/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
mainloop.c for the Openbox window manager
- Copyright (c) 2003 Ben Jansens
+ Copyright (c) 2006 Mikael Magnusson
+ Copyright (c) 2003-2007 Dana Jansens
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include "mainloop.h"
+#include "event.h"
#include <stdio.h>
#include <stdlib.h>
static GSList *all_loops;
/* signals are global to all loops */
-struct {
+static struct {
guint installed; /* a ref count */
struct sigaction oldact;
} all_signals[NUM_SIGNALS];
/* a set of all possible signals */
-sigset_t all_signals_set;
+static sigset_t all_signals_set;
/* signals which cause a core dump, these can't be used for callbacks */
static gint core_signals[] =
gulong delay;
GSourceFunc func;
gpointer data;
+ GEqualFunc equal;
GDestroyNotify destroy;
/* The timer needs to be freed */
GTimeVal last;
/* When this timer will next trigger */
GTimeVal timeout;
+
+ /* Only allow a timer's function to fire once per run through the list,
+ so that it doesn't get locked in there forever */
+ gboolean fired;
};
struct _ObMainLoopSignalHandlerType
/* only do this if we're the last loop destroyed */
if (!all_loops) {
- guint i;
-
/* grab all the signals that cause core dumps */
for (i = 0; i < NUM_CORE_SIGNALS; ++i) {
if (all_signals[core_signals[i]].installed) {
for (i = 0; i < NUM_SIGNALS; ++i) {
while (loop->signals_fired[i]) {
for (it = loop->signal_handlers[i];
- it; it = g_slist_next(it)) {
+ it; it = g_slist_next(it)) {
ObMainLoopSignalHandlerType *h = it->data;
h->func(i, h->data);
}
ObMainLoopXHandlerType *h = it->data;
h->func(&e, h->data);
}
- } while (XPending(loop->display));
+ } while (XPending(loop->display) && loop->run);
} else {
/* this only runs if there were no x events received */
timer_dispatch(loop, (GTimeVal**)&wait);
+
selset = loop->fd_set;
/* there is a small race condition here. if a signal occurs
between this if() and the select() then we will not process
/* XXX special case for signals that default to core dump.
but throw some helpful output here... */
- fprintf(stderr, "Fuck yah. Core dump. (Signal=%d)\n", sig);
+ fprintf(stderr, "How are you gentlemen? All your base are"
+ " belong to us. (Openbox received signal %d)\n", sig);
/* die with a core dump */
abort();
#define NEAREST_TIMEOUT(loop) \
(((ObMainLoopTimer*)(loop)->timers->data)->timeout)
-static long timecompare(GTimeVal *a, GTimeVal *b)
+static glong timecompare(GTimeVal *a, GTimeVal *b)
{
- long r;
-
- if ((r = b->tv_sec - a->tv_sec)) return r;
- return b->tv_usec - a->tv_usec;
-
+ glong r;
+ if ((r = a->tv_sec - b->tv_sec)) return r;
+ return a->tv_usec - b->tv_usec;
}
static void insert_timer(ObMainLoop *loop, ObMainLoopTimer *ins)
GSList *it;
for (it = loop->timers; it; it = g_slist_next(it)) {
ObMainLoopTimer *t = it->data;
- if (timecompare(&ins->timeout, &t->timeout) >= 0) {
+ if (timecompare(&ins->timeout, &t->timeout) <= 0) {
loop->timers = g_slist_insert_before(loop->timers, it, ins);
break;
}
gulong microseconds,
GSourceFunc handler,
gpointer data,
+ GEqualFunc cmp,
GDestroyNotify notify)
{
ObMainLoopTimer *t = g_new(ObMainLoopTimer, 1);
+
+ g_assert(microseconds > 0); /* if it's 0 it'll cause an infinite loop */
+
t->delay = microseconds;
t->func = handler;
t->data = data;
+ t->equal = cmp;
t->destroy = notify;
t->del_me = FALSE;
g_get_current_time(&loop->now);
}
}
-void ob_main_loop_timeout_remove_data(ObMainLoop *loop,
- GSourceFunc handler,
- gpointer data)
+void ob_main_loop_timeout_remove_data(ObMainLoop *loop, GSourceFunc handler,
+ gpointer data, gboolean cancel_dest)
{
GSList *it;
for (it = loop->timers; it; it = g_slist_next(it)) {
ObMainLoopTimer *t = it->data;
- if (t->func == handler && t->data == data)
+ if (t->func == handler && t->equal(t->data, data)) {
t->del_me = TRUE;
+ if (cancel_dest)
+ t->destroy = NULL;
+ }
}
}
for (it = loop->timers; it; it = next) {
ObMainLoopTimer *curr;
-
+
next = g_slist_next(it);
curr = it->data;
*/
if (curr->del_me) {
/* delete the top */
- loop->timers = g_slist_delete_link(loop->timers, it);
+ loop->timers = g_slist_delete_link(loop->timers, it);
+ if (curr->destroy)
+ curr->destroy(curr->data);
g_free(curr);
continue;
}
-
- /* the queue is sorted, so if this timer shouldn't fire, none are
+
+ /* the queue is sorted, so if this timer shouldn't fire, none are
ready */
- if (timecompare(&NEAREST_TIMEOUT(loop), &loop->now) < 0)
+ if (timecompare(&NEAREST_TIMEOUT(loop), &loop->now) > 0)
break;
/* we set the last fired time to delay msec after the previous firing,
g_free(curr);
}
+ /* the timer queue has been shuffled, start from the beginning
+ (which is the next one to fire) */
+ next = loop->timers;
+
fired = TRUE;
}