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Make sigispending() return the signal that is pending, or 0. Fix the comment

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that said that it returns true or false (it returned EINTR or 0 before).
Perhaps we should rename the function now?
This commit is contained in:
christos 2011-08-31 16:05:44 +00:00
parent 8cdc46a4a4
commit 0330b42b89
1 changed files with 9 additions and 9 deletions
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18
sys/kern/kern_sig.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_sig.c,v 1.310 2011/07/27 13:45:49 uebayasi Exp $ */
/* $NetBSD: kern_sig.c,v 1.311 2011/08/31 16:05:44 christos Exp $ */
/*-
* Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
@ -70,7 +70,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_sig.c,v 1.310 2011/07/27 13:45:49 uebayasi Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_sig.c,v 1.311 2011/08/31 16:05:44 christos Exp $");
#include "opt_ptrace.h"
#include "opt_compat_sunos.h"
@ -688,10 +688,10 @@ sigclearall(struct proc *p, const sigset_t *mask, ksiginfoq_t *kq)
/*
* sigispending:
*
* Return true if there are pending signals for the current LWP. May
* be called unlocked provided that LW_PENDSIG is set, and that the
* signal has been posted to the appopriate queue before LW_PENDSIG is
* set.
* Return the first signal number if there are pending signals for the
* current LWP. May be called unlocked provided that LW_PENDSIG is set,
* and that the signal has been posted to the appopriate queue before
* LW_PENDSIG is set.
*/
int
sigispending(struct lwp *l, int signo)
@ -707,10 +707,10 @@ sigispending(struct lwp *l, int signo)
sigminusset(&l->l_sigmask, &tset);
if (signo == 0) {
if (firstsig(&tset) != 0)
return EINTR;
if ((signo = firstsig(&tset)) != 0)
return signo;
} else if (sigismember(&tset, signo))
return EINTR;
return signo;
return 0;
}