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