mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-03 09:01:50 -05:00
main part of the native protocol
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@31 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering
parent
eecf602476
commit
acb25b3510
62 changed files with 2473 additions and 755 deletions
754
src/mainloop.c
754
src/mainloop.c
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@ -1,3 +1,4 @@
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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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@ -8,468 +9,515 @@
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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 {
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struct mainloop_source *next;
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struct mainloop *mainloop;
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enum mainloop_source_type type;
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int enabled;
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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 {
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int fd;
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enum mainloop_io_event events;
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void (*callback)(struct mainloop_source*s, int fd, enum mainloop_io_event event, void *userdata);
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struct pollfd pollfd;
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} io;
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struct {
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void (*callback)(struct mainloop_source*s, void *userdata);
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} fixed;
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struct {
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void (*callback)(struct mainloop_source*s, void *userdata);
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} idle;
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struct {
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int sig;
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struct sigaction sigaction;
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void (*callback)(struct mainloop_source*s, int sig, void *userdata);
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} signal;
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struct pollfd *pollfd;
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};
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struct mainloop_source_list {
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struct mainloop_source *sources;
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int n_sources;
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int dead_sources;
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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 {
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struct mainloop_source_list io_sources, fixed_sources, idle_sources, signal_sources;
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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 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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int max_pollfds, n_pollfds;
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unsigned max_pollfds, n_pollfds;
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int rebuild_pollfds;
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int quit;
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int running;
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int signal_pipe[2];
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struct pollfd signal_pollfd;
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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 int signal_pipe = -1;
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static void setup_api(struct pa_mainloop *m);
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static void signal_func(int sig) {
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if (signal_pipe >= 0)
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write(signal_pipe, &sig, sizeof(sig));
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}
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struct pa_mainloop *pa_mainloop_new(void) {
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struct pa_mainloop *m;
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static void make_nonblock(int fd) {
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int v;
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if ((v = fcntl(fd, F_GETFL)) >= 0)
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fcntl(fd, F_SETFL, v|O_NONBLOCK);
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}
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struct mainloop *mainloop_new(void) {
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int r;
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struct mainloop *m;
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m = malloc(sizeof(struct mainloop));
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m = malloc(sizeof(struct pa_mainloop));
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assert(m);
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memset(m, 0, sizeof(struct mainloop));
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r = pipe(m->signal_pipe);
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assert(r >= 0 && m->signal_pipe[0] >= 0 && m->signal_pipe[1] >= 0);
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m->io_sources = idxset_new(NULL, NULL);
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m->fixed_sources = idxset_new(NULL, NULL);
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m->idle_sources = idxset_new(NULL, NULL);
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m->time_sources = idxset_new(NULL, NULL);
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make_nonblock(m->signal_pipe[0]);
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make_nonblock(m->signal_pipe[1]);
