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(aio_get_thread_pool(qemu_get_aio_context()), 45 coroutine_enter_func, co, coroutine_enter_cb, co); 46 } 47