| /* GLIB - Library of useful routines for C programming |
| * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
| * |
| * giowin32.c: IO Channels for Win32. |
| * Copyright 1998 Owen Taylor and Tor Lillqvist |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 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 |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| /* |
| * Modified by the GLib Team and others 1997-1999. See the AUTHORS |
| * file for a list of people on the GLib Team. See the ChangeLog |
| * files for a list of changes. These files are distributed with |
| * GLib at ftp://ftp.gtk.org/pub/gtk/. |
| */ |
| |
| |
| #include "config.h" |
| #include "glib.h" |
| #include <windows.h> |
| #include <winsock.h> /* Not everybody has winsock2 */ |
| #include <fcntl.h> |
| #include <io.h> |
| #include <errno.h> |
| #include <sys/types.h> |
| |
| #include <stdio.h> |
| |
| typedef struct _GIOWin32Channel GIOWin32Channel; |
| typedef struct _GIOWin32Watch GIOWin32Watch; |
| |
| guint g_pipe_readable_msg; |
| |
| typedef enum { |
| G_IO_WINDOWS_MESSAGES, /* Windows messages */ |
| G_IO_FILE_DESC, /* Unix-like file descriptors from _open*/ |
| G_IO_PIPE, /* pipe, with windows messages for signalling */ |
| G_IO_STREAM_SOCKET /* Stream sockets */ |
| } GIOWin32ChannelType; |
| |
| struct _GIOWin32Channel { |
| GIOChannel channel; |
| gint fd; /* Either a Unix-like file handle as provided |
| * by the Microsoft C runtime, or a SOCKET |
| * as provided by WinSock. |
| */ |
| GIOWin32ChannelType type; |
| |
| /* This is used by G_IO_WINDOWS_MESSAGES channels */ |
| HWND hwnd; /* handle of window, or NULL */ |
| |
| /* This is used by G_IO_PIPE channels */ |
| guint peer; /* thread id of reader */ |
| guint peer_fd; /* fd in the reader */ |
| guint offset; /* counter of accumulated bytes */ |
| guint need_wakeups; /* in output channels whether the |
| * reader needs wakeups |
| */ |
| }; |
| |
| struct _GIOWin32Watch { |
| GPollFD pollfd; |
| GIOChannel *channel; |
| GIOCondition condition; |
| GIOFunc callback; |
| }; |
| |
| static gboolean g_io_win32_msg_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout); |
| static gboolean g_io_win32_msg_check (gpointer source_data, |
| GTimeVal *current_time); |
| static gboolean g_io_win32_msg_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data); |
| |
| static gboolean g_io_win32_fd_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout); |
| static gboolean g_io_win32_fd_check (gpointer source_data, |
| GTimeVal *current_time); |
| static gboolean g_io_win32_fd_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data); |
| |
| static gboolean g_io_win32_pipe_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout); |
| static gboolean g_io_win32_pipe_check (gpointer source_data, |
| GTimeVal *current_time); |
| static gboolean g_io_win32_pipe_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data); |
| static void g_io_win32_pipe_destroy (gpointer source_data); |
| |
| static gboolean g_io_win32_sock_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout); |
| static gboolean g_io_win32_sock_check (gpointer source_data, |
| GTimeVal *current_time); |
| static gboolean g_io_win32_sock_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data); |
| |
| static void g_io_win32_destroy (gpointer source_data); |
| |
| static GIOError g_io_win32_msg_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| |
| static GIOError g_io_win32_msg_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static GIOError g_io_win32_msg_seek (GIOChannel *channel, |
| gint offset, |
| GSeekType type); |
| static void g_io_win32_msg_close (GIOChannel *channel); |
| static guint g_io_win32_msg_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify); |
| |
| static GIOError g_io_win32_fd_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static GIOError g_io_win32_fd_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static GIOError g_io_win32_fd_seek (GIOChannel *channel, |
