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)
930 lines
22 KiB
C
930 lines
22 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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* giowin32.c: IO Channels for Win32.
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* Copyright 1998 Owen Taylor and Tor Lillqvist
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* Copyright 1999-2000 Tor Lillqvist and Craig Setera
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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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/* Define this to get (very) verbose logging of all channels */
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/* #define G_IO_WIN32_DEBUG */
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#include "glib.h"
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#include <stdlib.h>
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#include <windows.h>
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#include <winsock.h> /* Not everybody has winsock2 */
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#include <fcntl.h>
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#include <io.h>
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#include <process.h>
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#include <errno.h>
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#include <sys/stat.h>
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typedef struct _GIOWin32Channel GIOWin32Channel;
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typedef struct _GIOWin32Watch GIOWin32Watch;
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#define BUFFER_SIZE 4096
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typedef enum {
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G_IO_WINDOWS_MESSAGES, /* Windows messages */
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G_IO_FILE_DESC, /* Unix-like file descriptors from
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* _open() or _pipe(). Read with read().
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* Have to create separate thread to read.
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*/
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G_IO_STREAM_SOCKET /* Stream sockets. Similar as fds, but
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* read with recv().
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*/
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} GIOWin32ChannelType;
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struct _GIOWin32Channel {
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GIOChannel channel;
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gint fd; /* Either a Unix-like file handle as provided
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* by the Microsoft C runtime, or a SOCKET
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* as provided by WinSock.
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*/
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GIOWin32ChannelType type;
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gboolean debug;
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/* This is used by G_IO_WINDOWS_MESSAGES channels */
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HWND hwnd; /* handle of window, or NULL */
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/* Following fields used by fd and socket channels for input */
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/* Data is kept in a circular buffer. To be able to distinguish between
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* empty and full buffer, we cannot fill it completely, but have to
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* leave a one character gap.
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*
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* Data available is between indexes rdp and wrp-1 (modulo BUFFER_SIZE).
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*
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* Empty: wrp == rdp
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* Full: (wrp + 1) % BUFFER_SIZE == rdp
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* Partial: otherwise
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*/
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guchar *buffer; /* (Circular) buffer */
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gint wrp, rdp; /* Buffer indices for writing and reading */
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gboolean running; /* Is reader thread running. FALSE if
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* EOF has been reached.
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*/
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guint thread_id; /* If non-NULL has a reader thread, or has
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* had.*/
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HANDLE data_avail_event;
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HANDLE space_avail_event;
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CRITICAL_SECTION mutex;
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/* Function that actually reads from fd */
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int (*reader) (int fd, guchar *buf, int len);
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};
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#define LOCK(mutex) EnterCriticalSection (&mutex)
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#define UNLOCK(mutex) LeaveCriticalSection (&mutex)
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struct _GIOWin32Watch {
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GSource source;
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GPollFD pollfd;
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GIOChannel *channel;
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GIOCondition condition;
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GIOFunc callback;
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};
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static void
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g_io_channel_win32_init (GIOWin32Channel *channel)
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{
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#ifdef G_IO_WIN32_DEBUG
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channel->debug = TRUE;
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#else
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if (getenv ("G_IO_WIN32_DEBUG") != NULL)
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channel->debug = TRUE;
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else
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channel->debug = FALSE;
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#endif
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channel->buffer = NULL;
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channel->running = FALSE;
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channel->thread_id = 0;
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channel->data_avail_event = NULL;
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channel->space_avail_event = NULL;
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}
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static void
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create_events (GIOWin32Channel *channel)
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{
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SECURITY_ATTRIBUTES sec_attrs;
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sec_attrs.nLength = sizeof(SECURITY_ATTRIBUTES);
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sec_attrs.lpSecurityDescriptor = NULL;
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sec_attrs.bInheritHandle = FALSE;
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/* The data available event is manual reset, the space available event
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* is automatic reset.
