1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef MOJO_SHELL_CHILD_PROCESS_H_ 6 #define MOJO_SHELL_CHILD_PROCESS_H_ 7 8 #include "base/macros.h" 9 #include "base/memory/scoped_ptr.h" 10 #include "mojo/embedder/scoped_platform_handle.h" 11 12 namespace base { 13 class CommandLine; 14 } 15 16 namespace mojo { 17 namespace shell { 18 19 // A base class for child processes -- i.e., code that is actually run within 20 // the child process. (Instances are manufactured by |Create()|.) 21 class ChildProcess { 22 public: 23 enum Type { 24 TYPE_TEST, 25 // Hosts a single app (see app_child_process(_host).*). 26 TYPE_APP 27 }; 28 29 virtual ~ChildProcess(); 30 31 // Returns null if the command line doesn't indicate that this is a child 32 // process. |main()| should call this, and if it returns non-null it should 33 // call |Main()| (without a message loop on the current thread). 34 static scoped_ptr<ChildProcess> Create(const base::CommandLine& command_line); 35 36 // To be implemented by subclasses. This is the "entrypoint" for a child 37 // process. Run with no message loop for the main thread. 38 virtual void Main() = 0; 39 40 protected: 41 ChildProcess(); 42 43 embedder::ScopedPlatformHandle* platform_channel() { 44 return &platform_channel_; 45 } 46 47 private: 48 // Available in |Main()| (after a successful |Create()|). 49 embedder::ScopedPlatformHandle platform_channel_; 50 51 DISALLOW_COPY_AND_ASSIGN(ChildProcess); 52 }; 53 54 } // namespace shell 55 } // namespace mojo 56 57 #endif // MOJO_SHELL_CHILD_PROCESS_H_ 58
