/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
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,
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 <unistd.h>
#include <stdlib.h>
#include <string.h>
-#include <assert.h>
#include <fcntl.h>
#include <errno.h>
-#ifdef HAVE_SYS_POLL_H
-#include <sys/poll.h>
+#ifdef HAVE_POLL_H
+#include <poll.h>
#else
-#include "../pulsecore/poll.h"
+#include <pulsecore/poll.h>
#endif
-#include "../pulsecore/winsock.h"
-
#ifndef HAVE_PIPE
-#include "../pulsecore/pipe.h"
+#include <pulsecore/pipe.h>
#endif
-#include <pulsecore/core-error.h>
#include <pulse/timeval.h>
#include <pulse/xmalloc.h>
#include <pulsecore/core-util.h>
#include <pulsecore/llist.h>
#include <pulsecore/log.h>
+#include <pulsecore/core-error.h>
+#include <pulsecore/winsock.h>
+#include <pulsecore/macro.h>
#include "mainloop.h"
struct pa_io_event {
pa_mainloop *mainloop;
int dead;
-
+
int fd;
pa_io_event_flags_t events;
struct pollfd *pollfd;
-
+
pa_io_event_cb_t callback;
void *userdata;
pa_io_event_destroy_cb_t destroy_callback;
pa_io_event_flags_t events,
pa_io_event_cb_t callback,
void *userdata) {
-
+
pa_mainloop *m;
pa_io_event *e;
- assert(a);
- assert(a->userdata);
- assert(fd >= 0);
- assert(callback);
-
+ pa_assert(a);
+ pa_assert(a->userdata);
+ pa_assert(fd >= 0);
+ pa_assert(callback);
+
m = a->userdata;
- assert(a == &m->api);
+ pa_assert(a == &m->api);
e = pa_xnew(pa_io_event, 1);
e->mainloop = m;
e->fd = fd;
e->events = events;
e->pollfd = NULL;
-
+
e->callback = callback;
e->userdata = userdata;
e->destroy_callback = NULL;
if ((select((SELECT_TYPE_ARG1) fd, NULL, NULL, SELECT_TYPE_ARG234 &xset,
SELECT_TYPE_ARG5 &tv) == -1) &&
(WSAGetLastError() == WSAENOTSOCK)) {
- pa_log_warn(__FILE__": WARNING: cannot monitor non-socket file descriptors.");
+ pa_log_warn("Cannot monitor non-socket file descriptors.");
e->dead = 1;
}
}
}
static void mainloop_io_enable(pa_io_event *e, pa_io_event_flags_t events) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
if (e->events == events)
return;
-
+
e->events = events;
if (e->pollfd)
}
static void mainloop_io_free(pa_io_event *e) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
e->dead = 1;
e->mainloop->io_events_please_scan ++;
}
static void mainloop_io_set_destroy(pa_io_event *e, pa_io_event_destroy_cb_t callback) {
- assert(e);
-
+ pa_assert(e);
+
e->destroy_callback = callback;
}
pa_mainloop *m;
pa_defer_event *e;
- assert(a);
- assert(a->userdata);
- assert(callback);
-
+ pa_assert(a);
+ pa_assert(a->userdata);
+ pa_assert(callback);
+
m = a->userdata;
- assert(a == &m->api);
+ pa_assert(a == &m->api);
e = pa_xnew(pa_defer_event, 1);
e->mainloop = m;
e->enabled = 1;
m->n_enabled_defer_events++;
-
+
e->callback = callback;
e->userdata = userdata;
e->destroy_callback = NULL;
}
static void mainloop_defer_enable(pa_defer_event *e, int b) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
if (e->enabled && !b) {
- assert(e->mainloop->n_enabled_defer_events > 0);
+ pa_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++;
pa_mainloop_wakeup(e->mainloop);
}
-
+
e->enabled = b;
}
static void mainloop_defer_free(pa_defer_event *e) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
e->dead = 1;
e->mainloop->defer_events_please_scan ++;
if (e->enabled) {
- assert(e->mainloop->n_enabled_defer_events > 0);
