[PATCH 27/51] tests/qtest: Use send/recv for socket communication

[Bin Meng]

From: Xuzhou Cheng <xuzhou.cheng@windriver.com>

Socket communication in the libqtest and libqmp codes uses read()
and write() which work on any file descriptor on *nix, and sockets
in *nix are an example of a file descriptor.

However sockets on Windows do not use *nix-style file descriptors,
so read() and write() cannot be used on sockets on Windows.
Switch over to use send() and recv() instead which work on both
Windows and *nix.

Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
---

 tests/qtest/libqmp.c   | 4 ++--
 tests/qtest/libqtest.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/qtest/libqmp.c b/tests/qtest/libqmp.c
index ade26c15f0..995a39c1f8 100644
--- a/tests/qtest/libqmp.c
+++ b/tests/qtest/libqmp.c
@@ -36,7 +36,7 @@ typedef struct {
 
 static void socket_send(int fd, const char *buf, size_t size)
 {
-    size_t res = qemu_write_full(fd, buf, size);
+    ssize_t res = send(fd, buf, size, 0);
 
     assert(res == size);
 }
@@ -69,7 +69,7 @@ QDict *qmp_fd_receive(int fd)
         ssize_t len;
         char c;
 
-        len = read(fd, &c, 1);
+        len = recv(fd, &c, 1, 0);
         if (len == -1 && errno == EINTR) {
             continue;
         }
diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index 909583dad3..b7b7c9c541 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -438,7 +438,7 @@ void qtest_quit(QTestState *s)
 
 static void socket_send(int fd, const char *buf, size_t size)
 {
-    size_t res = qemu_write_full(fd, buf, size);
+    ssize_t res = send(fd, buf, size, 0);
 
     assert(res == size);
 }
@@ -470,7 +470,7 @@ static GString *qtest_client_socket_recv_line(QTestState *s)
         ssize_t len;
         char buffer[1024];
 
-        len = read(s->fd, buffer, sizeof(buffer));
+        len = recv(s->fd, buffer, sizeof(buffer), 0);
         if (len == -1 && errno == EINTR) {
             continue;
         }
-- 
2.34.1