mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-26 15:36:14 +01:00
f9faac7661
All glib/*.{c,h} files have been processed, as well as gtester-report.
12 of those files are not licensed under LGPL:
gbsearcharray.h
gconstructor.h
glibintl.h
gmirroringtable.h
gscripttable.h
gtranslit-data.h
gunibreak.h
gunichartables.h
gunicomp.h
gunidecomp.h
valgrind.h
win_iconv.c
Some of them are generated files, some are licensed under a BSD-style
license and win_iconv.c is in the public domain.
Sub-directories inside glib/:
deprecated/: processed in a previous commit
glib-mirroring-tab/: already LGPLv2.1+
gnulib/: not modified, the code is copied from gnulib
libcharset/: a copy
pcre/: a copy
tests/: processed in a previous commit
https://bugzilla.gnome.org/show_bug.cgi?id=776504
121 lines
4.0 KiB
C
121 lines
4.0 KiB
C
/* gpoll.h - poll(2) support
|
|
* Copyright (C) 2008 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 __G_POLL_H__
|
|
#define __G_POLL_H__
|
|
|
|
#if !defined (__GLIB_H_INSIDE__) && !defined (__G_MAIN_H__) && !defined (GLIB_COMPILATION)
|
|
#error "Only <glib.h> can be included directly."
|
|
#endif
|
|
|
|
#include <glibconfig.h>
|
|
#include <glib/gtypes.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* Any definitions using GPollFD or GPollFunc are primarily
|
|
* for Unix and not guaranteed to be the compatible on all
|
|
* operating systems on which GLib runs. Right now, the
|
|
* GLib does use these functions on Win32 as well, but interprets
|
|
* them in a fairly different way than on Unix. If you use
|
|
* these definitions, you are should be prepared to recode
|
|
* for different operating systems.
|
|
*
|
|
* Note that on systems with a working poll(2), that function is used
|
|
* in place of g_poll(). Thus g_poll() must have the same signature as
|
|
* poll(), meaning GPollFD must have the same layout as struct pollfd.
|
|
*
|
|
* On Win32, the fd in a GPollFD should be Win32 HANDLE (*not* a file
|
|
* descriptor as provided by the C runtime) that can be used by
|
|
* MsgWaitForMultipleObjects. This does *not* include file handles
|
|
* from CreateFile, SOCKETs, nor pipe handles. (But you can use
|
|
* WSAEventSelect to signal events when a SOCKET is readable).
|
|
*
|
|
* On Win32, fd can also be the special value G_WIN32_MSG_HANDLE to
|
|
* indicate polling for messages.
|
|
*
|
|
* But note that G_WIN32_MSG_HANDLE GPollFDs should not be used by GDK
|
|
* (GTK) programs, as GDK itself wants to read messages and convert them
|
|
* to GDK events.
|
|
*
|
|
* So, unless you really know what you are doing, it's best not to try
|
|
* to use the main loop polling stuff for your own needs on
|
|
* Windows.
|
|
*/
|
|
typedef struct _GPollFD GPollFD;
|
|
|
|
/**
|
|
* GPollFunc:
|
|
* @ufds: an array of #GPollFD elements
|
|
* @nfsd: the number of elements in @ufds
|
|
* @timeout_: the maximum time to wait for an event of the file descriptors.
|
|
* A negative value indicates an infinite timeout.
|
|
*
|
|
* Specifies the type of function passed to g_main_context_set_poll_func().
|
|
* The semantics of the function should match those of the poll() system call.
|
|
*
|
|
* Returns: the number of #GPollFD elements which have events or errors
|
|
* reported, or -1 if an error occurred.
|
|
*/
|
|
typedef gint (*GPollFunc) (GPollFD *ufds,
|
|
guint nfsd,
|
|
gint timeout_);
|
|
|
|
/**
|
|
* GPollFD:
|
|
* @fd: the file descriptor to poll (or a HANDLE on Win32)
|
|
* @events: a bitwise combination from #GIOCondition, specifying which
|
|
* events should be polled for. Typically for reading from a file
|
|
* descriptor you would use %G_IO_IN | %G_IO_HUP | %G_IO_ERR, and
|
|
* for writing you would use %G_IO_OUT | %G_IO_ERR.
|
|
* @revents: a bitwise combination of flags from #GIOCondition, returned
|
|
* from the poll() function to indicate which events occurred.
|
|
*
|
|
* Represents a file descriptor, which events to poll for, and which events
|
|
* occurred.
|
|
*/
|
|
struct _GPollFD
|
|
{
|
|
#if defined (G_OS_WIN32) && GLIB_SIZEOF_VOID_P == 8
|
|
#ifndef __GTK_DOC_IGNORE__
|
|
gint64 fd;
|
|
#endif
|
|
#else
|
|
gint fd;
|
|
#endif
|
|
gushort events;
|
|
gushort revents;
|
|
};
|
|
|
|
/**
|
|
* G_POLLFD_FORMAT:
|
|
*
|
|
* A format specifier that can be used in printf()-style format strings
|
|
* when printing the @fd member of a #GPollFD.
|
|
*/
|
|
/* defined in glibconfig.h */
|
|
|
|
GLIB_AVAILABLE_IN_ALL
|
|
gint
|
|
g_poll (GPollFD *fds,
|
|
guint nfds,
|
|
gint timeout);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __G_POLL_H__ */
|