chardev/chardev-sysemu.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include "qemu/osdep.h"
  26 #include "sysemu/sysemu.h"
  27 #include "chardev/char.h"
  28 #include "qemu/error-report.h"
  29 #include "chardev-internal.h"
  30
  31 static int chardev_machine_done_notify_one(Object *child, void *opaque)
  32 {
  33     Chardev *chr = (Chardev *)child;
  34     ChardevClass *class = CHARDEV_GET_CLASS(chr);
  35
  36     if (class->chr_machine_done) {
  37         return class->chr_machine_done(chr);
  38     }
  39
  40     return 0;
  41 }
  42
  43 static void chardev_machine_done_hook(Notifier *notifier, void *unused)
  44 {
  45     int ret = object_child_foreach(get_chardevs_root(),
  46                                    chardev_machine_done_notify_one, NULL);
  47
  48     if (ret) {
  49         error_report("Failed to call chardev machine_done hooks");
  50         exit(1);
  51     }
  52 }
  53
  54
  55 static Notifier chardev_machine_done_notify = {
  56     .notify = chardev_machine_done_hook,
  57 };
  58
  59 static void register_types(void)
  60 {
  61     /*
  62      * This must be done after machine init, since we register FEs with muxes
  63      * as part of realize functions like serial_isa_realizefn when -nographic
  64      * is specified.
  65      */
  66     qemu_add_machine_init_done_notifier(&chardev_machine_done_notify);
  67 }
  68
  69 type_init(register_types);