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b2593133b5
Windows doesn't seem to have an equivalent of POLLPRI so disabled those functions on this platform. This API can be used, for example, to wait for video4linux events which are using POLLPRI. https://bugzilla.gnome.org/show_bug.cgi?id=794977
133 lines
3.5 KiB
C
133 lines
3.5 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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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#define GST_POLL_FD_INIT { -1, -1 }
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GST_API
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GstPoll* gst_poll_new (gboolean controllable) G_GNUC_MALLOC;
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GST_API
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GstPoll* gst_poll_new_timer (void) G_GNUC_MALLOC;
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GST_API
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void gst_poll_free (GstPoll *set);
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GST_API
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void gst_poll_get_read_gpollfd (GstPoll *set, GPollFD *fd);
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GST_API
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void gst_poll_fd_init (GstPollFD *fd);
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GST_API
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gboolean gst_poll_add_fd (GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_remove_fd (GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_fd_ctl_write (GstPoll *set, GstPollFD *fd, gboolean active);
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GST_API
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gboolean gst_poll_fd_ctl_read (GstPoll *set, GstPollFD *fd, gboolean active);
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GST_API
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gboolean gst_poll_fd_ctl_pri (GstPoll *set, GstPollFD *fd, gboolean active);
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GST_API
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void gst_poll_fd_ignored (GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_fd_has_closed (const GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_fd_has_error (const GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_fd_can_read (const GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_fd_can_write (const GstPoll *set, GstPollFD *fd);
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GST_API
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gboolean gst_poll_fd_has_pri (const GstPoll *set, GstPollFD *fd);
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GST_API
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gint gst_poll_wait (GstPoll *set, GstClockTime timeout);
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GST_API
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gboolean gst_poll_set_controllable (GstPoll *set, gboolean controllable);
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GST_API
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void gst_poll_restart (GstPoll *set);
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GST_API
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void gst_poll_set_flushing (GstPoll *set, gboolean flushing);
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GST_API
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gboolean gst_poll_write_control (GstPoll *set);
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GST_API
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gboolean gst_poll_read_control (GstPoll *set) G_GNUC_WARN_UNUSED_RESULT;
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G_END_DECLS
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#endif /* __GST_POLL_H__ */
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