x11_window.c

//========================================================================
// GLFW 3.3 X11 - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would
//    be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
//    be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
//    distribution.
//
//========================================================================

#include "internal.h"

#include <X11/cursorfont.h>
#include <X11/Xmd.h>

#include <sys/select.h>

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#include <assert.h>

// Action for EWMH client messages
#define _NET_WM_STATE_REMOVE        0
#define _NET_WM_STATE_ADD           1
#define _NET_WM_STATE_TOGGLE        2

// Additional mouse button names for XButtonEvent
#define Button6            6
#define Button7            7


// Wait for data to arrive using select
// This avoids blocking other threads via the per-display Xlib lock that also
// covers GLX functions
//
static GLFWbool waitForEvent(double* timeout)
{
    fd_set fds;
    const int fd = ConnectionNumber(_glfw.x11.display);
    int count = fd + 1;

#if defined(__linux__)
    if (_glfw.linjs.inotify > fd)
        count = _glfw.linjs.inotify + 1;
#endif
    for (;;)
    {
        FD_ZERO(&fds);
        FD_SET(fd, &fds);
#if defined(__linux__)