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:
31: typedef enum {
32: COROUTINE_YIELD = 1,
33: COROUTINE_TERMINATE = 2,
34: } CoroutineAction;
35:
36: struct Coroutine {
37: CoroutineEntry *entry;
38: void *entry_arg;
39: Coroutine *caller;
40: QLIST_ENTRY(Coroutine) pool_next;
41: QTAILQ_ENTRY(Coroutine) co_queue_next;
42: };
43:
44: Coroutine *qemu_coroutine_new(void);
45: void qemu_coroutine_delete(Coroutine *co);
46: CoroutineAction qemu_coroutine_switch(Coroutine *from, Coroutine *to,
47: CoroutineAction action);
48:
49: #endif
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