mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-12-16 08:56:40 -05:00
rename src to polyp
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@90 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering
parent
563201e128
commit
41f6aea8fd
125 changed files with 0 additions and 0 deletions
553
polyp/mainloop.c
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553
polyp/mainloop.c
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/poll.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "mainloop.h"
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#include "util.h"
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#include "idxset.h"
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struct mainloop_source_header {
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struct pa_mainloop *mainloop;
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int dead;
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};
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struct mainloop_source_io {
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struct mainloop_source_header header;
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int fd;
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enum pa_mainloop_api_io_events events;
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void (*callback) (struct pa_mainloop_api*a, void *id, int fd, enum pa_mainloop_api_io_events events, void *userdata);
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void *userdata;
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struct pollfd *pollfd;
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};
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struct mainloop_source_fixed_or_idle {
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struct mainloop_source_header header;
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int enabled;
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void (*callback)(struct pa_mainloop_api*a, void *id, void *userdata);
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void *userdata;
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};
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struct mainloop_source_time {
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struct mainloop_source_header header;
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int enabled;
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struct timeval timeval;
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void (*callback)(struct pa_mainloop_api*a, void *id, const struct timeval*tv, void *userdata);
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void *userdata;
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};
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struct pa_mainloop {
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struct pa_idxset *io_sources, *fixed_sources, *idle_sources, *time_sources;
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int io_sources_scan_dead, fixed_sources_scan_dead, idle_sources_scan_dead, time_sources_scan_dead;
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struct pollfd *pollfds;
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unsigned max_pollfds, n_pollfds;
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int rebuild_pollfds;
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int quit, running, retval;
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struct pa_mainloop_api api;
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};
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static void setup_api(struct pa_mainloop *m);
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struct pa_mainloop *pa_mainloop_new(void) {
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struct pa_mainloop *m;
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m = malloc(sizeof(struct pa_mainloop));
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assert(m);
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m->io_sources = pa_idxset_new(NULL, NULL);
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m->fixed_sources = pa_idxset_new(NULL, NULL);
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m->idle_sources = pa_idxset_new(NULL, NULL);
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m->time_sources = pa_idxset_new(NULL, NULL);
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assert(m->io_sources && m->fixed_sources && m->idle_sources && m->time_sources);
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m->io_sources_scan_dead = m->fixed_sources_scan_dead = m->idle_sources_scan_dead = m->time_sources_scan_dead = 0;
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m->pollfds = NULL;
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m->max_pollfds = m->n_pollfds = m->rebuild_pollfds = 0;
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m->quit = m->running = m->retval = 0;
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setup_api(m);
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return m;
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}
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static int foreach(void *p, uint32_t index, int *del, void*userdata) {
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struct mainloop_source_header *h = p;
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int *all = userdata;
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assert(p && del && all);
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if (*all || h->dead) {
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free(h);
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*del = 1;
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}
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return 0;
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};
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void pa_mainloop_free(struct pa_mainloop* m) {
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int all = 1;
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assert(m);
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pa_idxset_foreach(m->io_sources, foreach, &all);
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pa_idxset_foreach(m->fixed_sources, foreach, &all);
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pa_idxset_foreach(m->idle_sources, foreach, &all);
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pa_idxset_foreach(m->time_sources, foreach, &all);
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pa_idxset_free(m->io_sources, NULL, NULL);
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pa_idxset_free(m->fixed_sources, NULL, NULL);
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pa_idxset_free(m->idle_sources, NULL, NULL);
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pa_idxset_free(m->time_sources, NULL, NULL);
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free(m->pollfds);
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free(m);
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}
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static void scan_dead(struct pa_mainloop *m) {
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int all = 0;