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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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signal_pipe = m->signal_pipe[1];
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m->signal_pollfd.fd = m->signal_pipe[0];
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m->signal_pollfd.events = POLLIN;
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m->signal_pollfd.revents = 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 void free_sources(struct mainloop_source_list *l, int all) {
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struct mainloop_source *s, *p;
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assert(l);
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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 && !l->dead_sources)
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return;
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p = NULL;
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s = l->sources;
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while (s) {
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if (all || s->dead) {
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struct mainloop_source *t = s;
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s = s->next;
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if (p)
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p->next = s;
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else
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l->sources = s;
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free(t);
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} else {
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p = s;
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s = s->next;
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}
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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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l->dead_sources = 0;
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return 0;
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};
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if (all) {
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assert(!l->sources);
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l->n_sources = 0;
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}
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}
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void mainloop_free(struct mainloop* m) {
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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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free_sources(&m->io_sources, 1);
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free_sources(&m->fixed_sources, 1);
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free_sources(&m->idle_sources, 1);
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free_sources(&m->signal_sources, 1);
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idxset_foreach(m->io_sources, foreach, &all);
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idxset_foreach(m->fixed_sources, foreach, &all);
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idxset_foreach(m->idle_sources, foreach, &all);
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idxset_foreach(m->time_sources, foreach, &all);
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idxset_free(m->io_sources, NULL, NULL);
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idxset_free(m->fixed_sources, NULL, NULL);
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idxset_free(m->idle_sources, NULL, NULL);
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idxset_free(m->time_sources, NULL, NULL);
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if (signal_pipe == m->signal_pipe[1])
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signal_pipe = -1;
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close(m->signal_pipe[0]);
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close(m->signal_pipe[1]);
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free(m->pollfds);
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free(m);
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}
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static void rebuild_pollfds(struct mainloop *m) {
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struct mainloop_source*s;
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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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idxset_foreach(m->io_sources, foreach, &all);
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if (m->fixed_sources_scan_dead)
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idxset_foreach(m->fixed_sources, foreach, &all);
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if (m->idle_sources_scan_dead)
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idxset_foreach(m->idle_sources, foreach, &all);
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if (m->time_sources_scan_dead)
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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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if (m->max_pollfds < m->io_sources.n_sources+1) {
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m->max_pollfds = (m->io_sources.n_sources+1)*2;
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m->pollfds = realloc(m->pollfds, sizeof(struct pollfd)*m->max_pollfds);
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uint32_t index = IDXSET_INVALID;
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unsigned l;
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l = 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 = m->io_sources.sources; s; s = s->next) {
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assert(s->type == MAINLOOP_SOURCE_TYPE_IO);
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if (!s->dead && s->enabled && s->io.events != MAINLOOP_IO_EVENT_NULL) {
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*(p++) = s->io.pollfd;
