[PATCH v2] yield_until_fd_readable: make it work with any AioContect

[PATCH v2] yield_until_fd_readable: make it work with any AioContect

[Dietmar Maurer]

Simply use qemu_get_current_aio_context().

Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
---

Changelog for v2:

- use correct read handler in aio_set_fd_handler (instead of write handler)

 util/qemu-coroutine-io.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/util/qemu-coroutine-io.c b/util/qemu-coroutine-io.c
index 44a8969a69..cb39b5ebdc 100644
--- a/util/qemu-coroutine-io.c
+++ b/util/qemu-coroutine-io.c
@@ -66,25 +66,11 @@ qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send)
     return qemu_co_sendv_recvv(sockfd, &iov, 1, 0, bytes, do_send);
 }
 
-typedef struct {
-    Coroutine *co;
-    int fd;
-} FDYieldUntilData;
-
-static void fd_coroutine_enter(void *opaque)
-{
-    FDYieldUntilData *data = opaque;
-    qemu_set_fd_handler(data->fd, NULL, NULL, NULL);
-    qemu_coroutine_enter(data->co);
-}
-
 void coroutine_fn yield_until_fd_readable(int fd)
 {
-    FDYieldUntilData data;
-
     assert(qemu_in_coroutine());
-    data.co = qemu_coroutine_self();
-    data.fd = fd;
-    qemu_set_fd_handler(fd, fd_coroutine_enter, NULL, &data);
+    AioContext *ctx = qemu_get_current_aio_context();
+    aio_set_fd_handler(ctx, fd, false, (void (*)(void *))qemu_coroutine_enter, NULL, NULL, qemu_coroutine_self());
     qemu_coroutine_yield();
+    aio_set_fd_handler(ctx, fd, false, NULL, NULL, NULL, NULL);
 }
-- 
2.20.1

Re: [PATCH v2] yield_until_fd_readable: make it work with any AioContect

[no-reply]

Patchew URL: https://patchew.org/QEMU/20191020144750.1176-1-dietmar@proxmox.com/



Hi,

This series seems to have some coding style problems. See output below for
more information:

Subject: [PATCH v2] yield_until_fd_readable: make it work with any AioContect
Type: series
Message-id: 20191020144750.1176-1-dietmar@proxmox.com

=== TEST SCRIPT BEGIN ===
#!/bin/bash
git rev-parse base > /dev/null || exit 0
git config --local diff.renamelimit 0
git config --local diff.renames True
git config --local diff.algorithm histogram
./scripts/checkpatch.pl --mailback base..
=== TEST SCRIPT END ===

Switched to a new branch 'test'
5dabe8a yield_until_fd_readable: make it work with any AioContect

=== OUTPUT BEGIN ===
ERROR: line over 90 characters
#41: FILE: util/qemu-coroutine-io.c:73:
+    aio_set_fd_handler(ctx, fd, false, (void (*)(void *))qemu_coroutine_enter, NULL, NULL, qemu_coroutine_self());

total: 1 errors, 0 warnings, 28 lines checked

Commit 5dabe8a02051 (yield_until_fd_readable: make it work with any AioContect) has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
=== OUTPUT END ===

Test command exited with code: 1


The full log is available at
http://patchew.org/logs/20191020144750.1176-1-dietmar@proxmox.com/testing.checkpatch/?type=message.
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