-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#include <config.h>
#endif
-#include <assert.h>
-
#include <pulse/xmalloc.h>
#include <pulse/timeval.h>
#include <pulsecore/idxset.h>
#include <pulsecore/core-util.h>
+#include <pulsecore/log.h>
+#include <pulsecore/llist.h>
-#include "glib.h"
+#include <glib.h>
#include "glib-mainloop.h"
struct pa_io_event {
pa_glib_mainloop *mainloop;
int dead;
- GIOChannel *io_channel;
- GSource *source;
- GIOCondition io_condition;
- int fd;
- void (*callback) (pa_mainloop_api*m, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata);
+
+ GPollFD poll_fd;
+ int poll_fd_added;
+
+ pa_io_event_cb_t callback;
void *userdata;
- void (*destroy_callback) (pa_mainloop_api *m, pa_io_event *e, void *userdata);
- pa_io_event *next, *prev;
+ pa_io_event_destroy_cb_t destroy_callback;
+
+ PA_LLIST_FIELDS(pa_io_event);
};
struct pa_time_event {
pa_glib_mainloop *mainloop;
int dead;
- GSource *source;
+
+ int enabled;
struct timeval timeval;
- void (*callback) (pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata);
+
+ pa_time_event_cb_t callback;
void *userdata;
- void (*destroy_callback) (pa_mainloop_api *m, pa_time_event*e, void *userdata);
- pa_time_event *next, *prev;
+ pa_time_event_destroy_cb_t destroy_callback;
+
+ PA_LLIST_FIELDS(pa_time_event);
};
struct pa_defer_event {
pa_glib_mainloop *mainloop;
int dead;
- GSource *source;
- void (*callback) (pa_mainloop_api*m, pa_defer_event *e, void *userdata);
+
+ int enabled;
+
+ pa_defer_event_cb_t callback;
void *userdata;
- void (*destroy_callback) (pa_mainloop_api *m, pa_defer_event*e, void *userdata);
- pa_defer_event *next, *prev;
+ pa_defer_event_destroy_cb_t destroy_callback;
+
+ PA_LLIST_FIELDS(pa_defer_event);
};
struct pa_glib_mainloop {
- GMainContext *glib_main_context;
+ GSource source;
+
pa_mainloop_api api;
- GSource *cleanup_source;
- pa_io_event *io_events, *dead_io_events;
- pa_time_event *time_events, *dead_time_events;
- pa_defer_event *defer_events, *dead_defer_events;
-};
+ GMainContext *context;
-static void schedule_free_dead_events(pa_glib_mainloop *g);
+ PA_LLIST_HEAD(pa_io_event, io_events);
+ PA_LLIST_HEAD(pa_time_event, time_events);
+ PA_LLIST_HEAD(pa_defer_event, defer_events);
-static void glib_io_enable(pa_io_event*e, pa_io_event_flags_t f);
+ int n_enabled_defer_events, n_enabled_time_events;
+ int io_events_please_scan, time_events_please_scan, defer_events_please_scan;
-static pa_io_event* glib_io_new(pa_mainloop_api*m, int fd, pa_io_event_flags_t f, void (*callback) (pa_mainloop_api*m, pa_io_event*e, int fd, pa_io_event_flags_t f, void *userdata), void *userdata) {
+ pa_time_event *cached_next_time_event;
+};
+
+static void cleanup_io_events(pa_glib_mainloop *g, int force) {
pa_io_event *e;
- pa_glib_mainloop *g;
- assert(m && m->userdata && fd >= 0 && callback);
- g = m->userdata;
+ e = g->io_events;
+ while (e) {
+ pa_io_event *n = e->next;
- e = pa_xmalloc(sizeof(pa_io_event));