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*/
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if (!(channel->data_avail_event = CreateEvent (&sec_attrs, TRUE, FALSE, NULL))
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|| !(channel->space_avail_event = CreateEvent (&sec_attrs, FALSE, FALSE, NULL)))
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{
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gchar *msg = g_win32_error_message (GetLastError ());
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g_error ("Error creating event: %s", msg);
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}
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InitializeCriticalSection (&channel->mutex);
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}
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static unsigned __stdcall
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reader_thread (void *parameter)
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{
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GIOWin32Channel *channel = parameter;
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guchar *buffer;
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guint nbytes;
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g_io_channel_ref ((GIOChannel *) channel);
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if (channel->debug)
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g_print ("thread %#x: starting. pid:%#x, fd:%d, data_avail:%#x, space_avail:%#x\n",
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channel->thread_id,
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(guint) GetCurrentProcessId (),
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channel->fd,
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(guint) channel->data_avail_event,
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(guint) channel->space_avail_event);
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channel->buffer = g_malloc (BUFFER_SIZE);
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channel->rdp = channel->wrp = 0;
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channel->running = TRUE;
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SetEvent (channel->space_avail_event);
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while (channel->running)
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{
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LOCK (channel->mutex);
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if (channel->debug)
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g_print ("thread %#x: rdp=%d, wrp=%d\n",
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channel->thread_id, channel->rdp, channel->wrp);
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if ((channel->wrp + 1) % BUFFER_SIZE == channel->rdp)
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{
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/* Buffer is full */
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if (channel->debug)
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g_print ("thread %#x: resetting space_available\n",
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channel->thread_id);
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ResetEvent (channel->space_avail_event);
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if (channel->debug)
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g_print ("thread %#x: waiting for space\n", channel->thread_id);
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UNLOCK (channel->mutex);
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WaitForSingleObject (channel->space_avail_event, INFINITE);
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LOCK (channel->mutex);
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if (channel->debug)
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g_print ("thread %#x: rdp=%d, wrp=%d\n",
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channel->thread_id, channel->rdp, channel->wrp);
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}
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buffer = channel->buffer + channel->wrp;
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/* Always leave at least one byte unused gap to be able to
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* distinguish between the full and empty condition...
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*/
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nbytes = MIN ((channel->rdp + BUFFER_SIZE - channel->wrp - 1) % BUFFER_SIZE,
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BUFFER_SIZE - channel->wrp);
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if (channel->debug)
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g_print ("thread %#x: calling reader for %d bytes\n",
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channel->thread_id, nbytes);
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UNLOCK (channel->mutex);
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nbytes = (*channel->reader) (channel->fd, buffer, nbytes);
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if (nbytes <= 0)
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break;
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LOCK (channel->mutex);
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if (channel->debug)
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g_print ("thread %#x: got %d bytes, rdp=%d, wrp=%d\n",
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channel->thread_id, nbytes, channel->rdp, channel->wrp);
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channel->wrp = (channel->wrp + nbytes) % BUFFER_SIZE;
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if (channel->debug)
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g_print ("thread %#x: rdp=%d, wrp=%d, setting data available\n",
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channel->thread_id, channel->rdp, channel->wrp);
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SetEvent (channel->data_avail_event);
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UNLOCK (channel->mutex);
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}
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LOCK (channel->mutex);
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channel->running = FALSE;
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if (channel->debug)
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g_print ("thread %#x: got EOF, rdp=%d, wrp=%d, setting data available\n",
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channel->thread_id, channel->rdp, channel->wrp);
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SetEvent (channel->data_avail_event);
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UNLOCK (channel->mutex);
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g_io_channel_unref((GIOChannel *) channel);
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/* All of the Microsoft docs say we should explicitly
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* end the thread...