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m->n_pollfds++;
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for (s = idxset_first(m->io_sources, &index); s; s = 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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}
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*(p++) = m->signal_pollfd;
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m->n_pollfds++;
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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 mainloop *m) {
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int i;
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struct pollfd *p;
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struct mainloop_source *s;
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/* This loop assumes that m->sources and m->pollfds have the same
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* order and that m->pollfds is a subset of m->sources! */
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static void dispatch_pollfds(struct pa_mainloop *m) {
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uint32_t index = IDXSET_INVALID;
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struct mainloop_source_io *s;
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s = m->io_sources.sources;
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for (p = m->pollfds, i = 0; i < m->n_pollfds; p++, i++) {
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if (!p->revents)
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for (s = idxset_first(m->io_sources, &index); s; s = idxset_next(m->io_sources, &index)) {
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if (s->header.dead || !s->events || !s->pollfd || !s->pollfd->revents)
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continue;
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assert(s->pollfd->revents <= s->pollfd->events && s->pollfd->fd == s->fd && s->callback);
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s->callback(&m->api, s, s->fd, ((s->pollfd->revents & POLLIN) ? PA_MAINLOOP_API_IO_EVENT_INPUT : 0) | ((s->pollfd->revents & POLLOUT) ? PA_MAINLOOP_API_IO_EVENT_OUTPUT : 0), s->userdata);
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}
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}
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static void run_fixed_or_idle(struct pa_mainloop *m, struct idxset *i) {
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uint32_t index = IDXSET_INVALID;
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struct mainloop_source_fixed_or_idle *s;
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for (s = idxset_first(i, &index); s; s = idxset_next(i, &index)) {
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if (s->header.dead || !s->enabled)
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continue;
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if (p->fd == m->signal_pipe[0]) {
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/* Event from signal pipe */
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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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if (p->revents & POLLIN) {
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int sig;
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ssize_t r;
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r = read(m->signal_pipe[0], &sig, sizeof(sig));
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assert((r < 0 && errno == EAGAIN) || r == sizeof(sig));
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static int calc_next_timeout(struct pa_mainloop *m) {
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uint32_t index = 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 (idxset_isempty(m->time_sources))
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return -1;
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gettimeofday(&now, NULL);
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for (s = idxset_first(m->time_sources, &index); s; s = 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 (r == sizeof(sig)) {
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struct mainloop_source *l = m->signal_sources.sources;
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while (l) {
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assert(l->type == MAINLOOP_SOURCE_TYPE_SIGNAL);
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if (l->signal.sig == sig && l->enabled && !l->dead) {
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assert(l->signal.callback);
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l->signal.callback(l, sig, l->userdata);
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}
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l = l->next;
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}
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}
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}
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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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} else {
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/* Event from I/O source */
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if (tmp == 0)
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return 0;
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else if (tmp < t)
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t = tmp;
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}
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for (; s; s = s->next) {
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if (p->fd != s->io.fd)
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continue;
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assert(s->type == MAINLOOP_SOURCE_TYPE_IO);
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return t;
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}
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if (!s->dead && s->enabled) {
