static gboolean
workers_dequeue_and_do_job (WorkerData *data)
{
JobQueueEntry *entry;
/*
* At this point the GC might not be running anymore. We
* could have been woken up by a job that was then taken by
* another thread, after which the collection finished, so we
* first have to successfully dequeue a job before doing
* anything assuming that the collection is still ongoing.
*/
if (!workers_job_queue_num_entries)
return FALSE;
mono_mutex_lock (&workers_job_queue_mutex);
entry = (JobQueueEntry*)workers_job_queue;
if (entry) {
workers_job_queue = entry->next;
--workers_job_queue_num_entries;
}
mono_mutex_unlock (&workers_job_queue_mutex);
if (!entry)
return FALSE;
g_assert (collection_needs_workers ());
entry->func (data, entry->data);
sgen_free_internal (entry, INTERNAL_MEM_JOB_QUEUE_ENTRY);
SGEN_ATOMIC_ADD (workers_num_jobs_finished, 1);
return TRUE;
}
void
sgen_gray_object_free_queue_section (GrayQueueSection *section)
{
sgen_free_internal (section, INTERNAL_MEM_GRAY_QUEUE);
}
static void
sgen_ssb_finish_scan_remsets (void *start_nursery, void *end_nursery, SgenGrayQueue *queue)
{
int i;
SgenThreadInfo *info;
RememberedSet *remset;
GenericStoreRememberedSet *store_remset;
mword *p;
#ifdef HEAVY_STATISTICS
remset_stats ();
#endif
/* the generic store ones */
store_remset = generic_store_remsets;
while (store_remset) {
GenericStoreRememberedSet *next = store_remset->next;
for (i = 0; i < STORE_REMSET_BUFFER_SIZE - 1; ++i) {
gpointer addr = store_remset->data [i];
if (addr)
handle_remset ((mword*)&addr, start_nursery, end_nursery, FALSE, queue);
}
sgen_free_internal (store_remset, INTERNAL_MEM_STORE_REMSET);
store_remset = next;
}
generic_store_remsets = NULL;
/* the per-thread ones */
FOREACH_THREAD (info) {
RememberedSet *next;
int j;
for (remset = info->remset; remset; remset = next) {
SGEN_LOG (4, "Scanning remset for thread %p, range: %p-%p, size: %td", info, remset->data, remset->store_next, remset->store_next - remset->data);
for (p = remset->data; p < remset->store_next;)
p = handle_remset (p, start_nursery, end_nursery, FALSE, queue);
remset->store_next = remset->data;
next = remset->next;
remset->next = NULL;
if (remset != info->remset) {
SGEN_LOG (4, "Freed remset at %p", remset->data);
sgen_free_internal_dynamic (remset, remset_byte_size (remset), INTERNAL_MEM_REMSET);
}
}
for (j = 0; j < *info->store_remset_buffer_index_addr; ++j)
handle_remset ((mword*)*info->store_remset_buffer_addr + j + 1, start_nursery, end_nursery, FALSE, queue);
clear_thread_store_remset_buffer (info);
} END_FOREACH_THREAD
/* the freed thread ones */
while (freed_thread_remsets) {
RememberedSet *next;
remset = freed_thread_remsets;
SGEN_LOG (4, "Scanning remset for freed thread, range: %p-%p, size: %td", remset->data, remset->store_next, remset->store_next - remset->data);
for (p = remset->data; p < remset->store_next;)
p = handle_remset (p, start_nursery, end_nursery, FALSE, queue);
next = remset->next;
SGEN_LOG (4, "Freed remset at %p", remset->data);
sgen_free_internal_dynamic (remset, remset_byte_size (remset), INTERNAL_MEM_REMSET);
freed_thread_remsets = next;
}
}
