[Hacky prototype] Create a shared-memory high-performance reporting service.

services/blamer/public/cpp/blamer_interface.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SERVICES_BLAMER_PUBLIC_CPP_BLAMER_INTERFACE_H_
+#define SERVICES_BLAMER_PUBLIC_CPP_BLAMER_INTERFACE_H_
+
+#include "base/macros.h"
+#include "services/service_manager/public/cpp/connector.h"
+#include "services/blamer/public/interfaces/shared_memory_heap_registry.mojom.h"
+
+namespace blamer {
+
+class SharedMemoryHeap;
+
+class BlamerInterface {
+ public:
+  ~BlamerInterface();
+
+  // Creates an instance of this service in the current process. If an instance
+  // already exists then returns the existing one.
+  BlamerInterface* CreateForProcess(service_manager::Connector* connector);
+
+  // Returns a singleton instance of this service in the current process.
+  BlamerInterface* GetForProcess();
+
+  // Returns the shared memory heap associated with this instance of the
+  // service.
+  SharedMemoryHeap* shared_memory_heap() const {
+    return shared_memory_heap_.get();
+  }
+
+ private:
+  BlamerInterface(service_manager::Connector* connector);
+
+  std::unique_ptr<SharedMemoryHeap> shared_memory_heap_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlamerInterface);
+};
+
+}  // namespace blamer
+
+#endif  // SERVICES_BLAMER_PUBLIC_CPP_BLAMER_INTERFACE_H_