mirror of
https://gitlab.gnome.org/GNOME/glib.git
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e2fd4e2bd0
Tue Dec 5 12:23:04 2000 Owen Taylor <otaylor@redhat.com>
* gmain.[hc]: Major change in API for creating sources
to handle multiple main loops (GMainContext *).
GSources are now exposed as GSource * and implemented
with structure derivation.
* giochannel.[ch]: Changed vtable for GIOChannel to correspond
to the new mainloop API, add g_io_channel_create_watch().
* gtypes.h: Move GTimeVal here.
* gthread.h: Remove gmain.h include to avoid circularity.
* giounix.c: Update for new GMain API.
* giowin32.c: Update for new GMain API. (No check for
proper compilation or working.)
* timeloop.c timeloop-basic.c: A benchmarking program for
the main loop comparing the main loop against a
hand-written (timeloop-basic.c) variant.
* tests/mainloop-test.c: New torture test of mainloop.
* docs/Changes-2.0.txt: Started. Added text about
changes to GMain.
* gmain.c (g_main_add_poll_unlocked): Initial fd->revents
to zero. (#8482, Benjamin Kahn)
188 lines
6.1 KiB
C
188 lines
6.1 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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/*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __G_IOCHANNEL_H__
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#define __G_IOCHANNEL_H__
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#include <gmain.h>
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#include <gtypes.h>
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G_BEGIN_DECLS
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/* GIOChannel
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*/
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typedef struct _GIOChannel GIOChannel;
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typedef struct _GIOFuncs GIOFuncs;
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typedef enum
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{
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G_IO_ERROR_NONE,
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G_IO_ERROR_AGAIN,
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G_IO_ERROR_INVAL,
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G_IO_ERROR_UNKNOWN
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} GIOError;
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typedef enum
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{
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G_SEEK_CUR,
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G_SEEK_SET,
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G_SEEK_END
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} GSeekType;
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typedef enum
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{
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G_IO_IN GLIB_SYSDEF_POLLIN,
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G_IO_OUT GLIB_SYSDEF_POLLOUT,
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G_IO_PRI GLIB_SYSDEF_POLLPRI,
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G_IO_ERR GLIB_SYSDEF_POLLERR,
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G_IO_HUP GLIB_SYSDEF_POLLHUP,
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G_IO_NVAL GLIB_SYSDEF_POLLNVAL
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} GIOCondition;
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struct _GIOChannel
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{
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guint channel_flags;
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guint ref_count;
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GIOFuncs *funcs;
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};
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typedef gboolean (*GIOFunc) (GIOChannel *source,
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GIOCondition condition,
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gpointer data);
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struct _GIOFuncs
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{
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GIOError (*io_read) (GIOChannel *channel,
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gchar *buf,
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guint count,
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guint *bytes_read);
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GIOError (*io_write) (GIOChannel *channel,
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gchar *buf,
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guint count,
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guint *bytes_written);
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GIOError (*io_seek) (GIOChannel *channel,
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gint offset,
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GSeekType type);
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void (*io_close) (GIOChannel *channel);
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GSource * (*io_create_watch) (GIOChannel *channel,
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GIOCondition condition);
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void (*io_free) (GIOChannel *channel);
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};
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void g_io_channel_init (GIOChannel *channel);
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void g_io_channel_ref (GIOChannel *channel);
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void g_io_channel_unref (GIOChannel *channel);
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GIOError g_io_channel_read (GIOChannel *channel,
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gchar *buf,
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guint count,
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guint *bytes_read);
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GIOError g_io_channel_write (GIOChannel *channel,
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gchar *buf,
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guint count,
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guint *bytes_written);
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GIOError g_io_channel_seek (GIOChannel *channel,
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gint offset,
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GSeekType type);
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void g_io_channel_close (GIOChannel *channel);
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guint g_io_add_watch_full (GIOChannel *channel,
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gint priority,
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GIOCondition condition,
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GIOFunc func,
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gpointer user_data,
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GDestroyNotify notify);
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GSource *g_io_create_watch (GIOChannel *channel,
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GIOCondition condition);
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guint g_io_add_watch (GIOChannel *channel,
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GIOCondition condition,
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GIOFunc func,
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gpointer user_data);
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/* On Unix, IO channels created with this function for any file
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* descriptor or socket.
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*
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* On Win32, use this only for files opened with the MSVCRT (the
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* Microsoft run-time C library) _open() or _pipe, including file
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* descriptors 0, 1 and 2 (corresponding to stdin, stdout and stderr).
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*
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* The term file descriptor as used in the context of Win32 refers to
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* the emulated Unix-like file descriptors MSVCRT provides. The native
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* corresponding concept is file HANDLE. There isn't as of yet a way to
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* get GIOChannels for file HANDLEs.
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*/
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GIOChannel* g_io_channel_unix_new (int fd);
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gint g_io_channel_unix_get_fd (GIOChannel *channel);
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#ifdef G_OS_WIN32
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#define G_WIN32_MSG_HANDLE 19981206
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/* Use this to get a GPollFD from a GIOChannel, so that you can call
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* g_io_channel_win32_poll(). After calling this you should only use
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* g_io_channel_read() to read from the GIOChannel, i.e. never read()
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* or recv() from the underlying file descriptor or SOCKET.
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*/
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void g_io_channel_win32_make_pollfd (GIOChannel *channel,
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GIOCondition condition,
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GPollFD *fd);
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/* This can be used to wait a until at least one of the channels is readable.
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* On Unix you would do a select() on the file descriptors of the channels.
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* This should probably be available for all platforms?
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*/
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gint g_io_channel_win32_poll (GPollFD *fds,
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gint n_fds,
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gint timeout);
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/* This is used to add polling for Windows messages. GDK (GTk+) programs
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* should *not* use this.
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*/
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void g_main_poll_win32_msg_add (gint priority,
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GPollFD *fd,
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guint hwnd);
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/* An IO channel for Windows messages for window handle hwnd. */
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GIOChannel *g_io_channel_win32_new_messages (guint hwnd);
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/* An IO channel for C runtime (emulated Unix-like) file
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* descriptors. Identical to g_io_channel_unix_new above.
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* After calling g_io_add_watch() on a IO channel returned
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* by this function, you shouldn't call read() on the file
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* descriptor.
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*/
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GIOChannel* g_io_channel_win32_new_fd (int fd);
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/* Get the C runtime file descriptor of a channel. */
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gint g_io_channel_win32_get_fd (GIOChannel *channel);
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/* An IO channel for a SOCK_STREAM winsock socket. The parameter
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* should be a SOCKET. After calling g_io_add_watch() on a IO channel
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* returned by this function, you shouldn't call recv() on the SOCKET.
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*/
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GIOChannel *g_io_channel_win32_new_stream_socket (int socket);
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#endif
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G_END_DECLS
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#endif /* __G_IOCHANNEL_H__ */
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