From 41f6aea8fdbc744c13bc461056a2d694a5c4d06f Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 17 Jul 2004 14:12:30 +0000 Subject: rename src to polyp git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@90 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/mainloop.c | 553 --------------------------------------------------------- 1 file changed, 553 deletions(-) delete mode 100644 src/mainloop.c (limited to 'src/mainloop.c') 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 -#endif - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#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; -} - -- cgit