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Unified Diff: content/common/service_manager/embedded_service_runner.h

Issue 2398783002: Rename a bunch of Mojo Application stuff to reference Services. (Closed)
Patch Set: . Created 4 years, 2 months ago
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Index: content/common/service_manager/embedded_service_runner.h
diff --git a/content/common/service_manager/embedded_service_runner.h b/content/common/service_manager/embedded_service_runner.h
new file mode 100644
index 0000000000000000000000000000000000000000..fda29a3cfe8181af4e9fd237f8ca1eb513c8cbc8
--- /dev/null
+++ b/content/common/service_manager/embedded_service_runner.h
@@ -0,0 +1,63 @@
+// Copyright 2016 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 CONTENT_COMMON_SERVICE_MANAGER_EMBEDDED_SERVICE_RUNNER_H_
+#define CONTENT_COMMON_SERVICE_MANAGER_EMBEDDED_SERVICE_RUNNER_H_
+
+#include <memory>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
+#include "base/strings/string_piece.h"
+#include "content/public/common/service_info.h"
+#include "services/shell/public/cpp/service.h"
+#include "services/shell/public/interfaces/service.mojom.h"
+
+namespace content {
+
+// Hosts an in-process service instance that supports multiple Service
+// connections. The first incoming connection will invoke a provided factory
+// function to instantiate the service, and the service will automatically be
+// torn down when its last connection is lost. The service may be launched and
+// torn down multiple times by a single EmbeddedServiceRunner instance.
+class EmbeddedServiceRunner {
+ public:
+ // Constructs a runner which hosts a service. If an existing instance of the
+ // service is not running when an incoming connection is made, details from
+ // |info| will be used to construct a new instance.
+ EmbeddedServiceRunner(const base::StringPiece& name,
+ const ServiceInfo& info);
+ ~EmbeddedServiceRunner();
+
+ // Binds an incoming ServiceRequest for this service. If the service isn't
+ // already running, it is started. Otherwise the request is bound to the
+ // running instance.
+ void BindServiceRequest(shell::mojom::ServiceRequest request);
+
+ // Sets a callback to run after the service loses its last connection and is
+ // torn down.
+ void SetQuitClosure(const base::Closure& quit_closure);
+
+ private:
+ class Instance;
+
+ void OnQuit();
+
+ // A reference to the service instance which may operate on the
+ // |task_runner_|'s thread.
+ scoped_refptr<Instance> instance_;
+
+ base::Closure quit_closure_;
+
+ base::WeakPtrFactory<EmbeddedServiceRunner> weak_factory_;
+
+ DISALLOW_COPY_AND_ASSIGN(EmbeddedServiceRunner);
+};
+
+} // namespace content
+
+#endif // CONTENT_COMMON_SERVICE_MANAGER_EMBEDDED_SERVICE_RUNNER_H_
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