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ruby--ruby/rubysig.h
uema2 b19e36a214 * configure.in, defines.h, dir.c, dir.h, dln.c, error.c,
eval.c, file.c, hash.c, io.c, main.c, missing.c,
      process.c, ruby.c, rubysig.h, signal.c, st.c, util.c, util.h,
      bcc/Makefile.sub, win32/Makefile.sub, win32/win32.h,
      ext/Win32API/Win32API.c, ext/socket/getaddrinfo.c,
      ext/socket/getnameinfo.c, ext/socket/socket.c,
      ext/tcltklib/stubs.c
      : replace "NT" with "_WIN32", add DOSISH_DRIVE_LETTER
* wince/exe.mak : delete \r at the end of lines.
* wince/mswince-ruby17.def : delete rb_obj_become


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3148 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2002-12-15 03:18:08 +00:00

99 lines
2.5 KiB
C

/**********************************************************************
rubysig.h -
$Author$
$Date$
created at: Wed Aug 16 01:15:38 JST 1995
Copyright (C) 1993-2002 Yukihiro Matsumoto
**********************************************************************/
#ifndef SIG_H
#define SIG_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_w32_enter_critical();\
statements;\
rb_w32_leave_critical();\
} 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
EXTERN rb_atomic_t rb_trap_immediate;
EXTERN int rb_prohibit_interrupt;
#define DEFER_INTS (rb_prohibit_interrupt++)
#define ALLOW_INTS do {\
rb_prohibit_interrupt--;\
CHECK_INTS;\
} while (0)
#define ENABLE_INTS (rb_prohibit_interrupt--)
VALUE rb_with_disable_interrupt _((VALUE(*)(ANYARGS),VALUE));
EXTERN rb_atomic_t 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 do {\
if (!rb_prohibit_interrupt) {\
if (rb_trap_pending) rb_trap_exec();\
if (rb_thread_pending && !rb_thread_critical)\
rb_thread_schedule();\
}\
} while (0)
#else
/* pseudo preemptive thread switching */
EXTERN int rb_thread_tick;
#define THREAD_TICK 500
#define CHECK_INTS do {\
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();\
}\
}\
}\
} while (0)
#endif
#endif