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assert(m);
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if (m->io_sources_scan_dead)
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pa_idxset_foreach(m->io_sources, foreach, &all);
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if (m->fixed_sources_scan_dead)
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pa_idxset_foreach(m->fixed_sources, foreach, &all);
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if (m->idle_sources_scan_dead)
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pa_idxset_foreach(m->idle_sources, foreach, &all);
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if (m->time_sources_scan_dead)
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pa_idxset_foreach(m->time_sources, foreach, &all);
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}
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static void rebuild_pollfds(struct pa_mainloop *m) {
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struct mainloop_source_io*s;
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struct pollfd *p;
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uint32_t index = PA_IDXSET_INVALID;
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unsigned l;
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l = pa_idxset_ncontents(m->io_sources);
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if (m->max_pollfds < l) {
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m->pollfds = realloc(m->pollfds, sizeof(struct pollfd)*l);
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m->max_pollfds = l;
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}
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m->n_pollfds = 0;
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p = m->pollfds;
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for (s = pa_idxset_first(m->io_sources, &index); s; s = pa_idxset_next(m->io_sources, &index)) {
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if (s->header.dead) {
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s->pollfd = NULL;
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continue;
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}
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s->pollfd = p;
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p->fd = s->fd;
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p->events = ((s->events & PA_MAINLOOP_API_IO_EVENT_INPUT) ? POLLIN : 0) | ((s->events & PA_MAINLOOP_API_IO_EVENT_OUTPUT) ? POLLOUT : 0);
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p->revents = 0;
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p++;
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m->n_pollfds++;
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}
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}
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static void dispatch_pollfds(struct pa_mainloop *m) {
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uint32_t index = PA_IDXSET_INVALID;
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struct mainloop_source_io *s;
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for (s = pa_idxset_first(m->io_sources, &index); s; s = pa_idxset_next(m->io_sources, &index)) {
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if (s->header.dead || !s->pollfd || !s->pollfd->revents)
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continue;
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assert(s->pollfd->fd == s->fd && s->callback);
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s->callback(&m->api, s, s->fd,
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((s->pollfd->revents & POLLHUP) ? PA_MAINLOOP_API_IO_EVENT_HUP : 0) |
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((s->pollfd->revents & POLLIN) ? PA_MAINLOOP_API_IO_EVENT_INPUT : 0) |
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((s->pollfd->revents & POLLOUT) ? PA_MAINLOOP_API_IO_EVENT_OUTPUT : 0), s->userdata);
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s->pollfd->revents = 0;
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}
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}
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static void run_fixed_or_idle(struct pa_mainloop *m, struct pa_idxset *i) {
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uint32_t index = PA_IDXSET_INVALID;
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struct mainloop_source_fixed_or_idle *s;
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for (s = pa_idxset_first(i, &index); s; s = pa_idxset_next(i, &index)) {
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if (s->header.dead || !s->enabled)
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continue;
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assert(s->callback);
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s->callback(&m->api, s, s->userdata);
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}
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}
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static int calc_next_timeout(struct pa_mainloop *m) {
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uint32_t index = PA_IDXSET_INVALID;
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struct mainloop_source_time *s;
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struct timeval now;
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int t = -1;
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if (pa_idxset_isempty(m->time_sources))
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return -1;
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gettimeofday(&now, NULL);
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for (s = pa_idxset_first(m->time_sources, &index); s; s = pa_idxset_next(m->time_sources, &index)) {
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int tmp;
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if (s->header.dead || !s->enabled)
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continue;
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if (s->timeval.tv_sec < now.tv_sec || (s->timeval.tv_sec == now.tv_sec && s->timeval.tv_usec <= now.tv_usec))
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return 0;
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tmp = (s->timeval.tv_sec - now.tv_sec)*1000;
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if (s->timeval.tv_usec > now.tv_usec)
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tmp += (s->timeval.tv_usec - now.tv_usec)/1000;
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else
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tmp -= (now.tv_usec - s->timeval.tv_usec)/1000;
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if (tmp == 0)
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return 0;
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else if (t == -1 || tmp < t)
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t = tmp;
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}
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return t;
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}