+ pa_assert(e->mainloop->n_enabled_defer_events > 0);
e->mainloop->n_enabled_defer_events--;
+ e->enabled = 0;
}
}
static void mainloop_defer_set_destroy(pa_defer_event *e, pa_defer_event_destroy_cb_t callback) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
e->destroy_callback = callback;
}
const struct timeval *tv,
pa_time_event_cb_t callback,
void *userdata) {
-
+
pa_mainloop *m;
pa_time_event *e;
- assert(a);
- assert(a->userdata);
- assert(callback);
-
+ pa_assert(a);
+ pa_assert(a->userdata);
+ pa_assert(callback);
+
m = a->userdata;
- assert(a == &m->api);
+ pa_assert(a == &m->api);
e = pa_xnew(pa_time_event, 1);
e->mainloop = m;
m->n_enabled_time_events++;
if (m->cached_next_time_event) {
- assert(m->cached_next_time_event->enabled);
+ pa_assert(m->cached_next_time_event->enabled);
if (pa_timeval_cmp(tv, &m->cached_next_time_event->timeval) < 0)
m->cached_next_time_event = e;
if (e->enabled)
pa_mainloop_wakeup(m);
-
+
return e;
}
static void mainloop_time_restart(pa_time_event *e, const struct timeval *tv) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
if (e->enabled && !tv) {
- assert(e->mainloop->n_enabled_time_events > 0);
+ pa_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->mainloop->cached_next_time_event && e->enabled) {
- assert(e->mainloop->cached_next_time_event->enabled);
-
+ pa_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)
}
static void mainloop_time_free(pa_time_event *e) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
e->dead = 1;
e->mainloop->time_events_please_scan ++;
if (e->enabled) {
- assert(e->mainloop->n_enabled_time_events > 0);
+ pa_assert(e->mainloop->n_enabled_time_events > 0);
e->mainloop->n_enabled_time_events--;
+ e->enabled = 0;
}
if (e->mainloop->cached_next_time_event == e)
e->mainloop->cached_next_time_event = NULL;
-
+
/* no wakeup needed here. Think about it! */
}
static void mainloop_time_set_destroy(pa_time_event *e, pa_time_event_destroy_cb_t callback) {
- assert(e);
- assert(!e->dead);
+ pa_assert(e);
+ pa_assert(!e->dead);
e->destroy_callback = callback;
}
static void mainloop_quit(pa_mainloop_api*a, int retval) {
pa_mainloop *m;
-
- assert(a);
- assert(a->userdata);
+
+ pa_assert(a);
+ pa_assert(a->userdata);
m = a->userdata;
- assert(a == &m->api);
+ pa_assert(a == &m->api);
pa_mainloop_quit(m, retval);
}
-
+
static const pa_mainloop_api vtable = {
.userdata = NULL,
.time_restart = mainloop_time_restart,
.time_free = mainloop_time_free,
.time_set_destroy = mainloop_time_set_destroy,
-
+
.defer_new = mainloop_defer_new,
.defer_enable = mainloop_defer_enable,
.defer_free = mainloop_defer_free,
.defer_set_destroy = mainloop_defer_set_destroy,
-
+
.quit = mainloop_quit,
};
m->wakeup_pipe_type = 0;
if (pipe(m->wakeup_pipe) < 0) {
- pa_log_error(__FILE__": ERROR: cannot create wakeup pipe");
+ pa_log_error("ERROR: cannot create wakeup pipe");
pa_xfree(m);
return NULL;
}
- pa_make_nonblock_fd(m->wakeup_pipe[0]);
- pa_make_nonblock_fd(m->wakeup_pipe[1]);
+ pa_make_fd_nonblock(m->wakeup_pipe[0]);
+ pa_make_fd_nonblock(m->wakeup_pipe[1]);
+ pa_make_fd_cloexec(m->wakeup_pipe[0]);
+ pa_make_fd_cloexec(m->wakeup_pipe[1]);
m->wakeup_requested = 0;
PA_LLIST_HEAD_INIT(pa_io_event, m->io_events);
m->cached_next_time_event = NULL;
m->prepared_timeout = 0;
-
+
m->pollfds = NULL;
m->max_pollfds = m->n_pollfds = 0;
