[Spice-devel] [PATCH 01/16] worker: use glib main loop
Frediano Ziglio
fziglio at redhat.com
Thu Jan 28 08:18:51 PST 2016
>
> I've looked at this patch so many times now that it's hard to review it
> objectively anymore ;) But it looks good to me. I think we still want the
> follow-up patch that removes the pushing after this goes in, though.
>
> Acked-by: Jonathon Jongsma <jjongsma at redhat.com>
>
Merged!!!!
Time to celebrate!
Frediano
>
> On Wed, 2016-01-27 at 12:48 +0000, Frediano Ziglio wrote:
> > Use the glib mainloop instead of writing our own. The glib loop is both
> > cleaner to use and is more extensible. It is also very mature and
> > reduces the maintenance burden on the spice server.
> >
> > Signed-off-by: Marc-André Lureau <marcandre.lureau at gmail.com>
> > Signed-off-by: Jonathon Jongsma <jjongsma at redhat.com>
> > Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
> > ---
> > server/Makefile.am | 2 -
> > server/red-worker.c | 232 +++++++++++++--------------------------
> > server/spice_timer_queue.c | 267
> > --------------------------------------------
> > -
> > server/spice_timer_queue.h | 44 --------
> > 4 files changed, 76 insertions(+), 469 deletions(-)
> > delete mode 100644 server/spice_timer_queue.c
> > delete mode 100644 server/spice_timer_queue.h
> >
> > diff --git a/server/Makefile.am b/server/Makefile.am
> > index 92b716f..411a0d9 100644
> > --- a/server/Makefile.am
> > +++ b/server/Makefile.am
> > @@ -121,8 +121,6 @@ libserver_la_SOURCES = \
> > sound.h \
> > stat.h \
> > spicevmc.c \
> > - spice_timer_queue.c \
> > - spice_timer_queue.h \
> > zlib-encoder.c \
> > zlib-encoder.h \
> > image-cache.h \
> > diff --git a/server/red-worker.c b/server/red-worker.c
> > index 6196682..738a890 100644
> > --- a/server/red-worker.c
> > +++ b/server/red-worker.c
> > @@ -49,22 +49,14 @@
> >
> > #include "spice.h"
> > #include "red-worker.h"
> > -#include "spice_timer_queue.h"
> > #include "cursor-channel.h"
> > #include "tree.h"
> >
> > #define CMD_RING_POLL_TIMEOUT 10 //milli
> > #define CMD_RING_POLL_RETRIES 200
> >
> > -#define MAX_EVENT_SOURCES 20
> > #define INF_EVENT_WAIT ~0
> >
> > -struct SpiceWatch {
> > - struct RedWorker *worker;
> > - SpiceWatchFunc watch_func;
> > - void *watch_func_opaque;
> > -};
> > -
> > struct RedWorker {
> > pthread_t thread;
> > QXLInstance *qxl;
> > @@ -72,8 +64,7 @@ struct RedWorker {
> > SpiceWatch *dispatch_watch;
> > int running;
> > SpiceCoreInterfaceInternal core;
> > - struct pollfd poll_fds[MAX_EVENT_SOURCES];
> > - struct SpiceWatch watches[MAX_EVENT_SOURCES];
> > +
> > unsigned int event_timeout;
> >
> > DisplayChannel *display_channel;
> > @@ -509,84 +500,6 @@ static int
> > common_channel_config_socket(RedChannelClient
> > *rcc)
> > return TRUE;
> > }
> >
> > -static void worker_watch_update_mask(SpiceWatch *watch, int event_mask)
> > -{
> > - struct RedWorker *worker;
> > - int i;
> > -
> > - if (!watch) {
> > - return;
> > - }
> > -
> > - worker = watch->worker;
> > - i = watch - worker->watches;
> > -
> > - worker->poll_fds[i].events = 0;
> > - if (event_mask & SPICE_WATCH_EVENT_READ) {
> > - worker->poll_fds[i].events |= POLLIN;
> > - }
> > - if (event_mask & SPICE_WATCH_EVENT_WRITE) {
> > - worker->poll_fds[i].events |= POLLOUT;
> > - }
> > -}
> > -
> > -static SpiceWatch *worker_watch_add(const SpiceCoreInterfaceInternal
> > *iface,
> > - int fd, int event_mask, SpiceWatchFunc
> > func, void *opaque)
> > -{
> > - RedWorker *worker = SPICE_CONTAINEROF(iface, RedWorker, core);
> > - int i;
> > -
> > - /* Search for a free slot in our poll_fds & watches arrays */
