From 46620a87720943120cabe6ffe2e94a2c3506c4c2 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 14 Nov 2000 07:10:31 +0000
Subject: matz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1039 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 rubysig.h | 38 ++++++++++++++++++++++++++++++++------
 1 file changed, 32 insertions(+), 6 deletions(-)

(limited to 'rubysig.h')

diff --git a/rubysig.h b/rubysig.h
index a837c017b2..88b30830d9 100644
--- a/rubysig.h
+++ b/rubysig.h
@@ -13,14 +13,40 @@
 #ifndef SIG_H
 #define SIG_H
 
-EXTERN int rb_trap_immediate;
 #ifdef NT
-#define TRAP_BEG (rb_trap_immediate=1, SetEvent(rb_InterruptEvent))
-#define TRAP_END (rb_trap_immediate=0, ResetEvent(rb_InterruptEvent))
+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))
+
+/* Windows doesn't allow interrupt while system calls */
+# define TRAP_BEG win32_enter_syscall()
+# define TRAP_END win32_leave_syscall()
+# define RUBY_CRITICAL(statements) do {\
+    win32_disable_interrupt();\
+    statements;\
+    win32_enable_interrupt();\
+} while (0)
 #else
-#define TRAP_BEG (rb_trap_immediate=1)
-#define TRAP_END (rb_trap_immediate=0)
+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))
+
+# define TRAP_BEG (rb_trap_immediate=1)
+# define TRAP_END (rb_trap_immediate=0)
+# define RUBY_CRITICAL(statements) do {\
+    int trap_immediate = rb_trap_immediate;\
+    rb_trap_immediate = 0;\
+    statements;\
+    rb_trap_immediate = trap_immediate;\
+} while (0)
 #endif
+EXTERN rb_atomic_t rb_trap_immediate;
 
 EXTERN int rb_prohibit_interrupt;
 #define DEFER_INTS {rb_prohibit_interrupt++;}
@@ -29,7 +55,7 @@ EXTERN int rb_prohibit_interrupt;
 
 VALUE rb_with_disable_interrupt _((VALUE(*)(),VALUE));
 
-EXTERN int rb_trap_pending;
+EXTERN rb_atomic_t rb_trap_pending;
 void rb_trap_restore_mask _((void));
 
 EXTERN int rb_thread_critical;
-- 
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