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authorDenis Vlasenko <vda.linux@googlemail.com>2008-12-15 09:29:33 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2008-12-15 09:29:33 +0000
commit885f507317b6c8576ba2e298c2249d27ea6f8404 (patch)
tree6d9a70d14c2f21d85538a023c7e2e863245c49e6 /include/signal.h
parent1cfb1a324798f6ed03e49813d8dfe6b28dfb9c4f (diff)
sigaction overhaul as described in docs/sigaction.txt
Run tested on i386.
Diffstat (limited to 'include/signal.h')
-rw-r--r--include/signal.h33
1 files changed, 22 insertions, 11 deletions
diff --git a/include/signal.h b/include/signal.h
index 2946f9c5f..c2b8b7476 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -56,13 +56,23 @@ typedef __sigset_t sigset_t;
#include <bits/types.h>
#include <bits/signum.h>
+//TODO vda: pull out of bits/signum.h the following,
+//which is the same for all arches:
+//#define SIG_ERR ((__sighandler_t) -1) /* Error return. */
+//#define SIG_DFL ((__sighandler_t) 0) /* Default action. */
+//#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */
+//#ifdef __USE_UNIX98
+//# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */
+//#endif
+//#define SIGRTMIN (__libc_current_sigrtmin())
+//#define SIGRTMAX (__libc_current_sigrtmax())
+//#define __SIGRTMIN -- dont pull, it's arch specific
+//#define __SIGRTMAX (_NSIG - 1)
#if defined __USE_XOPEN || defined __USE_XOPEN2K
# ifndef __pid_t_defined
typedef __pid_t pid_t;
# define __pid_t_defined
-#endif
-#ifdef __USE_XOPEN
# endif
# ifndef __uid_t_defined
typedef __uid_t uid_t;
@@ -79,10 +89,10 @@ typedef void (*__sighandler_t) (int);
requested. */
extern __sighandler_t __sysv_signal (int __sig, __sighandler_t __handler)
__THROW;
-#ifdef __USE_GNU
+# ifdef __USE_GNU
extern __sighandler_t sysv_signal (int __sig, __sighandler_t __handler)
__THROW;
-#endif
+# endif
#endif /* __UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL__ */
/* Set the handler for the signal SIG to HANDLER, returning the old
@@ -118,14 +128,14 @@ extern __sighandler_t bsd_signal (int __sig, __sighandler_t __handler)
#ifdef __USE_POSIX
extern int kill (__pid_t __pid, int __sig) __THROW;
libc_hidden_proto(kill)
-#endif /* Use POSIX. */
+#endif
#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
/* Send SIG to all processes in process group PGRP.
If PGRP is zero, send SIG to all processes in
the current process's process group. */
extern int killpg (__pid_t __pgrp, int __sig) __THROW;
-#endif /* Use BSD || X/Open Unix. */
+#endif
__BEGIN_NAMESPACE_STD
/* Raise signal SIG, i.e., send SIG to yourself. */
@@ -195,8 +205,9 @@ extern int siggetmask (void) __THROW __attribute_deprecated__;
#endif /* Use BSD. */
+/* Biggest signal number + 1 (including real-time signals). */
#ifdef __USE_MISC
-# define NSIG _NSIG
+# define NSIG _NSIG
#endif
#ifdef __USE_GNU
@@ -316,12 +327,12 @@ extern int sigqueue (__pid_t __pid, int __sig, __const union sigval __val)
#ifdef __USE_BSD
-#ifdef __UCLIBC_HAS_SYS_SIGLIST__
+# ifdef __UCLIBC_HAS_SYS_SIGLIST__
/* Names of the signals. This variable exists only for compatibility.
Use `strsignal' instead (see <string.h>). */
-#define _sys_siglist sys_siglist
+# define _sys_siglist sys_siglist
extern __const char *__const sys_siglist[_NSIG];
-#endif /* __UCLIBC_HAS_SYS_SIGLIST__ */
+# endif
/* Structure passed to `sigvec'. */
struct sigvec
@@ -404,7 +415,7 @@ extern __sighandler_t sigset (int __sig, __sighandler_t __disp) __THROW;
be defined here. */
# include <bits/pthreadtypes.h>
# include <bits/sigthread.h>
-#endif /* use Unix98 */
+#endif
/* The following functions are used internally in the C library and in
other code which need deep insights. */