> > - for (i = 0; i < MAX_EVENT_SOURCES; i++) {
> > - if (worker->poll_fds[i].fd == -1) {
> > - break;
> > - }
> > - }
> > - if (i == MAX_EVENT_SOURCES) {
> > - /* Since we are a channel core implementation, we always get
> > called
> > from
> > - red_channel_client_create(), so opaque always is our rcc */
> > - RedChannelClient *rcc = opaque;
> > - spice_warning("could not add a watch for channel type %u id %u",
> > - rcc->channel->type, rcc->channel->id);
> > - return NULL;
> > - }
> > -
> > - worker->poll_fds[i].fd = fd;
> > - worker->watches[i].worker = worker;
> > - worker->watches[i].watch_func = func;
> > - worker->watches[i].watch_func_opaque = opaque;
> > - worker_watch_update_mask(&worker->watches[i], event_mask);
> > -
> > - return &worker->watches[i];
> > -}
> > -
> > -static void worker_watch_remove(SpiceWatch *watch)
> > -{
> > - if (!watch) {
> > - return;
> > - }
> > -
> > - /* Note we don't touch the poll_fd here, to avoid the
> > - poll_fds/watches table entry getting re-used in the same
> > - red_worker_main loop over the fds as it is removed.
> > -
> > - This is done because re-using it while events were pending on
> > - the fd previously occupying the slot would lead to incorrectly
> > - calling the watch_func for the new fd. */
> > - memset(watch, 0, sizeof(SpiceWatch));
> > -}
> > -
> > -static const SpiceCoreInterfaceInternal worker_core_initializer = {
> > - .timer_add = spice_timer_queue_add,
> > - .timer_start = spice_timer_set,
> > - .timer_cancel = spice_timer_cancel,
> > - .timer_remove = spice_timer_remove,
> > -
> > - .watch_update_mask = worker_watch_update_mask,
> > - .watch_add = worker_watch_add,
> > - .watch_remove = worker_watch_remove,
> > -};
> > -
> > CommonChannelClient *common_channel_new_client(CommonChannel *common,
> > int size,
> > RedClient *client,
> > @@ -1530,18 +1443,81 @@ static void handle_dev_input(int fd, int event,
> > void
> > *opaque)
> > dispatcher_handle_recv_read(red_dispatcher_get_dispatcher(worker
> > ->red_dispatcher));
> > }
> >
> > +typedef struct RedWorkerSource {
> > + GSource source;
> > + RedWorker *worker;
> > +} RedWorkerSource;
> > +
> > +static gboolean worker_source_prepare(GSource *source, gint *p_timeout)
> > +{
> > + RedWorkerSource *wsource = SPICE_CONTAINEROF(source, RedWorkerSource,
> > source);
> > + RedWorker *worker = wsource->worker;
> > + unsigned int timeout;
> > +
> > + timeout = MIN(worker->event_timeout,
> > + display_channel_get_streams_timeout(worker
> > ->display_channel));
> > +
> > + *p_timeout = (timeout == INF_EVENT_WAIT) ? -1 : timeout;
> > + if (*p_timeout == 0)
> > + return TRUE;
> > +
> > + return FALSE;
> > +}
> > +
> > +static gboolean worker_source_check(GSource *source)
> > +{
> > + RedWorkerSource *wsource = SPICE_CONTAINEROF(source, RedWorkerSource,
> > source);
> > + RedWorker *worker = wsource->worker;
> > +
> > + return worker->running /* TODO && worker->pending_process */;
> > +}
> > +
> > +static gboolean worker_source_dispatch(GSource *source, GSourceFunc
> > callback,
> > + gpointer user_data)
> > +{
> > + RedWorkerSource *wsource = SPICE_CONTAINEROF(source, RedWorkerSource,
> > source);
> > + RedWorker *worker = wsource->worker;
> > + DisplayChannel *display = worker->display_channel;
> > + int ring_is_empty;
> > +
> > + /* during migration, in the dest, the display channel can be
> > initialized
> > + while the global lz data not since migrate data msg hasn't been
> > + received yet */
> > + /* TODO: why is this here, and not in display_channel_create */
> > + display_channel_free_glz_drawables_to_free(display);
> > +
> > + /* TODO: could use its own source */