| gint offset, |
| GSeekType type); |
| static void g_io_win32_fd_close (GIOChannel *channel); |
| |
| static void g_io_win32_free (GIOChannel *channel); |
| |
| static guint g_io_win32_fd_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify); |
| |
| static GIOError g_io_win32_no_seek (GIOChannel *channel, |
| gint offset, |
| GSeekType type); |
| |
| static GIOError g_io_win32_pipe_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static GIOError g_io_win32_pipe_write (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static void g_io_win32_pipe_close (GIOChannel *channel); |
| static guint g_io_win32_pipe_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify); |
| static void g_io_win32_pipe_free (GIOChannel *channel); |
| |
| static GIOError g_io_win32_sock_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static GIOError g_io_win32_sock_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written); |
| static void g_io_win32_sock_close (GIOChannel *channel); |
| static guint g_io_win32_sock_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify); |
| |
| GSourceFuncs win32_watch_msg_funcs = { |
| g_io_win32_msg_prepare, |
| g_io_win32_msg_check, |
| g_io_win32_msg_dispatch, |
| g_io_win32_destroy |
| }; |
| |
| GSourceFuncs win32_watch_fd_funcs = { |
| g_io_win32_fd_prepare, |
| g_io_win32_fd_check, |
| g_io_win32_fd_dispatch, |
| g_io_win32_destroy |
| }; |
| |
| GSourceFuncs win32_watch_pipe_funcs = { |
| g_io_win32_pipe_prepare, |
| g_io_win32_pipe_check, |
| g_io_win32_pipe_dispatch, |
| g_io_win32_pipe_destroy |
| }; |
| |
| GSourceFuncs win32_watch_sock_funcs = { |
| g_io_win32_sock_prepare, |
| g_io_win32_sock_check, |
| g_io_win32_sock_dispatch, |
| g_io_win32_destroy |
| }; |
| |
| GIOFuncs win32_channel_msg_funcs = { |
| g_io_win32_msg_read, |
| g_io_win32_msg_write, |
| g_io_win32_no_seek, |
| g_io_win32_msg_close, |
| g_io_win32_msg_add_watch, |
| g_io_win32_free |
| }; |
| |
| GIOFuncs win32_channel_fd_funcs = { |
| g_io_win32_fd_read, |
| g_io_win32_fd_write, |
| g_io_win32_fd_seek, |
| g_io_win32_fd_close, |
| g_io_win32_fd_add_watch, |
| g_io_win32_free |
| }; |
| |
| GIOFuncs win32_channel_pipe_funcs = { |
| g_io_win32_pipe_read, |
| g_io_win32_pipe_write, |
| g_io_win32_no_seek, |
| g_io_win32_pipe_close, |
| g_io_win32_pipe_add_watch, |
| g_io_win32_pipe_free |
| }; |
| |
| GIOFuncs win32_channel_sock_funcs = { |
| g_io_win32_sock_read, |
| g_io_win32_sock_write, |
| g_io_win32_no_seek, |
| g_io_win32_sock_close, |
| g_io_win32_sock_add_watch, |
| g_io_win32_free |
| }; |
| |
| #define N_WATCHED_PIPES 4 |
| |
| static struct { |
| gint fd; |
| GIOWin32Watch *watch; |
| GIOWin32Channel *channel; |
| gpointer user_data; |
| } watched_pipes[N_WATCHED_PIPES]; |
| |
| static gint n_watched_pipes = 0; |
| |
| static gboolean |
| g_io_win32_msg_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout) |
| { |
| GIOWin32Watch *data = source_data; |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) data->channel; |
| MSG msg; |
| |
| *timeout = -1; |
| |
| return PeekMessage (&msg, win32_channel->hwnd, 0, 0, PM_NOREMOVE) == TRUE; |
| } |
| |
| static gboolean |
| g_io_win32_msg_check (gpointer source_data, |
| GTimeVal *current_time) |
| { |
| GIOWin32Watch *data = source_data; |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) data->channel; |
| MSG msg; |
| |
| return PeekMessage (&msg, win32_channel->hwnd, 0, 0, PM_NOREMOVE) == TRUE; |
| } |
| |
| static gboolean |
| g_io_win32_msg_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data) |
| |
| { |
| GIOWin32Watch *data = source_data; |
| |
| return (*data->callback)(data->channel, |
| data->pollfd.revents & data->condition, |
| user_data); |
| } |
| |
| static void |
| g_io_win32_destroy (gpointer source_data) |
| { |
| GIOWin32Watch *data = source_data; |
| |
