LXR qemu/qemu-coroutine-int.h

   1/*
   2 * Coroutine internals
   3 *
   4 * Copyright (c) 2011 Kevin Wolf <kwolf@redhat.com>
   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#ifndef QEMU_COROUTINE_INT_H
  26#define QEMU_COROUTINE_INT_H
  27
  28#include "qemu-queue.h"
  29#include "qemu-coroutine.h"
  30
  31typedef enum {
  32    COROUTINE_YIELD = 1,
  33    COROUTINE_TERMINATE = 2,
  34} CoroutineAction;
  35
  36struct Coroutine {
  37    CoroutineEntry *entry;
  38    void *entry_arg;
  39    Coroutine *caller;
  40    QSLIST_ENTRY(Coroutine) pool_next;
  41    QTAILQ_ENTRY(Coroutine) co_queue_next;
  42};
  43
  44Coroutine *qemu_coroutine_new(void);
  45void qemu_coroutine_delete(Coroutine *co);
  46CoroutineAction qemu_coroutine_switch(Coroutine *from, Coroutine *to,
  47                                      CoroutineAction action);
  48
  49#endif
  50