> > + stream_timeout(display);
> > +
> > + worker->event_timeout = INF_EVENT_WAIT;
> > + red_process_cursor(worker, &ring_is_empty);
> > + red_process_display(worker, &ring_is_empty);
> > +
> > + /* TODO: remove me? that should be handled by watch out condition */
> > + red_push(worker);
> > +
> > + return TRUE;
> > +}
> > +
> > +/* cannot be const */
> > +static GSourceFuncs worker_source_funcs = {
> > + .prepare = worker_source_prepare,
> > + .check = worker_source_check,
> > + .dispatch = worker_source_dispatch,
> > +};
> > +
> > RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher *red_dispatcher)
> > {
> > QXLDevInitInfo init_info;
> > RedWorker *worker;
> > Dispatcher *dispatcher;
> > - int i;
> > const char *record_filename;
> >
> > qxl->st->qif->get_init_info(qxl, &init_info);
> >
> > worker = spice_new0(RedWorker, 1);
> > - worker->core = worker_core_initializer;
> > + worker->core = event_loop_core;
> > + worker->core.main_context = g_main_context_new();
> >
> > record_filename = getenv("SPICE_WORKER_RECORD_FILENAME");
> > if (record_filename) {
> > @@ -1575,15 +1551,17 @@ RedWorker* red_worker_new(QXLInstance *qxl,
> > RedDispatcher *red_dispatcher)
> > worker->wakeup_counter = stat_add_counter(worker->stat, "wakeups",
> > TRUE);
> > worker->command_counter = stat_add_counter(worker->stat, "commands",
> > TRUE);
> > #endif
> > - for (i = 0; i < MAX_EVENT_SOURCES; i++) {
> > - worker->poll_fds[i].fd = -1;
> > - }
> >
> > worker->dispatch_watch =
> > worker->core.watch_add(&worker->core,
> > dispatcher_get_recv_fd(dispatcher),
> > SPICE_WATCH_EVENT_READ, handle_dev_input,
> > worker);
> > spice_assert(worker->dispatch_watch != NULL);
> >
> > + GSource *source = g_source_new(&worker_source_funcs,
> > sizeof(RedWorkerSource));
> > + SPICE_CONTAINEROF(source, RedWorkerSource, source)->worker = worker;
> > + g_source_attach(source, worker->core.main_context);
> > + g_source_unref(source);
> > +
> > memslot_info_init(&worker->mem_slots,
> > init_info.num_memslots_groups,
> > init_info.num_memslots,
> > @@ -1611,73 +1589,15 @@ SPICE_GNUC_NORETURN static void
> > *red_worker_main(void
> > *arg)
> > spice_assert(MAX_PIPE_SIZE > WIDE_CLIENT_ACK_WINDOW &&
> > MAX_PIPE_SIZE > NARROW_CLIENT_ACK_WINDOW); //ensure wakeup by
> > ack
> > message
> >
> > - if (!spice_timer_queue_create()) {
> > - spice_error("failed to create timer queue");
> > - }
> > -
> > RED_CHANNEL(worker->cursor_channel)->thread_id = pthread_self();
> > RED_CHANNEL(worker->display_channel)->thread_id = pthread_self();
> >
> > - for (;;) {
> > - int i, num_events;
> > - unsigned int timeout;
> > -
> > - timeout = spice_timer_queue_get_timeout_ms();
> > - worker->event_timeout = MIN(timeout, worker->event_timeout);
> > - timeout = display_channel_get_streams_timeout(worker
> > ->display_channel);
> > - worker->event_timeout = MIN(timeout, worker->event_timeout);
> > - num_events = poll(worker->poll_fds, MAX_EVENT_SOURCES, worker
> > ->event_timeout);
> > - stream_timeout(worker->display_channel);
> > - spice_timer_queue_cb();
> > -
> > - if (worker->display_channel) {
> > - /* during migration, in the dest, the display channel can be
> > initialized
> > - while the global lz data not since migrate data msg hasn't
> > been
> > - received yet */
> > - display_channel_free_glz_drawables_to_free(worker
> > ->display_channel);
> > - }
> > -
> > - worker->event_timeout = INF_EVENT_WAIT;
> > - if (num_events == -1) {
> > - if (errno != EINTR) {
> > - spice_error("poll failed, %s", strerror(errno));
> > - }
> > - }
> > -
> > - for (i = 0; i < MAX_EVENT_SOURCES; i++) {