| g_main_remove_poll (&data->pollfd); |
| g_io_channel_unref (data->channel); |
| g_free (data); |
| } |
| |
| static gboolean |
| g_io_win32_fd_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout) |
| { |
| *timeout = -1; |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| g_io_win32_fd_check (gpointer source_data, |
| GTimeVal *current_time) |
| { |
| GIOWin32Watch *data = source_data; |
| |
| return (data->pollfd.revents & data->condition); |
| } |
| |
| static gboolean |
| g_io_win32_fd_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data) |
| |
| { |
| GIOWin32Watch *data = source_data; |
| |
| return (*data->callback)(data->channel, |
| data->pollfd.revents & data->condition, |
| user_data); |
| } |
| |
| static GIOError |
| g_io_win32_msg_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_read) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| MSG msg; /* In case of alignment problems */ |
| |
| if (count < sizeof (MSG)) |
| return G_IO_ERROR_INVAL; |
| |
| if (!PeekMessage (&msg, win32_channel->hwnd, 0, 0, PM_REMOVE)) |
| return G_IO_ERROR_AGAIN; |
| |
| memmove (buf, &msg, sizeof (MSG)); |
| *bytes_read = sizeof (MSG); |
| return G_IO_ERROR_NONE; |
| } |
| |
| static GIOError |
| g_io_win32_msg_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| MSG msg; |
| gint result; |
| |
| if (count != sizeof (MSG)) |
| return G_IO_ERROR_INVAL; |
| |
| /* In case of alignment problems */ |
| memmove (&msg, buf, sizeof (MSG)); |
| if (!PostMessage (win32_channel->hwnd, msg.message, msg.wParam, msg.lParam)) |
| return G_IO_ERROR_UNKNOWN; |
| |
| *bytes_written = sizeof (MSG); |
| return G_IO_ERROR_NONE; |
| } |
| |
| static GIOError |
| g_io_win32_no_seek (GIOChannel *channel, |
| gint offset, |
| GSeekType type) |
| { |
| g_warning ("g_io_win32_no_seek: unseekable IO channel type"); |
| return G_IO_ERROR_UNKNOWN; |
| } |
| |
| |
| static void |
| g_io_win32_msg_close (GIOChannel *channel) |
| { |
| /* Nothing to be done. Or should we set hwnd to some invalid value? */ |
| } |
| |
| static void |
| g_io_win32_free (GIOChannel *channel) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| g_free (win32_channel); |
| } |
| |
| static guint |
| g_io_win32_msg_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify) |
| { |
| GIOWin32Watch *watch = g_new (GIOWin32Watch, 1); |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| watch->channel = channel; |
| g_io_channel_ref (channel); |
| |
| watch->callback = func; |
| watch->condition = condition; |
| |
| watch->pollfd.fd = G_WIN32_MSG_HANDLE; |
| watch->pollfd.events = condition; |
| |
| g_main_add_poll (&watch->pollfd, priority); |
| |
| return g_source_add (priority, TRUE, &win32_watch_msg_funcs, |
| watch, user_data, notify); |
| } |
| |
| static gboolean |
| g_io_win32_pipe_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout) |
| { |
| *timeout = -1; |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| g_io_win32_pipe_check (gpointer source_data, |
| GTimeVal *current_time) |
| { |
| GIOWin32Watch *data = source_data; |
| return FALSE; |
| } |
| |
| static gboolean |
| g_io_win32_pipe_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data) |
| |
| { |
| GIOWin32Watch *data = source_data; |
| |
| return (*data->callback)(data->channel, |
| data->pollfd.revents & data->condition, |
| user_data); |
| } |
| |
| static void |
| g_io_win32_pipe_destroy (gpointer source_data) |
| { |
| GIOWin32Watch *data = source_data; |
| |
| g_io_channel_unref (data->channel); |
| g_free (data); |
| } |
| |
| static gboolean |
| g_io_win32_sock_prepare (gpointer source_data, |
| GTimeVal *current_time, |
| gint *timeout) |
| { |
| *timeout = -1; |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| g_io_win32_sock_check (gpointer source_data, |
| GTimeVal *current_time) |
| { |
| GIOWin32Watch *data = source_data; |
| |
| return (data->pollfd.revents & data->condition); |
| } |
| |
| static gboolean |
