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authorJens Axboe <axboe@kernel.dk>2019-08-29 08:40:34 -0600
committerJens Axboe <axboe@kernel.dk>2019-08-29 08:40:34 -0600
commit1ed37c52144de555e761500084dbffe24fede1c9 (patch)
tree6080249213a072d77d970b9a75328e6b6edbff2e
parent681ba88a0ec1ac2281b9e3664be964c8c1b3e528 (diff)
downloadliburing-1ed37c52144de555e761500084dbffe24fede1c9.tar.gz
liburing-1ed37c52144de555e761500084dbffe24fede1c9.tar.bz2
Add test case for poll hang
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--test/500f9fbadef8-test.c88
-rw-r--r--test/Makefile7
2 files changed, 93 insertions, 2 deletions
diff --git a/test/500f9fbadef8-test.c b/test/500f9fbadef8-test.c
new file mode 100644
index 0000000..88602ad
--- /dev/null
+++ b/test/500f9fbadef8-test.c
@@ -0,0 +1,88 @@
+/*
+ * Description: Single depth submit+wait poll hang test
+ *
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "liburing.h"
+
+#define BLOCKS 4096
+
+int main(int argc, char *argv[])
+{
+ struct io_uring ring;
+ struct io_uring_sqe *sqe;
+ struct io_uring_cqe *cqe;
+ struct iovec iov;
+ char buf[32];
+ off_t offset;
+ unsigned blocks;
+ int ret, fd;
+
+ if (posix_memalign(&iov.iov_base, 4096, 4096)) {
+ fprintf(stderr, "memalign failed\n");
+ return 1;
+ }
+ iov.iov_len = 4096;
+
+ ret = io_uring_queue_init(1, &ring, IORING_SETUP_IOPOLL);
+ if (ret) {
+ fprintf(stderr, "ring setup failed\n");
+ return 1;
+
+ }
+
+ sprintf(buf, "./XXXXXX");
+ mktemp(buf);
+ fd = open(buf, O_WRONLY | O_DIRECT | O_CREAT, 0644);
+ if (fd < 0) {
+ perror("mkstemp");
+ return 1;
+ }
+
+ offset = 0;
+ blocks = BLOCKS;
+ do {
+ sqe = io_uring_get_sqe(&ring);
+ if (!sqe) {
+ fprintf(stderr, "get sqe failed\n");
+ goto err;
+ }
+ io_uring_prep_writev(sqe, fd, &iov, 1, offset);
+ ret = io_uring_submit_and_wait(&ring, 1);
+ if (ret < 0) {
+ fprintf(stderr, "submit_and_wait: %d\n", ret);
+ goto err;
+ }
+ ret = io_uring_wait_cqe(&ring, &cqe);
+ if (ret < 0) {
+ fprintf(stderr, "wait completion: %d\n", ret);
+ goto err;
+ }
+ if (cqe->res != 4096) {
+ if (cqe->res == -EOPNOTSUPP)
+ goto skipped;
+ goto err;
+ }
+ io_uring_cqe_seen(&ring, cqe);
+ offset += 4096;
+ } while (--blocks);
+
+ close(fd);
+ unlink(buf);
+ return 0;
+err:
+ close(fd);
+ unlink(buf);
+ return 1;
+skipped:
+ fprintf(stderr, "Polling not supported in current dir, test skipped\n");
+ close(fd);
+ unlink(buf);
+ return 0;
+}
diff --git a/test/Makefile b/test/Makefile
index 4d056f8..2770219 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -4,14 +4,15 @@ override CFLAGS += -Wall -D_GNU_SOURCE -L../src/ -I../src/include/
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 eeed8b54e0df-test link \
- send_recvmsg a4c0b3decb33-test
+ send_recvmsg a4c0b3decb33-test 500f9fbadef8-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 \
- eeed8b54e0df-test.c link.c send_recvmsg.c a4c0b3decb33-test.c
+ eeed8b54e0df-test.c link.c send_recvmsg.c a4c0b3decb33-test.c \
+ 500f9fbadef8-test.c
test_objs := $(patsubst %.c,%.ol,$(test_srcs))
@@ -49,6 +50,8 @@ send_recvmsg: send_recvmsg.c
$(CC) $(CFLAGS) -o $@ send_recvmsg.c -luring
a4c0b3decb33-test: a4c0b3decb33-test.c
$(CC) $(CFLAGS) -o $@ a4c0b3decb33-test.c -luring
+500f9fbadef8-test: 500f9fbadef8-test.c
+ $(CC) $(CFLAGS) -o $@ 500f9fbadef8-test.c -luring
clean:
rm -f $(all_targets) $(test_objs)