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* vm_core.h (RUBY_VM_SET_TIMER_INTERRUPT, RUBY_VM_SET_INTERRUPT,

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RUBY_VM_SET_FINALIZER_INTERRUPT): use atomic ops for preventing
  interrupt_flag bit lost.
* thread.c (rb_threadptr_execute_interrupts_rec): ditto.
* vm_core.h (typedef struct rb_thread_struct): change type of
  interrupt_flag to rb_atomic_t.
* atomic.h: move atomic ops definition from signal.c.
* signal.c: remove atomic ops definition.
* common.mk (gc, signal, thread, cont): add to dependency to atomic.h.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32014 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-06-11 14:27:08 +00:00
parent 8df20d6b16
commit 9d4e471cf9
6 changed files with 71 additions and 38 deletions
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34
signal.c
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@ -16,33 +16,15 @@
#include <signal.h>
#include <stdio.h>
#include <errno.h>
#include "atomic.h"
#ifdef _WIN32
typedef LONG rb_atomic_t;
# define ATOMIC_TEST(var) InterlockedExchange(&(var), 0)
# define ATOMIC_SET(var, val) InterlockedExchange(&(var), (val))
# define ATOMIC_INC(var) InterlockedIncrement(&(var))
# define ATOMIC_DEC(var) InterlockedDecrement(&(var))
#elif defined HAVE_GCC_ATOMIC_BUILTINS
/* @shyouhei hack to support atomic operations in case of gcc. Gcc
* has its own pseudo-insns to support them. See info, or
* http://gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html */
typedef unsigned int rb_atomic_t; /* Anything OK */
# define ATOMIC_TEST(var) __sync_lock_test_and_set(&(var), 0)
# define ATOMIC_SET(var, val) __sync_lock_test_and_set(&(var), (val))
# define ATOMIC_INC(var) __sync_fetch_and_add(&(var), 1)
# define ATOMIC_DEC(var) __sync_fetch_and_sub(&(var), 1)
#else
typedef int rb_atomic_t;
# define ATOMIC_TEST(var) ((var) ? ((var) = 0, 1) : 0)
# define ATOMIC_SET(var, val) ((var) = (val))
# define ATOMIC_INC(var) (++(var))
# define ATOMIC_DEC(var) (--(var))
#if !defined(_WIN32) && !defined(HAVE_GCC_ATOMIC_BUILTINS)
rb_atomic_t ruby_atomic_exchange(rb_atomic_t *ptr, rb_atomic_t val)
{
rb_atomic_t old = *ptr;
*ptr = val;
return old;
}
#endif
#if defined(__BEOS__) || defined(__HAIKU__)