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* exceptions.cc (try_to_debug): Don't use yield() when waiting for another 

process.
(sigpacket::setup_handler): Fix long-standing problem where loop could exit
with lock held.
This commit is contained in:
Christopher Faylor 2013-06-08 16:54:41 +00:00
parent 1952976a1b
commit 62003f180a
2 changed files with 13 additions and 2 deletions
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7
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,10 @@
2013-06-08 Christopher Faylor <me.cygwin2013@cgf.cx>
* exceptions.cc (try_to_debug): Don't use yield() when waiting for
another process.
(sigpacket::setup_handler): Fix long-standing problem where loop could
exit with lock held.
2013-06-08 Christopher Faylor <me.cygwin2013@cgf.cx> 2013-06-08 Christopher Faylor <me.cygwin2013@cgf.cx>
* miscfuncs.cc (yield): Revert (after researching) to calling SleepEx * miscfuncs.cc (yield): Revert (after researching) to calling SleepEx

6
winsup/cygwin/exceptions.cc
View File

@ -508,7 +508,7 @@ try_to_debug (bool waitloop)
return dbg; return dbg;
SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_IDLE); SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_IDLE);
while (!being_debugged ()) while (!being_debugged ())
yield (); Sleep (1);
Sleep (2000); Sleep (2000);
} }
@ -923,7 +923,10 @@ sigpacket::setup_handler (void *handler, struct sigaction& siga, _cygtls *tls)
DWORD res; DWORD res;
HANDLE hth = (HANDLE) *tls; HANDLE hth = (HANDLE) *tls;
if (!hth) if (!hth)
{
tls->unlock ();
sigproc_printf ("thread handle NULL, not set up yet?"); sigproc_printf ("thread handle NULL, not set up yet?");
}
else else
{ {
/* Suspend the thread which will receive the signal. /* Suspend the thread which will receive the signal.
@ -936,6 +939,7 @@ sigpacket::setup_handler (void *handler, struct sigaction& siga, _cygtls *tls)
/* Just set pending if thread is already suspended */ /* Just set pending if thread is already suspended */
if (res) if (res)
{ {
tls->unlock ();
ResumeThread (hth); ResumeThread (hth);
goto out; goto out;
} }