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enum mainloop_io_event e = (p->revents & POLLIN ? MAINLOOP_IO_EVENT_IN : 0) | (p->revents & POLLOUT ? MAINLOOP_IO_EVENT_OUT : 0);
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if (e) {
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assert(s->io.callback);
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s->io.callback(s, s->io.fd, e, s->userdata);
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}
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}
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static void dispatch_timeout(struct pa_mainloop *m) {
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uint32_t index = 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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break;
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}
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if (idxset_isempty(m->time_sources))
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return;
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gettimeofday(&now, NULL);
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for (s = idxset_first(m->time_sources, &index); s; s = 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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int mainloop_iterate(struct mainloop *m, int block) {
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struct mainloop_source *s;
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int c;
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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 = idxset_first(m->idle_sources, &index); s; s = 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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return m->quit;
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free_sources(&m->io_sources, 0);
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free_sources(&m->fixed_sources, 0);
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free_sources(&m->idle_sources, 0);
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free_sources(&m->signal_sources, 0);
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for (s = m->fixed_sources.sources; s; s = s->next) {
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assert(s->type == MAINLOOP_SOURCE_TYPE_FIXED);
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if (!s->dead && s->enabled) {
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assert(s->fixed.callback);
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s->fixed.callback(s, s->userdata);
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}
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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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m->running = 1;
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idle = any_idle_sources(m);
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do {
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c = poll(m->pollfds, m->n_pollfds, (block && !m->idle_sources.n_sources) ? -1 : 0);
|
||||
} while (c < 0 && errno == EINTR);
|
||||
|
||||
if (c > 0)
|
||||
int t;
|
||||
|
||||
if (!block || idle)
|
||||
t = 0;
|
||||
else
|
||||
t = calc_next_timeout(m);
|
||||
|
||||
r = poll(m->pollfds, m->n_pollfds, t);
|
||||
} while (r < 0 && errno == EINTR);
|
||||
|
||||
dispatch_timeout(m);
|
||||
|
||||
if (r > 0)
|
||||
dispatch_pollfds(m);
|
||||
else if (c == 0) {
|
||||
for (s = m->idle_sources.sources; s; s = s->next) {
|
||||
assert(s->type == MAINLOOP_SOURCE_TYPE_IDLE);
|
||||
if (!s->dead && s->enabled) {
|
||||
assert(s->idle.callback);
|
||||
s->idle.callback(s, s->userdata);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (r == 0 && idle)
|
||||
run_fixed_or_idle(m, m->idle_sources);
|
||||
else if (r < 0)
|
||||
fprintf(stderr, "select(): %s\n", strerror(errno));
|
||||
|
||||
m->running = 0;
|
||||
return c < 0 ? -1 : 0;
|
||||
return r < 0 ? -1 : 0;
|
||||
}
|
||||
|
||||
int mainloop_run(struct mainloop *m) {
|
||||
int pa_mainloop_run(struct pa_mainloop *m, int *retval) {
|
||||
int r;
|
||||
while (!(r = mainloop_iterate(m, 1)));
|
||||
while ((r = pa_mainloop_iterate(m, 1, retval)) == 0);
|
||||
return r;
|
||||
}
|
||||
|
||||
void mainloop_quit(struct mainloop *m, int r) {
|
||||
void pa_mainloop_quit(struct pa_mainloop *m, int r) {
|
||||
assert(m);
|
||||
m->quit = r;
|
||||
}
|
||||
|
||||
static struct mainloop_source_list* get_source_list(struct mainloop *m, enum mainloop_source_type type) {
|
||||
struct mainloop_source_list *l;
|
||||
|
||||
switch(type) {
|
||||
case MAINLOOP_SOURCE_TYPE_IO:
|
||||
l = &m->io_sources;
|
||||
break;
|
||||
case MAINLOOP_SOURCE_TYPE_FIXED:
|
||||
l = &m->fixed_sources;
|
||||
break;
|
||||
case MAINLOOP_SOURCE_TYPE_IDLE:
|
||||
l = &m->idle_sources;
|
||||
break;
|
||||
case MAINLOOP_SOURCE_TYPE_SIGNAL:
|
||||
l = &m->signal_sources;
|
||||
break;
|
||||
default:
|
||||
l = NULL;
|
||||
break;
|
||||
}
|
||||
|
||||
return l;
|
||||
}
|
||||
/* IO sources */
|
||||
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) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_io *s;
|
||||
assert(a && a->userdata && fd >= 0 && callback);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api);
|
||||
|
||||
static struct mainloop_source *source_new(struct mainloop*m, enum mainloop_source_type type) {
|
||||
struct mainloop_source_list *l;
|
||||
struct mainloop_source* s;
|
||||
assert(m);
|
||||
|
||||
s = malloc(sizeof(struct mainloop_source));
|
||||
s = malloc(sizeof(struct mainloop_source_io));
|
||||
assert(s);
|
||||
memset(s, 0, sizeof(struct mainloop_source));
|
||||
s->header.mainloop = m;
|
||||
s->header.dead = 0;
|
||||
|
||||
s->type = type;
|
||||
s->mainloop = m;
|
||||
|
||||
l = get_source_list(m, type);
|
||||
assert(l);
|
||||
|
||||
s->next = l->sources;
|
||||
l->sources = s;
|
||||
l->n_sources++;
|
||||
return s;
|
||||
}
|
||||
|
||||
struct mainloop_source* mainloop_source_new_io(struct mainloop*m, int fd, enum mainloop_io_event event, void (*callback)(struct mainloop_source*s, int fd, enum mainloop_io_event event, void *userdata), void *userdata) {
|
||||
struct mainloop_source* s;
|
||||
assert(m && fd>=0 && callback);
|
||||
|
||||
