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* autoload.cc (LoadDLLinitfunc): Remove debugging statement.

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* exceptions.cc (sig_handle_tty_stop): Move setting of PID_STOPPED to earlier
in interrupt.
((interrupt_setup): i.e., here.
(sig_handle): Don't queue multiple SIGSTOPS.
* fhandler.h (bg_check_types): Enumerate return value of bg_check for clarity.
* signal.cc (kill_pgrp): Minor cleanup.
* fhandler_termios.cc (fhandler_termios::bg_check): Use enumerated type for
function return.  Don't raise signal if a signal is already queued.
* fhandler_console.cc (fhandler_console::read): Use enumerated return type for
bg_check.
* select.cc: Ditto, throughout.
* read.cc: Ditto, throughout.
* termios.cc: Ditto, throughout.
(_read): YA interrupt detect simplification.
* wait.cc (wait4): Ditto.
This commit is contained in:
Christopher Faylor
2001-01-17 14:57:09 +00:00
parent cb503978ab
commit a7cde2b98a
13 changed files with 109 additions and 65 deletions
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54
winsup/cygwin/exceptions.cc
View File

@ -585,6 +585,27 @@ handle_sigsuspend (sigset_t tempmask)
extern DWORD exec_exit; // Possible exit value for exec
extern int pending_signals;
extern "C" {
static void
sig_handle_tty_stop (int sig)
{
myself->stopsig = sig;
/* See if we have a living parent. If so, send it a special signal.
* It will figure out exactly which pid has stopped by scanning
* its list of subprocesses.
*/
if (my_parent_is_alive ())
{
pinfo parent (myself->ppid);
sig_send (parent, __SIGCHILDSTOPPED);
}
sigproc_printf ("process %d stopped by signal %d, myself->ppid_handle %p",
myself->pid, sig, myself->ppid_handle);
SuspendThread (hMainThread);
return;
}
}
int
interruptible (DWORD pc, int testvalid = 0)
{
@ -639,6 +660,11 @@ interrupt_setup (int sig, void *handler, DWORD retaddr, DWORD *retaddr_on_stack,
sigsave.func = (void (*)(int)) handler;
sigsave.sig = sig;
sigsave.saved_errno = -1; // Flag: no errno to save
if (handler == sig_handle_tty_stop)
{
myself->stopsig = 0;
myself->process_state |= PID_STOPPED;
}
}
static bool interrupt_now (CONTEXT *, int, void *, struct sigaction&) __attribute__((regparm(3)));
@ -890,29 +916,6 @@ set_process_mask (sigset_t newmask)
return;
}
extern "C" {
static void
sig_handle_tty_stop (int sig)
{
myself->stopsig = sig;
myself->process_state |= PID_STOPPED;
/* See if we have a living parent. If so, send it a special signal.
* It will figure out exactly which pid has stopped by scanning
* its list of subprocesses.
*/
if (my_parent_is_alive ())
{
pinfo parent (myself->ppid);
sig_send (parent, __SIGCHILDSTOPPED);
}
sigproc_printf ("process %d stopped by signal %d, myself->ppid_handle %p",
myself->pid, sig, myself->ppid_handle);
/* There is a small race here with the above two mutexes */
SuspendThread (hMainThread);
return;
}
}
int __stdcall
sig_handle (int sig)
{
@ -988,12 +991,15 @@ sig_handle (int sig)
goto dosig;
stop:
/* Eat multiple attempts to STOP */
if (ISSTATE (myself, PID_STOPPED))
goto done;
handler = (void *) sig_handle_tty_stop;
thissig = myself->getsig (SIGSTOP);
dosig:
/* Dispatch to the appropriate function. */
sigproc_printf ("signal %d, about to call %p", sig, thissig.sa_handler);
sigproc_printf ("signal %d, about to call %p", sig, handler);
rc = call_handler (sig, handler, thissig);
done: