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authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-08-13 05:45:20 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>1999-08-13 05:45:20 +0000
commit65a5162550f58047974793cdc8067a970b2435c0 (patch)
tree082bb7d5568f3b2e36e3fe166e9f3039394fcf44 /rubysig.h
parentfcd020c83028f5610d382e85a2df00223e12bd7e (diff)
1.4.0
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'rubysig.h')
-rw-r--r--rubysig.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/rubysig.h b/rubysig.h
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index 0000000..97de442
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+++ b/rubysig.h
@@ -0,0 +1,50 @@
+/************************************************
+
+ rubysig.h -
+
+ $Author$
+ $Date$
+ created at: Wed Aug 16 01:15:38 JST 1995
+
+************************************************/
+#ifndef SIG_H
+#define SIG_H
+
+EXTERN int rb_trap_immediate;
+#define TRAP_BEG (rb_trap_immediate=1)
+#define TRAP_END (rb_trap_immediate=0)
+
+EXTERN int rb_prohibit_interrupt;
+#define DEFER_INTS {rb_prohibit_interrupt++;}
+#define ALLOW_INTS {rb_prohibit_interrupt--; CHECK_INTS;}
+#define ENABLE_INTS {rb_prohibit_interrupt--;}
+
+VALUE rb_with_disable_interrupt _((VALUE(*)(),VALUE));
+
+EXTERN int rb_trap_pending;
+void rb_trap_restore_mask _((void));
+
+EXTERN int rb_thread_critical;
+void rb_thread_schedule _((void));
+#if defined(HAVE_SETITIMER) && !defined(__BOW__)
+EXTERN int rb_thread_pending;
+# define CHECK_INTS if (!rb_prohibit_interrupt) {\
+ if (rb_trap_pending) rb_trap_exec();\
+ if (rb_thread_pending && !rb_thread_critical) rb_thread_schedule();\
+}
+#else
+/* pseudo preemptive thread switching */
+EXTERN int rb_thread_tick;
+#define THREAD_TICK 500
+#define CHECK_INTS if (!rb_prohibit_interrupt) {\
+ if (rb_trap_pending) rb_trap_exec();\
+ if (!rb_thread_critical) {\
+ if (rb_thread_tick-- <= 0) {\
+ rb_thread_tick = THREAD_TICK;\
+ rb_thread_schedule();\
+ }\
+ }\
+}
+#endif
+
+#endif