mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
* thread_pthread.c (register_ubf_list): renamed from
add_signal_thread_list. * thread_pthread.c (unregister_ubf_list): renamed from remove_signal_thread_list. * thread_pthread.c (ubf_wakeup_all_threads): renamed from ping_signal_thread_list. * thread_pthread.c (ubf_wakeup_thread): renamed from ubf_select_each. * thread_pthread.c (ubf_threads_empty): renamed from check_signal_thread_list(). * thread_pthread.c (ubf_list_lock): renamed from signal_thread_list_lock. * thread_pthread.c (register_ubf_list): large simplification by using ccan/list.h. bonus: removed malloc() and exit(EXIT_FAILURE). * thread_pthread.c (unregister_ubf_list): ditto. * thread_pthread.c (ubf_threads_empty): ditto. * thread_pthread.c (ubf_wakeup_all_threads): ditto. * thread_pthread.c (print_signal_list): removed. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52818 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki
parent
a014e9e8c6
commit
487748fac8
5 changed files with 91 additions and 117 deletions
24
ChangeLog
24
ChangeLog
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@ -1,3 +1,27 @@
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Thu Oct 22 12:54:43 2015 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
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* thread_pthread.c (register_ubf_list): renamed from
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add_signal_thread_list.
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* thread_pthread.c (unregister_ubf_list): renamed
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from remove_signal_thread_list.
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* thread_pthread.c (ubf_wakeup_all_threads): renamed from
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ping_signal_thread_list.
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* thread_pthread.c (ubf_wakeup_thread): renamed from
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ubf_select_each.
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* thread_pthread.c (ubf_threads_empty): renamed from
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check_signal_thread_list().
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* thread_pthread.c (ubf_list_lock): renamed from
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signal_thread_list_lock.
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* thread_pthread.c (register_ubf_list): large simplification
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by using ccan/list.h.
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bonus: removed malloc() and exit(EXIT_FAILURE).
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* thread_pthread.c (unregister_ubf_list): ditto.
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* thread_pthread.c (ubf_threads_empty): ditto.
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* thread_pthread.c (ubf_wakeup_all_threads): ditto.
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* thread_pthread.c (print_signal_list): removed.
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Thu Oct 22 08:03:49 2015 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
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* test/ruby/test_rand.rb (TestRand#test_default_seed): add
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2
thread.c
2
thread.c
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@ -1261,7 +1261,7 @@ blocking_region_end(rb_thread_t *th, struct rb_blocking_region_buffer *region)
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gvl_acquire(th->vm, th);
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rb_thread_set_current(th);
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thread_debug("leave blocking region (%p)\n", (void *)th);
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remove_signal_thread_list(th);
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unregister_ubf_list(th);
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th->blocking_region_buffer = 0;
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reset_unblock_function(th, ®ion->oldubf);
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if (th->status == THREAD_STOPPED) {
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178
thread_pthread.c
178
thread_pthread.c
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@ -420,12 +420,8 @@ native_cond_timeout(rb_nativethread_cond_t *cond, struct timespec timeout_rel)
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#endif
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#if defined(SIGVTALRM) && !defined(__CYGWIN__)
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#define USE_SIGNAL_THREAD_LIST 1
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#endif
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#ifdef USE_SIGNAL_THREAD_LIST
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static void add_signal_thread_list(rb_thread_t *th);
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static void remove_signal_thread_list(rb_thread_t *th);
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static rb_nativethread_lock_t signal_thread_list_lock;
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#define USE_UBF_LIST 1
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static rb_nativethread_lock_t ubf_list_lock;
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#endif
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static pthread_key_t ruby_native_thread_key;
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@ -459,8 +455,8 @@ Init_native_thread(void)
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th->thread_id = pthread_self();
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fill_thread_id_str(th);
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native_thread_init(th);
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#ifdef USE_SIGNAL_THREAD_LIST
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native_mutex_initialize(&signal_thread_list_lock);
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#ifdef USE_UBF_LIST
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native_mutex_initialize(&ubf_list_lock);
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#endif
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#ifndef __native_client__
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posix_signal(SIGVTALRM, null_func);
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@ -470,7 +466,12 @@ Init_native_thread(void)
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static void
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native_thread_init(rb_thread_t *th)
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{
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native_cond_initialize(&th->native_thread_data.sleep_cond, RB_CONDATTR_CLOCK_MONOTONIC);
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native_thread_data_t *nd = &th->native_thread_data;
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#ifdef USE_UBF_LIST
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list_node_init(&nd->ubf_list);
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#endif
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native_cond_initialize(&nd->sleep_cond, RB_CONDATTR_CLOCK_MONOTONIC);
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ruby_thread_set_native(th);
