chrome/browser/apps/app_shim/app_shim_host_manager_mac.h

   1 // Copyright 2013 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 CHROME_BROWSER_APPS_APP_SHIM_APP_SHIM_HOST_MANAGER_MAC_H_
   6 #define CHROME_BROWSER_APPS_APP_SHIM_APP_SHIM_HOST_MANAGER_MAC_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "chrome/browser/apps/app_shim/extension_app_shim_handler_mac.h"
  10 #include "chrome/browser/apps/app_shim/unix_domain_socket_acceptor.h"
  11 #include "content/public/browser/browser_thread.h"
  12
  13 namespace base {
  14 class FilePath;
  15 }
  16
  17 namespace test {
  18 class AppShimHostManagerTestApi;
  19 }
  20
  21 // The AppShimHostManager receives connections from app shims on a UNIX
  22 // socket (|acceptor_|) and creates a helper object to manage the connection.
  23 class AppShimHostManager : public apps::UnixDomainSocketAcceptor::Delegate,
  24                            public base::RefCountedThreadSafe<
  25                                AppShimHostManager,
  26                                content::BrowserThread::DeleteOnUIThread> {
  27  public:
  28   AppShimHostManager();
  29
  30   // Init passes this AppShimHostManager to PostTask which requires it to have
  31   // a non-zero refcount. Therefore, Init cannot be called in the constructor
  32   // since the refcount is zero at that point.
  33   void Init();
  34
  35   apps::ExtensionAppShimHandler* extension_app_shim_handler() {
  36     return &extension_app_shim_handler_;
  37   }
  38
  39  private:
  40   friend class base::RefCountedThreadSafe<AppShimHostManager>;
  41   friend struct content::BrowserThread::DeleteOnThread<
  42       content::BrowserThread::UI>;
  43   friend class base::DeleteHelper<AppShimHostManager>;
  44   friend class test::AppShimHostManagerTestApi;
  45   virtual ~AppShimHostManager();
  46
  47   // UnixDomainSocketAcceptor::Delegate implementation.
  48   void OnClientConnected(const IPC::ChannelHandle& handle) override;
  49   void OnListenError() override;
  50
  51   // The |acceptor_| must be created on a thread which allows blocking I/O, so
  52   // part of the initialization of this class must be carried out on the file
  53   // thread.
  54   void InitOnFileThread();
  55
  56   // Called on the IO thread to begin listening for connections from app shims.
  57   void ListenOnIOThread();
  58
  59   // The AppShimHostManager is only initialized if the Chrome process
  60   // successfully took the singleton lock. This prevents subsequent processes
  61   // from deleting existing app shim socket files.
  62   bool did_init_;
  63
  64   base::FilePath directory_in_tmp_;
  65
  66   scoped_ptr<apps::UnixDomainSocketAcceptor> acceptor_;
  67
  68   apps::ExtensionAppShimHandler extension_app_shim_handler_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(AppShimHostManager);
  71 };
  72
  73 #endif  // CHROME_BROWSER_APPS_APP_SHIM_APP_SHIM_HOST_MANAGER_MAC_H_