| g_io_win32_sock_dispatch (gpointer source_data, |
| GTimeVal *current_time, |
| gpointer user_data) |
| |
| { |
| GIOWin32Watch *data = source_data; |
| |
| return (*data->callback)(data->channel, |
| data->pollfd.revents & data->condition, |
| user_data); |
| } |
| |
| static GIOError |
| g_io_win32_fd_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_read) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| gint result; |
| |
| result = read (win32_channel->fd, buf, count); |
| if (result < 0) |
| { |
| *bytes_read = 0; |
| switch (errno) |
| { |
| case EINVAL: |
| return G_IO_ERROR_INVAL; |
| case EAGAIN: |
| return G_IO_ERROR_AGAIN; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| { |
| *bytes_read = result; |
| return G_IO_ERROR_NONE; |
| } |
| } |
| |
| static GIOError |
| g_io_win32_fd_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| gint result; |
| |
| result = write (win32_channel->fd, buf, count); |
| |
| if (result < 0) |
| { |
| *bytes_written = 0; |
| switch (errno) |
| { |
| case EINVAL: |
| return G_IO_ERROR_INVAL; |
| case EAGAIN: |
| return G_IO_ERROR_AGAIN; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| { |
| *bytes_written = result; |
| return G_IO_ERROR_NONE; |
| } |
| } |
| |
| static GIOError |
| g_io_win32_fd_seek (GIOChannel *channel, |
| gint offset, |
| GSeekType type) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| int whence; |
| off_t result; |
| |
| switch (type) |
| { |
| case G_SEEK_SET: |
| whence = SEEK_SET; |
| break; |
| case G_SEEK_CUR: |
| whence = SEEK_CUR; |
| break; |
| case G_SEEK_END: |
| whence = SEEK_END; |
| break; |
| default: |
| g_warning ("g_io_win32_fd_seek: unknown seek type"); |
| return G_IO_ERROR_UNKNOWN; |
| } |
| |
| result = lseek (win32_channel->fd, offset, whence); |
| |
| if (result < 0) |
| { |
| switch (errno) |
| { |
| case EINVAL: |
| return G_IO_ERROR_INVAL; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| return G_IO_ERROR_NONE; |
| } |
| |
| static void |
| g_io_win32_fd_close (GIOChannel *channel) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| close (win32_channel->fd); |
| return; |
| } |
| |
| static guint |
| g_io_win32_fd_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify) |
| { |
| GIOWin32Watch *watch = g_new (GIOWin32Watch, 1); |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| watch->channel = channel; |
| g_io_channel_ref (channel); |
| |
| watch->callback = func; |
| watch->condition = condition; |
| |
| /* This probably does not work, except for CONIN$. */ |
| watch->pollfd.fd = _get_osfhandle (win32_channel->fd); |
| watch->pollfd.events = condition; |
| |
| g_main_add_poll (&watch->pollfd, priority); |
| |
| return g_source_add (priority, TRUE, &win32_watch_fd_funcs, |
| watch, user_data, notify); |
| } |
| |
| static GIOError |
| g_io_win32_pipe_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_read) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| HANDLE handle; |
| DWORD avail; |
| gint result; |
| |
| handle = (HANDLE) _get_osfhandle (win32_channel->fd); |
| if (!PeekNamedPipe (handle, NULL, 0, NULL, &avail, NULL)) |
| { |
| return G_IO_ERROR_UNKNOWN; |
| } |
| |
| count = MIN (count, avail); |
| |
| count = MAX (count, 1); /* Must read at least one byte, or |
| * caller will think it's EOF. |
| */ |
| /* g_print ("g_io_win32_pipe_read: %d %d\n", win32_channel->fd, count); */ |
| if (count == 0) |
| result = 0; |
| else |
| result = read (win32_channel->fd, buf, count); |
| if (result < 0) |
| { |
| *bytes_read = 0; |
| switch (errno) |
| { |
| case EINVAL: |
| return G_IO_ERROR_INVAL; |
| case EAGAIN: |
| return G_IO_ERROR_AGAIN; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| { |
| *bytes_read = result; |
| win32_channel->offset += result; |
| /* g_print ("=%d (%d)\n", result, win32_channel->offset); */ |
| return G_IO_ERROR_NONE; |
| } |
| } |
| |
| static GIOError |