- e->mainloop = m->userdata;
- e->dead = 0;
- e->fd = fd;
- e->callback = callback;
- e->userdata = userdata;
- e->destroy_callback = NULL;
+ if (!force && g->io_events_please_scan <= 0)
+ break;
- e->io_channel = g_io_channel_unix_new(e->fd);
- assert(e->io_channel);
- e->source = NULL;
- e->io_condition = 0;
+ if (force || e->dead) {
+ PA_LLIST_REMOVE(pa_io_event, g->io_events, e);
- glib_io_enable(e, f);
+ if (e->dead) {
+ g_assert(g->io_events_please_scan > 0);
+ g->io_events_please_scan--;
+ }
- e->next = g->io_events;
- if (e->next) e->next->prev = e;
- g->io_events = e;
- e->prev = NULL;
-
- return e;
-}
+ if (e->poll_fd_added)
+ g_source_remove_poll(&g->source, &e->poll_fd);
-/* The callback GLIB calls whenever an IO condition is met */
-static gboolean io_cb(GIOChannel *source, GIOCondition condition, gpointer data) {
- pa_io_event *e = data;
- pa_io_event_flags_t f;
- assert(source && e && e->io_channel == source);
-
- f = (condition & G_IO_IN ? PA_IO_EVENT_INPUT : 0) |
- (condition & G_IO_OUT ? PA_IO_EVENT_OUTPUT : 0) |
- (condition & G_IO_ERR ? PA_IO_EVENT_ERROR : 0) |
- (condition & G_IO_HUP ? PA_IO_EVENT_HANGUP : 0);
-
- e->callback(&e->mainloop->api, e, e->fd, f, e->userdata);
- return TRUE;
-}
+ if (e->destroy_callback)
+ e->destroy_callback(&g->api, e, e->userdata);
-static void glib_io_enable(pa_io_event*e, pa_io_event_flags_t f) {
- GIOCondition c;
- assert(e && !e->dead);
-
- c = (f & PA_IO_EVENT_INPUT ? G_IO_IN : 0) | (f & PA_IO_EVENT_OUTPUT ? G_IO_OUT : 0);
-
- if (c == e->io_condition)
- return;
-
- if (e->source) {
- g_source_destroy(e->source);
- g_source_unref(e->source);
+ pa_xfree(e);
+ }
+
+ e = n;
}
-
- e->source = g_io_create_watch(e->io_channel, c | G_IO_ERR | G_IO_HUP);
- assert(e->source);
-
- g_source_set_callback(e->source, (GSourceFunc) io_cb, e, NULL);
- g_source_attach(e->source, e->mainloop->glib_main_context);
- g_source_set_priority(e->source, G_PRIORITY_DEFAULT);
-
- e->io_condition = c;
+
+ g_assert(g->io_events_please_scan == 0);
}
-static void glib_io_free(pa_io_event*e) {
- assert(e && !e->dead);
+static void cleanup_time_events(pa_glib_mainloop *g, int force) {
+ pa_time_event *e;
+
+ e = g->time_events;
+ while (e) {
+ pa_time_event *n = e->next;
+
+ if (!force && g->time_events_please_scan <= 0)
+ break;
+
+ if (force || e->dead) {
+ PA_LLIST_REMOVE(pa_time_event, g->time_events, e);
+
+ if (e->dead) {
+ g_assert(g->time_events_please_scan > 0);
+ g->time_events_please_scan--;
+ }
+
+ if (!e->dead && e->enabled) {
+ g_assert(g->n_enabled_time_events > 0);
+ g->n_enabled_time_events--;
+ }
+
+ if (e->destroy_callback)
+ e->destroy_callback(&g->api, e, e->userdata);
- if (e->source) {
- g_source_destroy(e->source);
- g_source_unref(e->source);
- e->source = NULL;
+ pa_xfree(e);
+ }
+
+ e = n;
}
-
- if (e->prev)
- e->prev->next = e->next;
- else
- e->mainloop->io_events = e->next;
- if (e->next)
- e->next->prev = e->prev;