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*/
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_endthreadex(1);
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return 0;
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}
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static void
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create_reader_thread (GIOWin32Channel *channel,
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gpointer reader)
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{
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channel->reader = reader;
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if (_beginthreadex (NULL, 0, reader_thread, channel, 0,
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&channel->thread_id) == 0)
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g_warning ("Error creating reader thread: %s", strerror (errno));
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WaitForSingleObject (channel->space_avail_event, INFINITE);
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}
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static int
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buffer_read (GIOWin32Channel *channel,
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guchar *dest,
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guint count,
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GIOError *error)
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{
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guint nbytes;
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guint left = count;
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LOCK (channel->mutex);
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if (channel->debug)
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g_print ("reading from thread %#x %d bytes, rdp=%d, wrp=%d\n",
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channel->thread_id, count, channel->rdp, channel->wrp);
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if (channel->rdp == channel->wrp)
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{
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UNLOCK (channel->mutex);
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if (channel->debug)
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g_print ("waiting for data from thread %#x\n", channel->thread_id);
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WaitForSingleObject (channel->data_avail_event, INFINITE);
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LOCK (channel->mutex);
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if (channel->rdp == channel->wrp && !channel->running)
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{
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UNLOCK (channel->mutex);
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return 0;
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}
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}
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if (channel->rdp < channel->wrp)
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nbytes = channel->wrp - channel->rdp;
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else
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nbytes = BUFFER_SIZE - channel->rdp;
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UNLOCK (channel->mutex);
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nbytes = MIN (left, nbytes);
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if (channel->debug)
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g_print ("moving %d bytes from thread %#x\n",
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nbytes, channel->thread_id);
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memcpy (dest, channel->buffer + channel->rdp, nbytes);
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dest += nbytes;
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left -= nbytes;
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LOCK (channel->mutex);
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channel->rdp = (channel->rdp + nbytes) % BUFFER_SIZE;
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if (channel->debug)
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g_print ("setting space available for thread %#x\n", channel->thread_id);
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SetEvent (channel->space_avail_event);
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if (channel->debug)
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g_print ("for thread %#x: rdp=%d, wrp=%d\n",
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channel->thread_id, channel->rdp, channel->wrp);
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if (channel->running && channel->rdp == channel->wrp)
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{
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if (channel->debug)
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g_print ("resetting data_available of thread %#x\n",
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channel->thread_id);
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ResetEvent (channel->data_avail_event);
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};
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UNLOCK (channel->mutex);
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/* We have no way to indicate any errors form the actual
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* read() or recv() call in the reader thread. Should we have?
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*/
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*error = G_IO_ERROR_NONE;
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return count - left;
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}
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static gboolean
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g_io_win32_prepare (GSource *source,
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gint *timeout)
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{
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*timeout = -1;
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return FALSE;
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}
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static gboolean
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g_io_win32_check (GSource *source)
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{
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GIOWin32Watch *watch = (GIOWin32Watch *)source;
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GIOWin32Channel *channel = (GIOWin32Channel *) watch->channel;
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/* If the thread has died, we have encountered EOF. If the buffer
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* also is emtpty set the HUP bit.
