content/public/browser/browser_child_process_host_delegate.h

   1 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_DELEGATE_H_
   6 #define CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_DELEGATE_H_
   7
   8 #include "content/common/content_export.h"
   9 #include "ipc/ipc_listener.h"
  10
  11 namespace content {
  12
  13 class ServiceRegistry;
  14
  15 // Interface that all users of BrowserChildProcessHost need to provide.
  16 class CONTENT_EXPORT BrowserChildProcessHostDelegate : public IPC::Listener {
  17  public:
  18   ~BrowserChildProcessHostDelegate() override {}
  19
  20   // Delegates return true if it's ok to shut down the child process (which is
  21   // the default return value). The exception is if the host is in the middle of
  22   // sending a request to the process, in which case the other side might think
  23   // it's ok to shutdown, when really it's not.
  24   virtual bool CanShutdown();
  25
  26   // Called when the process has been started.
  27   virtual void OnProcessLaunched() {}
  28
  29   // Called if the process failed to launch.  In this case the process never
  30   // started so there is no available exit code.
  31   virtual void OnProcessLaunchFailed() {}
  32
  33   // Called if the process crashed. |exit_code| is the status returned when the
  34   // process crashed (for posix, as returned from waitpid(), for Windows, as
  35   // returned from GetExitCodeProcess()).
  36   virtual void OnProcessCrashed(int exit_code) {}
  37
  38   // Returns the ServiceRegistry for this child process.
  39   virtual ServiceRegistry* GetServiceRegistry();
  40 };
  41
  42 };  // namespace content
  43
  44 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_DELEGATE_H_