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authorJens Axboe <axboe@kernel.dk>2019-01-17 11:40:24 -0700
committerJens Axboe <axboe@kernel.dk>2019-01-17 11:40:24 -0700
commitce899b79f93d077ddce837656f59e79b2296fb71 (patch)
treeab0c6f59a2f8018cb8017fb668e74c5683080b00 /test
parent61102796612a867d85ee4b3c5a660e1f4b1c2766 (diff)
downloadliburing-ce899b79f93d077ddce837656f59e79b2296fb71.tar.gz
liburing-ce899b79f93d077ddce837656f59e79b2296fb71.tar.bz2
Add test case for IORING_OP_POLL
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'test')
-rw-r--r--test/Makefile7
-rw-r--r--test/poll.c135
2 files changed, 139 insertions, 3 deletions
diff --git a/test/Makefile b/test/Makefile
index 3ec3c4d..dcf7a56 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,11 +1,11 @@
CC = gcc
CFLAGS ?= -g -O2 -Wall -D_GNU_SOURCE -L../src/
-all_targets += io_uring-test io_uring-cp
+all_targets += io_uring-test io_uring-cp poll
all: $(all_targets)
-test_srcs := io_uring-test.c io_uring-cp.c
+test_srcs := io_uring-test.c io_uring-cp.c poll.c
test_objs := $(patsubst %.c,%.ol,$(test_srcs))
@@ -13,6 +13,7 @@ io_uring-test: io_uring-test.c
$(CC) $(CFLAGS) -o $@ io_uring-test.c -luring
io_uring-cp: io_uring-cp.c
$(CC) $(CFLAGS) -o $@ io_uring-cp.c -luring
-
+poll: poll.c
+ $(CC) $(CFLAGS) -o $@ poll.c -luring
clean:
rm -f $(all_targets) $(test_objs)
diff --git a/test/poll.c b/test/poll.c
new file mode 100644
index 0000000..3316068
--- /dev/null
+++ b/test/poll.c
@@ -0,0 +1,135 @@
+/*
+ * Description: test io_uring poll handling
+ *
+ * Based on 22.t from libaio
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/poll.h>
+#include <sys/wait.h>
+
+#include "../src/liburing.h"
+
+int main(int argc, char *argv[])
+{
+ pid_t parent = getpid(), p;
+ int pipe1[2], pipe2[2];
+ struct io_uring cring, pring;
+ struct io_uring_cqe *cqe;
+ struct io_uring_sqe *sqe;
+ int ret;
+
+ if (pipe(pipe1) != 0 || pipe(pipe2) != 0) {
+ printf("pipe failed\n");
+ return 1;
+ }
+
+ p = fork();
+ switch (p) {
+ case -1:
+ printf("fork failed\n");
+ exit(2);
+ case 0:
+ close(pipe1[1]);
+ close(pipe2[0]);
+
+ ret = io_uring_queue_init(1, &cring, 0);
+ if (ret) {
+ printf("child: ring setup failed\n");
+ return 1;
+ }
+
+ sqe = io_uring_get_sqe(&cring);
+ if (!sqe) {
+ printf("child: get sqe failed\n");
+ return 1;
+ }
+
+ sqe->opcode = IORING_OP_POLL;
+ sqe->flags = 0;
+ sqe->ioprio = 0;
+ sqe->fd = pipe1[0];
+ sqe->addr = POLLIN;
+ sqe->off = 0;
+ sqe->len = 0;
+ sqe->buf_index = 0;
+ sqe->user_data = (unsigned long) &sqe;
+
+ ret = io_uring_submit(&cring);
+ if (ret <= 0) {
+ printf("child: sqe submit failed\n");
+ return 1;
+ }
+
+ do {
+ if (getppid() != parent) {
+ printf("parent died\n");
+ exit(2);
+ }
+ ret = io_uring_wait_completion(&cring, &cqe);
+ } while (ret != 0);
+
+ if (ret < 0) {
+ printf("child: completion get failed\n");
+ return 1;
+ }
+
+ do {
+ errno = 0;
+ ret = write(pipe2[1], "foo", 3);
+ } while (ret == -1 && errno == EINTR);
+
+ exit(0);
+ default:
+ close(pipe1[0]);
+ close(pipe2[1]);
+
+ ret = io_uring_queue_init(1, &pring, 0);
+ if (ret) {
+ printf("parent: ring setup failed\n");
+ return 1;
+ }
+
+ sqe = io_uring_get_sqe(&pring);
+ if (!sqe) {
+ printf("parent: get sqe failed\n");
+ return 1;
+ }
+
+ sqe->opcode = IORING_OP_POLL;
+ sqe->flags = 0;
+ sqe->ioprio = 0;
+ sqe->fd = pipe2[0];
+ sqe->addr = POLLIN;
+ sqe->off = 0;
+ sqe->len = 0;
+ sqe->buf_index = 0;
+ sqe->user_data = (unsigned long) &sqe;
+
+ ret = io_uring_submit(&pring);
+ if (ret <= 0) {
+ printf("parent: sqe submit failed\n");
+ return 1;
+ }
+
+ kill(p, SIGUSR1);
+
+ ret = io_uring_wait_completion(&pring, &cqe);
+ if (ret < 0) {
+ printf("parent: cqe get failed\n");
+ return 1;
+ }
+ if (cqe->user_data != (unsigned long) &sqe) {
+ printf("parent: cqe wrong fd\n");
+ return 1;
+ }
+ if ((cqe->res & POLLIN) != POLLIN) {
+ printf("parent: cqe did not report readable fd\n");
+ return 1;
+ }
+
+ return 0;
+ }
+}