_LOG1 ("CreateThread failed: ec=%d", (int) GetLastError ());
DESTROY_LOCK (ctx->mutex);
if (ctx->have_data)
CloseHandle (ctx->have_data);
if (ctx->is_empty)
CloseHandle (ctx->is_empty);
if (ctx->stopped)
CloseHandle (ctx->stopped);
free (ctx);
TRACE_SYSERR (EIO);
return NULL;
}
else
{
/* We set the priority of the thread higher because we know
that it only runs for a short time. This greatly helps to
increase the performance of the I/O. */
SetThreadPriority (ctx->thread_hd, get_desired_thread_priority ());
}
TRACE_SUC ();
return ctx;
}