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*/
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if (!channel->running && channel->rdp == channel->wrp)
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{
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if (channel->debug)
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g_print ("g_io_win32_check: setting G_IO_HUP thread %#x rdp=%d wrp=%d\n",
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channel->thread_id, channel->rdp, channel->wrp);
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watch->pollfd.revents |= G_IO_HUP;
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return TRUE;
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}
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return (watch->pollfd.revents & watch->condition);
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}
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static gboolean
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g_io_win32_dispatch (GSource *source,
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GSourceFunc callback,
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gpointer user_data)
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{
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GIOWin32Watch *watch = (GIOWin32Watch *)source;
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return (*callback) (watch->channel,
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watch->pollfd.revents & watch->condition,
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user_data);
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}
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static void
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g_io_win32_destroy (GSource *source)
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{
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GIOWin32Watch *watch = (GIOWin32Watch *)source;
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g_io_channel_unref (watch->channel);
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}
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static GSourceFuncs win32_watch_funcs = {
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g_io_win32_prepare,
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g_io_win32_check,
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g_io_win32_dispatch,
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g_io_win32_destroy
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};
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static GSource *
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g_io_win32_create_watch (GIOChannel *channel,
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GIOCondition condition,
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int (*reader) (int, guchar *, int)))
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{
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GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
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GIOWin32Watch *watch;
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GSource *source;
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source = g_source_new (&win32_watch_funcs, sizeof (GIOWin32Watch));
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watch = (GIOWin32Watch *)source;
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watch->channel = channel;
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g_io_channel_ref (channel);
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watch->condition = condition;
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if (win32_channel->data_avail_event == NULL)
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create_events (win32_channel);
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watch->pollfd.fd = (gint) win32_channel->data_avail_event;
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watch->pollfd.events = condition;
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if (win32_channel->debug)
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g_print ("g_io_win32_create_watch: fd:%d handle:%#x\n",
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win32_channel->fd, watch->pollfd.fd);
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if (win32_channel->thread_id == 0)
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create_reader_thread (win32_channel, reader);
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g_source_add_poll (source, &watch->pollfd);
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return source;
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}
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static GIOError
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g_io_win32_msg_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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{
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GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
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MSG msg; /* In case of alignment problems */
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if (count < sizeof (MSG))
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return G_IO_ERROR_INVAL;
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if (!PeekMessage (&msg, win32_channel->hwnd, 0, 0, PM_REMOVE))
