diff options
Diffstat (limited to 'sysdeps/posix/sigpause.c')
| -rw-r--r-- | sysdeps/posix/sigpause.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/sysdeps/posix/sigpause.c b/sysdeps/posix/sigpause.c index 020a46b..b3eec8f 100644 --- a/sysdeps/posix/sigpause.c +++ b/sysdeps/posix/sigpause.c @@ -22,25 +22,35 @@ /* Set the mask of blocked signals to MASK, wait for a signal to arrive, and then restore the mask. */ int -__sigpause (mask) - int mask; +__sigpause (sig_or_mask, is_sig) + int sig_or_mask; + int is_sig; { sigset_t set; int sig; - if (__sigemptyset (&set) < 0) - return -1; - - if (sizeof (mask) == sizeof (set)) - *(int *) &set = mask; - else if (sizeof (unsigned long int) == sizeof (set)) - *(unsigned long int *) &set = (unsigned int) mask; + if (is_sig != 0) + { + /* The modern X/Open implementation is requested. */ + if (sigprocmask (0, NULL, &set) < 0 + /* Yes, we call `sigaddset' and not `__sigaddset'. */ + || sigaddset (&set, sig_or_mask) < 0) + return -1; + } else - for (sig = 1; sig < NSIG; ++sig) - if ((mask & sigmask (sig)) && __sigaddset (&set, sig) < 0) + { + if (__sigemptyset (&set) < 0) return -1; + if (sizeof (sig_or_mask) == sizeof (set)) + *(int *) &set = sig_or_mask; + else if (sizeof (unsigned long int) == sizeof (set)) + *(unsigned long int *) &set = (unsigned int) sig_or_mask; + else + for (sig = 1; sig < NSIG; ++sig) + if ((sig_or_mask & sigmask (sig)) && __sigaddset (&set, sig) < 0) + return -1; + } + return sigsuspend (&set); } - -weak_alias (__sigpause, sigpause) |