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}
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@ -1135,144 +1136,93 @@ native_sleep(rb_thread_t *th, struct timeval *timeout_tv)
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thread_debug("native_sleep done\n");
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}
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#ifdef USE_SIGNAL_THREAD_LIST
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struct signal_thread_list {
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rb_thread_t *th;
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struct signal_thread_list *prev;
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struct signal_thread_list *next;
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};
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#ifdef USE_UBF_LIST
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static LIST_HEAD(ubf_list_head);
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static struct signal_thread_list signal_thread_list_anchor = {
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0, 0, 0,
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};
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#define FGLOCK(lock, body) do { \
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native_mutex_lock(lock); \
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{ \
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body; \
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} \
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native_mutex_unlock(lock); \
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} while (0)
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#if 0 /* for debug */
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/* The thread 'th' is registered to be trying unblock. */
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static void
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print_signal_list(char *str)
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register_ubf_list(rb_thread_t *th)
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{
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struct signal_thread_list *list =
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signal_thread_list_anchor.next;
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thread_debug("list (%s)> ", str);
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while (list) {
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thread_debug("%p (%p), ", list->th, list->th->thread_id);
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list = list->next;
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}
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thread_debug("\n");
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}
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#endif
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struct list_node *node = &th->native_thread_data.ubf_list;
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static void
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add_signal_thread_list(rb_thread_t *th)
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{
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if (!th->native_thread_data.signal_thread_list) {
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FGLOCK(&signal_thread_list_lock, {
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struct signal_thread_list *list =
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malloc(sizeof(struct signal_thread_list));
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if (list == 0) {
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fprintf(stderr, "[FATAL] failed to allocate memory\n");
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exit(EXIT_FAILURE);
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}
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list->th = th;
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list->prev = &signal_thread_list_anchor;
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list->next = signal_thread_list_anchor.next;
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if (list->next) {
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list->next->prev = list;
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}
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signal_thread_list_anchor.next = list;
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th->native_thread_data.signal_thread_list = list;
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});
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if (list_empty((struct list_head*)node)) {
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native_mutex_lock(&ubf_list_lock);
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list_add(&ubf_list_head, node);
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native_mutex_unlock(&ubf_list_lock);
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}
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}
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/* The thread 'th' is unblocked. It no longer need to be registered. */
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static void
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remove_signal_thread_list(rb_thread_t *th)
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unregister_ubf_list(rb_thread_t *th)
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{
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if (th->native_thread_data.signal_thread_list) {
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FGLOCK(&signal_thread_list_lock, {
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struct signal_thread_list *list =
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(struct signal_thread_list *)
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th->native_thread_data.signal_thread_list;
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struct list_node *node = &th->native_thread_data.ubf_list;
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list->prev->next = list->next;
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if (list->next) {
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list->next->prev = list->prev;
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}
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th->native_thread_data.signal_thread_list = 0;
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list->th = 0;
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free(list); /* ok */
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});
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if (!list_empty((struct list_head*)node)) {
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native_mutex_lock(&ubf_list_lock);
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list_del_init(node);
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native_mutex_unlock(&ubf_list_lock);
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}
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}
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/*
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* send a signal to intent that a target thread return from blocking syscall.
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* Maybe any signal is ok, but we chose SIGVTALRM.
