xref: /openbmc/qemu/hw/9pfs/coth.c (revision 9c4218e9)
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/osdep.h"
16 #include "qemu-common.h"
17 #include "block/thread-pool.h"
18 #include "qemu/coroutine.h"
19 #include "qemu/main-loop.h"
20 #include "coth.h"
21 
22 /* Called from QEMU I/O thread.  */
23 static void coroutine_enter_cb(void *opaque, int ret)
24 {
25     Coroutine *co = opaque;
26     qemu_coroutine_enter(co, NULL);
27 }
28 
29 /* Called from worker thread.  */
30 static int coroutine_enter_func(void *arg)
31 {
32     Coroutine *co = arg;
33     qemu_coroutine_enter(co, NULL);
34     return 0;
35 }
36 
37 void co_run_in_worker_bh(void *opaque)
38 {
39     Coroutine *co = opaque;
40     thread_pool_submit_aio(aio_get_thread_pool(qemu_get_aio_context()),
41                            coroutine_enter_func, co, coroutine_enter_cb, co);
42 }
43