xref: /openbmc/qemu/hw/9pfs/coth.c (revision 36f96c4b)
1 /*
2  * 9p backend
3  *
4  * Copyright IBM, Corp. 2010
5  *
6  * Authors:
7  *  Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
8  *  Venkateswararao Jujjuri(JV) <jvrao@linux.vnet.ibm.com>
9  *
10  * This work is licensed under the terms of the GNU GPL, version 2.  See
11  * the COPYING file in the top-level directory.
12  *
13  */
14 
15 #include "qemu-common.h"
16 #include "block/thread-pool.h"
17 #include "qemu/coroutine.h"
18 #include "qemu/main-loop.h"
19 #include "coth.h"
20 
21 /* Called from QEMU I/O thread.  */
22 static void coroutine_enter_cb(void *opaque, int ret)
23 {
24     Coroutine *co = opaque;
25     qemu_coroutine_enter(co, NULL);
26 }
27 
28 /* Called from worker thread.  */
29 static int coroutine_enter_func(void *arg)
30 {
31     Coroutine *co = arg;
32     qemu_coroutine_enter(co, NULL);
33     return 0;
34 }
35 
36 void co_run_in_worker_bh(void *opaque)
37 {
38     Coroutine *co = opaque;
39     thread_pool_submit_aio(aio_get_thread_pool(qemu_get_aio_context()),
40                            coroutine_enter_func, co, coroutine_enter_cb, co);
41 }
42