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static void dispatch_timeout(struct pa_mainloop *m) {
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uint32_t index = PA_IDXSET_INVALID;
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struct mainloop_source_time *s;
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struct timeval now;
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assert(m);
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if (pa_idxset_isempty(m->time_sources))
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return;
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gettimeofday(&now, NULL);
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for (s = pa_idxset_first(m->time_sources, &index); s; s = pa_idxset_next(m->time_sources, &index)) {
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if (s->header.dead || !s->enabled)
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continue;
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if (s->timeval.tv_sec < now.tv_sec || (s->timeval.tv_sec == now.tv_sec && s->timeval.tv_usec <= now.tv_usec)) {
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assert(s->callback);
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s->enabled = 0;
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s->callback(&m->api, s, &s->timeval, s->userdata);
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}
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}
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}
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static int any_idle_sources(struct pa_mainloop *m) {
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struct mainloop_source_fixed_or_idle *s;
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uint32_t index;
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assert(m);
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for (s = pa_idxset_first(m->idle_sources, &index); s; s = pa_idxset_next(m->idle_sources, &index))
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if (!s->header.dead && s->enabled)
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return 1;
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return 0;
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}
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int pa_mainloop_iterate(struct pa_mainloop *m, int block, int *retval) {
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int r, idle;
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assert(m && !m->running);
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if(m->quit) {
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if (retval)
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*retval = m->retval;
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return 1;
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}
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m->running = 1;
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scan_dead(m);
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run_fixed_or_idle(m, m->fixed_sources);
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if (m->rebuild_pollfds) {
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rebuild_pollfds(m);
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m->rebuild_pollfds = 0;
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}
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idle = any_idle_sources(m);
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do {
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int t;
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if (!block || idle)
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t = 0;
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else
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t = calc_next_timeout(m);
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r = poll(m->pollfds, m->n_pollfds, t);
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} while (r < 0 && errno == EINTR);
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dispatch_timeout(m);
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if (r > 0)
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dispatch_pollfds(m);
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else if (r == 0 && idle)
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run_fixed_or_idle(m, m->idle_sources);
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else if (r < 0)
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fprintf(stderr, "select(): %s\n", strerror(errno));
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m->running = 0;
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return r < 0 ? -1 : 0;
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}
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int pa_mainloop_run(struct pa_mainloop *m, int *retval) {
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int r;
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while ((r = pa_mainloop_iterate(m, 1, retval)) == 0);
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return r;
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}
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void pa_mainloop_quit(struct pa_mainloop *m, int r) {
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assert(m);
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m->quit = r;
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}
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/* IO sources */
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static void* mainloop_source_io(struct pa_mainloop_api*a, int fd, enum pa_mainloop_api_io_events events, void (*callback) (struct pa_mainloop_api*a, void *id, int fd, enum pa_mainloop_api_io_events events, void *userdata), void *userdata) {
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struct pa_mainloop *m;
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struct mainloop_source_io *s;
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assert(a && a->userdata && fd >= 0 && callback);
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m = a->userdata;
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assert(a == &m->api);
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s = malloc(sizeof(struct mainloop_source_io));
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assert(s);
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s->header.mainloop = m;
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s->header.dead = 0;
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s->fd = fd;
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s->events = events;
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s->callback = callback;
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s->userdata = userdata;
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s->pollfd = NULL;
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pa_idxset_put(m->io_sources, s, NULL);
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m->rebuild_pollfds = 1;
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return s;
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}