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*/
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static void
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ubf_select_each(rb_thread_t *th)
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ubf_wakeup_thread(rb_thread_t *th)
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{
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thread_debug("ubf_select_each (%"PRI_THREAD_ID")\n", thread_id_str(th));
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if (th) {
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thread_debug("thread_wait_queue_wakeup (%"PRI_THREAD_ID")\n", thread_id_str(th));
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if (th)
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pthread_kill(th->thread_id, SIGVTALRM);
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}
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}
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static void
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ubf_select(void *ptr)
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{
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rb_thread_t *th = (rb_thread_t *)ptr;
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add_signal_thread_list(th);
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register_ubf_list(th);
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/*
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* ubf_select_each() doesn't guarantee to wake up the target thread.
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* Therefore, we need to activate timer thread when called from
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* Thread#kill etc.
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* ubf_wakeup_thread() doesn't guarantee to wake up a target thread.
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* Therefore, we repeatedly call ubf_wakeup_thread() until a target thread
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* exit from ubf function.
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* In the other hands, we shouldn't call rb_thread_wakeup_timer_thread()
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* if running on timer thread because it may make endless wakeups.
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*/
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if (!pthread_equal(pthread_self(), timer_thread.id))
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rb_thread_wakeup_timer_thread();
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ubf_select_each(th);
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}
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static void
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ping_signal_thread_list(void)
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{
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if (signal_thread_list_anchor.next) {
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FGLOCK(&signal_thread_list_lock, {
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struct signal_thread_list *list;
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list = signal_thread_list_anchor.next;
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while (list) {
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ubf_select_each(list->th);
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list = list->next;
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}
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});
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}
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ubf_wakeup_thread(th);
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}
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static int
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check_signal_thread_list(void)
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ubf_threads_empty(void)
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{
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if (signal_thread_list_anchor.next)
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return 1;
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else
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return 0;
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return list_empty(&ubf_list_head);
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}
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#else /* USE_SIGNAL_THREAD_LIST */
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#define add_signal_thread_list(th) (void)(th)
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#define remove_signal_thread_list(th) (void)(th)
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static void
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ubf_wakeup_all_threads(void)
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{
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rb_thread_t *th;
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if (!ubf_threads_empty()) {
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native_mutex_lock(&ubf_list_lock);
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list_for_each(&ubf_list_head, th,
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native_thread_data.ubf_list) {
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ubf_wakeup_thread(th);
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}
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native_mutex_unlock(&ubf_list_lock);
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}
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}
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#else /* USE_UBF_LIST */
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#define register_ubf_list(th) (void)(th)
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#define unregister_ubf_list(th) (void)(th)
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#define ubf_select 0
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static void ping_signal_thread_list(void) { return; }
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static int check_signal_thread_list(void) { return 0; }
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#endif /* USE_SIGNAL_THREAD_LIST */
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static void ubf_wakeup_all_threads(void) { return; }
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static int ubf_threads_empty(void) { return 1; }
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#endif /* USE_UBF_LIST */
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#define TT_DEBUG 0
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#define WRITE_CONST(fd, str) (void)(write((fd),(str),sizeof(str)-1)<0)
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@ -1479,7 +1429,7 @@ timer_thread_sleep(rb_global_vm_lock_t* gvl)
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pollfds[1].fd = timer_thread_pipe.low[0];
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pollfds[1].events = POLLIN;
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need_polling = check_signal_thread_list();
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need_polling = !ubf_threads_empty();
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if (gvl->waiting > 0 || need_polling) {
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/* polling (TIME_QUANTUM_USEC usec) */
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@ -1587,7 +1537,7 @@ thread_timer(void *p)
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while (system_working > 0) {
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/* timer function */
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ping_signal_thread_list();
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ubf_wakeup_all_threads();
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timer_thread_function(0);
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if (TT_DEBUG) WRITE_CONST(2, "tick\n");
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@ -26,7 +26,7 @@ typedef struct rb_thread_cond_struct {
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} rb_nativethread_cond_t;
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typedef struct native_thread_data_struct {
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void *signal_thread_list;
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struct list_node ubf_list;
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rb_nativethread_cond_t sleep_cond;
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} native_thread_data_t;
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@ -19,7 +19,7 @@
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#undef Sleep
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#define native_thread_yield() Sleep(0)
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#define remove_signal_thread_list(th)
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#define unregister_ubf_list(th)
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static volatile DWORD ruby_native_thread_key = TLS_OUT_OF_INDEXES;
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