Archipelago » qemu

/*

 * Coroutine internals

 *

 * Copyright (c) 2011 Kevin Wolf <kwolf@redhat.com>

 *

 * 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 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.

 */

#ifndef QEMU_COROUTINE_INT_H

#define QEMU_COROUTINE_INT_H

#include "qemu-queue.h"

#include "block/coroutine.h"

typedef enum {

    COROUTINE_YIELD = 1,

    COROUTINE_TERMINATE = 2,

} CoroutineAction;

struct Coroutine {

    CoroutineEntry *entry;

    void *entry_arg;

    Coroutine *caller;

    QSLIST_ENTRY(Coroutine) pool_next;

    QTAILQ_ENTRY(Coroutine) co_queue_next;

};

Coroutine *qemu_coroutine_new(void);

void qemu_coroutine_delete(Coroutine *co);

CoroutineAction qemu_coroutine_switch(Coroutine *from, Coroutine *to,

                                      CoroutineAction action);

#endif