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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2010-11-27 20:15:59 (GMT)
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2010-11-27 20:15:59 (GMT)
commit450463d5fbc7098666c1405b5ea1ece4c8dd04a5 (patch)
tree028db9106314e277c7bd6329c97ce13fef9e9094 /thread_pthread.h
parentac0f5a53b6d567b319df73878bd08d70cbbdc37c (diff)
* thread.c, vm_core.h: make gvl_acquire/release/init/destruct
APIs to modularize GVL implementation. * thread_pthread.c, thread_pthread.h: Two GVL implementations. (1) Simple locking GVL which is same as existing GVL. (2) Wake-up queued threads. The wake-up order is simple FIFO. (We can make several queues to support exact priorities, however this causes some issues such as priority inversion and so on.) This impl. prevents spin-loop (*1) caused on SMP environemnts. *1: Only one Ruby thread acqures GVL again and again. Bug #2359 [ruby-core:26694] * thread_win32.c, thread_win32.h: Using simple lock not by CRITICAL_SECTION but by Mutex. Bug #3890 [ruby-dev:42315] * vm.c (ruby_vm_destruct): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29956 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'thread_pthread.h')
-rw-r--r--thread_pthread.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/thread_pthread.h b/thread_pthread.h
index 94658d4..3742cb2 100644
--- a/thread_pthread.h
+++ b/thread_pthread.h
@@ -22,6 +22,18 @@ typedef pthread_cond_t rb_thread_cond_t;
typedef struct native_thread_data_struct {
void *signal_thread_list;
pthread_cond_t sleep_cond;
+ pthread_cond_t gvl_cond;
+ struct rb_thread_struct *gvl_next;
} native_thread_data_t;
+#include <semaphore.h>
+
+typedef struct rb_global_vm_lock_struct {
+ pthread_mutex_t lock;
+ struct rb_thread_struct * volatile waiting_threads;
+ struct rb_thread_struct *waiting_last_thread;
+ int waiting;
+ int volatile acquired;
+} rb_global_vm_lock_t;
+
#endif /* RUBY_THREAD_PTHREAD_H */