> > - /* The watch may have been removed by the watch-func from
> > - another fd (ie a disconnect through the dispatcher),
> > - in this case watch_func is NULL. */
> > - if (worker->poll_fds[i].revents &&
> > worker->watches[i].watch_func)
> > {
> > - int events = 0;
> > - if (worker->poll_fds[i].revents & POLLIN) {
> > - events |= SPICE_WATCH_EVENT_READ;
> > - }
> > - if (worker->poll_fds[i].revents & POLLOUT) {
> > - events |= SPICE_WATCH_EVENT_WRITE;
> > - }
> > - worker->watches[i].watch_func(worker->poll_fds[i].fd,
> > events,
> > - worker
> > ->watches[i].watch_func_opaque);
> > - }
> > - }
> > -
> > - /* Clear the poll_fd for any removed watches, see the comment in
> > - watch_remove for why we don't do this there. */
> > - for (i = 0; i < MAX_EVENT_SOURCES; i++) {
> > - if (!worker->watches[i].watch_func) {
> > - worker->poll_fds[i].fd = -1;
> > - }
> > - }
> > -
> > - if (worker->running) {
> > - int ring_is_empty;
> > - red_process_cursor(worker, &ring_is_empty);
> > - red_process_display(worker, &ring_is_empty);
> > - }
> > - red_push(worker);
> > - }
> > + GMainLoop *loop = g_main_loop_new(worker->core.main_context, FALSE);
> > + g_main_loop_run(loop);
> > + g_main_loop_unref(loop);
> >
> > - spice_warn_if_reached();
> > + /* FIXME: free worker, and join threads */
> > + exit(0);
> > }
> >
> > bool red_worker_run(RedWorker *worker)
> > diff --git a/server/spice_timer_queue.c b/server/spice_timer_queue.c
> > deleted file mode 100644
> > index 421b090..0000000
> > --- a/server/spice_timer_queue.c
> > +++ /dev/null
> > @@ -1,267 +0,0 @@
> > -/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> > -/*
> > - Copyright (C) 2013 Red Hat, Inc.
> > -
> > - This library is free software; you can redistribute it and/or
> > - modify it under the terms of the GNU Lesser General Public
> > - License as published by the Free Software Foundation; either
> > - version 2.1 of the License, or (at your option) any later version.
> > -
> > - This library 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
> > - Lesser General Public License for more details.
> > -
> > - You should have received a copy of the GNU Lesser General Public
> > - License along with this library; if not, see
> > <http://www.gnu.org/licenses/
> > >.
> > -*/
> > -#include <config.h>
> > -#include <pthread.h>
> > -#include "red-common.h"
> > -#include "spice_timer_queue.h"
> > -#include "common/ring.h"
> > -#include "utils.h"
> > -
> > -static Ring timer_queue_list;
> > -static int queue_count = 0;
> > -static pthread_mutex_t queue_list_lock = PTHREAD_MUTEX_INITIALIZER;
> > -
> > -static void spice_timer_queue_init(void)
> > -{
> > - ring_init(&timer_queue_list);
> > -}
> > -
> > -struct SpiceTimer {
> > - RingItem link;
> > - RingItem active_link;
> > -
> > - SpiceTimerFunc func;
> > - void *opaque;
> > -
> > - SpiceTimerQueue *queue;
> > -
> > - int is_active;
> > - uint32_t ms;
> > - uint64_t expiry_time;
> > -};
> > -
> > -struct SpiceTimerQueue {
> > - RingItem link;
> > - pthread_t thread;
> > - Ring timers;
> > - Ring active_timers;
> > -};
> > -
> > -static SpiceTimerQueue *spice_timer_queue_find(void)
> > -{
> > - pthread_t self = pthread_self();
> > - RingItem *queue_item;
> > -
> > - RING_FOREACH(queue_item, &timer_queue_list) {
> > - SpiceTimerQueue *queue = SPICE_CONTAINEROF(queue_item,
> > SpiceTimerQueue, link);
> > -
> > - if (pthread_equal(self, queue->thread) != 0) {
> > - return queue;
> > - }
> > - }
> > -
> > - return NULL;
> > -}
> > -
> > -static SpiceTimerQueue *spice_timer_queue_find_with_lock(void)
> > -{
> > - SpiceTimerQueue *queue;
> > -
> > - pthread_mutex_lock(&queue_list_lock);
