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Diffstat (limited to 'test/eeed8b54e0df-test.c')
-rw-r--r--test/eeed8b54e0df-test.c87
1 files changed, 87 insertions, 0 deletions
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;
+}