| g_io_win32_pipe_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| LONG prevcnt; |
| gint result; |
| |
| /* g_print ("g_io_win32_pipe_write: %d %d\n", win32_channel->fd, count); */ |
| result = write (win32_channel->fd, buf, count); |
| if (result < 0) |
| { |
| *bytes_written = 0; |
| switch (errno) |
| { |
| case EINVAL: |
| return G_IO_ERROR_INVAL; |
| case EAGAIN: |
| return G_IO_ERROR_AGAIN; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| { |
| if (g_pipe_readable_msg == 0) |
| g_pipe_readable_msg = RegisterWindowMessage ("g-pipe-readable"); |
| |
| win32_channel->offset += result; |
| /* g_print ("=%d (%d)\n", result, win32_channel->offset); */ |
| if (win32_channel->need_wakeups) |
| { |
| PostThreadMessage (win32_channel->peer, |
| g_pipe_readable_msg, |
| win32_channel->peer_fd, |
| win32_channel->offset); |
| } |
| *bytes_written = result; |
| return G_IO_ERROR_NONE; |
| } |
| } |
| |
| static void |
| g_io_win32_pipe_close (GIOChannel *channel) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| /* g_print ("g_io_win32_pipe_close: %#x %d\n", channel, win32_channel->fd); */ |
| |
| close (win32_channel->fd); |
| return; |
| } |
| |
| static guint |
| g_io_win32_pipe_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify) |
| { |
| GIOWin32Watch *watch = g_new (GIOWin32Watch, 1); |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| gint i; |
| |
| /* g_print ("g_io_win32_pipe_add_watch: %d\n", win32_channel->fd); */ |
| |
| watch->channel = channel; |
| g_io_channel_ref (channel); |
| |
| watch->callback = func; |
| watch->condition = condition; |
| |
| watch->pollfd.fd = win32_channel->fd; |
| watch->pollfd.events = condition; |
| |
| for (i = 0; i < n_watched_pipes; i++) |
| if (watched_pipes[i].fd == -1) |
| break; |
| if (i == N_WATCHED_PIPES) |
| g_error ("Too many watched pipes"); |
| else |
| { |
| watched_pipes[i].fd = win32_channel->fd; |
| watched_pipes[i].watch = watch; |
| watched_pipes[i].channel = win32_channel; |
| watched_pipes[i].user_data = user_data; |
| n_watched_pipes = MAX (i + 1, n_watched_pipes); |
| } |
| return g_source_add (priority, FALSE, &win32_watch_pipe_funcs, watch, user_data, notify); |
| } |
| |
| static void |
| g_io_win32_pipe_free (GIOChannel *channel) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| gint i; |
| |
| /* g_print ("g_io_win32_pipe_free: %#x %#x\n", channel, channel->channel_data); */ |
| |
| for (i = 0; i < n_watched_pipes; i++) |
| if (watched_pipes[i].fd == win32_channel->fd) |
| { |
| watched_pipes[i].fd = -1; |
| break; |
| } |
| g_io_win32_free (channel); |
| } |
| |
| static GIOError |
| g_io_win32_sock_read (GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_read) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| gint result; |
| |
| result = recv (win32_channel->fd, buf, count, 0); |
| if (result == SOCKET_ERROR) |
| { |
| *bytes_read = 0; |
| switch (WSAGetLastError ()) |
| { |
| case WSAEINVAL: |
| return G_IO_ERROR_INVAL; |
| case WSAEWOULDBLOCK: |
| case WSAEINTR: |
| return G_IO_ERROR_AGAIN; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| { |
| *bytes_read = result; |
| return G_IO_ERROR_NONE; |
| } |
| } |
| |
| static GIOError |
| g_io_win32_sock_write(GIOChannel *channel, |
| gchar *buf, |
| guint count, |
| guint *bytes_written) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| gint result; |
| |
| result = send (win32_channel->fd, buf, count, 0); |
| |
| if (result == SOCKET_ERROR) |
| { |
| *bytes_written = 0; |
| switch (WSAGetLastError ()) |
| { |
| case WSAEINVAL: |
| return G_IO_ERROR_INVAL; |
| case WSAEWOULDBLOCK: |
| case WSAEINTR: |
| return G_IO_ERROR_AGAIN; |
| default: |
| return G_IO_ERROR_UNKNOWN; |
| } |
| } |
| else |
| { |
| *bytes_written = result; |
| return G_IO_ERROR_NONE; |
| } |
| } |
| |
| static void |
| g_io_win32_sock_close (GIOChannel *channel) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| closesocket (win32_channel->fd); |
