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Clear pending signals targeting exiting thread

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* cygtls.cc (_cygtls::remove): Call remove_pending_sigs.
	* cygtls.h (_cygtls::remove_pending_sigs): Declare.
	* sigproc.cc (pending_signals::clear): Define new method taking a
	_cygtls pointer argument.  Drop pending signals for that thread.
	(_cygtls::remove_pending_sigs): Call pending_signals::clear for this
	thread.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2015-10-23 14:30:40 +02:00
parent 505812d042
commit cf51db8baa
4 changed files with 30 additions and 1 deletions
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20
winsup/cygwin/sigproc.cc
View File

@ -79,7 +79,8 @@ public:
void add (sigpacket&);
bool pending () {retry = true; return !!start.next;}
void clear (int sig) {sigs[sig].si.si_signo = 0;}
friend void __reg1 sig_dispatch_pending (bool);;
void clear (_cygtls *tls);
friend void __reg1 sig_dispatch_pending (bool);
friend void WINAPI wait_sig (VOID *arg);
friend void sigproc_init ();
};
@ -397,6 +398,23 @@ sig_clear (int sig)
sigq.clear (sig);
}
/* Clear pending signals of specific thread. Called from
_cygtls::remove_pending_sigs. */
void
pending_signals::clear (_cygtls *tls)
{
for (int sig = 0; sig < NSIG + 1; ++sig)
if (sigs[sig].sigtls == tls)
clear (sig);
}
/* Clear pending signals of specific thread. Called from _cygtls::remove */
void
_cygtls::remove_pending_sigs ()
{
sigq.clear (this);
}
extern "C" int
sigpending (sigset_t *mask)
{