m->rebuild_pollfds = 1;
m->poll_func = NULL;
m->poll_func_userdata = NULL;
m->poll_func_ret = -1;
-
+
return m;
}
if (!force && m->io_events_please_scan <= 0)
break;
-
+
if (force || e->dead) {
PA_LLIST_REMOVE(pa_io_event, m->io_events, e);
if (e->dead) {
- assert(m->io_events_please_scan > 0);
+ pa_assert(m->io_events_please_scan > 0);
m->io_events_please_scan--;
}
-
+
if (e->destroy_callback)
e->destroy_callback(&m->api, e, e->userdata);
-
+
pa_xfree(e);
m->rebuild_pollfds = 1;
e = n;
}
- assert(m->io_events_please_scan == 0);
+ pa_assert(m->io_events_please_scan == 0);
}
static void cleanup_time_events(pa_mainloop *m, int force) {
if (!force && m->time_events_please_scan <= 0)
break;
-
+
if (force || e->dead) {
PA_LLIST_REMOVE(pa_time_event, m->time_events, e);
if (e->dead) {
- assert(m->time_events_please_scan > 0);
+ pa_assert(m->time_events_please_scan > 0);
m->time_events_please_scan--;
}
if (!e->dead && e->enabled) {
- assert(m->n_enabled_time_events > 0);
+ pa_assert(m->n_enabled_time_events > 0);
m->n_enabled_time_events--;
+ e->enabled = 0;
}
-
+
if (e->destroy_callback)
e->destroy_callback(&m->api, e, e->userdata);
-
+
pa_xfree(e);
}
e = n;
}
- assert(m->time_events_please_scan == 0);
+ pa_assert(m->time_events_please_scan == 0);
}
static void cleanup_defer_events(pa_mainloop *m, int force) {
if (!force && m->defer_events_please_scan <= 0)
break;
-
+
if (force || e->dead) {
PA_LLIST_REMOVE(pa_defer_event, m->defer_events, e);
if (e->dead) {
- assert(m->defer_events_please_scan > 0);
+ pa_assert(m->defer_events_please_scan > 0);
m->defer_events_please_scan--;
}
if (!e->dead && e->enabled) {
- assert(m->n_enabled_defer_events > 0);
+ pa_assert(m->n_enabled_defer_events > 0);
m->n_enabled_defer_events--;
+ e->enabled = 0;
}
-
+
if (e->destroy_callback)
e->destroy_callback(&m->api, e, e->userdata);
-
+
pa_xfree(e);
}
e = n;
}
- assert(m->defer_events_please_scan == 0);
+ pa_assert(m->defer_events_please_scan == 0);
}
void pa_mainloop_free(pa_mainloop* m) {
- assert(m);
+ pa_assert(m);
cleanup_io_events(m, 1);
cleanup_defer_events(m, 1);
pa_xfree(m->pollfds);
- if (m->wakeup_pipe[0] >= 0)
- close(m->wakeup_pipe[0]);
- if (m->wakeup_pipe[1] >= 0)
- close(m->wakeup_pipe[1]);
+ pa_close_pipe(m->wakeup_pipe);
pa_xfree(m);
}
static void scan_dead(pa_mainloop *m) {
- assert(m);
+ pa_assert(m);
if (m->io_events_please_scan)
cleanup_io_events(m, 0);
pa_io_event *e;
int r = 0, k;
- assert(m->poll_func_ret > 0);
-
+ pa_assert(m->poll_func_ret > 0);
+
for (e = m->io_events, k = m->poll_func_ret; e && !m->quit && k > 0; e = e->next) {
if (e->dead || !e->pollfd || !e->pollfd->revents)
continue;
-
- assert(e->pollfd->fd == e->fd && e->callback);
+
+ pa_assert(e->pollfd->fd == e->fd);
+ pa_assert(e->callback);
e->callback(&m->api, e, e->fd, map_flags_from_libc(e->pollfd->revents), e->userdata);
e->pollfd->revents = 0;
r++;
for (e = m->defer_events; e && !m->quit; e = e->next) {
if (e->dead || !e->enabled)
continue;
-
- assert(e->callback);
+
+ pa_assert(e->callback);
e->callback(&m->api, e, e->userdata);
r++;
}
static pa_time_event* find_next_time_event(pa_mainloop *m) {
pa_time_event *t, *n = NULL;
- assert(m);
+ pa_assert(m);
if (m->cached_next_time_event)
return m->cached_next_time_event;
-
+
for (t = m->time_events; t; t = t->next) {
if (t->dead || !t->enabled)
