IABSD.fr/xenocara/xserver/config/config.c

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• Author : matthieu
  Date : 2017-12-08 15:01:59
  Hash : 1a66cad3
  Message : Update to xserver 1.19.5. Tested by bru@, jsg@ and others

• xserver/config/config.c

• /*
   * Copyright © 2006-2007 Daniel Stone
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   *
   * Author: Daniel Stone <daniel@fooishbar.org>
   */
  
  #ifdef HAVE_DIX_CONFIG_H
  #include <dix-config.h>
  #endif
  
  #include <unistd.h>
  #include "os.h"
  #include "inputstr.h"
  #include "hotplug.h"
  #include "config-backends.h"
  #include "systemd-logind.h"
  
  void
  config_pre_init(void)
  {
  #ifdef CONFIG_UDEV
      if (!config_udev_pre_init())
          ErrorF("[config] failed to pre-init udev\n");
  #endif
  }
  
  void
  config_init(void)
  {
  #ifdef CONFIG_UDEV
      if (!config_udev_init())
          ErrorF("[config] failed to initialise udev\n");
  #elif defined(CONFIG_HAL)
      if (!config_hal_init())
          ErrorF("[config] failed to initialise HAL\n");
  #elif defined(CONFIG_WSCONS)
      if (!config_wscons_init())
          ErrorF("[config] failed to initialise wscons\n");
  #endif
  }
  
  void
  config_fini(void)
  {
  #if defined(CONFIG_UDEV)
      config_udev_fini();
  #elif defined(CONFIG_HAL)
      config_hal_fini();
  #elif defined(CONFIG_WSCONS)
      config_wscons_fini();
  #endif
  }
  
  void
  config_odev_probe(config_odev_probe_proc_ptr probe_callback)
  {
  #if defined(CONFIG_UDEV_KMS)
      config_udev_odev_probe(probe_callback);
  #endif
  }
  
  static void
  remove_device(const char *backend, DeviceIntPtr dev)
  {
      /* this only gets called for devices that have already been added */
      LogMessage(X_INFO, "config/%s: removing device %s\n", backend, dev->name);
  
      /* Call PIE here so we don't try to dereference a device that's
       * already been removed. */
      input_lock();
      ProcessInputEvents();
      DeleteInputDeviceRequest(dev);
      input_unlock();
  }
  
  void
  remove_devices(const char *backend, const char *config_info)
  {
      DeviceIntPtr dev, next;
  
      for (dev = inputInfo.devices; dev; dev = next) {
          next = dev->next;
          if (dev->config_info && strcmp(dev->config_info, config_info) == 0)
              remove_device(backend, dev);
      }
      for (dev = inputInfo.off_devices; dev; dev = next) {
          next = dev->next;
          if (dev->config_info && strcmp(dev->config_info, config_info) == 0)
              remove_device(backend, dev);
      }
  
      RemoveInputDeviceTraces(config_info);
  }
  
  BOOL
  device_is_duplicate(const char *config_info)
  {
      DeviceIntPtr dev;
  
      for (dev = inputInfo.devices; dev; dev = dev->next) {
          if (dev->config_info && (strcmp(dev->config_info, config_info) == 0))
              return TRUE;
      }
  
      for (dev = inputInfo.off_devices; dev; dev = dev->next) {
          if (dev->config_info && (strcmp(dev->config_info, config_info) == 0))
              return TRUE;
      }
  
      return FALSE;
  }
  
  struct OdevAttributes *
  config_odev_allocate_attributes(void)
  {
      struct OdevAttributes *attribs =
          xnfcalloc(1, sizeof (struct OdevAttributes));
      attribs->fd = -1;
      return attribs;
  }
  
  void
  config_odev_free_attributes(struct OdevAttributes *attribs)
  {
      if (attribs->fd != -1)
          systemd_logind_release_fd(attribs->major, attribs->minor, attribs->fd);
      free(attribs->path);
      free(attribs->syspath);
      free(attribs->busid);
      free(attribs->driver);
      free(attribs);
  }