diff mbox series

[04/18] tests/unit: drop hacky race avoidance in test-io-channel-command

Message ID 20230119180419.30304-5-alex.bennee@linaro.org
State Superseded
Headers show
Series testing/next updates (gitlab, docker, check-tcg) | expand

Commit Message

Alex Bennée Jan. 19, 2023, 6:04 p.m. UTC 
We don't need to play timing games to ensure one socat wins over the
other, just create the fifo they both can use before spawning the
processes. However in the process we need to disable two tests for
Windows platforms as we don't have an abstraction for mkfifo().

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1403
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
---
 tests/unit/test-io-channel-command.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/tests/unit/test-io-channel-command.c b/tests/unit/test-io-channel-command.c
index 19f72eab96..425e2f5594 100644
--- a/tests/unit/test-io-channel-command.c
+++ b/tests/unit/test-io-channel-command.c
@@ -20,6 +20,8 @@ 
 
 #include "qemu/osdep.h"
 #include <glib/gstdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include "io/channel-command.h"
 #include "io-channel-helpers.h"
 #include "qapi/error.h"
@@ -29,6 +31,7 @@ 
 
 static char *socat = NULL;
 
+#ifndef _WIN32
 static void test_io_channel_command_fifo(bool async)
 {
     g_autofree gchar *tmpdir = g_dir_make_tmp("qemu-test-io-channel.XXXXXX", NULL);
@@ -40,12 +43,13 @@  static void test_io_channel_command_fifo(bool async)
     QIOChannel *src, *dst;
     QIOChannelTest *test;
 
+    if (mkfifo(fifo, 0600)) {
+        g_error("mkfifo: %s", strerror(errno));
+    }
+
     src = QIO_CHANNEL(qio_channel_command_new_spawn((const char **) srcargv,
                                                     O_WRONLY,
                                                     &error_abort));
-    /* try to avoid a race to create the socket */
-    g_usleep(1000);
-
     dst = QIO_CHANNEL(qio_channel_command_new_spawn((const char **) dstargv,
                                                     O_RDONLY,
                                                     &error_abort));
@@ -60,7 +64,6 @@  static void test_io_channel_command_fifo(bool async)
     g_rmdir(tmpdir);
 }
 
-
 static void test_io_channel_command_fifo_async(void)
 {
     if (!socat) {
@@ -80,6 +83,7 @@  static void test_io_channel_command_fifo_sync(void)
 
     test_io_channel_command_fifo(false);
 }
+#endif
 
 
 static void test_io_channel_command_echo(bool async)
@@ -124,10 +128,12 @@  int main(int argc, char **argv)
 
     socat = g_find_program_in_path("socat");
 
+#ifndef _WIN32
     g_test_add_func("/io/channel/command/fifo/sync",
                     test_io_channel_command_fifo_sync);
     g_test_add_func("/io/channel/command/fifo/async",
                     test_io_channel_command_fifo_async);
+#endif
     g_test_add_func("/io/channel/command/echo/sync",
                     test_io_channel_command_echo_sync);
     g_test_add_func("/io/channel/command/echo/async",