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(make_lispy_event): Use find_user_signal_name.

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(read_avail_input): Store pending user signal events.
(struct user_signal_info): New struct.
(user_signals): New variable.
(add_user_signal, store_user_signal_events find_user_signal_name):
New functions.
(handle_user_signal): Move function from emacs.c.  Don't store
USER_SIGNAL_EVENT here, but increment number of pending signals.
This commit is contained in:
YAMAMOTO Mitsuharu 2006-12-14 08:41:46 +00:00
parent 511268f550
commit 23479b40da
1 changed files with 143 additions and 13 deletions
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156
src/keyboard.c
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@ -699,6 +699,9 @@ static SIGTYPE interrupt_signal P_ ((int signalnum));
static void timer_start_idle P_ ((void));
static void timer_stop_idle P_ ((void));
static void timer_resume_idle P_ ((void));
static SIGTYPE handle_user_signal P_ ((int));
static char *find_user_signal_name P_ ((int));
static int store_user_signal_events P_ ((void));
/* Nonzero means don't try to suspend even if the operating system seems
to support it. */
@ -5948,20 +5951,16 @@ make_lispy_event (event)
case USER_SIGNAL_EVENT:
/* A user signal. */
switch (event->code)
if (event->code == 0)
return Qsignal;
else
{
case 0:
return Qsignal;
#ifdef SIGUSR1
case SIGUSR1:
return intern ("usr1");
#endif
#ifdef SIGUSR2
case SIGUSR2:
return intern ("usr2");
#endif
default:
return make_number (event->code);
char *name = find_user_signal_name (event->code);
if (name)
return intern (name);
else
return make_number (event->code);
}
case SAVE_SESSION_EVENT:
@ -6799,6 +6798,10 @@ read_avail_input (expected)
register int i;
int nread = 0;
/* Store pending user signal events, if any. */
if (store_user_signal_events ())
expected = 0;
if (read_socket_hook)
{
int nr;
@ -7021,6 +7024,133 @@ reinvoke_input_signal ()
}
/* User signal events. */
struct user_signal_info
{
/* Signal number. */
int sig;
/* Name of the signal. */
char *name;
/* Number of pending signals. */
int npending;
struct user_signal_info *next;
};
/* List of user signals. */
static struct user_signal_info *user_signals = NULL;
void
add_user_signal (sig, name)
int sig;
const char *name;
{
struct user_signal_info *p;
for (p = user_signals; p; p = p->next)
if (p->sig == sig)
/* Already added. */
return;
p = xmalloc (sizeof (struct user_signal_info));
p->sig = sig;
p->name = xstrdup (name);
p->npending = 0;
p->next = user_signals;
user_signals = p;
signal (sig, handle_user_signal);
}
static SIGTYPE
handle_user_signal (sig)
int sig;
{
int old_errno = errno;
struct user_signal_info *p;
#if defined (USG) && !defined (POSIX_SIGNALS)
/* USG systems forget handlers when they are used;
must reestablish each time */
signal (sig, handle_user_signal);
#endif
SIGNAL_THREAD_CHECK (sig);
for (p = user_signals; p; p = p->next)
if (p->sig == sig)
{
p->npending++;
#ifdef SIGIO
if (interrupt_input)
kill (getpid (), SIGIO);
else
#endif
{
/* Tell wait_reading_process_output that it needs to wake
up and look around. */
if (input_available_clear_time)
EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0);
}
break;
}
errno = old_errno;
}
static char *
find_user_signal_name (sig)
int sig;
{
struct user_signal_info *p;
for (p = user_signals; p; p = p->next)
if (p->sig == sig)
return p->name;
return NULL;
}
static int
store_user_signal_events ()
{
struct user_signal_info *p;
struct input_event buf;
int nstored = 0;
for (p = user_signals; p; p = p->next)
if (p->npending > 0)
{
SIGMASKTYPE mask;
if (nstored == 0)
{
bzero (&buf, sizeof buf);
buf.kind = USER_SIGNAL_EVENT;
buf.frame_or_window = selected_frame;
}
nstored += p->npending;
mask = sigblock (sigmask (p->sig));
do
{
buf.code = 0;
kbd_buffer_store_event (&buf);
buf.code = p->sig;
kbd_buffer_store_event (&buf);
p->npending--;
}
while (p->npending > 0);
sigsetmask (mask);
}
return nstored;
}
static void menu_bar_item P_ ((Lisp_Object, Lisp_Object, Lisp_Object, void*));
static Lisp_Object menu_bar_one_keymap_changed_items;