components/cronet/android/cronet_url_request_context_adapter.h

   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 COMPONENTS_CRONET_ANDROID_CRONET_URL_REQUEST_CONTEXT_ADAPTER_H_
   6 #define COMPONENTS_CRONET_ANDROID_CRONET_URL_REQUEST_CONTEXT_ADAPTER_H_
   7
   8 #include <jni.h>
   9
  10 #include <queue>
  11 #include <string>
  12
  13 #include "base/android/scoped_java_ref.h"
  14 #include "base/callback.h"
  15 #include "base/macros.h"
  16 #include "base/memory/ref_counted.h"
  17 #include "base/memory/scoped_ptr.h"
  18 #include "base/threading/thread.h"
  19
  20 namespace base {
  21 class SingleThreadTaskRunner;
  22 }  // namespace base
  23
  24 namespace net {
  25 class WriteToFileNetLogObserver;
  26 class URLRequestContext;
  27 class ProxyConfigService;
  28 class SdchOwner;
  29 }  // namespace net
  30
  31 namespace cronet {
  32
  33 struct URLRequestContextConfig;
  34
  35 bool CronetUrlRequestContextAdapterRegisterJni(JNIEnv* env);
  36
  37 // Adapter between Java CronetUrlRequestContext and net::URLRequestContext.
  38 class CronetURLRequestContextAdapter {
  39  public:
  40   explicit CronetURLRequestContextAdapter(
  41       scoped_ptr<URLRequestContextConfig> context_config);
  42
  43   ~CronetURLRequestContextAdapter();
  44
  45   // Called on main Java thread to initialize URLRequestContext.
  46   void InitRequestContextOnMainThread(JNIEnv* env, jobject jcaller);
  47
  48   // Releases all resources for the request context and deletes the object.
  49   // Blocks until network thread is destroyed after running all pending tasks.
  50   void Destroy(JNIEnv* env, jobject jcaller);
  51
  52   // Posts a task that might depend on the context being initialized
  53   // to the network thread.
  54   void PostTaskToNetworkThread(const tracked_objects::Location& posted_from,
  55                                const base::Closure& callback);
  56
  57   bool IsOnNetworkThread() const;
  58
  59   net::URLRequestContext* GetURLRequestContext();
  60
  61   void StartNetLogToFile(JNIEnv* env, jobject jcaller, jstring jfile_name,
  62                          jboolean jlog_all);
  63
  64   void StopNetLog(JNIEnv* env, jobject jcaller);
  65
  66   // Default net::LOAD flags used to create requests.
  67   int default_load_flags() const { return default_load_flags_; }
  68
  69   // Called on main Java thread to initialize URLRequestContext.
  70   void InitRequestContextOnMainThread();
  71
  72  private:
  73   // Initializes |context_| on the Network thread.
  74   void InitializeOnNetworkThread(scoped_ptr<URLRequestContextConfig> config,
  75                                  const base::android::ScopedJavaGlobalRef<
  76                                      jobject>& jcronet_url_request_context);
  77
  78   // Runs a task that might depend on the context being initialized.
  79   // This method should only be run on the network thread.
  80   void RunTaskAfterContextInitOnNetworkThread(
  81       const base::Closure& task_to_run_after_context_init);
  82
  83   scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner() const;
  84
  85   void StartNetLogToFileOnNetworkThread(const std::string& file_name,
  86                                         bool log_all);
  87
  88   void StopNetLogOnNetworkThread();
  89
  90   // Network thread is owned by |this|, but is destroyed from java thread.
  91   base::Thread* network_thread_;
  92   // |write_to_file_observer_| and |context_| should only be accessed on
  93   // network thread.
  94   scoped_ptr<net::WriteToFileNetLogObserver> write_to_file_observer_;
  95   scoped_ptr<net::URLRequestContext> context_;
  96   scoped_ptr<net::ProxyConfigService> proxy_config_service_;
  97   scoped_ptr<net::SdchOwner> sdch_owner_;
  98
  99   // Context config is only valid untng context is initialized.
 100   scoped_ptr<URLRequestContextConfig> context_config_;
 101
 102   // A queue of tasks that need to be run after context has been initialized.
 103   std::queue<base::Closure> tasks_waiting_for_context_;
 104   bool is_context_initialized_;
 105   int default_load_flags_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(CronetURLRequestContextAdapter);
 108 };
 109
 110 }  // namespace cronet
 111
 112 #endif  // COMPONENTS_CRONET_ANDROID_CRONET_URL_REQUEST_CONTEXT_ADAPTER_H_