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return G_IO_ERROR_AGAIN;
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memmove (buf, &msg, sizeof (MSG));
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*bytes_read = sizeof (MSG);
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return G_IO_ERROR_NONE;
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}
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static GIOError
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g_io_win32_msg_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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{
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GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
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MSG msg;
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if (count != sizeof (MSG))
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return G_IO_ERROR_INVAL;
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/* In case of alignment problems */
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memmove (&msg, buf, sizeof (MSG));
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if (!PostMessage (win32_channel->hwnd, msg.message, msg.wParam, msg.lParam))
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return G_IO_ERROR_UNKNOWN;
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*bytes_written = sizeof (MSG);
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return G_IO_ERROR_NONE;
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}
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static GIOError
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g_io_win32_no_seek (GIOChannel *channel,
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gint offset,
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GSeekType type)
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{
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return G_IO_ERROR_UNKNOWN;
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}
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static void
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g_io_win32_msg_close (GIOChannel *channel)
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{
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/* Nothing to be done. Or should we set hwnd to some invalid value? */
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}
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static void
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g_io_win32_free (GIOChannel *channel)
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{
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GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
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if (win32_channel->buffer)
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{
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CloseHandle (win32_channel->data_avail_event);
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CloseHandle (win32_channel->space_avail_event);
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DeleteCriticalSection (&win32_channel->mutex);
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}
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g_free (win32_channel->buffer);
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g_free (win32_channel);
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}
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static GSource *
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g_io_win32_msg_create_watch (GIOChannel *channel,
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GIOCondition condition)
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{
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GIOWin32Watch *watch;
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GSource *source;
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source = g_source_new (&win32_watch_funcs, sizeof (GIOWin32Watch));
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watch = (GIOWin32Watch *)source;
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watch->channel = channel;
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g_io_channel_ref (channel);
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watch->condition = condition;
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watch->pollfd.fd = G_WIN32_MSG_HANDLE;
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watch->pollfd.events = condition;
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g_source_add_poll (source, &watch->pollfd);
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return source;
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}
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static GIOError
|
|
g_io_win32_fd_read (GIOChannel *channel,
|
|
gchar *buf,
|
|
guint count,
|
|
guint *bytes_read)
|
|
{
|
|
GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
|
|
gint result;
|
|
GIOError error;
|
|
|
|
if (win32_channel->debug)
|
|
g_print ("g_io_win32_fd_read: fd:%d count:%d\n",
|
|
win32_channel->fd, count);
|
|
|
|
if (win32_channel->thread_id)
|
|
{
|
|
result = buffer_read (win32_channel, buf, count, &error);
|
|
if (result < 0)
|
|
{
|
|
*bytes_read = 0;
|
|
return error;
|
|
}
|
|
else
|
|
{
|
|
*bytes_read = result;
|
|
return G_IO_ERROR_NONE;
|
|
}
|
|
}
|
|
|
|
result = read (win32_channel->fd, buf, count);
|
|
|
|