| return; |
| } |
| |
| static guint |
| g_io_win32_sock_add_watch (GIOChannel *channel, |
| gint priority, |
| GIOCondition condition, |
| GIOFunc func, |
| gpointer user_data, |
| GDestroyNotify notify) |
| { |
| GIOWin32Watch *watch = g_new (GIOWin32Watch, 1); |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| watch->channel = channel; |
| g_io_channel_ref (channel); |
| |
| watch->callback = func; |
| watch->condition = condition; |
| |
| watch->pollfd.fd = win32_channel->fd; |
| watch->pollfd.events = condition; |
| |
| g_main_add_poll (&watch->pollfd, priority); |
| |
| return g_source_add (priority, TRUE, &win32_watch_sock_funcs, watch, user_data, notify); |
| } |
| |
| GIOChannel * |
| g_io_channel_win32_new_messages (guint hwnd) |
| { |
| GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1); |
| GIOChannel *channel = (GIOChannel *) win32_channel; |
| |
| g_io_channel_init (channel); |
| channel->funcs = &win32_channel_msg_funcs; |
| win32_channel->fd = -1; |
| win32_channel->type = G_IO_WINDOWS_MESSAGES; |
| win32_channel->hwnd = (HWND) hwnd; |
| |
| return channel; |
| } |
| |
| GIOChannel * |
| g_io_channel_unix_new (gint fd) |
| { |
| GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1); |
| GIOChannel *channel = (GIOChannel *) win32_channel; |
| |
| g_io_channel_init (channel); |
| channel->funcs = &win32_channel_fd_funcs; |
| win32_channel->fd = fd; |
| win32_channel->type = G_IO_FILE_DESC; |
| |
| return channel; |
| } |
| |
| gint |
| g_io_channel_unix_get_fd (GIOChannel *channel) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| return win32_channel->fd; |
| } |
| |
| GIOChannel * |
| g_io_channel_win32_new_pipe_with_wakeups (int fd, |
| guint peer, |
| int peer_fd) |
| { |
| GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1); |
| GIOChannel *channel = (GIOChannel *) win32_channel; |
| |
| /* g_print ("g_io_channel_win32_new_pipe_with_wakeups %d %#x %d\n", fd, peer, peer_fd); */ |
| |
| g_io_channel_init (channel); |
| channel->funcs = &win32_channel_pipe_funcs; |
| win32_channel->fd = fd; |
| win32_channel->type = G_IO_PIPE; |
| win32_channel->peer = peer; |
| win32_channel->peer_fd = peer_fd; |
| win32_channel->offset = 0; |
| win32_channel->need_wakeups = TRUE; |
| |
| return channel; |
| } |
| |
| GIOChannel * |
| g_io_channel_win32_new_pipe (int fd) |
| { |
| GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1); |
| GIOChannel *channel = (GIOChannel *) win32_channel; |
| |
| g_io_channel_init (channel); |
| channel->funcs = &win32_channel_pipe_funcs; |
| win32_channel->fd = fd; |
| win32_channel->type = G_IO_PIPE; |
| win32_channel->offset = 0; |
| win32_channel->need_wakeups = FALSE; |
| |
| return channel; |
| } |
| |
| GIOChannel * |
| g_io_channel_win32_new_stream_socket (int socket) |
| { |
| GIOWin32Channel *win32_channel = g_new (GIOWin32Channel, 1); |
| GIOChannel *channel = (GIOChannel *) win32_channel; |
| |
| g_io_channel_init (channel); |
| channel->funcs = &win32_channel_sock_funcs; |
| win32_channel->fd = socket; |
| win32_channel->type = G_IO_STREAM_SOCKET; |
| |
| return channel; |
| } |
| |
| gint |
| g_io_channel_win32_get_fd (GIOChannel *channel) |
| { |
| return g_io_channel_unix_get_fd (channel); |
| } |
| |
| void |
| g_io_channel_win32_pipe_request_wakeups (GIOChannel *channel, |
| guint peer, |
| int peer_fd) |
| { |
| GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel; |
| |
| win32_channel->peer = peer; |
| win32_channel->peer_fd = peer_fd; |
| win32_channel->need_wakeups = TRUE; |
| } |
| |
| void |
| g_io_channel_win32_pipe_readable (gint fd, |
| guint offset) |
| { |
| gint i; |
| |
| for (i = 0; i < n_watched_pipes; i++) |
| if (watched_pipes[i].fd == fd) |
| { |
| if (watched_pipes[i].channel->offset < offset) |
| (*watched_pipes[i].watch->callback) (watched_pipes[i].watch->channel, |
| G_IO_IN, |
| watched_pipes[i].user_data); |
| break; |
| } |
| } |