s = source_new(m, MAINLOOP_SOURCE_TYPE_IO);
|
||||
|
||||
s->io.fd = fd;
|
||||
s->io.events = event;
|
||||
s->io.callback = callback;
|
||||
s->fd = fd;
|
||||
s->events = events;
|
||||
s->callback = callback;
|
||||
s->userdata = userdata;
|
||||
s->io.pollfd.fd = fd;
|
||||
s->io.pollfd.events = (event & MAINLOOP_IO_EVENT_IN ? POLLIN : 0) | (event & MAINLOOP_IO_EVENT_OUT ? POLLOUT : 0);
|
||||
s->io.pollfd.revents = 0;
|
||||
|
||||
s->enabled = 1;
|
||||
s->pollfd = NULL;
|
||||
|
||||
idxset_put(m->io_sources, s, NULL);
|
||||
m->rebuild_pollfds = 1;
|
||||
return s;
|
||||
}
|
||||
|
||||
struct mainloop_source* mainloop_source_new_fixed(struct mainloop*m, void (*callback)(struct mainloop_source *s, void*userdata), void*userdata) {
|
||||
struct mainloop_source* s;
|
||||
assert(m && callback);
|
||||
static void mainloop_enable_io(struct pa_mainloop_api*a, void* id, enum pa_mainloop_api_io_events events) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_io *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api && s->header.mainloop == m);
|
||||
|
||||
s = source_new(m, MAINLOOP_SOURCE_TYPE_FIXED);
|
||||
s->events = events;
|
||||
if (s->pollfd)
|
||||
s->pollfd->events = ((s->events & PA_MAINLOOP_API_IO_EVENT_INPUT) ? POLLIN : 0) | ((s->events & PA_MAINLOOP_API_IO_EVENT_OUTPUT) ? POLLOUT : 0);
|
||||
}
|
||||
|
||||
static void mainloop_cancel_io(struct pa_mainloop_api*a, void* id) {
|
||||
struct pa_mainloop *m;
|
||||
struct mainloop_source_io *s = id;
|
||||
assert(a && a->userdata && s && !s->header.dead);
|
||||
m = a->userdata;
|
||||
assert(a == &m->api && s->header.mainloop == m);
|
||||
|
||||
s->header.dead = 1;
|
||||
m->io_sources_scan_dead = 1;
|
||||
}
|
||||
|
||||
/* Fixed sources */
|
||||
static void* mainloop_source_fixed(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->fixed.callback = callback;
|
||||
s->userdata = userdata;
|
||||
s->enabled = 1;
|
||||
s->callback = callback;
|
||||
s->userdata = userdata;
|
||||
|
||||
idxset_put(m->fixed_sources, s, NULL);
|
||||
return s;
|
||||
}
|
||||
|
||||
struct mainloop_source* mainloop_source_new_idle(struct mainloop*m, void (*callback)(struct mainloop_source *s, void*userdata), void*userdata) {
|
||||
struct mainloop_source* s;
|
||||
assert(m && callback);
|
||||
|
||||
s = source_new(m, MAINLOOP_SOURCE_TYPE_IDLE);
|
||||
|
||||
s->idle.callback = callback;
|
||||
s->userdata = userdata;
|
||||
s->enabled = 1;
|
||||
return s;
|
||||
}
|
||||
|
||||
struct mainloop_source* mainloop_source_new_signal(struct mainloop*m, int sig, void (*callback)(struct mainloop_source *s, int sig, void*userdata), void*userdata) {
|
||||
struct mainloop_source* s;
|
||||
struct sigaction save_sa, sa;
|
||||
|
||||
assert(m && callback);
|
||||
|
||||
memset(&sa, 0, sizeof(sa));
|
||||
sa.sa_handler = signal_func;
|
||||
sa.sa_flags = SA_RESTART;
|
||||
sigemptyset(&sa.sa_mask);
|
||||
|
||||
memset(&save_sa, 0, sizeof(save_sa));
|
||||
|
||||
if (sigaction(sig, &sa, &save_sa) < 0)
|
||||
return NULL;
|
||||
|
||||
s = source_new(m, MAINLOOP_SOURCE_TYPE_SIGNAL);
|
||||
s->signal.sig = sig;
|
||||
s->signal.sigaction = save_sa;
|
||||
|
||||
s->signal.callback = callback;
|
||||
s->userdata = userdata;
|
||||
s->enabled = 1;
|
||||
return s;
|
||||
}
|
||||
|
||||
void mainloop_source_free(struct mainloop_source*s) {
|
||||
struct mainloop_source_list *l;
|
||||
assert(s && !s->dead);
|
||||
s->dead = 1;
|
||||
|
||||
assert(s->mainloop);
|
||||
l = get_source_list(s->mainloop, s->type);
|
||||
assert(l);
|
||||
|
||||
l->n_sources--;
|
||||
l->dead_sources = 1;
|
||||
|
||||
if (s->type == MAINLOOP_SOURCE_TYPE_IO)
|
||||
s->mainloop->rebuild_pollfds = 1;
|
||||
else if (s->type == MAINLOOP_SOURCE_TYPE_SIGNAL)
|
||||
sigaction(s->signal.sig, &s->signal.sigaction, NULL);
|
||||
}
|
||||
|
||||
void mainloop_source_enable(struct mainloop_source*s, int b) {
|
||||
assert(s && !s->dead);
|
||||
|
||||
if (s->type == MAINLOOP_SOURCE_TYPE_IO && ((s->enabled && !b) || (!s->enabled && b))) {
|
||||
assert(s->mainloop);
|
||||
s->mainloop->rebuild_pollfds = 1;
|
||||
}
|
||||
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;
|
||||
}
|
||||
|
||||
void mainloop_source_io_set_events(struct mainloop_source*s, enum mainloop_io_event events) {
|
||||
assert(s && !s->dead && s->type == MAINLOOP_SOURCE_TYPE_IO);
|
||||
static void mainloop_cancel_fixed(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);
|
||||
|
||||
if (s->io.events != events) {
|
||||
assert(s->mainloop);
|
||||
s->mainloop->rebuild_pollfds = 1;
|
||||
}
|
||||
|
||||
s->io.events = events;
|
||||
s->io.pollfd.events = ((events & MAINLOOP_IO_EVENT_IN) ? POLLIN : 0) | ((events & MAINLOOP_IO_EVENT_OUT) ? POLLOUT : 0);
|
||||
s->header.dead = 1;
|
||||
m->fixed_sources_scan_dead = 1;
|
||||
}
|
||||
|
||||
struct mainloop *mainloop_source_get_mainloop(struct mainloop_source *s) {
|
||||
/* 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;
|
||||
|
||||
return s->mainloop;
|
||||
s->enabled = 1;
|
||||
s->callback = callback;
|
||||
s->userdata = userdata;
|
||||
|
||||
idxset_put(m->idle_sources, s, NULL);
|
||||
return s;
|
||||
}
|
||||
|
||||
struct once_info {
|
||||
void (*callback)(void *userdata);
|
||||
void *userdata;
|
||||
};
|
||||
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);
|
||||
|
||||
static void once_callback(struct mainloop_source *s, void *userdata) {
|
||||
struct once_info *i = userdata;
|
||||
assert(s && i && i->callback);
|
||||
i->callback(i->userdata);
|
||||
mainloop_source_free(s);
|
||||
free(i);
|
||||
s->header.dead = 1;
|
||||
m->idle_sources_scan_dead = 1;
|
||||
}
|
||||
|
||||
void mainloop_once(struct mainloop*m, void (*callback)(void *userdata), void *userdata) {
|
||||
struct once_info *i;
|
||||
assert(m && callback);
|
||||
/* 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);
|
||||
|
||||
i = malloc(sizeof(struct once_info));
|
||||
assert(i);
|
||||
i->callback = callback;
|
||||
i->userdata = userdata;
|
||||
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;
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
mainloop_source_new_fixed(m, once_callback, i);
|
||||
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