Add Sync related APIs to GPU command buffer: Part I

gpu/command_buffer/service/context_group.h

Index: gpu/command_buffer/service/context_group.h
diff --git a/gpu/command_buffer/service/context_group.h b/gpu/command_buffer/service/context_group.h
index 8eeaf531d66eb2aececf708772220cf663e2ab6f..afb36af74f50b490e9950ef4e8b37c8994d38e83 100644
--- a/gpu/command_buffer/service/context_group.h
+++ b/gpu/command_buffer/service/context_group.h
@@ -216,6 +216,24 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
     transformfeedbacks_id_map_.erase(client_id);
   }
 
+  void AddSyncId(GLuint client_id, GLsync service_id) {
+    syncs_id_map_[client_id] = service_id;
+  }
+
+  bool GetSyncServiceId(GLuint client_id, GLsync* service_id) const {
+    std::map<GLuint, GLsync>::const_iterator iter =
+        syncs_id_map_.find(client_id);
+    if (iter == syncs_id_map_.end())
+      return false;
+    if (service_id)
+      *service_id = iter->second;
+    return true;
+  }
+
+  void RemoveSyncId(GLuint client_id) {
+    syncs_id_map_.erase(client_id);
+  }
+
  private:
   friend class base::RefCounted<ContextGroup>;
   ~ContextGroup();
@@ -269,6 +287,7 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
   // Mappings from client side IDs to service side IDs.
   std::map<GLuint, GLuint> samplers_id_map_;
   std::map<GLuint, GLuint> transformfeedbacks_id_map_;
+  std::map<GLuint, GLsync> syncs_id_map_;

[piman, 2015/01/22 00:49:32]

nit: by the way, could all these be hash_maps instead, since we don't care about
the order (hash maps are usually cheaper).

[Zhenyao Mo, 2015/01/22 01:12:57]

Done.

 
   GLenum draw_buffer_;