1 // Copyright (c) 2012 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 NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_RESOURCES_H_ 6 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_RESOURCES_H_ 7 8 #include <map> 9 #include <vector> 10 11 #include "native_client/src/include/nacl_macros.h" 12 #include "native_client/src/include/nacl_string.h" 13 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h" 14 15 #include "ppapi/c/private/pp_file_handle.h" 16 #include "ppapi/cpp/completion_callback.h" 17 18 #include "ppapi/native_client/src/trusted/plugin/plugin_error.h" 19 20 namespace plugin { 21 22 class Plugin; 23 24 // Loads a list of resources, providing a way to get file descriptors for 25 // these resources. URLs for resources are resolved by the manifest 26 // and point to pnacl component filesystem resources. 27 class PnaclResources { 28 public: PnaclResources(Plugin * plugin)29 explicit PnaclResources(Plugin* plugin) 30 : plugin_(plugin), 31 llc_file_handle_(PP_kInvalidFileHandle), 32 ld_file_handle_(PP_kInvalidFileHandle) { 33 } 34 virtual ~PnaclResources(); 35 36 // Read the resource info JSON file. This is the first step after 37 // construction; it has to be completed before StartLoad is called. 38 virtual void ReadResourceInfo( 39 const pp::CompletionCallback& resource_info_read_cb); 40 41 // Start loading the resources. 42 virtual void StartLoad( 43 const pp::CompletionCallback& all_loaded_callback); 44 GetLlcUrl()45 const nacl::string& GetLlcUrl() { return llc_tool_name_; } GetLdUrl()46 const nacl::string& GetLdUrl() { return ld_tool_name_; } 47 48 PP_FileHandle TakeLlcFileHandle(); 49 PP_FileHandle TakeLdFileHandle(); 50 51 private: 52 NACL_DISALLOW_COPY_AND_ASSIGN(PnaclResources); 53 54 // The plugin requesting the resource loading. 55 Plugin* plugin_; 56 57 // Tool names for llc and ld; read from the resource info file. 58 nacl::string llc_tool_name_; 59 nacl::string ld_tool_name_; 60 61 // File handles for llc and ld executables, after they've been opened. 62 // Only valid after the callback for StartLoad() has been called, and until 63 // TakeLlcFileHandle()/TakeLdFileHandle() is called. 64 PP_FileHandle llc_file_handle_; 65 PP_FileHandle ld_file_handle_; 66 }; 67 68 } // namespace plugin; 69 #endif // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_RESOURCES_H_ 70