if (result < 0)
|
|
{
|
|
*bytes_read = 0;
|
|
if (errno == EINVAL)
|
|
return G_IO_ERROR_INVAL;
|
|
else
|
|
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 (win32_channel->debug)
|
|
g_print ("g_io_win32_fd_write: fd:%d count:%d = %d\n",
|
|
win32_channel->fd, count, result);
|
|
|
|
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 int
|
|
fd_reader (int fd,
|
|
guchar *buf,
|
|
int len)
|
|
{
|
|
return read (fd, buf, len);
|
|
}
|
|
|
|
static GSource *
|
|
g_io_win32_fd_create_watch (GIOChannel *channel,
|
|
GIOCondition condition)
|
|
{
|
|
return g_io_win32_create_watch (channel, condition, fd_reader);
|
|
}
|
|
|
|
static GIOError
|
|
g_io_win32_sock_read (GIOChannel *channel,
|
|
gchar *buf,
|
|
guint count,
|
|
guint *bytes_read)
|
|
{
|
|
GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
|
|
gint result;
|
|
GIOError error;
|
|
|
|
if (win32_channel->thread_id)
|
|
{
|
|
result = buffer_read (win32_channel, buf, count, &error);
|
|
if (result < 0)
|
|
{
|
|
*bytes_read = 0;
|
|
return error;
|
|
}
|
|
else
|
|
{
|
|
*bytes_read = result;
|
|
return G_IO_ERROR_NONE;
|
|
}
|
|
}
|
|
|
|
result = recv (win32_channel->fd, buf, count, 0);
|
|
|
|
if (result < 0)
|
|
{
|
|
*bytes_read = 0;
|
|
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);
|
|
}
|
|
|
|
static int
|
|
sock_reader (int fd,
|
|
guchar *buf,
|
|
int len)
|
|
{
|
|
return recv (fd, buf, len, 0);
|
|
}
|
|
|
|
static GSource *
|
|
g_io_win32_sock_create_watch (GIOChannel *channel,
|
|
GIOCondition condition)
|
|
{
|
|
return g_io_win32_add_watch (channel, condition, sock_reader);
|
|
}
|
|
|
|
static 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_create_watch,
|
|
g_io_win32_free
|
|
};
|
|
|
|
static 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_create_watch,
|
|
g_io_win32_free
|
|
};
|
|
|
|
static 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_create_watch,
|
|
g_io_win32_free
|
|
};
|
|
|
|
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);
|
|
g_io_channel_win32_init (win32_channel);
|
|
channel->funcs = &win32_channel_msg_funcs;
|
|
win32_channel->type = G_IO_WINDOWS_MESSAGES;
|
|
win32_channel->hwnd = (HWND) hwnd;
|
|
|
|
return channel;
|
|
}
|
|
|
|
GIOChannel *
|
|
g_io_channel_win32_new_fd (gint fd)
|
|
{
|
|
GIOWin32Channel *win32_channel;
|
|
GIOChannel *channel;
|
|
struct stat st;
|
|
|
|
if (fstat (fd, &st) == -1)
|
|
{
|
|
g_warning ("%d isn't a (emulated) file descriptor", fd);
|
|
return NULL;
|
|
}
|
|
|
|
win32_channel = g_new (GIOWin32Channel, 1);
|
|
channel = (GIOChannel *) win32_channel;
|
|
|
|
g_io_channel_init (channel);
|
|
g_io_channel_win32_init (win32_channel);
|
|
channel->funcs = &win32_channel_fd_funcs;
|
|
win32_channel->type = G_IO_FILE_DESC;
|
|
win32_channel->fd = fd;
|
|
|
|
return channel;
|
|
}
|
|
|
|
gint
|
|
g_io_channel_win32_get_fd (GIOChannel *channel)
|
|
{
|
|
GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
|
|
|
|
return win32_channel->fd;
|
|
}
|
|
|
|
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);
|
|
g_io_channel_win32_init (win32_channel);
|
|
channel->funcs = &win32_channel_sock_funcs;
|
|
win32_channel->type = G_IO_STREAM_SOCKET;
|
|
win32_channel->fd = socket;
|
|
|
|
return channel;
|
|
}
|
|
|
|
GIOChannel *
|
|
g_io_channel_unix_new (gint fd)
|
|
{
|
|
return g_io_channel_win32_new_fd (fd);
|
|
}
|
|
|
|
gint
|
|
g_io_channel_unix_get_fd (GIOChannel *channel)
|
|
{
|
|
return g_io_channel_win32_get_fd (channel);
|
|
}
|
|
|
|
void
|
|
g_io_channel_win32_set_debug (GIOChannel *channel,
|
|
gboolean flag)
|
|
{
|
|
GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
|
|
|
|
win32_channel->debug = flag;
|
|
}
|
|
|
|
gint
|
|
g_io_channel_win32_poll (GPollFD *fds,
|
|
gint n_fds,
|
|
gint timeout)
|
|
{
|
|
int result;
|
|
|
|
g_return_val_if_fail (n_fds >= 0, 0);
|
|
|
|
result = (*g_main_win32_get_poll_func ()) (fds, n_fds, timeout);
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
g_io_channel_win32_make_pollfd (GIOChannel *channel,
|
|
GIOCondition condition,
|
|
GPollFD *fd)
|
|
{
|
|
GIOWin32Channel *win32_channel = (GIOWin32Channel *) channel;
|
|
|
|
if (win32_channel->data_avail_event == NULL)
|
|
create_events (win32_channel);
|
|
|
|
fd->fd = (gint) win32_channel->data_avail_event;
|
|
fd->events = condition;
|
|
|
|
if (win32_channel->thread_id == 0)
|
|
if (win32_channel->type == G_IO_FILE_DESC)
|
|
create_reader_thread (win32_channel, fd_reader);
|
|
else if (win32_channel->type == G_IO_STREAM_SOCKET)
|
|
create_reader_thread (win32_channel, sock_reader);
|
|
}
|
|
|
|
/* This variable and the functions below are present just to be
|
|
* binary compatible with old clients... But note that in GIMP, the
|
|
* libgimp/gimp.c:gimp_extension_process() function will have to be modified
|
|
* anyhow for this new approach.
|
|
*
|
|
* These will be removed after some weeks.
|
|
*/
|
|
guint g_pipe_readable_msg = 0;
|
|
|
|
GIOChannel *
|
|
g_io_channel_win32_new_pipe (int fd)
|
|
{
|
|
return g_io_channel_win32_new_fd (fd);
|
|
}
|
|
|
|
GIOChannel *
|
|
g_io_channel_win32_new_pipe_with_wakeups (int fd,
|
|
guint peer,
|
|
int peer_fd)
|
|
{
|
|
return g_io_channel_win32_new_fd (fd);
|
|
}
|
|
|
|
void
|
|
g_io_channel_win32_pipe_request_wakeups (GIOChannel *channel,
|
|
guint peer,
|
|
int peer_fd)
|
|
{
|
|
/* Nothing needed now */
|
|
}
|
|
|
|
void
|
|
g_io_channel_win32_pipe_readable (gint fd,
|
|
guint offset)
|
|
{
|
|
/* Nothing needed now */
|
|
}
|
|
|