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-rw-r--r--src/mainloop.c553
1 files changed, 0 insertions, 553 deletions
diff --git a/src/mainloop.c b/src/mainloop.c
deleted file mode 100644
index b9eee86d..00000000
--- a/src/mainloop.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2 of the License,
- or (at your option) any later version.
-
- polypaudio 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 General Public License
- along with polypaudio; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdio.h>
-#include <signal.h>
-#include <unistd.h>
-#include <sys/poll.h>
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#include "mainloop.h"
-#include "util.h"
-#include "idxset.h"
-
-struct mainloop_source_header {
- struct pa_mainloop *mainloop;
- int dead;
-};
-
-struct mainloop_source_io {
- struct mainloop_source_header header;
-
- 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 pollfd *pollfd;
-};
-
-struct mainloop_source_fixed_or_idle {
- struct mainloop_source_header header;
- int enabled;
-
- void (*callback)(struct pa_mainloop_api*a, void *id, void *userdata);
- void *userdata;
-};
-
-struct mainloop_source_time {
- struct mainloop_source_header header;
- int enabled;
-
- struct timeval timeval;
- void (*callback)(struct pa_mainloop_api*a, void *id, const struct timeval*tv, void *userdata);
- void *userdata;
-};
-
-struct pa_mainloop {
- struct pa_idxset *io_sources, *fixed_sources, *idle_sources, *time_sources;
- int io_sources_scan_dead, fixed_sources_scan_dead, idle_sources_scan_dead, time_sources_scan_dead;
-
- struct pollfd *pollfds;
- unsigned max_pollfds, n_pollfds;
- int rebuild_pollfds;
-
- int quit, running, retval;
- struct pa_mainloop_api api;
-};
-
-static void setup_api(struct pa_mainloop *m);
-
-struct pa_mainloop *pa_mainloop_new(void) {
- struct pa_mainloop *m;
-
- m = malloc(sizeof(struct pa_mainloop));
- assert(m);
-
- m->io_sources = pa_idxset_new(NULL, NULL);
- m->fixed_sources = pa_idxset_new(NULL, NULL);
- m->idle_sources = pa_idxset_new(NULL, NULL);
- m->time_sources = pa_idxset_new(NULL, NULL);
-
- assert(m->io_sources && m->fixed_sources && m->idle_sources && m->time_sources);
-
- m->io_sources_scan_dead = m->fixed_sources_scan_dead = m->idle_sources_scan_dead = m->time_sources_scan_dead = 0;
-
- m->pollfds = NULL;
- m->max_pollfds = m->n_pollfds = m->rebuild_pollfds = 0;
-
- m->quit = m->running = m->retval = 0;
-
- setup_api(m);
-
- return m;
-}
-
-static int foreach(void *p, uint32_t index, int *del, void*userdata) {
- struct mainloop_source_header *h = p;
- int *all = userdata;
- assert(p && del && all);
-
- if (*all || h->dead) {
- free(h);
- *del = 1;
- }
-
- return 0;
-};
-
-void pa_mainloop_free(struct pa_mainloop* m) {
- int all = 1;
- assert(m);
- pa_idxset_foreach(m->io_sources, foreach, &all);
- pa_idxset_foreach(m->fixed_sources, foreach, &all);
- pa_idxset_foreach(m->idle_sources, foreach, &all);
- pa_idxset_foreach(m->time_sources, foreach, &all);
-
- pa_idxset_free(m->io_sources, NULL, NULL);
- pa_idxset_free(m->fixed_sources, NULL, NULL);
- pa_idxset_free(m->idle_sources, NULL, NULL);
- pa_idxset_free(m->time_sources, NULL, NULL);
-
- free(m->pollfds);
- free(m);
-}
-
-static void scan_dead(struct pa_mainloop *m) {
- int all = 0;
- assert(m);
- if (m->io_sources_scan_dead)
- pa_idxset_foreach(m->io_sources, foreach, &all);
- if (m->fixed_sources_scan_dead)
- pa_idxset_foreach(m->fixed_sources, foreach, &all);
- if (m->idle_sources_scan_dead)
- pa_idxset_foreach(m->idle_sources, foreach, &all);
- if (m->time_sources_scan_dead)
- pa_idxset_foreach(m->time_sources, foreach, &all);
-}
-
-static void rebuild_pollfds(struct pa_mainloop *m) {
- struct mainloop_source_io*s;
- struct pollfd *p;
- uint32_t index = PA_IDXSET_INVALID;
- unsigned l;
-
- l = pa_idxset_ncontents(m->io_sources);
- if (m->max_pollfds < l) {
- m->pollfds = realloc(m->pollfds, sizeof(struct pollfd)*l);
- m->max_pollfds = l;
- }
-
- m->n_pollfds = 0;
- p = m->pollfds;
- for (s = pa_idxset_first(m->io_sources, &index); s; s = pa_idxset_next(m->io_sources, &index)) {
- if (s->header.dead) {
- s->pollfd = NULL;
- continue;
- }
-
- s->pollfd = p;
- p->fd = s->fd;
- p->events = ((s->events & PA_MAINLOOP_API_IO_EVENT_INPUT) ? POLLIN : 0) | ((s->events & PA_MAINLOOP_API_IO_EVENT_OUTPUT) ? POLLOUT : 0);
- p->revents = 0;
-
- p++;
- m->n_pollfds++;
- }
-}
-
-static void dispatch_pollfds(struct pa_mainloop *m) {
