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* cygwin.din: Export sigignore and sigset.

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* exceptions.cc (sigset): New function.
	(sigignore): New function.
	* include/cygwin/signal.h (SIG_HOLD): Define.
	(sigignore): Declare.
	(sigset): Declare.
	* include/cygwin/version.h: Bump API minor number to 154.
This commit is contained in:
Corinna Vinschen
2006-02-16 18:21:49 +00:00
parent df4f13b723
commit c6e48b1cd1
5 changed files with 63 additions and 1 deletions
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44
winsup/cygwin/exceptions.cc
View File

@ -1021,6 +1021,50 @@ sigrelse (int sig)
return 0;
}
extern "C" _sig_func_ptr
sigset (int sig, _sig_func_ptr func)
{
sig_dispatch_pending ();
_sig_func_ptr prev;
/* check that sig is in right range */
if (sig < 0 || sig >= NSIG || sig == SIGKILL || sig == SIGSTOP)
{
set_errno (EINVAL);
syscall_printf ("SIG_ERR = sigset (%d, %p)", sig, func);
return (_sig_func_ptr) SIG_ERR;
}
mask_sync.acquire (INFINITE);
sigset_t mask = myself->getsigmask ();
/* If sig was in the signal mask return SIG_HOLD, otherwise return the
previous disposition. */
if (sigismember (&mask, sig))
prev = SIG_HOLD;
else
prev = global_sigs[sig].sa_handler;
/* If func is SIG_HOLD, add sig to the signal mask, otherwise set the
disposition to func and remove sig from the signal mask. */
if (func == SIG_HOLD)
sigaddset (&mask, sig);
else
{
/* No error checking. The test which could return SIG_ERR has already
been made above. */
signal (sig, func);
sigdelset (&mask, sig);
}
set_signal_mask (mask, myself->getsigmask ());
mask_sync.release ();
return prev;
}
extern "C" int
sigignore (int sig)
{
return sigset (sig, SIG_IGN) == SIG_ERR ? -1 : 0;
}
/* Update the signal mask for this process and return the old mask.
Called from sigdelayed */
extern "C" sigset_t