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static void mainloop_enable_io(struct pa_mainloop_api*a, void* id, enum pa_mainloop_api_io_events events) {
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struct pa_mainloop *m;
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struct mainloop_source_io *s = id;
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assert(a && a->userdata && s && !s->header.dead);
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m = a->userdata;
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assert(a == &m->api && s->header.mainloop == m);
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s->events = events;
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if (s->pollfd)
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s->pollfd->events = ((s->events & PA_MAINLOOP_API_IO_EVENT_INPUT) ? POLLIN : 0) | ((s->events & PA_MAINLOOP_API_IO_EVENT_OUTPUT) ? POLLOUT : 0);
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}
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static void mainloop_cancel_io(struct pa_mainloop_api*a, void* id) {
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struct pa_mainloop *m;
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struct mainloop_source_io *s = id;
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assert(a && a->userdata && s && !s->header.dead);
|
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m = a->userdata;
|
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assert(a == &m->api && s->header.mainloop == m);
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s->header.dead = 1;
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m->io_sources_scan_dead = 1;
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m->rebuild_pollfds = 1;
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}
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|
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/* Fixed sources */
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static void* mainloop_source_fixed(struct pa_mainloop_api*a, void (*callback) (struct pa_mainloop_api*a, void *id, void *userdata), void *userdata) {
|
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struct pa_mainloop *m;
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struct mainloop_source_fixed_or_idle *s;
|
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assert(a && a->userdata && callback);
|
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m = a->userdata;
|
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assert(a == &m->api);
|
||||
|
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s = malloc(sizeof(struct mainloop_source_fixed_or_idle));
|
||||
assert(s);
|
||||
s->header.mainloop = m;
|
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s->header.dead = 0;
|
||||
|
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s->enabled = 1;
|
||||
s->callback = callback;
|
||||
s->userdata = userdata;
|
||||
|
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pa_idxset_put(m->fixed_sources, s, NULL);
|
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return s;
|
||||
}
|
||||
|
||||
static void mainloop_enable_fixed(struct pa_mainloop_api*a, void* id, int b) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_fixed_or_idle *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
s->enabled = b;
|
||||
}
|
||||
|
||||
static void mainloop_cancel_fixed(struct pa_mainloop_api*a, void* id) {
|
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struct pa_mainloop *m;
|
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struct mainloop_source_fixed_or_idle *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
s->header.dead = 1;
|
||||
m->fixed_sources_scan_dead = 1;
|
||||
}
|
||||
|
||||
/* Idle sources */
|
||||
static void* mainloop_source_idle(struct pa_mainloop_api*a, void (*callback) (struct pa_mainloop_api*a, void *id, void *userdata), void *userdata) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_fixed_or_idle *s;
|
||||
assert(a && a->userdata && callback);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
s = malloc(sizeof(struct mainloop_source_fixed_or_idle));
|
||||
assert(s);
|
||||
s->header.mainloop = m;
|
||||
s->header.dead = 0;
|
||||
|
||||
s->enabled = 1;
|
||||
s->callback = callback;
|
||||
s->userdata = userdata;
|
||||
|
||||
pa_idxset_put(m->idle_sources, s, NULL);
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||||
return s;
|
||||
}
|
||||
|
||||
static void mainloop_cancel_idle(struct pa_mainloop_api*a, void* id) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_fixed_or_idle *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
s->header.dead = 1;
|
||||
m->idle_sources_scan_dead = 1;
|
||||
}
|
||||
|
||||
/* Time sources */
|
||||
static void* mainloop_source_time(struct pa_mainloop_api*a, const struct timeval *tv, void (*callback) (struct pa_mainloop_api*a, void *id, const struct timeval *tv, void *userdata), void *userdata) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_time *s;
|
||||
assert(a && a->userdata && callback);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
s = malloc(sizeof(struct mainloop_source_time));
|
||||
assert(s);
|
||||
s->header.mainloop = m;
|
||||
s->header.dead = 0;
|
||||
|
||||
s->enabled = !!tv;
|
||||
if (tv)
|
||||
s->timeval = *tv;
|
||||
|
||||
s->callback = callback;
|
||||
s->userdata = userdata;
|
||||
|
||||
pa_idxset_put(m->time_sources, s, NULL);
|
||||
return s;
|
||||
}
|
||||
|
||||
static void mainloop_enable_time(struct pa_mainloop_api*a, void *id, const struct timeval *tv) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_time *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
if (tv) {
|
||||
s->enabled = 1;
|
||||
s->timeval = *tv;
|
||||
} else
|
||||
s->enabled = 0;
|
||||
}
|
||||
|
||||
static void mainloop_cancel_time(struct pa_mainloop_api*a, void* id) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_time *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
s->header.dead = 1;
|
||||
m->time_sources_scan_dead = 1;
|
||||
|
||||
}
|
||||
|
||||
static void mainloop_quit(struct pa_mainloop_api*a, int retval) {
|
||||
struct pa_mainloop *m;
|
||||
assert(a && a->userdata);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
m->quit = 1;
|
||||
m->retval = retval;
|
||||
}
|
||||
|
||||
static void setup_api(struct pa_mainloop *m) {
|
||||
assert(m);
|
||||
|
||||
m->api.userdata = m;
|
||||
m->api.source_io = mainloop_source_io;
|
||||
m->api.enable_io = mainloop_enable_io;
|
||||
m->api.cancel_io = mainloop_cancel_io;
|
||||
|
||||
m->api.source_fixed = mainloop_source_fixed;
|
||||
m->api.enable_fixed = mainloop_enable_fixed;
|
||||
m->api.cancel_fixed = mainloop_cancel_fixed;
|
||||
|
||||
m->api.source_idle = mainloop_source_idle;
|
||||
m->api.enable_idle = mainloop_enable_fixed; /* (!) */
|
||||
m->api.cancel_idle = mainloop_cancel_idle;
|
||||
|
||||
m->api.source_time = mainloop_source_time;
|
||||
m->api.enable_time = mainloop_enable_time;
|
||||
m->api.cancel_time = mainloop_cancel_time;
|
||||
|
||||
m->api.quit = mainloop_quit;
|
||||
}
|
||||
|
||||
struct pa_mainloop_api* pa_mainloop_get_api(struct pa_mainloop*m) {
|
||||
assert(m);
|
||||
return &m->api;
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue