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* cygwait.cc (cancelable_wait): Add some debugging-only output.

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* exceptions.cc (sig_handle_tty_stop): Make sure that incyg is cleared when
exiting if we have no parent process.  Only wait for signal_arrived.
(sigpacket::process): Make continue_now a bool.  Delay sending signal_arrived
until the end.  Make code more defensive to avoid calling signal handler when
stopped.  Only set signal_arrived when stopped.
* sigproc.cc (sig_hold): Rename from sigCONT.  Make static.
(sig_send): Accommodate sigCONT -> sig_hold rename.
(wait_sig): Ditto.
* sigproc.h (sigCONT): Delete declaration.
* fhandler_console.cc (fhandler_console::write): Use new '%0c' facility to
print characters.  Change to paranoid to avoid excessive strace output.
* fhandler_tty.cc (fhandler_pty_master::accept_input): Make frequent strace
printf "paranoid" to help cut down on strace output size.
* signal.cc (sigsuspend): Add standard syscall strace output.
(sigpause): Ditto.
(pause): Ditto.
* cygtls.h (_cygtls::reset_signal_arrived): New function.
This commit is contained in:
Christopher Faylor
2012-07-30 03:44:40 +00:00
parent c1a11ccfca
commit d239805457
8 changed files with 75 additions and 48 deletions
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9
winsup/cygwin/sigproc.cc
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@@ -46,8 +46,7 @@ char NO_COPY myself_nowait_dummy[1] = {'0'};// Flag to sig_send that signal goes
#define Static static NO_COPY
HANDLE NO_COPY sigCONT; // Used to "STOP" a process
Static HANDLE sig_hold; // Used to stop signal processing
Static bool sigheld; // True if holding signals
Static int nprocs; // Number of deceased children
@@ -568,7 +567,7 @@ sig_send (_pinfo *p, int sig)
return 0;
else if (sig == __SIGNOHOLD || sig == __SIGEXIT)
{
SetEvent (sigCONT);
SetEvent (sig_hold);
sigheld = false;
}
else if (&_my_tls == _main_tls)
@@ -1345,7 +1344,7 @@ static void WINAPI
wait_sig (VOID *)
{
_sig_tls = &_my_tls;
sigCONT = CreateEvent (&sec_none_nih, FALSE, FALSE, NULL);
sig_hold = CreateEvent (&sec_none_nih, FALSE, FALSE, NULL);
sigproc_printf ("entering ReadFile loop, my_readsig %p, my_sendsig %p",
my_readsig, my_sendsig);
@@ -1355,7 +1354,7 @@ wait_sig (VOID *)
for (;;)
{
if (pack.si.si_signo == __SIGHOLD)
WaitForSingleObject (sigCONT, INFINITE);
WaitForSingleObject (sig_hold, INFINITE);
DWORD nb;
pack.tls = NULL;
if (!ReadFile (my_readsig, &pack, sizeof (pack), &nb, NULL))