- uint32_t index = PA_IDXSET_INVALID;
- struct mainloop_source_io *s;
-
- for (s = pa_idxset_first(m->io_sources, &index); s; s = pa_idxset_next(m->io_sources, &index)) {
- if (s->header.dead || !s->pollfd || !s->pollfd->revents)
- continue;
-
- assert(s->pollfd->fd == s->fd && s->callback);
- s->callback(&m->api, s, s->fd,
- ((s->pollfd->revents & POLLHUP) ? PA_MAINLOOP_API_IO_EVENT_HUP : 0) |
- ((s->pollfd->revents & POLLIN) ? PA_MAINLOOP_API_IO_EVENT_INPUT : 0) |
- ((s->pollfd->revents & POLLOUT) ? PA_MAINLOOP_API_IO_EVENT_OUTPUT : 0), s->userdata);
- s->pollfd->revents = 0;
- }
-}
-
-static void run_fixed_or_idle(struct pa_mainloop *m, struct pa_idxset *i) {
- uint32_t index = PA_IDXSET_INVALID;
- struct mainloop_source_fixed_or_idle *s;
-
- for (s = pa_idxset_first(i, &index); s; s = pa_idxset_next(i, &index)) {
- if (s->header.dead || !s->enabled)
- continue;
-
- assert(s->callback);
- s->callback(&m->api, s, s->userdata);
- }
-}
-
-static int calc_next_timeout(struct pa_mainloop *m) {
- uint32_t index = PA_IDXSET_INVALID;
- struct mainloop_source_time *s;
- struct timeval now;
- int t = -1;
-
- if (pa_idxset_isempty(m->time_sources))
- return -1;
-
- gettimeofday(&now, NULL);
-
- for (s = pa_idxset_first(m->time_sources, &index); s; s = pa_idxset_next(m->time_sources, &index)) {
- int tmp;
-
- if (s->header.dead || !s->enabled)
- continue;
-
- if (s->timeval.tv_sec < now.tv_sec || (s->timeval.tv_sec == now.tv_sec && s->timeval.tv_usec <= now.tv_usec))
- return 0;
-
- tmp = (s->timeval.tv_sec - now.tv_sec)*1000;
-
- if (s->timeval.tv_usec > now.tv_usec)
- tmp += (s->timeval.tv_usec - now.tv_usec)/1000;
- else
- tmp -= (now.tv_usec - s->timeval.tv_usec)/1000;
-
- if (tmp == 0)
- return 0;
- else if (t == -1 || tmp < t)
- t = tmp;
- }
-
- return t;
-}
-
-static void dispatch_timeout(struct pa_mainloop *m) {
- uint32_t index = PA_IDXSET_INVALID;
- struct mainloop_source_time *s;
- struct timeval now;
- assert(m);
-
- if (pa_idxset_isempty(m->time_sources))
- return;
-
- gettimeofday(&now, NULL);
- for (s = pa_idxset_first(m->time_sources, &index); s; s = pa_idxset_next(m->time_sources, &index)) {
-
- if (s->header.dead || !s->enabled)
- continue;
-
- if (s->timeval.tv_sec < now.tv_sec || (s->timeval.tv_sec == now.tv_sec && s->timeval.tv_usec <= now.tv_usec)) {
- assert(s->callback);
-
- s->enabled = 0;
- s->callback(&m->api, s, &s->timeval, s->userdata);
- }
- }
-}
-
-static int any_idle_sources(struct pa_mainloop *m) {
- struct mainloop_source_fixed_or_idle *s;
- uint32_t index;
- assert(m);
-
- for (s = pa_idxset_first(m->idle_sources, &index); s; s = pa_idxset_next(m->idle_sources, &index))
- if (!s->header.dead && s->enabled)
- return 1;
-
- return 0;
-}
-
-int pa_mainloop_iterate(struct pa_mainloop *m, int block, int *retval) {
- int r, idle;
- assert(m && !m->running);
-
- if(m->quit) {
- if (retval)
- *retval = m->retval;
- return 1;
- }
-
- m->running = 1;
-
- scan_dead(m);
- run_fixed_or_idle(m, m->fixed_sources);
-
- if (m->rebuild_pollfds) {
- rebuild_pollfds(m);
- m->rebuild_pollfds = 0;
- }
-
- idle = any_idle_sources(m);
-
- do {
- 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 (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 r < 0 ? -1 : 0;
-}
-
-int pa_mainloop_run(struct pa_mainloop *m, int *retval) {
- int r;
- while ((r = pa_mainloop_iterate(m, 1, retval)) == 0);
- return r;
-}
-
-void pa_mainloop_quit(struct pa_mainloop *m, int r) {
- assert(m);
- m->quit = r;
-}
-
-/* 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);
-
- s = malloc(sizeof(struct mainloop_source_io));
- assert(s);
- s->header.mainloop = m;
- s->header.dead = 0;
-
- s->fd = fd;
- s->events = events;
- s->callback = callback;
- s->userdata = userdata;
- s->pollfd = NULL;
-
- pa_idxset_put(m->io_sources, s, NULL);
- m->rebuild_pollfds = 1;
- return s;
-}
-
-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->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;
- m->rebuild_pollfds = 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->enabled = 1;
- s->callback = callback;
- s->userdata = userdata;
-
- pa_idxset_put(m->fixed_sources, s, NULL);
- 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) {
- 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->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);
- 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;
-}
-
generated by cgit (git 2.34.1) at 2024-05-04 14:19:50 +0000