src/ppapi/native_client/src/trusted/plugin/pnacl_resources.cc

   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 #include "ppapi/native_client/src/trusted/plugin/pnacl_resources.h"
   6
   7 #include "native_client/src/include/portability_io.h"
   8 #include "native_client/src/shared/platform/nacl_check.h"
   9 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
  10 #include "ppapi/c/pp_errors.h"
  11 #include "ppapi/native_client/src/trusted/plugin/plugin.h"
  12 #include "ppapi/native_client/src/trusted/plugin/utility.h"
  13
  14 namespace plugin {
  15
  16 namespace {
  17
  18 static const char kPnaclBaseUrl[] = "chrome://pnacl-translator/";
  19
  20 nacl::string GetFullUrl(const nacl::string& partial_url) {
  21   return nacl::string(kPnaclBaseUrl) + GetNaClInterface()->GetSandboxArch() +
  22          "/" + partial_url;
  23 }
  24
  25 }  // namespace
  26
  27 PnaclResources::PnaclResources(Plugin* plugin)
  28     : plugin_(plugin) {
  29   llc_file_info_ = kInvalidNaClFileInfo;
  30   ld_file_info_ = kInvalidNaClFileInfo;
  31 }
  32
  33 PnaclResources::~PnaclResources() {
  34   if (llc_file_info_.handle != PP_kInvalidFileHandle)
  35     CloseFileHandle(llc_file_info_.handle);
  36   if (ld_file_info_.handle != PP_kInvalidFileHandle)
  37     CloseFileHandle(ld_file_info_.handle);
  38 }
  39
  40 bool PnaclResources::ReadResourceInfo() {
  41   PP_Var pp_llc_tool_name_var;
  42   PP_Var pp_ld_tool_name_var;
  43   if (!plugin_->nacl_interface()->GetPnaclResourceInfo(
  44           plugin_->pp_instance(),
  45           &pp_llc_tool_name_var,
  46           &pp_ld_tool_name_var)) {
  47     return false;
  48   }
  49   pp::Var llc_tool_name(pp::PASS_REF, pp_llc_tool_name_var);
  50   pp::Var ld_tool_name(pp::PASS_REF, pp_ld_tool_name_var);
  51   llc_tool_name_ = GetFullUrl(llc_tool_name.AsString());
  52   ld_tool_name_ = GetFullUrl(ld_tool_name.AsString());
  53   return true;
  54 }
  55
  56 PP_NaClFileInfo PnaclResources::TakeLlcFileInfo() {
  57   PP_NaClFileInfo to_return = llc_file_info_;
  58   llc_file_info_ = kInvalidNaClFileInfo;
  59   return to_return;
  60 }
  61
  62 PP_NaClFileInfo PnaclResources::TakeLdFileInfo() {
  63   PP_NaClFileInfo to_return = ld_file_info_;
  64   ld_file_info_ = kInvalidNaClFileInfo;
  65   return to_return;
  66 }
  67
  68 bool PnaclResources::StartLoad() {
  69   PLUGIN_PRINTF(("PnaclResources::StartLoad\n"));
  70
  71   // Do a blocking load of each of the resources.
  72   plugin_->nacl_interface()->GetReadExecPnaclFd(llc_tool_name_.c_str(),
  73                                                 &llc_file_info_);
  74   plugin_->nacl_interface()->GetReadExecPnaclFd(ld_tool_name_.c_str(),
  75                                                 &ld_file_info_);
  76   return (llc_file_info_.handle != PP_kInvalidFileHandle &&
  77           ld_file_info_.handle != PP_kInvalidFileHandle);
  78 }
  79
  80 }  // namespace plugin