| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_NACL_RENDERER_PNACL_TRANSLATION_RESOURCE_HOST_H_ |
| #define COMPONENTS_NACL_RENDERER_PNACL_TRANSLATION_RESOURCE_HOST_H_ |
| |
| #include <stdint.h> |
| |
| #include <map> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "ipc/ipc_platform_file.h" |
| #include "ipc/message_filter.h" |
| #include "ppapi/c/pp_bool.h" |
| #include "ppapi/c/pp_instance.h" |
| #include "ppapi/c/private/pp_file_handle.h" |
| |
| namespace base { |
| class SingleThreadTaskRunner; |
| } |
| |
| namespace nacl { |
| struct PnaclCacheInfo; |
| } |
| |
| // A class to keep track of requests made to the browser for resources that the |
| // PNaCl translator needs (e.g. descriptors for the translator nexes, temp |
| // files, and cached translations). |
| |
| // "Resource" might not be the best name for the various things that pnacl |
| // needs from the browser since "Resource" is a Pepper thing... |
| class PnaclTranslationResourceHost : public IPC::MessageFilter { |
| public: |
| typedef base::Callback<void(int32_t, bool, PP_FileHandle)> |
| RequestNexeFdCallback; |
| |
| explicit PnaclTranslationResourceHost( |
| scoped_refptr<base::SingleThreadTaskRunner> io_task_runner); |
| void RequestNexeFd(int render_view_id, |
| PP_Instance instance, |
| const nacl::PnaclCacheInfo& cache_info, |
| RequestNexeFdCallback callback); |
| void ReportTranslationFinished(PP_Instance instance, PP_Bool success); |
| |
| protected: |
| ~PnaclTranslationResourceHost() override; |
| |
| private: |
| // Maps the instance with an outstanding cache request to the info |
| // about that request. |
| typedef std::map<PP_Instance, RequestNexeFdCallback> CacheRequestInfoMap; |
| |
| // IPC::MessageFilter implementation. |
| bool OnMessageReceived(const IPC::Message& message) override; |
| void OnFilterAdded(IPC::Channel* channel) override; |
| void OnFilterRemoved() override; |
| void OnChannelClosing() override; |
| |
| void SendRequestNexeFd(int render_view_id, |
| PP_Instance instance, |
| const nacl::PnaclCacheInfo& cache_info, |
| RequestNexeFdCallback callback); |
| void SendReportTranslationFinished(PP_Instance instance, |
| PP_Bool success); |
| void OnNexeTempFileReply(PP_Instance instance, |
| bool is_hit, |
| IPC::PlatformFileForTransit file); |
| void CleanupCacheRequests(); |
| |
| scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_; |
| |
| // Should be accessed on the io thread. |
| IPC::Sender* sender_; |
| CacheRequestInfoMap pending_cache_requests_; |
| DISALLOW_COPY_AND_ASSIGN(PnaclTranslationResourceHost); |
| }; |
| |
| #endif // COMPONENTS_NACL_RENDERER_PNACL_TRANSLATION_RESOURCE_HOST_H_ |