JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

* exceptions.cc (setup_handler): Signal event for any sigwaitinfo if it exists

Browse Source 
to force signal to be handled.  Zero event here to prevent races.
* signal.cc (sigwaitinfo): Use local handle value for everything since signal
thread could zero event element at any time.  Detect when awaking due to thread
not in mask and set return value and errno accordingly.  Don't set signal
number to zero unless we've recognized the signal.
* sigproc.cc (sigq): Rename from sigqueue throughout.
* thread.cc (pthread::join): Handle signals received while waiting for thread
to terminate.
* cygwin.din: Export sighold, sigqueue.
* exceptions.cc (sighold): Define new function.
* signal.cc (handle_sigprocmask): Set correct errno for invalid signal.
Simplify debugging output.
(sigqueue): Define new function.
* include/cygwin/signal.h (sighold): Declare new function.
(sigqueue): Ditto.
* include/cygwin/version.h: Bump API minor version number.
* include/limits.h (TIMER_MAX): Define.
(_POSIX_TIMER_MAX): Ditto.
This commit is contained in:
Christopher Faylor
2004-02-26 05:10:49 +00:00
parent f9e19c0931
commit ca713cfab3
9 changed files with 137 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
winsup/cygwin/sigproc.cc
View File

@@ -66,7 +66,7 @@ public:
friend void __stdcall sig_dispatch_pending (bool);
};
static pending_signals sigqueue;
static pending_signals sigq;
struct sigaction *global_sigs;
@@ -537,15 +537,15 @@ sig_clear (int target_sig)
else
{
sigpacket *q;
sigpacket *save = sigqueue.save ();
sigqueue.reset ();
while ((q = sigqueue.next ()))
sigpacket *save = sigq.save ();
sigq.reset ();
while ((q = sigq.next ()))
if (q->si.si_signo == target_sig)
{
q->si.si_signo = __SIGDELETE;
break;
}
sigqueue.restore (save);
sigq.restore (save);
}
return;
}
@@ -564,11 +564,11 @@ sigpending (sigset_t *mask)
void __stdcall
sig_dispatch_pending (bool fast)
{
if (exit_state || GetCurrentThreadId () == sigtid || !sigqueue.start.next)
if (exit_state || GetCurrentThreadId () == sigtid || !sigq.start.next)
{
#ifdef DEBUGGING
sigproc_printf ("exit_state %d, cur thread id %p, sigtid %p, sigqueue.start.next %p",
exit_state, GetCurrentThreadId (), sigtid, sigqueue.start.next);
sigproc_printf ("exit_state %d, cur thread id %p, sigtid %p, sigq.start.next %p",
exit_state, GetCurrentThreadId (), sigtid, sigq.start.next);
#endif
return;
}
@@ -1156,17 +1156,17 @@ wait_sig (VOID *self)
case __SIGPENDING:
*pack.mask = 0;
unsigned bit;
sigqueue.reset ();
while ((q = sigqueue.next ()))
sigq.reset ();
while ((q = sigq.next ()))
if (myself->getsigmask () & (bit = SIGTOMASK (q->si.si_signo)))
*pack.mask |= bit;
break;
case __SIGFLUSH:
case __SIGFLUSHFAST:
sigqueue.reset ();
while ((q = sigqueue.next ()))
sigq.reset ();
while ((q = sigq.next ()))
if (q->si.si_signo == __SIGDELETE || q->process () > 0)
sigqueue.del ();
sigq.del ();
break;
default:
if (pack.si.si_signo < 0)
@@ -1181,7 +1181,7 @@ wait_sig (VOID *self)
if (!sigres)
system_printf ("Failed to arm signal %d from pid %d", pack.sig, pack.pid);
#endif
sigqueue.add (pack); // FIXME: Shouldn't add this in !sh condition
sigq.add (pack); // FIXME: Shouldn't add this in !sh condition
}
if (sig == SIGCHLD)
proc_subproc (PROC_CLEARWAIT, 0);