core: Keep track of telemetry for the current emulation session.

src/core/telemetry_session.cpp

@@ -0,0 +1,24 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/scm_rev.h"
+#include "core/telemetry_session.h"
+
+namespace Core {
+
+TelemetrySession::TelemetrySession() {
+    // TODO(bunnei): Replace with a backend that logs to our web service
+    backend = std::make_unique<Telemetry::NullVisitor>();
+}
+
+TelemetrySession::~TelemetrySession() {
+    // Complete the session, submitting to web service if necessary
+    // This is just a placeholder to wrap up the session once the core completes and this is
+    // destroyed. This will be moved elsewhere once we are actually doing real I/O with the service.
+    field_collection.Accept(*backend);
+    backend->Complete();
+    backend = nullptr;
+}
+
+} // namespace Core