Add IORING_OP_POLL_CANCEL test

Signed-off-by: Jens Axboe <axboe@kernel.dk>

2 files changed, 102 insertions, 2 deletions

diff --git a/test/Makefile b/test/Makefile
index dcf7a56..574f90b 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 poll
+all_targets += io_uring-test io_uring-cp poll poll-cancel
 
 all: $(all_targets)
 
-test_srcs := io_uring-test.c io_uring-cp.c poll.c
+test_srcs := io_uring-test.c io_uring-cp.c poll.c poll-cancel.c
 
 test_objs := $(patsubst %.c,%.ol,$(test_srcs))
 
@@ -15,5 +15,7 @@ io_uring-cp: io_uring-cp.c
 	$(CC) $(CFLAGS) -o $@ io_uring-cp.c -luring
 poll: poll.c
 	$(CC) $(CFLAGS) -o $@ poll.c -luring
+poll-cancel: poll-cancel.c
+	$(CC) $(CFLAGS) -o $@ poll-cancel.c -luring
 clean:
 	rm -f $(all_targets) $(test_objs)
diff --git a/test/poll-cancel.c b/test/poll-cancel.c
new file mode 100644
index 0000000..ec12353
--- /dev/null
+++ b/test/poll-cancel.c
@@ -0,0 +1,98 @@
+/*
+ * Description: test io_uring poll cancel handling
+ *
+ */
+#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[])
+{
+	struct io_uring ring;
+	int pipe1[2];
+	struct io_uring_cqe *cqe;
+	struct io_uring_sqe *sqe;
+	unsigned long addr;
+	int ret;
+
+	if (pipe(pipe1) != 0) {
+		printf("pipe failed\n");
+		return 1;
+	}
+
+	ret = io_uring_queue_init(2, &ring, 0);
+	if (ret) {
+		printf("child: ring setup failed\n");
+		return 1;
+	}
+
+	sqe = io_uring_get_sqe(&ring);
+	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 = addr = (unsigned long) &sqe;
+
+	ret = io_uring_submit(&ring);
+	if (ret <= 0) {
+		printf("child: sqe submit failed\n");
+		return 1;
+	}
+
+	sqe = io_uring_get_sqe(&ring);
+	if (!sqe) {
+		printf("child: get sqe failed\n");
+		return 1;
+	}
+	sqe->opcode = IORING_OP_POLL_CANCEL;
+	sqe->flags = 0;
+	sqe->ioprio = 0;
+	sqe->fd = 0;
+	sqe->addr = addr;
+	sqe->off = 0;
+	sqe->len = 0;
+	sqe->buf_index = 0;
+	sqe->user_data = (unsigned long) &sqe;
+
+	ret = io_uring_submit(&ring);
+	if (ret <= 0) {
+		printf("child: sqe submit failed\n");
+		return 1;
+	}
+
+	ret = io_uring_wait_completion(&ring, &cqe);
+	if (ret < 0) {
+		printf("child: get cqe failed\n");
+		return 1;
+	}
+
+	if (cqe->user_data != addr) {
+		printf("first complete not poll\n");
+		return 1;
+	}
+
+	ret = io_uring_wait_completion(&ring, &cqe);
+	if (ret < 0) {
+		printf("parent: get failed\n");
+		return 1;
+	}
+	if (cqe->user_data != (unsigned long) &sqe) {
+		printf("second not cancel\n");
+		return 1;
+	}
+
+	return 0;
+}