+ g_assert(g->time_events_please_scan == 0);
+}
- if ((e->next = e->mainloop->dead_io_events))
- e->next->prev = e;
+static void cleanup_defer_events(pa_glib_mainloop *g, int force) {
+ pa_defer_event *e;
- e->mainloop->dead_io_events = e;
- e->prev = NULL;
+ e = g->defer_events;
+ while (e) {
+ pa_defer_event *n = e->next;
- e->dead = 1;
- schedule_free_dead_events(e->mainloop);
+ if (!force && g->defer_events_please_scan <= 0)
+ break;
+
+ if (force || e->dead) {
+ PA_LLIST_REMOVE(pa_defer_event, g->defer_events, e);
+
+ if (e->dead) {
+ g_assert(g->defer_events_please_scan > 0);
+ g->defer_events_please_scan--;
+ }
+
+ if (!e->dead && e->enabled) {
+ g_assert(g->n_enabled_defer_events > 0);
+ g->n_enabled_defer_events--;
+ }
+
+ if (e->destroy_callback)
+ e->destroy_callback(&g->api, e, e->userdata);
+
+ pa_xfree(e);
+ }
+
+ e = n;
+ }
+
+ g_assert(g->defer_events_please_scan == 0);
}
-static void glib_io_set_destroy(pa_io_event*e, void (*callback)(pa_mainloop_api*m, pa_io_event *e, void *userdata)) {
- assert(e);
- e->destroy_callback = callback;
+static gushort map_flags_to_glib(pa_io_event_flags_t flags) {
+ return (gushort)
+ ((flags & PA_IO_EVENT_INPUT ? G_IO_IN : 0) |
+ (flags & PA_IO_EVENT_OUTPUT ? G_IO_OUT : 0) |
+ (flags & PA_IO_EVENT_ERROR ? G_IO_ERR : 0) |
+ (flags & PA_IO_EVENT_HANGUP ? G_IO_HUP : 0));
}
-/* Time sources */
+static pa_io_event_flags_t map_flags_from_glib(gushort flags) {
+ return
+ (flags & G_IO_IN ? PA_IO_EVENT_INPUT : 0) |
+ (flags & G_IO_OUT ? PA_IO_EVENT_OUTPUT : 0) |
+ (flags & G_IO_ERR ? PA_IO_EVENT_ERROR : 0) |
+ (flags & G_IO_HUP ? PA_IO_EVENT_HANGUP : 0);
+}
-static void glib_time_restart(pa_time_event*e, const struct timeval *tv);
+static pa_io_event* glib_io_new(
+ pa_mainloop_api*m,
+ int fd,
+ pa_io_event_flags_t f,
+ pa_io_event_cb_t cb,
+ void *userdata) {
-static pa_time_event* glib_time_new(pa_mainloop_api*m, const struct timeval *tv, void (*callback) (pa_mainloop_api*m, pa_time_event*e, const struct timeval *tv, void *userdata), void *userdata) {
+ pa_io_event *e;
pa_glib_mainloop *g;
- pa_time_event *e;
-
- assert(m && m->userdata && tv && callback);
+
+ g_assert(m);
+ g_assert(m->userdata);
+ g_assert(fd >= 0);
+ g_assert(cb);
+
g = m->userdata;
- e = pa_xmalloc(sizeof(pa_time_event));
+ e = pa_xnew(pa_io_event, 1);
e->mainloop = g;
e->dead = 0;
- e->callback = callback;
+
+ e->poll_fd.fd = fd;
+ e->poll_fd.events = map_flags_to_glib(f);
+ e->poll_fd.revents = 0;
+
+ e->callback = cb;
e->userdata = userdata;
e->destroy_callback = NULL;
- e->source = NULL;
- glib_time_restart(e, tv);
+ PA_LLIST_PREPEND(pa_io_event, g->io_events, e);
+
+ g_source_add_poll(&g->source, &e->poll_fd);
+ e->poll_fd_added = 1;
- e->next = g->time_events;
- if (e->next) e->next->prev = e;
- g->time_events = e;
- e->prev = NULL;
-
return e;
}
-static guint msec_diff(const struct timeval *a, const struct timeval *b) {
- guint r;
- assert(a && b);
-
- if (a->tv_sec < b->tv_sec)
- return 0;
