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* exceptions.cc (call_handler): Use new muto linked list to look for all

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potential mutos owned by suspended thread.  Clear waiting threads while thread
is stopped.
(proc_subproc): Clarify debugging output.
* sync.h (class muto): Add 'next' field.
(new_muto): Keep linked list alive.
This commit is contained in:
Christopher Faylor
2000-02-24 19:54:01 +00:00
parent 4bc3b73cfd
commit d3bda1df95
5 changed files with 36 additions and 12 deletions
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18
winsup/cygwin/exceptions.cc
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@ -713,7 +713,6 @@ call_handler (int sig, struct sigaction& siga, void *handler)
CONTEXT *cx, orig;
int interrupted = 1;
int res;
extern muto *sync_proc_subproc;
if (hExeced != NULL && hExeced != INVALID_HANDLE_VALUE)
{
@ -743,10 +742,13 @@ call_handler (int sig, struct sigaction& siga, void *handler)
goto set_pending;
/* FIXME: Make multi-thread aware */
if (!sync_proc_subproc->unstable () && sync_proc_subproc->owner () != maintid &&
!mask_sync->unstable () && mask_sync->owner () != maintid)
break;
for (muto *m = muto_start.next; m != NULL; m = m->next)
if (m->unstable () || m->owner () == maintid)
goto keep_looping;
break;
keep_looping:
ResumeThread (hth);
Sleep (0);
}
@ -781,12 +783,16 @@ call_handler (int sig, struct sigaction& siga, void *handler)
interrupted = 0;
}
(void) ResumeThread (hth);
if (interrupted)
{
/* Clear any waiting threads prior to dispatching to handler function */
proc_subproc(PROC_CLEARWAIT, 1);
}
(void) ResumeThread (hth);
if (interrupted)
{
/* Apparently we have to set signal_arrived after resuming the thread or it
is possible that the event will be ignored. */
(void) SetEvent (signal_arrived); // For an EINTR case