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      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/trusted/desc/nacl_desc_wrapper.h"
     13 
     14 #include "ppapi/c/private/ppb_nacl_private.h"
     15 #include "ppapi/cpp/completion_callback.h"
     16 
     17 #include "ppapi/native_client/src/trusted/plugin/plugin_error.h"
     18 
     19 namespace plugin {
     20 
     21 class Plugin;
     22 
     23 // Loads a list of resources, providing a way to get file descriptors for
     24 // these resources.  URLs for resources are resolved by the manifest
     25 // and point to pnacl component filesystem resources.
     26 class PnaclResources {
     27  public:
     28   explicit PnaclResources(Plugin* plugin);
     29   virtual ~PnaclResources();
     30 
     31   // Read the resource info JSON file.  This is the first step after
     32   // construction; it has to be completed before StartLoad is called.
     33   bool ReadResourceInfo();
     34 
     35   // Start loading the resources.
     36   bool StartLoad();
     37 
     38   const std::string& GetLlcUrl() { return llc_tool_name_; }
     39   const std::string& GetLdUrl() { return ld_tool_name_; }
     40 
     41   PP_NaClFileInfo TakeLlcFileInfo();
     42   PP_NaClFileInfo TakeLdFileInfo();
     43 
     44  private:
     45   NACL_DISALLOW_COPY_AND_ASSIGN(PnaclResources);
     46 
     47   // The plugin requesting the resource loading.
     48   Plugin* plugin_;
     49 
     50   // Tool names for llc and ld; read from the resource info file.
     51   std::string llc_tool_name_;
     52   std::string ld_tool_name_;
     53 
     54   // File info for llc and ld executables, after they've been opened.
     55   // Only valid after the callback for StartLoad() has been called, and until
     56   // TakeLlcFileInfo()/TakeLdFileInfo() is called.
     57   PP_NaClFileInfo llc_file_info_;
     58   PP_NaClFileInfo ld_file_info_;
     59 };
     60 
     61 }  // namespace plugin
     62 #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_RESOURCES_H_
     63