+static void glib_io_enable(pa_io_event*e, pa_io_event_flags_t f) {
+ g_assert(e);
+ g_assert(!e->dead);
- if (a->tv_sec == b->tv_sec && a->tv_sec <= b->tv_sec)
- return 0;
+ e->poll_fd.events = map_flags_to_glib(f);
+}
- r = (a->tv_sec-b->tv_sec)*1000;
+static void glib_io_free(pa_io_event*e) {
+ g_assert(e);
+ g_assert(!e->dead);
- if (a->tv_usec >= b->tv_usec)
- r += (a->tv_usec - b->tv_usec) / 1000;
- else
- r -= (b->tv_usec - a->tv_usec) / 1000;
-
- return r;
-}
+ e->dead = 1;
+ e->mainloop->io_events_please_scan++;
-static gboolean time_cb(gpointer data) {
- pa_time_event* e = data;
- assert(e && e->mainloop && e->source);
+ if (e->poll_fd_added) {
+ g_source_remove_poll(&e->mainloop->source, &e->poll_fd);
+ e->poll_fd_added = 0;
+ }
+}
- g_source_unref(e->source);
- e->source = NULL;
+static void glib_io_set_destroy(pa_io_event*e, pa_io_event_destroy_cb_t cb) {
+ g_assert(e);
+ g_assert(!e->dead);
- e->callback(&e->mainloop->api, e, &e->timeval, e->userdata);
- return FALSE;
+ e->destroy_callback = cb;
}
-static void glib_time_restart(pa_time_event*e, const struct timeval *tv) {
- struct timeval now;
- assert(e && e->mainloop && !e->dead);
+/* Time sources */
- pa_gettimeofday(&now);
- if (e->source) {
- g_source_destroy(e->source);
- g_source_unref(e->source);
- }
+static pa_time_event* glib_time_new(
+ pa_mainloop_api*m,
+ const struct timeval *tv,
+ pa_time_event_cb_t cb,
+ void *userdata) {
+
+ pa_glib_mainloop *g;
+ pa_time_event *e;
+
+ g_assert(m);
+ g_assert(m->userdata);
+ g_assert(cb);
+
+ g = m->userdata;
+
+ e = pa_xnew(pa_time_event, 1);
+ e->mainloop = g;
+ e->dead = 0;
- if (tv) {
+ if ((e->enabled = !!tv)) {
e->timeval = *tv;
- e->source = g_timeout_source_new(msec_diff(tv, &now));
- assert(e->source);
- g_source_set_callback(e->source, time_cb, e, NULL);
- g_source_set_priority(e->source, G_PRIORITY_DEFAULT);
- g_source_attach(e->source, e->mainloop->glib_main_context);
- } else
- e->source = NULL;
- }
+ g->n_enabled_time_events++;
-static void glib_time_free(pa_time_event *e) {
- assert(e && e->mainloop && !e->dead);
+ if (g->cached_next_time_event) {
+ g_assert(g->cached_next_time_event->enabled);
- if (e->source) {
- g_source_destroy(e->source);
- g_source_unref(e->source);
- e->source = NULL;
+ if (pa_timeval_cmp(tv, &g->cached_next_time_event->timeval) < 0)
+ g->cached_next_time_event = e;
+ }
}
- if (e->prev)
- e->prev->next = e->next;
- else
- e->mainloop->time_events = e->next;
+ e->callback = cb;
+ e->userdata = userdata;
+ e->destroy_callback = NULL;
- if (e->next)
- e->next->prev = e->prev;
+ PA_LLIST_PREPEND(pa_time_event, g->time_events, e);
- if ((e->next = e->mainloop->dead_time_events))
- e->next->prev = e;
+ return e;
+}
+
+static void glib_time_restart(pa_time_event*e, const struct timeval *tv) {
+ g_assert(e);
+ g_assert(!e->dead);
- e->mainloop->dead_time_events = e;
- e->prev = NULL;
+ if (e->enabled && !tv) {
+ g_assert(e->mainloop->n_enabled_time_events > 0);
