diff options
| author | Jens Axboe <axboe@kernel.dk> | 2019-08-28 17:59:40 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-08-28 17:59:40 -0600 |
| commit | 681ba88a0ec1ac2281b9e3664be964c8c1b3e528 (patch) | |
| tree | dd4b6806e6c4703510291696d65d4759aa58f49e /src | |
| parent | 413ee338d46e4f6f2e5c89627b6279b809d4288a (diff) | |
Make io_uring_peek_cqe() return -EAGAIN for no CQEs
Currently we return 0 if someone calls io_uring_peek_cqe(), but
we really should be returning 0 only if we managed to find a
completion entry.
Return -EAGAIN to notify the caller that no entries are there.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'src')
| -rw-r--r-- | src/queue.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/queue.c b/src/queue.c index 007733c..203b534 100644 --- a/src/queue.c +++ b/src/queue.c @@ -23,7 +23,7 @@ static int __io_uring_get_cqe(struct io_uring *ring, if (*cqe_ptr) break; if (!wait) - break; + return -EAGAIN; ret = io_uring_enter(ring->ring_fd, 0, 1, IORING_ENTER_GETEVENTS, NULL); if (ret < 0) |