On Wed, Aug 03, 2022 at 02:07:58PM +0000, Arseniy Krasnov wrote:
This adds test to check,that when poll() returns POLLIN,POLLRDNORM bits,
next read call won't block.
Signed-off-by: Arseniy Krasnov <[email protected]>
---
tools/testing/vsock/vsock_test.c | 107 +++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index dc577461afc2..920dc5d5d979 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -18,6 +18,7 @@
#include <sys/socket.h>
#include <time.h>
#include <sys/mman.h>
+#include <poll.h>
#include "timeout.h"
#include "control.h"
@@ -596,6 +597,107 @@ static void
test_seqpacket_invalid_rec_buffer_server(const struct test_opts *opt
close(fd);
}
+static void test_stream_poll_rcvlowat_server(const struct test_opts *opts)
+{
+#define RCVLOWAT_BUF_SIZE 128
+ int fd;
+ int i;
+
+ fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
+ if (fd < 0) {
+ perror("accept");
+ exit(EXIT_FAILURE);
+ }
+
+ /* Send 1 byte. */
+ send_byte(fd, 1, 0);
+
+ control_writeln("SRVSENT");
+
+ /* Wait until client is ready to receive rest of data. */
+ control_expectln("CLNSENT");
+
+ for (i = 0; i < RCVLOWAT_BUF_SIZE - 1; i++)
+ send_byte(fd, 1, 0);
+
+ /* Keep socket in active state. */
+ control_expectln("POLLDONE");
+
+ close(fd);
+}
+
+static void test_stream_poll_rcvlowat_client(const struct test_opts *opts)
+{
+ unsigned long lowat_val = RCVLOWAT_BUF_SIZE;
+ char buf[RCVLOWAT_BUF_SIZE];
+ struct pollfd fds;
+ ssize_t read_res;
+ short poll_flags;
+ int fd;
+
+ fd = vsock_stream_connect(opts->peer_cid, 1234);
+ if (fd < 0) {
+ perror("connect");
+ exit(EXIT_FAILURE);
+ }
+
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVLOWAT,
+ &lowat_val, sizeof(lowat_val))) {
A small checkpatch warning that you can fix since you have to resend:
CHECK: Alignment should match open parenthesis
#76: FILE: tools/testing/vsock/vsock_test.c:645:
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVLOWAT,
+ &lowat_val, sizeof(lowat_val))) {
total: 0 errors, 0 warnings, 1 checks, 125 lines checked
Thanks,
Stefano
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