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