Add test case for -EAGAIN issue
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/test/Makefile b/test/Makefile
index d2a3cc4..7866047 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -2,13 +2,14 @@
all_targets += poll poll-cancel ring-leak fsync io_uring_setup io_uring_register \
io_uring_enter nop sq-full cq-full 35fa71a030ca-test \
- 917257daa0fe-test b19062a56726-test
+ 917257daa0fe-test b19062a56726-test eeed8b54e0df-test
all: $(all_targets)
test_srcs := poll.c poll-cancel.c ring-leak.c fsync.c io_uring_setup.c \
io_uring_register.c io_uring_enter.c nop.c sq-full.c cq-full.c \
- 35fa71a030ca-test.c 917257daa0fe-test.c b19062a56726-test.c
+ 35fa71a030ca-test.c 917257daa0fe-test.c b19062a56726-test.c \
+ eeed8b54e0df-test
test_objs := $(patsubst %.c,%.ol,$(test_srcs))
@@ -38,6 +39,8 @@
$(CC) $(CFLAGS) -o $@ 917257daa0fe-test.c
b19062a56726-test: b19062a56726-test.c
$(CC) $(CFLAGS) -o $@ b19062a56726-test.c
+eeed8b54e0df-test: eeed8b54e0df-test.c
+ $(CC) $(CFLAGS) -o $@ eeed8b54e0df-test.c -luring
clean:
rm -f $(all_targets) $(test_objs)
diff --git a/test/eeed8b54e0df-test.c b/test/eeed8b54e0df-test.c
new file mode 100644
index 0000000..428b42b
--- /dev/null
+++ b/test/eeed8b54e0df-test.c
@@ -0,0 +1,87 @@
+/*
+ * Description: -EAGAIN handling
+ *
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "../src/liburing.h"
+
+static int get_file_fd(void)
+{
+ char *buf;
+ int fd;
+
+ fd = open("testfile", O_RDWR | O_CREAT, 0644);
+ if (fd < 0) {
+ perror("open file");
+ return -1;
+ }
+
+ buf = malloc(4096);
+ write(fd, buf, 4096);
+ fsync(fd);
+
+ if (posix_fadvise(fd, 0, 4096, POSIX_FADV_DONTNEED)) {
+ perror("fadvise");
+ close(fd);
+ free(buf);
+ return -1;
+ }
+
+ free(buf);
+ return fd;
+}
+
+static void put_file_fd(int fd)
+{
+ close(fd);
+ unlink("testfile");
+}
+
+int main(int argc, char *argv[])
+{
+ struct io_uring ring;
+ struct io_uring_sqe *sqe;
+ struct iovec iov;
+ int ret, fd;
+
+ iov.iov_base = malloc(4096);
+ iov.iov_len = 4096;
+
+ ret = io_uring_queue_init(2, &ring, 0);
+ if (ret) {
+ printf("ring setup failed\n");
+ return 1;
+
+ }
+
+ sqe = io_uring_get_sqe(&ring);
+ if (!sqe) {
+ printf("get sqe failed\n");
+ return 1;
+ }
+
+ fd = get_file_fd();
+ if (fd < 0)
+ return 1;
+
+ io_uring_prep_readv(sqe, fd, &iov, 1, 0);
+ sqe->rw_flags = RWF_NOWAIT;
+
+ ret = io_uring_submit(&ring);
+ if (ret != -EAGAIN) {
+ printf("Got submit %d, expected EAGAIN\n", ret);
+ goto err;
+ }
+
+ put_file_fd(fd);
+ return 0;
+err:
+ put_file_fd(fd);
+ return 1;
+}