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_RENDERER_PEPPER_PNACL_TRANSLATION_RESOURCE_HOST_H_ 6 #define CHROME_RENDERER_PEPPER_PNACL_TRANSLATION_RESOURCE_HOST_H_ 7 8 #include <map> 9 10 #include "ipc/ipc_platform_file.h" 11 #include "ipc/message_filter.h" 12 #include "ppapi/c/private/pp_file_handle.h" 13 #include "ppapi/shared_impl/tracked_callback.h" 14 15 namespace nacl { 16 struct PnaclCacheInfo; 17 } 18 19 // A class to keep track of requests made to the browser for resources that the 20 // PNaCl translator needs (e.g. descriptors for the translator nexes, temp 21 // files, and cached translations). 22 23 // "Resource" might not be the best name for the various things that pnacl 24 // needs from the browser since "Resource" is a Pepper thing... 25 class PnaclTranslationResourceHost : public IPC::MessageFilter { 26 public: 27 explicit PnaclTranslationResourceHost( 28 const scoped_refptr<base::MessageLoopProxy>& io_message_loop); 29 void RequestNexeFd(int render_view_id, 30 PP_Instance instance, 31 const nacl::PnaclCacheInfo& cache_info, 32 PP_Bool* is_hit, 33 PP_FileHandle* file_handle, 34 scoped_refptr<ppapi::TrackedCallback> callback); 35 void ReportTranslationFinished(PP_Instance instance, PP_Bool success); 36 37 protected: 38 virtual ~PnaclTranslationResourceHost(); 39 40 private: 41 class CacheRequestInfo { 42 public: 43 CacheRequestInfo(PP_Bool* hit, 44 PP_FileHandle* handle, 45 scoped_refptr<ppapi::TrackedCallback> cb); 46 47 ~CacheRequestInfo(); 48 49 PP_Bool* is_hit; 50 PP_FileHandle* file_handle; 51 scoped_refptr<ppapi::TrackedCallback> callback; 52 }; 53 54 // Maps the instance with an outstanding cache request to the info 55 // about that request. 56 typedef std::map<PP_Instance, CacheRequestInfo> CacheRequestInfoMap; 57 // IPC::MessageFilter implementation. 58 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; 59 virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE; 60 virtual void OnFilterRemoved() OVERRIDE; 61 virtual void OnChannelClosing() OVERRIDE; 62 63 void SendRequestNexeFd(int render_view_id, 64 PP_Instance instance, 65 const nacl::PnaclCacheInfo& cache_info, 66 PP_Bool* is_hit, 67 PP_FileHandle* file_handle, 68 scoped_refptr<ppapi::TrackedCallback> callback); 69 void SendReportTranslationFinished(PP_Instance instance, 70 PP_Bool success); 71 void OnNexeTempFileReply(PP_Instance instance, 72 bool is_hit, 73 IPC::PlatformFileForTransit file); 74 void CleanupCacheRequests(); 75 76 scoped_refptr<base::MessageLoopProxy> io_message_loop_; 77 78 // Should be accessed on the io thread. 79 IPC::Sender* sender_; 80 CacheRequestInfoMap pending_cache_requests_; 81 DISALLOW_COPY_AND_ASSIGN(PnaclTranslationResourceHost); 82 }; 83 84 #endif // CHROME_RENDERER_PEPPER_PNACL_TRANSLATION_RESOURCE_HOST_H_ 85