The example currently assumes the file is at least 4*4096 bytes,
and errors when we get 0 reads on EOF. Fix this up.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
ucontext-cp.c:24:0: warning: "SIGSTKSZ" redefined
#define SIGSTKSZ 8192
In file included from /usr/include/signal.h:316:0,
from ucontext-cp.c:13:
/usr/include/aarch64-linux-gnu/bits/sigstack.h:30:0: note: this is the location of the previous definition
#define SIGSTKSZ 16384
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Allow multiple files being copied in one command, and print more logs
Also add timeout to indicate that different coroutines run in parallel actually
Signed-off-by: 李通洲 <carter.li@eoitek.com>
Coroutines are often used to simplify async programming,
and work great with liburing.
`ucontext` doesn't perform very good, but it's enough for an example.
It is not possible to install barrier.h and compat.h into the top-level
/usr/include directly since they are likely to conflict with other
software. io_uring.h could be confused with the system's kernel header
file.
Put liburing headers into <liburing/*.h> so there is no chance of
conflicts or confusion.
Existing applications continue to build successfully since the location
of <liburing.h> is unchanged. In-tree examples and tests require
modification because src/liburing.h is moved to src/include/liburing.h.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This patch makes the liburing build work as expected for e.g. the following
command:
make CFLAGS=-m32
and avoids that the build fails as follows for the above command:
make[1]: Entering directory 'liburing/test'
cc -m32 -o poll poll.c -luring
/usr/bin/ld: cannot find -luring
collect2: error: ld returned 1 exit status
Makefile:18: recipe for target 'poll' failed
make[1]: *** [poll] Error 1
make[1]: Leaving directory 'software/liburing/test'
Makefile:12: recipe for target 'all' failed
make: *** [all] Error 2
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This example misses an increment though the iovecs array. This causes
the same buffer to be filled from the block device every time. It would
be good to fix this since it is one of the first examples a new-comer to
io_uring is exposed too.
Signed-off-by: Stephen Bates <sbates@raithlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
In case malloc fails, the fix returns NULL to avoid NULL pointer
dereference.
Signed-off-by: zhangliguang <zhangliguang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Just a basic test case that does various forms of linked nops, and
a sample bare bones copy program using linked reads and writes.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We have io_uring_get_sqe() on the submission side, yet the completion
side is named _completion. Rename as follows:
io_uring_get_completion() io_uring_peek_cqe()
iO_uring_wait_completion() io_uring_wait_cqe()
This better tells the user what the _get variant does by calling it
_peek instead, and we move to using _cqe() as the postfix instead
of _completion.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Jens Axboe