Libc-1082.50.1.tar.gz

[apple/libc.git] / include / signal.h

diff --git a/include/signal.h b/include/signal.h
index 89e08ca08aaaa1ffbe96d1b81d8509a3ffbbadcd..39dc6e044c64248096374d230784f2c9f0b7fb26 100644 (file)
--- a/include/signal.h
+++ b/include/signal.h
@@ -3,8 +3,6 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
@@ -60,16 +58,14 @@
 #ifndef _USER_SIGNAL_H
 #define _USER_SIGNAL_H
 
-#include <_types.h>
 #include <sys/cdefs.h>
+#include <_types.h>
 #include <sys/signal.h>
 
-#ifndef _PTHREAD_T_DECLARED
-typedef __osx_pthread_t                pthread_t;
-#define _PTHREAD_T_DECLARED
-#endif
+#include <sys/_pthread/_pthread_types.h>
+#include <sys/_pthread/_pthread_t.h>
 
-#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
 extern __const char *__const sys_signame[NSIG];
 extern __const char *__const sys_siglist[NSIG];
 #endif
@@ -81,14 +77,46 @@ __END_DECLS
 #ifndef        _ANSI_SOURCE
 __BEGIN_DECLS
 void   (*bsd_signal(int, void (*)(int)))(int);
-int    kill(pid_t, int);
-int    killpg(pid_t, int);
+//Begin-Libc
+#ifndef LIBC_ALIAS_KILL
+//End-Libc
+int    kill(pid_t, int) __DARWIN_ALIAS(kill);
+//Begin-Libc
+#else /* LIBC_ALIAS_KILL */
+int    kill(pid_t, int) LIBC_ALIAS(kill);
+#endif /* !LIBC_ALIAS_KILL */
+//End-Libc
+//Begin-Libc
+#ifndef LIBC_ALIAS_KILLPG
+//End-Libc
+int    killpg(pid_t, int) __DARWIN_ALIAS(killpg);
+//Begin-Libc
+#else /* LIBC_ALIAS_KILLPG */
+int    killpg(pid_t, int) LIBC_ALIAS(killpg);
+#endif /* !LIBC_ALIAS_KILLPG */
+//End-Libc
 int    pthread_kill(pthread_t, int);
-int    pthread_sigmask(int, const sigset_t *, sigset_t *);
+//Begin-Libc
+#ifndef LIBC_ALIAS_PTHREAD_SIGMASK
+//End-Libc
+int    pthread_sigmask(int, const sigset_t *, sigset_t *) __DARWIN_ALIAS(pthread_sigmask);
+//Begin-Libc
+#else /* LIBC_ALIAS_PTHREAD_SIGMASK */
+int    pthread_sigmask(int, const sigset_t *, sigset_t *) LIBC_ALIAS(pthread_sigmask);
+#endif /* !LIBC_ALIAS_PTHREAD_SIGMASK */
+//End-Libc
 int    sigaction(int, const struct sigaction * __restrict,
            struct sigaction * __restrict);
 int    sigaddset(sigset_t *, int);
-int    sigaltstack(const stack_t * __restrict, stack_t * __restrict);
+//Begin-Libc
+#ifndef LIBC_ALIAS_SIGALTSTACK
+//End-Libc
+int    sigaltstack(const stack_t * __restrict, stack_t * __restrict)  __DARWIN_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
+//Begin-Libc
+#else /* LIBC_ALIAS_SIGALTSTACK */
+int    sigaltstack(const stack_t * __restrict, stack_t * __restrict)  LIBC_ALIAS(sigaltstack) __WATCHOS_PROHIBITED __TVOS_PROHIBITED;
+#endif /* !LIBC_ALIAS_SIGALTSTACK */
+//End-Libc
 int    sigdelset(sigset_t *, int);
 int    sigemptyset(sigset_t *);
 int    sigfillset(sigset_t *);
@@ -96,27 +124,62 @@ int        sighold(int);
 int    sigignore(int);
 int    siginterrupt(int, int);
 int    sigismember(const sigset_t *, int);
-int    sigpause(int);
+//Begin-Libc
+#ifndef LIBC_ALIAS_SIGPAUSE
+//End-Libc
+int    sigpause(int) __DARWIN_ALIAS_C(sigpause);
+//Begin-Libc
+#else /* LIBC_ALIAS_SIGPAUSE */
+int    sigpause(int) LIBC_ALIAS_C(sigpause);
+#endif /* !LIBC_ALIAS_SIGPAUSE */
+//End-Libc
 int    sigpending(sigset_t *);
 int    sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
 int    sigrelse(int);
-int    sigsuspend(const sigset_t *);
-int    sigwait(const sigset_t * __restrict, int * __restrict);
-#ifndef _POSIX_SOURCE
+void    (*sigset(int, void (*)(int)))(int);
+//Begin-Libc
+#ifndef LIBC_ALIAS_SIGSUSPEND
+//End-Libc
+int    sigsuspend(const sigset_t *) __DARWIN_ALIAS_C(sigsuspend);
+//Begin-Libc
+#else /* LIBC_ALIAS_SIGSUSPEND */
+int    sigsuspend(const sigset_t *) LIBC_ALIAS_C(sigsuspend);
+#endif /* !LIBC_ALIAS_SIGSUSPEND */
+//End-Libc
+//Begin-Libc
+#ifndef LIBC_ALIAS_SIGWAIT
+//End-Libc
+int    sigwait(const sigset_t * __restrict, int * __restrict) __DARWIN_ALIAS_C(sigwait);
+//Begin-Libc
+#else /* LIBC_ALIAS_SIGWAIT */
+int    sigwait(const sigset_t * __restrict, int * __restrict) LIBC_ALIAS_C(sigwait);
+#endif /* !LIBC_ALIAS_SIGWAIT */
+//End-Libc
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 void   psignal(unsigned int, const char *);
 int    sigblock(int);
-int    sigreturn(struct sigcontext *);
 int    sigsetmask(int);
 int    sigvec(int, struct sigvec *, struct sigvec *);
-#endif /* !_POSIX_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 __END_DECLS
 
 /* List definitions after function declarations, or Reiser cpp gets upset. */
-#define        sigaddset(set, signo)   (*(set) |= 1 << ((signo) - 1), 0)
-#define        sigdelset(set, signo)   (*(set) &= ~(1 << ((signo) - 1)), 0)
+#if defined(__i386__) || defined(__x86_64__)
+/* The left shift operator on intel is modulo 32 */
+__header_always_inline int
+__sigbits(int __signo)
+{
+    return __signo > __DARWIN_NSIG ? 0 : (1 << (__signo - 1));
+}
+#else /* !__i386__ && !__x86_64__ */
+#define __sigbits(signo)       (1 << ((signo) - 1))
+#endif /* __i386__ || __x86_64__ */
+
+#define        sigaddset(set, signo)   (*(set) |= __sigbits(signo), 0)
+#define        sigdelset(set, signo)   (*(set) &= ~__sigbits(signo), 0)
+#define        sigismember(set, signo) ((*(set) & __sigbits(signo)) != 0)
 #define        sigemptyset(set)        (*(set) = 0, 0)
 #define        sigfillset(set)         (*(set) = ~(sigset_t)0, 0)
-#define        sigismember(set, signo) ((*(set) & (1 << ((signo) - 1))) != 0)
 #endif /* !_ANSI_SOURCE */
 
 #endif /* !_USER_SIGNAL_H */