qemu/hw/9pfs/virtio-9p-coth.c
Paolo Bonzini ebac1202c9 virtio-9p: use QEMU thread pool
The QEMU thread pool already has a mechanism to invoke callbacks in the main
thread.  It does not need an EventNotifier and it is more efficient too.
Use it instead of GAsyncQueue + GThreadPool + glue.

As a side effect, it silences Coverity's complaint about an unchecked
return value for event_notifier_init.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
(removed no more needed #include <glib.h> from virtio-9p-coth.h)
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
2015-11-30 12:36:12 +01:00

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C

/*
* Virtio 9p backend
*
* Copyright IBM, Corp. 2010
*
* Authors:
* Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
* Venkateswararao Jujjuri(JV) <jvrao@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
*/
#include "qemu-common.h"
#include "block/thread-pool.h"
#include "qemu/coroutine.h"
#include "qemu/main-loop.h"
#include "virtio-9p-coth.h"
/* Called from QEMU I/O thread. */
static void coroutine_enter_cb(void *opaque, int ret)
{
Coroutine *co = opaque;
qemu_coroutine_enter(co, NULL);
}
/* Called from worker thread. */
static int coroutine_enter_func(void *arg)
{
Coroutine *co = arg;
qemu_coroutine_enter(co, NULL);
return 0;
}
void co_run_in_worker_bh(void *opaque)
{
Coroutine *co = opaque;
thread_pool_submit_aio(qemu_get_aio_context()->thread_pool,
coroutine_enter_func, co, coroutine_enter_cb, co);
}