vhost-user-test: do not reinvent glib-compat.h

glib-compat.h has the gunk to support both old-style and new-style
gthread functions.  Use it instead of reinventing it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Marc-André Lureau <marcandre.lureau@redhat.com>

tests/vhost-user-test.c

@@ -8,7 +8,6 @@
  *
  */
 
-#define QEMU_GLIB_COMPAT_H
 #include <glib.h>
 
 #include "libqtest.h"
@@ -30,12 +29,6 @@
 #define HAVE_MONOTONIC_TIME
 #endif
 
-#if GLIB_CHECK_VERSION(2, 32, 0)
-#define HAVE_MUTEX_INIT
-#define HAVE_COND_INIT
-#define HAVE_THREAD_NEW
-#endif
-
 #define QEMU_CMD_ACCEL  " -machine accel=tcg"
 #define QEMU_CMD_MEM    " -m 512 -object memory-backend-file,id=mem,size=512M,"\
                         "mem-path=%s,share=on -numa node,memdev=mem"
@@ -113,93 +106,21 @@ static VhostUserMsg m __attribute__ ((unused));
 
 int fds_num = 0, fds[VHOST_MEMORY_MAX_NREGIONS];
 static VhostUserMemory memory;
-static GMutex *data_mutex;
+static CompatGMutex data_mutex;
-static GCond *data_cond;
+static CompatGCond data_cond;
 
-static gint64 _get_time(void)
+#if !GLIB_CHECK_VERSION(2, 32, 0)
-{
+static gboolean g_cond_wait_until(CompatGCond cond, CompatGMutex mutex,
-#ifdef HAVE_MONOTONIC_TIME
+                                  gint64 end_time)
-    return g_get_monotonic_time();
-#else
-    GTimeVal time;
-    g_get_current_time(&time);
-
-    return time.tv_sec * G_TIME_SPAN_SECOND + time.tv_usec;
-#endif
-}
-
-static GMutex *_mutex_new(void)
-{
-    GMutex *mutex;
-
-#ifdef HAVE_MUTEX_INIT
-    mutex = g_new(GMutex, 1);
-    g_mutex_init(mutex);
-#else
-    mutex = g_mutex_new();
-#endif
-
-    return mutex;
-}
-
-static void _mutex_free(GMutex *mutex)
-{
-#ifdef HAVE_MUTEX_INIT
-    g_mutex_clear(mutex);
-    g_free(mutex);
-#else
-    g_mutex_free(mutex);
-#endif
-}
-
-static GCond *_cond_new(void)
-{
-    GCond *cond;
-
-#ifdef HAVE_COND_INIT
-    cond = g_new(GCond, 1);
-    g_cond_init(cond);
-#else
-    cond = g_cond_new();
-#endif
-
-    return cond;
-}
-
-static gboolean _cond_wait_until(GCond *cond, GMutex *mutex, gint64 end_time)
 {
     gboolean ret = FALSE;
-#ifdef HAVE_COND_INIT
+    end_time -= g_get_monotonic_time();
-    ret = g_cond_wait_until(cond, mutex, end_time);
-#else
     GTimeVal time = { end_time / G_TIME_SPAN_SECOND,
                       end_time % G_TIME_SPAN_SECOND };
     ret = g_cond_timed_wait(cond, mutex, &time);
-#endif
     return ret;
 }
-
-static void _cond_free(GCond *cond)
-{
-#ifdef HAVE_COND_INIT
-    g_cond_clear(cond);
-    g_free(cond);
-#else
-    g_cond_free(cond);
 #endif
-}
-
-static GThread *_thread_new(const gchar *name, GThreadFunc func, gpointer data)
-{
-    GThread *thread = NULL;
-    GError *error = NULL;
-#ifdef HAVE_THREAD_NEW
-    thread = g_thread_try_new(name, func, data, &error);
-#else
-    thread = g_thread_create(func, data, TRUE, &error);
-#endif
-    return thread;
-}
 
 static void read_guest_mem(void)
 {
@@ -208,11 +129,11 @@ static void read_guest_mem(void)
     int i, j;
     size_t size;
 
-    g_mutex_lock(data_mutex);
+    g_mutex_lock(&data_mutex);
 
-    end_time = _get_time() + 5 * G_TIME_SPAN_SECOND;
+    end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
     while (!fds_num) {
-        if (!_cond_wait_until(data_cond, data_mutex, end_time)) {
+        if (!g_cond_wait_until(&data_cond, &data_mutex, end_time)) {
             /* timeout has passed */
             g_assert(fds_num);
             break;
@@ -252,7 +173,7 @@ static void read_guest_mem(void)
     }
 
     g_assert_cmpint(1, ==, 1);
-    g_mutex_unlock(data_mutex);
+    g_mutex_unlock(&data_mutex);
 }
 
 static void *thread_function(void *data)
@@ -280,7 +201,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
         return;
     }
 
-    g_mutex_lock(data_mutex);
+    g_mutex_lock(&data_mutex);
     memcpy(p, buf, VHOST_USER_HDR_SIZE);
 
     if (msg.size) {
@@ -313,7 +234,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
         fds_num = qemu_chr_fe_get_msgfds(chr, fds, sizeof(fds) / sizeof(int));
 
         /* signal the test that it can continue */
-        g_cond_signal(data_cond);
+        g_cond_signal(&data_cond);
         break;
 
     case VHOST_USER_SET_VRING_KICK:
@@ -330,7 +251,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
     default:
         break;
     }
-    g_mutex_unlock(data_mutex);
+    g_mutex_unlock(&data_mutex);
 }
 
 static const char *init_hugepagefs(void)
@@ -395,9 +316,9 @@ int main(int argc, char **argv)
     qemu_chr_add_handlers(chr, chr_can_read, chr_read, NULL, chr);
 
     /* run the main loop thread so the chardev may operate */
-    data_mutex = _mutex_new();
+    g_mutex_init(&data_mutex);
-    data_cond = _cond_new();
+    g_cond_init(&data_cond);
-    _thread_new(NULL, thread_function, NULL);
+    g_thread_new(NULL, thread_function, NULL);
 
     qemu_cmd = g_strdup_printf(QEMU_CMD, hugefs, socket_path);
     s = qtest_start(qemu_cmd);
@@ -414,8 +335,6 @@ int main(int argc, char **argv)
     /* cleanup */
     unlink(socket_path);
     g_free(socket_path);
-    _cond_free(data_cond);
-    _mutex_free(data_mutex);
 
     return ret;
 }