return -1;
t = find_next_time_event(m);
- assert(t);
+ pa_assert(t);
if (t->timeval.tv_sec <= 0)
return 0;
-
+
pa_gettimeofday(&now);
if (pa_timeval_cmp(&t->timeval, &now) <= 0)
pa_time_event *e;
struct timeval now;
int r = 0;
- assert(m);
+ pa_assert(m);
if (m->n_enabled_time_events <= 0)
return 0;
pa_gettimeofday(&now);
for (e = m->time_events; e && !m->quit; e = e->next) {
-
+
if (e->dead || !e->enabled)
continue;
if (pa_timeval_cmp(&e->timeval, &now) <= 0) {
- assert(e->callback);
+ pa_assert(e->callback);
/* Disable time event */
mainloop_time_restart(e, NULL);
void pa_mainloop_wakeup(pa_mainloop *m) {
char c = 'W';
- assert(m);
+ pa_assert(m);
if (m->wakeup_pipe[1] >= 0 && m->state == STATE_POLLING) {
pa_write(m->wakeup_pipe[1], &c, sizeof(c), &m->wakeup_pipe_type);
static void clear_wakeup(pa_mainloop *m) {
char c[10];
- assert(m);
+ pa_assert(m);
if (m->wakeup_pipe[0] < 0)
return;
}
int pa_mainloop_prepare(pa_mainloop *m, int timeout) {
- assert(m);
- assert(m->state == STATE_PASSIVE);
+ pa_assert(m);
+ pa_assert(m->state == STATE_PASSIVE);
clear_wakeup(m);
scan_dead(m);
if (m->n_enabled_defer_events <= 0) {
if (m->rebuild_pollfds)
rebuild_pollfds(m);
-
+
m->prepared_timeout = calc_next_timeout(m);
if (timeout >= 0 && (timeout < m->prepared_timeout || m->prepared_timeout < 0))
m->prepared_timeout = timeout;
}
int pa_mainloop_poll(pa_mainloop *m) {
- assert(m);
- assert(m->state == STATE_PREPARED);
+ pa_assert(m);
+ pa_assert(m->state == STATE_PREPARED);
if (m->quit)
goto quit;
if (m->n_enabled_defer_events )
m->poll_func_ret = 0;
else {
- assert(!m->rebuild_pollfds);
-
+ pa_assert(!m->rebuild_pollfds);
+
if (m->poll_func)
m->poll_func_ret = m->poll_func(m->pollfds, m->n_pollfds, m->prepared_timeout, m->poll_func_userdata);
else
if (errno == EINTR)
m->poll_func_ret = 0;
else
- pa_log(__FILE__": poll(): %s", pa_cstrerror(errno));
+ pa_log("poll(): %s", pa_cstrerror(errno));
}
}
int pa_mainloop_dispatch(pa_mainloop *m) {
int dispatched = 0;
- assert(m);
- assert(m->state == STATE_POLLED);
+ pa_assert(m);
+ pa_assert(m->state == STATE_POLLED);
if (m->quit)
goto quit;
-
+
if (m->n_enabled_defer_events)
dispatched += dispatch_defer(m);
else {
- if (m->n_enabled_time_events)
+ if (m->n_enabled_time_events)
dispatched += dispatch_timeout(m);
-
+
if (m->quit)
goto quit;
if (m->poll_func_ret > 0)
dispatched += dispatch_pollfds(m);
}
-
+
if (m->quit)
goto quit;
-
+
m->state = STATE_PASSIVE;
return dispatched;
}
int pa_mainloop_get_retval(pa_mainloop *m) {
- assert(m);
+ pa_assert(m);
return m->retval;
}
int pa_mainloop_iterate(pa_mainloop *m, int block, int *retval) {
int r;
- assert(m);
+ pa_assert(m);
if ((r = pa_mainloop_prepare(m, block ? -1 : 0)) < 0)
goto quit;
return r;
quit:
-
+
if ((r == -2) && retval)
*retval = pa_mainloop_get_retval(m);
return r;
int pa_mainloop_run(pa_mainloop *m, int *retval) {
int r;
-
+
while ((r = pa_mainloop_iterate(m, 1, retval)) >= 0);
if (r == -2)
}
void pa_mainloop_quit(pa_mainloop *m, int retval) {
- assert(m);
+ pa_assert(m);
m->quit = 1;
m->retval = retval;
}
pa_mainloop_api* pa_mainloop_get_api(pa_mainloop*m) {
- assert(m);
+ pa_assert(m);
return &m->api;
}
void pa_mainloop_set_poll_func(pa_mainloop *m, pa_poll_func poll_func, void *userdata) {
- assert(m);
+ pa_assert(m);
m->poll_func = poll_func;
m->poll_func_userdata = userdata;