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Import selfpipe code from skalibs 1.2.5

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[andersk@mit.edu: Move code to new third/libstddjb directory]
This commit is contained in:
Quentin Smith
2012-02-26 15:58:37 -05:00
committed by Keith Winstein
parent 9a3ab83783
commit 77f3a9073f
24 changed files with 697 additions and 0 deletions
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third/libstddjb/sig.h
+61
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/* ISC license. */
#ifndef SIG_H
#define SIG_H
#include <signal.h>
#include "gccattributes.h"
extern int sig_alarm gccattr_deprecated ;
extern int sig_child gccattr_deprecated ;
extern int sig_stop gccattr_deprecated ;
extern int sig_cont gccattr_deprecated ;
extern int sig_hangup gccattr_deprecated ;
extern int sig_int gccattr_deprecated ;
extern int sig_kill gccattr_deprecated ;
extern int sig_pipe gccattr_deprecated ;
extern int sig_term gccattr_deprecated ;
extern int sig_usr1 gccattr_deprecated ;
extern int sig_usr2 gccattr_deprecated ;
extern int sig_quit gccattr_deprecated ;
extern int sig_abort gccattr_deprecated ;
typedef void skasighandler_t (int) ;
typedef skasighandler_t *skasighandler_t_ref ;
struct skasigaction
{
skasighandler_t_ref handler ;
unsigned int flags : 2 ;
} ;
#define SKASA_MASKALL 0x01
#define SKASA_NOCLDSTOP 0x02
extern struct skasigaction const SKASIG_DFL ;
extern struct skasigaction const SKASIG_IGN ;
extern int skasigaction (int, struct skasigaction const *, struct skasigaction *) ;
#define sig_catcha(sig, ac) skasigaction(sig, (ac), 0)
#define sig_restore(sig) skasigaction((sig), &SKASIG_DFL, 0)
extern void sig_restoreto (sigset_t const *, unsigned int) ;
extern int sig_catch (int, skasighandler_t_ref) ;
#define sig_ignore(sig) sig_catcha((sig), &SKASIG_IGN)
#define sig_uncatch(sig) sig_restore(sig)
#define SIGSTACKSIZE 16
extern int sig_pusha (int, struct skasigaction const *) ;
extern int sig_pop (int) ;
extern int sig_push (int, skasighandler_t_ref) ;
extern void sig_block (int) ;
extern void sig_blockset (sigset_t const *) ;
extern void sig_unblock (int) ;
extern void sig_blocknone (void) ;
extern void sig_pause (void) ;
extern void sig_shield (void) ;
extern void sig_unshield (void) ;
#endif