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aio: add AioPollFn and io_poll() interface

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The new AioPollFn io_poll() argument to aio_set_fd_handler() and
aio_set_event_handler() is used in the next patch.

Keep this code change separate due to the number of files it touches.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20161201192652.9509-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2016-12-01 19:26:41 +00:00
parent 721671ade7
commit f6a51c84cd
17 changed files with 56 additions and 48 deletions
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5
include/block/aio.h
View file

@ -44,6 +44,7 @@ void qemu_aio_ref(void *p);
typedef struct AioHandler AioHandler;
typedef void QEMUBHFunc(void *opaque);
typedef bool AioPollFn(void *opaque);
typedef void IOHandler(void *opaque);
struct ThreadPool;
@ -329,6 +330,7 @@ void aio_set_fd_handler(AioContext *ctx,
bool is_external,
IOHandler *io_read,
IOHandler *io_write,
AioPollFn *io_poll,
void *opaque);
/* Register an event notifier and associated callbacks. Behaves very similarly
@ -341,7 +343,8 @@ void aio_set_fd_handler(AioContext *ctx,
void aio_set_event_notifier(AioContext *ctx,
EventNotifier *notifier,
bool is_external,
EventNotifierHandler *io_read);
EventNotifierHandler *io_read,
AioPollFn *io_poll);
/* Return a GSource that lets the main loop poll the file descriptors attached
* to this AioContext.