| /* |
| * 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 "qemu/coroutine.h" |
| |
| typedef enum { |
| COROUTINE_YIELD = 1, |
| COROUTINE_TERMINATE = 2, |
| COROUTINE_ENTER = 3, |
| } CoroutineAction; |
| |
| struct Coroutine { |
| CoroutineEntry *entry; |
| void *entry_arg; |
| Coroutine *caller; |
| QSLIST_ENTRY(Coroutine) pool_next; |
| |
| /* Coroutines that should be woken up when we yield or terminate */ |
| QSIMPLEQ_HEAD(, Coroutine) co_queue_wakeup; |
| QSIMPLEQ_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); |
| void coroutine_fn qemu_co_queue_run_restart(Coroutine *co); |
| |
| #endif |