+ e->mainloop->n_enabled_time_events--;
+ } else if (!e->enabled && tv)
+ e->mainloop->n_enabled_time_events++;
+
+ if ((e->enabled = !!tv))
+ e->timeval = *tv;
+
+ if (e->mainloop->cached_next_time_event && e->enabled) {
+ g_assert(e->mainloop->cached_next_time_event->enabled);
+
+ if (pa_timeval_cmp(tv, &e->mainloop->cached_next_time_event->timeval) < 0)
+ e->mainloop->cached_next_time_event = e;
+ } else if (e->mainloop->cached_next_time_event == e)
+ e->mainloop->cached_next_time_event = NULL;
+ }
+
+static void glib_time_free(pa_time_event *e) {
+ g_assert(e);
+ g_assert(!e->dead);
e->dead = 1;
- schedule_free_dead_events(e->mainloop);
+ e->mainloop->time_events_please_scan++;
+
+ if (e->enabled)
+ e->mainloop->n_enabled_time_events--;
+
+ if (e->mainloop->cached_next_time_event == e)
+ e->mainloop->cached_next_time_event = NULL;
}
-static void glib_time_set_destroy(pa_time_event *e, void (*callback)(pa_mainloop_api*m, pa_time_event*e, void *userdata)) {
- assert(e);
- e->destroy_callback = callback;
+static void glib_time_set_destroy(pa_time_event *e, pa_time_event_destroy_cb_t cb) {
+ g_assert(e);
+ g_assert(!e->dead);
+
+ e->destroy_callback = cb;
}
/* Deferred sources */
-static void glib_defer_enable(pa_defer_event *e, int b);
+static pa_defer_event* glib_defer_new(
+ pa_mainloop_api*m,
+ pa_defer_event_cb_t cb,
+ void *userdata) {
-static pa_defer_event* glib_defer_new(pa_mainloop_api*m, void (*callback) (pa_mainloop_api*m, pa_defer_event *e, void *userdata), void *userdata) {
pa_defer_event *e;
pa_glib_mainloop *g;
- assert(m && m->userdata && callback);
+ g_assert(m);
+ g_assert(m->userdata);
+ g_assert(cb);
+
g = m->userdata;
-
- e = pa_xmalloc(sizeof(pa_defer_event));
+
+ e = pa_xnew(pa_defer_event, 1);
e->mainloop = g;
e->dead = 0;
- e->callback = callback;
+
+ e->enabled = 1;
+ g->n_enabled_defer_events++;
+
+ e->callback = cb;
e->userdata = userdata;
e->destroy_callback = NULL;
- e->source = NULL;
-
- glib_defer_enable(e, 1);
- e->next = g->defer_events;
- if (e->next) e->next->prev = e;
- g->defer_events = e;
- e->prev = NULL;
+ PA_LLIST_PREPEND(pa_defer_event, g->defer_events, e);
return e;
}
-static gboolean idle_cb(gpointer data) {
- pa_defer_event* e = data;
- assert(e && e->mainloop && e->source);
+static void glib_defer_enable(pa_defer_event *e, int b) {
+ g_assert(e);
+ g_assert(!e->dead);
+
+ if (e->enabled && !b) {
+ g_assert(e->mainloop->n_enabled_defer_events > 0);
+ e->mainloop->n_enabled_defer_events--;
+ } else if (!e->enabled && b)
+ e->mainloop->n_enabled_defer_events++;
- e->callback(&e->mainloop->api, e, e->userdata);
- return TRUE;
+ e->enabled = b;
}
-static void glib_defer_enable(pa_defer_event *e, int b) {
- assert(e && e->mainloop);
-
- if (e->source && !b) {
- g_source_destroy(e->source);
- g_source_unref(e->source);
- e->source = NULL;
- } else if (!e->source && b) {
- e->source = g_idle_source_new();
- assert(e->source);