> > - queue = spice_timer_queue_find();
> > - pthread_mutex_unlock(&queue_list_lock);
> > - return queue;
> > -}
> > -
> > -int spice_timer_queue_create(void)
> > -{
> > - SpiceTimerQueue *queue;
> > -
> > - pthread_mutex_lock(&queue_list_lock);
> > - if (queue_count == 0) {
> > - spice_timer_queue_init();
> > - }
> > -
> > - if (spice_timer_queue_find() != NULL) {
> > - spice_printerr("timer queue was already created for the thread");
> > - return FALSE;
> > - }
> > -
> > - queue = spice_new0(SpiceTimerQueue, 1);
> > - queue->thread = pthread_self();
> > - ring_init(&queue->timers);
> > - ring_init(&queue->active_timers);
> > -
> > - ring_add(&timer_queue_list, &queue->link);
> > - queue_count++;
> > -
> > - pthread_mutex_unlock(&queue_list_lock);
> > -
> > - return TRUE;
> > -}
> > -
> > -void spice_timer_queue_destroy(void)
> > -{
> > - RingItem *item;
> > - SpiceTimerQueue *queue;
> > -
> > - pthread_mutex_lock(&queue_list_lock);
> > - queue = spice_timer_queue_find();
> > -
> > - spice_assert(queue != NULL);
> > -
> > - while ((item = ring_get_head(&queue->timers))) {
> > - SpiceTimer *timer;
> > -
> > - timer = SPICE_CONTAINEROF(item, SpiceTimer, link);
> > - spice_timer_remove(timer);
> > - }
> > -
> > - ring_remove(&queue->link);
> > - free(queue);
> > - queue_count--;
> > -
> > - pthread_mutex_unlock(&queue_list_lock);
> > -}
> > -
> > -SpiceTimer *spice_timer_queue_add(const SpiceCoreInterfaceInternal *iface,
> > - SpiceTimerFunc func, void *opaque)
> > -{
> > - SpiceTimer *timer = spice_new0(SpiceTimer, 1);
> > - SpiceTimerQueue *queue = spice_timer_queue_find_with_lock();
> > -
> > - spice_assert(queue != NULL);
> > -
> > - ring_item_init(&timer->link);
> > - ring_item_init(&timer->active_link);
> > -
> > - timer->opaque = opaque;
> > - timer->func = func;
> > - timer->queue = queue;
> > -
> > - ring_add(&queue->timers, &timer->link);
> > -
> > - return timer;
> > -}
> > -
> > -static void _spice_timer_set(SpiceTimer *timer, uint32_t ms, uint64_t now)
> > -{
> > - RingItem *next_item;
> > - SpiceTimerQueue *queue;
> > -
> > - if (timer->is_active) {
> > - spice_timer_cancel(timer);
> > - }
> > -
> > - queue = timer->queue;
> > - timer->expiry_time = now + ms;
> > - timer->ms = ms;
> > -
> > - RING_FOREACH(next_item, &queue->active_timers) {
> > - SpiceTimer *next_timer = SPICE_CONTAINEROF(next_item, SpiceTimer,
> > active_link);
> > -
> > - if (timer->expiry_time <= next_timer->expiry_time) {
> > - break;
> > - }
> > - }
> > -
> > - if (next_item) {
> > - ring_add_before(&timer->active_link, next_item);
> > - } else {
> > - ring_add_before(&timer->active_link, &queue->active_timers);
> > - }
> > - timer->is_active = TRUE;
> > -}
> > -
> > -void spice_timer_set(SpiceTimer *timer, uint32_t ms)
> > -{
> > - spice_assert(pthread_equal(timer->queue->thread, pthread_self()) !=
> > 0);
> > -
> > - _spice_timer_set(timer, ms, spice_get_monotonic_time_ms());
> > -}
> > -
> > -void spice_timer_cancel(SpiceTimer *timer)
> > -{
> > - spice_assert(pthread_equal(timer->queue->thread, pthread_self()) !=
> > 0);
> > -
> > - if (!ring_item_is_linked(&timer->active_link)) {
> > - spice_assert(!timer->is_active);
> > - return;
> > - }
> > -
> > - spice_assert(timer->is_active);
> > - ring_remove(&timer->active_link);
> > - timer->is_active = FALSE;
> > -}
> > -
> > -void spice_timer_remove(SpiceTimer *timer)
> > -{
> > - spice_assert(timer->queue);
> > - spice_assert(ring_item_is_linked(&timer->link));
> > - spice_assert(pthread_equal(timer->queue->thread, pthread_self()) !=
> > 0);
> > -
> > - if (timer->is_active) {
