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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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5cfb02af4a
Add a special timer mode in GstPoll that makes it only use the control socket with a timeout to schedule timeouts. Also add a pair of methods to wakeup the timeout thread. API: GstPoll::gst_poll_new_timer() API: GstPoll::gst_poll_write_control() API: GstPoll::gst_poll_read_control()
95 lines
3 KiB
C
95 lines
3 KiB
C
/* GStreamer
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* Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) 2004 Wim Taymans <wim.taymans@gmail.com>
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* Copyright (C) 2007 Peter Kjellerstedt <pkj@axis.com>
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*
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* gstpoll.h: File descriptor set
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_POLL_H__
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#define __GST_POLL_H__
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#include <glib.h>
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#include <glib-object.h>
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#include <gst/gstclock.h>
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G_BEGIN_DECLS
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/**
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* GstPoll:
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*
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* A set of file/network descriptors.
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*/
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typedef struct _GstPoll GstPoll;
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/**
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* GstPollFD:
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* @fd: a file descriptor
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*
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* A file descriptor object.
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*/
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typedef struct {
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int fd;
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/*< private >*/
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gint idx;
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} GstPollFD;
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/**
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* GST_POLL_FD_INIT:
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*
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* A #GstPollFD must be initialized with this macro, before it can be
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* used. This macro can used be to initialize a variable, but it cannot
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* be assigned to a variable. In that case you have to use
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* gst_poll_fd_init().
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*
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* Since: 0.10.18
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*/
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#define GST_POLL_FD_INIT { -1, -1 }
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GstPoll* gst_poll_new (gboolean controllable);
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GstPoll* gst_poll_new_timer (void);
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void gst_poll_free (GstPoll *set);
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void gst_poll_fd_init (GstPollFD *fd);
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gboolean gst_poll_add_fd (GstPoll *set, GstPollFD *fd);
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gboolean gst_poll_remove_fd (GstPoll *set, GstPollFD *fd);
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gboolean gst_poll_fd_ctl_write (GstPoll *set, GstPollFD *fd, gboolean active);
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gboolean gst_poll_fd_ctl_read (GstPoll *set, GstPollFD *fd, gboolean active);
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void gst_poll_fd_ignored (GstPoll *set, GstPollFD *fd);
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gboolean gst_poll_fd_has_closed (const GstPoll *set, GstPollFD *fd);
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gboolean gst_poll_fd_has_error (const GstPoll *set, GstPollFD *fd);
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gboolean gst_poll_fd_can_read (const GstPoll *set, GstPollFD *fd);
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gboolean gst_poll_fd_can_write (const GstPoll *set, GstPollFD *fd);
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gint gst_poll_wait (GstPoll *set, GstClockTime timeout);
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gboolean gst_poll_set_controllable (GstPoll *set, gboolean controllable);
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void gst_poll_restart (GstPoll *set);
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void gst_poll_set_flushing (GstPoll *set, gboolean flushing);
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gboolean gst_poll_write_control (GstPoll *set);
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gboolean gst_poll_read_control (GstPoll *set);
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G_END_DECLS
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#endif /* __GST_POLL_H__ */
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