- g_source_set_callback(e->source, idle_cb, e, NULL);
- g_source_attach(e->source, e->mainloop->glib_main_context);
- g_source_set_priority(e->source, G_PRIORITY_HIGH);
+static void glib_defer_free(pa_defer_event *e) {
+ g_assert(e);
+ g_assert(!e->dead);
+
+ e->dead = 1;
+ e->mainloop->defer_events_please_scan++;
+
+ if (e->enabled) {
+ g_assert(e->mainloop->n_enabled_defer_events > 0);
+ e->mainloop->n_enabled_defer_events--;
}
}
-static void glib_defer_free(pa_defer_event *e) {
- assert(e && e->mainloop && !e->dead);
+static void glib_defer_set_destroy(pa_defer_event *e, pa_defer_event_destroy_cb_t cb) {
+ g_assert(e);
+ g_assert(!e->dead);
+
+ e->destroy_callback = cb;
+}
+
+/* quit() */
- if (e->source) {
- g_source_destroy(e->source);
- g_source_unref(e->source);
- e->source = NULL;
+static void glib_quit(pa_mainloop_api*a, int retval) {
+
+ g_warning("quit() ignored");
+
+ /* NOOP */
+}
+
+static pa_time_event* find_next_time_event(pa_glib_mainloop *g) {
+ pa_time_event *t, *n = NULL;
+ g_assert(g);
+
+ if (g->cached_next_time_event)
+ return g->cached_next_time_event;
+
+ for (t = g->time_events; t; t = t->next) {
+
+ if (t->dead || !t->enabled)
+ continue;
+
+ if (!n || pa_timeval_cmp(&t->timeval, &n->timeval) < 0) {
+ n = t;
+
+ /* Shortcut for tv = { 0, 0 } */
+ if (n->timeval.tv_sec <= 0)
+ break;
+ }
}
- if (e->prev)
- e->prev->next = e->next;
- else
- e->mainloop->defer_events = e->next;
+ g->cached_next_time_event = n;
+ return n;
+}
- if (e->next)
- e->next->prev = e->prev;
+static void scan_dead(pa_glib_mainloop *g) {
+ g_assert(g);
- if ((e->next = e->mainloop->dead_defer_events))
- e->next->prev = e;
+ if (g->io_events_please_scan)
+ cleanup_io_events(g, 0);
- e->mainloop->dead_defer_events = e;
- e->prev = NULL;
+ if (g->time_events_please_scan)
+ cleanup_time_events(g, 0);
- e->dead = 1;
- schedule_free_dead_events(e->mainloop);
+ if (g->defer_events_please_scan)
+ cleanup_defer_events(g, 0);
}
-static void glib_defer_set_destroy(pa_defer_event *e, void (*callback)(pa_mainloop_api *m, pa_defer_event *e, void *userdata)) {
- assert(e);
- e->destroy_callback = callback;
+static gboolean prepare_func(GSource *source, gint *timeout) {
+ pa_glib_mainloop *g = (pa_glib_mainloop*) source;
+
+ g_assert(g);
+ g_assert(timeout);
+
+ scan_dead(g);
+
+ if (g->n_enabled_defer_events) {
+ *timeout = 0;
+ return TRUE;
+ } else if (g->n_enabled_time_events) {
+ pa_time_event *t;
+ GTimeVal now;
+ struct timeval tvnow;
+ pa_usec_t usec;
+
+ t = find_next_time_event(g);
+ g_assert(t);
+
+ g_source_get_current_time(source, &now);
+ tvnow.tv_sec = now.tv_sec;
+ tvnow.tv_usec = now.tv_usec;
+
+ if (pa_timeval_cmp(&t->timeval, &tvnow) <= 0) {
+ *timeout = 0;
+ return TRUE;
+ }
+ usec = pa_timeval_diff(&t->timeval, &tvnow);
+ *timeout = (gint) (usec / 1000);
+ } else
+ *timeout = -1;
+
+ return FALSE;
}
+static gboolean check_func(GSource *source) {
+ pa_glib_mainloop *g = (pa_glib_mainloop*) source;
+ pa_io_event *e;