> > - spice_assert(ring_item_is_linked(&timer->active_link));
> > - ring_remove(&timer->active_link);
> > - }
> > - ring_remove(&timer->link);
> > - free(timer);
> > -}
> > -
> > -unsigned int spice_timer_queue_get_timeout_ms(void)
> > -{
> > - int64_t now_ms;
> > - RingItem *head;
> > - SpiceTimer *head_timer;
> > - SpiceTimerQueue *queue = spice_timer_queue_find_with_lock();
> > -
> > - spice_assert(queue != NULL);
> > -
> > - if (ring_is_empty(&queue->active_timers)) {
> > - return -1;
> > - }
> > -
> > - head = ring_get_head(&queue->active_timers);
> > - head_timer = SPICE_CONTAINEROF(head, SpiceTimer, active_link);
> > -
> > - now_ms = spice_get_monotonic_time_ms();
> > -
> > - return MAX(0, ((int64_t)head_timer->expiry_time - now_ms));
> > -}
> > -
> > -
> > -void spice_timer_queue_cb(void)
> > -{
> > - uint64_t now_ms;
> > - RingItem *head;
> > - SpiceTimerQueue *queue = spice_timer_queue_find_with_lock();
> > -
> > - spice_assert(queue != NULL);
> > -
> > - if (ring_is_empty(&queue->active_timers)) {
> > - return;
> > - }
> > -
> > - now_ms = spice_get_monotonic_time_ms();
> > -
> > - while ((head = ring_get_head(&queue->active_timers))) {
> > - SpiceTimer *timer = SPICE_CONTAINEROF(head, SpiceTimer,
> > active_link);
> > -
> > - if (timer->expiry_time > now_ms) {
> > - break;
> > - } else {
> > - /* Remove active timer before calling the timer function.
> > - * Timer function could delete the timer making the timer
> > - * pointer point to freed data.
> > - */
> > - spice_timer_cancel(timer);
> > - timer->func(timer->opaque);
> > - /* timer could now be invalid ! */
> > - }
> > - }
> > -}
> > diff --git a/server/spice_timer_queue.h b/server/spice_timer_queue.h
> > deleted file mode 100644
> > index b17cecf..0000000
> > --- a/server/spice_timer_queue.h
> > +++ /dev/null
> > @@ -1,44 +0,0 @@
> > -/*
> > - Copyright (C) 2013 Red Hat, Inc.
> > -
> > - This library is free software; you can redistribute it and/or
> > - modify it under the terms of the GNU Lesser General Public
> > - License as published by the Free Software Foundation; either
> > - version 2.1 of the License, or (at your option) any later version.
> > -
> > - This library 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
> > - Lesser General Public License for more details.
> > -
> > - You should have received a copy of the GNU Lesser General Public
> > - License along with this library; if not, see
> > <http://www.gnu.org/licenses/
> > >.
> > -*/
> > -
> > -#ifndef _H_SPICE_TIMER_QUEUE
> > -#define _H_SPICE_TIMER_QUEUE
> > -
> > -#include <stdint.h>
> > -#include "spice.h"
> > -
> > -typedef struct SpiceTimerQueue SpiceTimerQueue;
> > -
> > -/* create/destroy a timer queue for the current thread.
> > - * In order to execute the timers functions, spice_timer_queue_cb should
> > be
> > called
> > - * periodically, according to spice_timer_queue_get_timeout_ms */
> > -int spice_timer_queue_create(void);
> > -void spice_timer_queue_destroy(void);
> > -
> > -SpiceTimer *spice_timer_queue_add(const SpiceCoreInterfaceInternal *iface,
> > - SpiceTimerFunc func, void *opaque);
> > -void spice_timer_set(SpiceTimer *timer, uint32_t ms);
> > -void spice_timer_cancel(SpiceTimer *timer);
> > -void spice_timer_remove(SpiceTimer *timer);
> > -
> > -/* returns the time left till the earliest timer in the queue expires.
> > - * returns (unsigned)-1 if there are no active timers */
> > -unsigned int spice_timer_queue_get_timeout_ms(void);
> > -/* call the timeout callbacks of all the expired timers */
> > -void spice_timer_queue_cb(void);
> > -
> > -#endif
>
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