1 files changed, 93 insertions, 0 deletions
diff --git a/include/ruby/signal.h b/include/ruby/signal.h
new file mode 100644
index 0000000000..29ffcd9f11
--- /dev/null
+++ b/include/ruby/signal.h
@@ -0,0 +1,93 @@
+/**********************************************************************
+
+  rubysig.h -
+
+  $Author$
+  $Date$
+  created at: Wed Aug 16 01:15:38 JST 1995
+
+  Copyright (C) 1993-2003 Yukihiro Matsumoto
+
+**********************************************************************/
+
+#ifndef RUBYSIG_H
+#define RUBYSIG_H 1
+
+#if defined(__cplusplus)
+extern "C" {
+#if 0
+} /* satisfy cc-mode */
+#endif
+#endif
+
+#include <errno.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))
+
+/* Windows doesn't allow interrupt while system calls */
+# define TRAP_BEG do {\
+    rb_atomic_t trap_immediate = ATOMIC_SET(rb_trap_immediate, 1)
+
+# define TRAP_END\
+    ATOMIC_SET(rb_trap_immediate, trap_immediate);\
+} while (0)
+
+# define RUBY_CRITICAL(statements) do {\
+    rb_atomic_t trap_immediate = ATOMIC_SET(rb_trap_immediate, 0);\
+    statements;\
+    ATOMIC_SET(rb_trap_immediate, trap_immediate);\
+} while (0)
+#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))
+
+# define TRAP_BEG do {\
+    int trap_immediate = rb_trap_immediate;\
+    rb_trap_immediate = 1
+
+# define TRAP_END \
+    rb_trap_immediate = trap_immediate;\
+} while (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
+RUBY_EXTERN rb_atomic_t rb_trap_immediate;
+
+RUBY_EXTERN int rb_prohibit_interrupt;
+#define DEFER_INTS (rb_prohibit_interrupt++)
+#define ALLOW_INTS do {\
+    rb_prohibit_interrupt--;\
+} while (0)
+#define ENABLE_INTS (rb_prohibit_interrupt--)
+
+VALUE rb_with_disable_interrupt(VALUE(*)(ANYARGS),VALUE);
+
+RUBY_EXTERN rb_atomic_t rb_trap_pending;
+void rb_trap_restore_mask(void);
+
+RUBY_EXTERN int rb_thread_critical;
+void rb_thread_schedule(void);
+
+#if defined(__cplusplus)
+#if 0
+{ /* satisfy cc-mode */
+#endif
+}  /* extern "C" { */
+#endif
+
+#endif /* RUBYSIG_H */