-/* quit() */
+ g_assert(g);
-static void glib_quit(pa_mainloop_api*a, PA_GCC_UNUSED int retval) {
- pa_glib_mainloop *g;
- assert(a && a->userdata);
- g = a->userdata;
+ if (g->n_enabled_defer_events)
+ return TRUE;
+ else if (g->n_enabled_time_events) {
+ pa_time_event *t;
+ GTimeVal now;
+ struct timeval tvnow;
- /* NOOP */
+ t = find_next_time_event(g);
+ g_assert(t);
+
+ g_source_get_current_time(source, &now);
+ tvnow.tv_sec = now.tv_sec;
+ tvnow.tv_usec = now.tv_usec;
+
+ if (pa_timeval_cmp(&t->timeval, &tvnow) <= 0)
+ return TRUE;
+ }
+
+ for (e = g->io_events; e; e = e->next)
+ if (!e->dead && e->poll_fd.revents != 0)
+ return TRUE;
+
+ return FALSE;
+}
+
+static gboolean dispatch_func(GSource *source, GSourceFunc callback, gpointer userdata) {
+ pa_glib_mainloop *g = (pa_glib_mainloop*) source;
+ pa_io_event *e;
+
+ g_assert(g);
+
+ if (g->n_enabled_defer_events) {
+ pa_defer_event *d;
+
+ for (d = g->defer_events; d; d = d->next) {
+ if (d->dead || !d->enabled)
+ continue;
+
+ break;
+ }
+
+ g_assert(d);
+
+ d->callback(&g->api, d, d->userdata);
+ return TRUE;
+ }
+
+ if (g->n_enabled_time_events) {
+ GTimeVal now;
+ struct timeval tvnow;
+ pa_time_event *t;
+
+ t = find_next_time_event(g);
+ g_assert(t);
+
+ g_source_get_current_time(source, &now);
+ tvnow.tv_sec = now.tv_sec;
+ tvnow.tv_usec = now.tv_usec;
+
+ if (pa_timeval_cmp(&t->timeval, &tvnow) <= 0) {
+
+ /* Disable time event */
+ glib_time_restart(t, NULL);
+
+ t->callback(&g->api, t, &t->timeval, t->userdata);
+ return TRUE;
+ }
+ }
+
+ for (e = g->io_events; e; e = e->next)
+ if (!e->dead && e->poll_fd.revents != 0) {
+ e->callback(&g->api, e, e->poll_fd.fd, map_flags_from_glib(e->poll_fd.revents), e->userdata);
+ e->poll_fd.revents = 0;
+ return TRUE;
+ }
+
+ return FALSE;
}
static const pa_mainloop_api vtable = {
.time_restart = glib_time_restart,
.time_free = glib_time_free,
.time_set_destroy = glib_time_set_destroy,
-
+
.defer_new = glib_defer_new,
.defer_enable = glib_defer_enable,
.defer_free = glib_defer_free,
.defer_set_destroy = glib_defer_set_destroy,
-
+
.quit = glib_quit,
};
pa_glib_mainloop *pa_glib_mainloop_new(GMainContext *c) {
pa_glib_mainloop *g;
-
- g = pa_xmalloc(sizeof(pa_glib_mainloop));
- if (c) {
- g->glib_main_context = c;
- g_main_context_ref(c);
- } else
- g->glib_main_context = g_main_context_default();
-
- g->api = vtable;
- g->api.userdata = g;
-
- g->io_events = g->dead_io_events = NULL;
- g->time_events = g->dead_time_events = NULL;
- g->defer_events = g->dead_defer_events = NULL;
-
- g->cleanup_source = NULL;
- return g;
-}
-
-static void free_io_events(pa_io_event *e) {
- while (e) {
- pa_io_event *r = e;
- e = r->next;
- if (r->source) {
- g_source_destroy(r->source);
- g_source_unref(r->source);
- }
-
- if (r->io_channel)
- g_io_channel_unref(r->io_channel);
-
- if (r->destroy_callback)
- r->destroy_callback(&r->mainloop->api, r, r->userdata);
+ static GSourceFuncs source_funcs = {
+ prepare_func,
