| 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 | /* |
| 16 | * Not so fast! You might want to read the 9p developer docs first: |
| 17 | * https://wiki.qemu.org/Documentation/9p |
| 18 | */ |
| 19 | |
| 20 | #include "qemu/osdep.h" |
| 21 | #include "block/thread-pool.h" |
| 22 | #include "qemu/coroutine.h" |
| 23 | #include "qemu/main-loop.h" |
| 24 | #include "coth.h" |
| 25 | |
| 26 | /* Called from QEMU I/O thread. */ |
| 27 | static void coroutine_enter_cb(void *opaque, int ret) |
| 28 | { |
| 29 | Coroutine *co = opaque; |
| 30 | qemu_coroutine_enter(co); |
| 31 | } |
| 32 | |
| 33 | /* Called from worker thread. */ |
| 34 | static int coroutine_enter_func(void *arg) |
| 35 | { |
| 36 | Coroutine *co = arg; |
| 37 | qemu_coroutine_enter(co); |
| 38 | return 0; |
| 39 | } |
| 40 | |
| 41 | void co_run_in_worker_bh(void *opaque) |
| 42 | { |
| 43 | Coroutine *co = opaque; |
| 44 | thread_pool_submit_aio(coroutine_enter_func, co, coroutine_enter_cb, co); |
| 45 | } |