From 450463d5fbc7098666c1405b5ea1ece4c8dd04a5 Mon Sep 17 00:00:00 2001 From: ko1 Date: Sat, 27 Nov 2010 20:15:59 +0000 Subject: * 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 --- thread_pthread.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'thread_pthread.h') diff --git a/thread_pthread.h b/thread_pthread.h index 94658d4e0c..3742cb2848 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 + +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 */ -- cgit v1.2.1