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* cygtls.h (_cygtls::get_signal_arrived): Add parameter to make lock/unlock

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conditional.
* exceptions.cc (_cygtls::interrupt_setup): Don't get a lock when setting
signal_arrived since we already have one.
* gendef: Add some comments to make it easier to find functions.
This commit is contained in:
Christopher Faylor 2012-12-07 17:23:22 +00:00
parent a4f34961d8
commit 9873ac53d7
4 changed files with 16 additions and 4 deletions
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8
winsup/cygwin/ChangeLog
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@ -1,3 +1,11 @@
2012-12-07 Christopher Faylor <me.cygwin2012@cgf.cx>
* cygtls.h (_cygtls::get_signal_arrived): Add parameter to make
lock/unlock conditional.
* exceptions.cc (_cygtls::interrupt_setup): Don't get a lock when
setting signal_arrived since we already have one.
* gendef: Add some comments to make it easier to find functions.
2012-12-06 Yaakov Selkowitz <yselkowitz@users.sourceforge.net> 2012-12-06 Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
* include/cygwin/wait.h (WAIT_ANY): Define. * include/cygwin/wait.h (WAIT_ANY): Define.

8
winsup/cygwin/cygtls.h
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@ -233,14 +233,16 @@ public:
void lock () __attribute__ ((regparm (1))); void lock () __attribute__ ((regparm (1)));
void unlock () __attribute__ ((regparm (1))); void unlock () __attribute__ ((regparm (1)));
bool locked () __attribute__ ((regparm (1))); bool locked () __attribute__ ((regparm (1)));
HANDLE get_signal_arrived () HANDLE get_signal_arrived (bool wait_for_lock = true)
{ {
if (!signal_arrived) if (!signal_arrived)
{ {
lock (); if (wait_for_lock)
lock ();
if (!signal_arrived) if (!signal_arrived)
signal_arrived = CreateEvent (&sec_none_nih, false, false, NULL); signal_arrived = CreateEvent (&sec_none_nih, false, false, NULL);
unlock (); if (wait_for_lock)
unlock ();
} }
return signal_arrived; return signal_arrived;
} }

2
winsup/cygwin/exceptions.cc
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@ -799,7 +799,7 @@ _cygtls::interrupt_setup (siginfo_t& si, void *handler, struct sigaction& siga)
this->sig = si.si_signo; // Should always be last thing set to avoid a race this->sig = si.si_signo; // Should always be last thing set to avoid a race
if (incyg) if (incyg)
SetEvent (get_signal_arrived ()); SetEvent (get_signal_arrived (false));
proc_subproc (PROC_CLEARWAIT, 1); proc_subproc (PROC_CLEARWAIT, 1);
sigproc_printf ("armed signal_arrived %p, signal %d", signal_arrived, si.si_signo); sigproc_printf ("armed signal_arrived %p, signal %d", signal_arrived, si.si_signo);

2
winsup/cygwin/gendef
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@ -218,6 +218,7 @@ __ZN7_cygtls3popEv:
popl %ebx popl %ebx
ret ret
# _cygtls::lock
.global __ZN7_cygtls4lockEv .global __ZN7_cygtls4lockEv
__ZN7_cygtls4lockEv: __ZN7_cygtls4lockEv:
pushl %ebx pushl %ebx
@ -231,6 +232,7 @@ __ZN7_cygtls4lockEv:
2: popl %ebx 2: popl %ebx
ret ret
# _cygtls::unlock
.global __ZN7_cygtls6unlockEv .global __ZN7_cygtls6unlockEv
__ZN7_cygtls6unlockEv: __ZN7_cygtls6unlockEv:
decl $tls::pstacklock(%eax) decl $tls::pstacklock(%eax)