Wait until context is owned by worker thread to avoid context owner warningsubmit/tizen/20191029.083414accepted/tizen/unified/20191101.042138

 - We must ensure g_main_context_push_thread_default() is executed before
   mm-resource-manager return mainloop when calling mrp_mainloop_glib_get()

Change-Id: I18dca7760010d882584ab9feb5aba34eb005127b

2 files changed, 28 insertions, 5 deletions

diff --git a/packaging/murphy.spec b/packaging/murphy.spec
index ecf897a..6949b37 100644
--- a/packaging/murphy.spec
+++ b/packaging/murphy.spec
@@ -29,7 +29,7 @@
 Summary: Resource policy framework
 Name: murphy
 Version: 0.0.75
-Release: 17
+Release: 18
 License: BSD-3-Clause
 Group: System/Service
 URL: http://01.org/murphy/
diff --git a/src/common/glib-glue.c b/src/common/glib-glue.c
index a1f7275..22816cf 100644
--- a/src/common/glib-glue.c
+++ b/src/common/glib-glue.c
@@ -45,6 +45,7 @@ typedef struct {
     GMutex glue_internal_lock;
     GCond loop_cond;
     gint ref_count;
+    gboolean thread_ready;
 } glib_glue_t;
 
 
@@ -477,6 +478,7 @@ static void unregister(void *data)
     }
 
     g_mutex_unlock(&glue->glue_internal_lock);
+    g_main_context_unref(loop_ctx);
     glue_unref(glue);
 }
 
@@ -500,12 +502,18 @@ thread_main (gpointer data)
     g_return_val_if_fail(glue, NULL);
     GMainContext *thread_main_context = g_main_loop_get_context(glue->gml);
 
-    /* Set up the thread’s context and run it. */
-    g_main_context_push_thread_default (thread_main_context);
+    /* Set up the thread's context and run it. */
+    g_main_context_push_thread_default(thread_main_context);
 
-    g_main_loop_run (glue->gml);
+    g_mutex_lock(&glue->glue_internal_lock);
+    glue->thread_ready = TRUE;
+    g_cond_signal(&glue->loop_cond);
+    g_mutex_unlock(&glue->glue_internal_lock);
 
-    g_main_context_pop_thread_default (thread_main_context);
+    g_main_loop_run(glue->gml);
+    g_main_loop_unref(glue->gml);
+
+    g_main_context_pop_thread_default(thread_main_context);
 
     g_mutex_lock(&glue->glue_internal_lock);
     g_cond_signal(&glue->loop_cond);
@@ -514,6 +522,16 @@ thread_main (gpointer data)
     return NULL;
 }
 
+
+static gboolean check_owner(gpointer data)
+{
+    if (data != NULL)
+        g_assert(data == g_thread_self());
+
+    return FALSE;
+}
+
+
 int mrp_mainloop_register_with_glib(mrp_mainloop_t *ml, GMainLoop *gml)
 {
     glib_glue_t *glue;
@@ -534,6 +552,11 @@ int mrp_mainloop_register_with_glib(mrp_mainloop_t *ml, GMainLoop *gml)
                     mrp_log_error("Thread creation failed");
                     return FALSE;
                 }
+                g_mutex_lock(&glue->glue_internal_lock);
+                while (!glue->thread_ready)
+                    g_cond_wait(&glue->loop_cond, &glue->glue_internal_lock);
+                g_mutex_unlock(&glue->glue_internal_lock);
+                g_main_context_invoke(loop_ctx, check_owner, glue->worker);
             }
             return TRUE;
         }