diff options
Diffstat (limited to 'src/pulse/mainloop.c')
| -rw-r--r-- | src/pulse/mainloop.c | 274 |
1 files changed, 139 insertions, 135 deletions
diff --git a/src/pulse/mainloop.c b/src/pulse/mainloop.c index f7b15537..aaed3caf 100644 --- a/src/pulse/mainloop.c +++ b/src/pulse/mainloop.c @@ -1,18 +1,19 @@ -/* $Id$ */ - /*** 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 @@ -28,40 +29,39 @@ #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; @@ -154,17 +154,17 @@ static pa_io_event* mainloop_io_new( 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; @@ -173,7 +173,7 @@ static pa_io_event* mainloop_io_new( e->fd = fd; e->events = events; e->pollfd = NULL; - + e->callback = callback; e->userdata = userdata; e->destroy_callback = NULL; @@ -192,7 +192,7 @@ static pa_io_event* mainloop_io_new( if ((select((SELECT_TYPE_ARG1) fd, NULL, NULL, SELECT_TYPE_ARG234 &xset, SELECT_TYPE_ARG5 &tv) == -1) && (WSAGetLastError() == WSAENOTSOCK)) { - pa_log_warn("WARNING: cannot monitor non-socket file descriptors."); + pa_log_warn("Cannot monitor non-socket file descriptors."); e->dead = 1; } } @@ -208,12 +208,12 @@ static pa_io_event* mainloop_io_new( } 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) @@ -225,8 +225,8 @@ static void mainloop_io_enable(pa_io_event *e, pa_io_event_flags_t events) { } 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 ++; @@ -238,8 +238,8 @@ static void mainloop_io_free(pa_io_event *e) { } 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; } @@ -252,12 +252,12 @@ static pa_defer_event* mainloop_defer_new( 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; @@ -265,7 +265,7 @@ static pa_defer_event* mainloop_defer_new( e->enabled = 1; m->n_enabled_defer_events++; - + e->callback = callback; e->userdata = userdata; e->destroy_callback = NULL; @@ -278,36 +278,37 @@ static pa_defer_event* mainloop_defer_new( } 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; } @@ -318,16 +319,16 @@ static pa_time_event* mainloop_time_new( 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; @@ -339,7 +340,7 @@ static pa_time_event* mainloop_time_new( 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; @@ -354,16 +355,16 @@ static pa_time_event* mainloop_time_new( 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++; @@ -374,8 +375,8 @@ static void mainloop_time_restart(pa_time_event *e, const struct timeval *tv) { } 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) @@ -383,26 +384,27 @@ static void mainloop_time_restart(pa_time_event *e, const struct timeval *tv) { } 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; } @@ -411,15 +413,15 @@ static void mainloop_time_set_destroy(pa_time_event *e, pa_time_event_destroy_cb 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, @@ -432,12 +434,12 @@ static const pa_mainloop_api vtable = { .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, }; @@ -453,8 +455,10 @@ pa_mainloop *pa_mainloop_new(void) { 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); @@ -466,7 +470,7 @@ pa_mainloop *pa_mainloop_new(void) { m->cached_next_time_event = NULL; m->prepared_timeout = 0; - + m->pollfds = NULL; m->max_pollfds = m->n_pollfds = 0; m->rebuild_pollfds = 1; @@ -481,7 +485,7 @@ pa_mainloop *pa_mainloop_new(void) { m->poll_func = NULL; m->poll_func_userdata = NULL; m->poll_func_ret = -1; - + return m; } @@ -494,18 +498,18 @@ static void cleanup_io_events(pa_mainloop *m, int force) { 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; @@ -514,7 +518,7 @@ static void cleanup_io_events(pa_mainloop *m, int force) { 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) { @@ -526,30 +530,31 @@ 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) { @@ -561,35 +566,36 @@ 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); @@ -597,16 +603,13 @@ void pa_mainloop_free(pa_mainloop* m) { 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); @@ -663,13 +666,14 @@ static int dispatch_pollfds(pa_mainloop *m) { 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++; @@ -690,8 +694,8 @@ static int dispatch_defer(pa_mainloop *m) { 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++; } @@ -701,11 +705,11 @@ static int dispatch_defer(pa_mainloop *m) { 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) @@ -733,11 +737,11 @@ static int calc_next_timeout(pa_mainloop *m) { 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) @@ -751,7 +755,7 @@ static int dispatch_timeout(pa_mainloop *m) { pa_time_event *e; struct timeval now; int r = 0; - assert(m); + pa_assert(m); if (m->n_enabled_time_events <= 0) return 0; @@ -759,12 +763,12 @@ static int dispatch_timeout(pa_mainloop *m) { 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); @@ -780,7 +784,7 @@ static int dispatch_timeout(pa_mainloop *m) { 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); @@ -791,7 +795,7 @@ void pa_mainloop_wakeup(pa_mainloop *m) { static void clear_wakeup(pa_mainloop *m) { char c[10]; - assert(m); + pa_assert(m); if (m->wakeup_pipe[0] < 0) return; @@ -803,8 +807,8 @@ static void clear_wakeup(pa_mainloop *m) { } 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); @@ -815,7 +819,7 @@ int pa_mainloop_prepare(pa_mainloop *m, int timeout) { 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; @@ -830,8 +834,8 @@ quit: } 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; @@ -841,8 +845,8 @@ int pa_mainloop_poll(pa_mainloop *m) { 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 @@ -867,28 +871,28 @@ quit: 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; @@ -899,13 +903,13 @@ quit: } 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; @@ -919,7 +923,7 @@ int pa_mainloop_iterate(pa_mainloop *m, int block, int *retval) { return r; quit: - + if ((r == -2) && retval) *retval = pa_mainloop_get_retval(m); return r; @@ -927,7 +931,7 @@ quit: int pa_mainloop_run(pa_mainloop *m, int *retval) { int r; - + while ((r = pa_mainloop_iterate(m, 1, retval)) >= 0); if (r == -2) @@ -939,7 +943,7 @@ int pa_mainloop_run(pa_mainloop *m, int *retval) { } void pa_mainloop_quit(pa_mainloop *m, int retval) { - assert(m); + pa_assert(m); m->quit = 1; m->retval = retval; @@ -947,12 +951,12 @@ void pa_mainloop_quit(pa_mainloop *m, int 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; |