+ check_func,
+ dispatch_func,
+ NULL,
+ NULL,
+ NULL
+ };
- pa_xfree(r);
- }
-}
+ g = (pa_glib_mainloop*) g_source_new(&source_funcs, sizeof(pa_glib_mainloop));
+ g_main_context_ref(g->context = c ? c : g_main_context_default());
-static void free_time_events(pa_time_event *e) {
- while (e) {
- pa_time_event *r = e;
- e = r->next;
+ g->api = vtable;
+ g->api.userdata = g;
- if (r->source) {
- g_source_destroy(r->source);
- g_source_unref(r->source);
- }
-
- if (r->destroy_callback)
- r->destroy_callback(&r->mainloop->api, r, r->userdata);
+ PA_LLIST_HEAD_INIT(pa_io_event, g->io_events);
+ PA_LLIST_HEAD_INIT(pa_time_event, g->time_events);
+ PA_LLIST_HEAD_INIT(pa_defer_event, g->defer_events);
- pa_xfree(r);
- }
-}
+ g->n_enabled_defer_events = g->n_enabled_time_events = 0;
+ g->io_events_please_scan = g->time_events_please_scan = g->defer_events_please_scan = 0;
-static void free_defer_events(pa_defer_event *e) {
- while (e) {
- pa_defer_event *r = e;
- e = r->next;
+ g->cached_next_time_event = NULL;
- if (r->source) {
- g_source_destroy(r->source);
- g_source_unref(r->source);
- }
-
- if (r->destroy_callback)
- r->destroy_callback(&r->mainloop->api, r, r->userdata);
+ g_source_attach(&g->source, g->context);
+ g_source_set_can_recurse(&g->source, FALSE);
- pa_xfree(r);
- }
+ return g;
}
void pa_glib_mainloop_free(pa_glib_mainloop* g) {
- assert(g);
-
- free_io_events(g->io_events);
- free_io_events(g->dead_io_events);
- free_defer_events(g->defer_events);
- free_defer_events(g->dead_defer_events);
- free_time_events(g->time_events);
- free_time_events(g->dead_time_events);
-
- if (g->cleanup_source) {
- g_source_destroy(g->cleanup_source);
- g_source_unref(g->cleanup_source);
- }
+ g_assert(g);
- g_main_context_unref(g->glib_main_context);
- pa_xfree(g);
-}
+ cleanup_io_events(g, 1);
+ cleanup_defer_events(g, 1);
+ cleanup_time_events(g, 1);
-pa_mainloop_api* pa_glib_mainloop_get_api(pa_glib_mainloop *g) {
- assert(g);
- return &g->api;
+ g_main_context_unref(g->context);
+ g_source_destroy(&g->source);
+ g_source_unref(&g->source);
}
-static gboolean free_dead_events(gpointer p) {
- pa_glib_mainloop *g = p;
- assert(g);
-
- free_io_events(g->dead_io_events);
- free_defer_events(g->dead_defer_events);
- free_time_events(g->dead_time_events);
-
- g->dead_io_events = NULL;
- g->dead_defer_events = NULL;
- g->dead_time_events = NULL;
-
- g_source_destroy(g->cleanup_source);
- g_source_unref(g->cleanup_source);
- g->cleanup_source = NULL;
-
- return FALSE;
-}
-
-static void schedule_free_dead_events(pa_glib_mainloop *g) {
- assert(g && g->glib_main_context);
+pa_mainloop_api* pa_glib_mainloop_get_api(pa_glib_mainloop *g) {
+ g_assert(g);
- if (g->cleanup_source)
- return;
-
- g->cleanup_source = g_idle_source_new();
- assert(g->cleanup_source);
- g_source_set_callback(g->cleanup_source, free_dead_events, g, NULL);
- g_source_attach(g->cleanup_source, g->glib_main_context);
+ return &g->api;
}