components/nacl/renderer/trusted_plugin_channel.cc

   1 // Copyright 2014 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 "components/nacl/renderer/trusted_plugin_channel.h"
   6
   7 #include "base/callback_helpers.h"
   8 #include "components/nacl/common/nacl_renderer_messages.h"
   9 #include "components/nacl/renderer/histogram.h"
  10 #include "components/nacl/renderer/nexe_load_manager.h"
  11 #include "content/public/renderer/render_thread.h"
  12 #include "ipc/ipc_sync_channel.h"
  13 #include "ipc/ipc_message_macros.h"
  14 #include "ppapi/c/pp_errors.h"
  15
  16 namespace nacl {
  17
  18 TrustedPluginChannel::TrustedPluginChannel(
  19     NexeLoadManager* nexe_load_manager,
  20     const IPC::ChannelHandle& handle,
  21     base::WaitableEvent* shutdown_event,
  22     bool is_helper_nexe)
  23     : nexe_load_manager_(nexe_load_manager),
  24       is_helper_nexe_(is_helper_nexe) {
  25   channel_ = IPC::SyncChannel::Create(
  26       handle,
  27       IPC::Channel::MODE_CLIENT,
  28       this,
  29       content::RenderThread::Get()->GetIOMessageLoopProxy(),
  30       true,
  31       shutdown_event).Pass();
  32 }
  33
  34 TrustedPluginChannel::~TrustedPluginChannel() {
  35 }
  36
  37 bool TrustedPluginChannel::Send(IPC::Message* message) {
  38   return channel_->Send(message);
  39 }
  40
  41 bool TrustedPluginChannel::OnMessageReceived(const IPC::Message& msg) {
  42   bool handled = true;
  43   IPC_BEGIN_MESSAGE_MAP(TrustedPluginChannel, msg)
  44     IPC_MESSAGE_HANDLER(NaClRendererMsg_ReportExitStatus, OnReportExitStatus);
  45     IPC_MESSAGE_HANDLER(NaClRendererMsg_ReportLoadStatus, OnReportLoadStatus);
  46     IPC_MESSAGE_UNHANDLED(handled = false);
  47   IPC_END_MESSAGE_MAP()
  48   return handled;
  49 }
  50
  51 void TrustedPluginChannel::OnChannelError() {
  52   if (!is_helper_nexe_)
  53     nexe_load_manager_->NexeDidCrash();
  54 }
  55
  56 void TrustedPluginChannel::OnReportExitStatus(int exit_status) {
  57   if (!is_helper_nexe_)
  58     nexe_load_manager_->set_exit_status(exit_status);
  59 }
  60
  61 void TrustedPluginChannel::OnReportLoadStatus(NaClErrorCode load_status) {
  62   if (load_status < 0 || load_status > NACL_ERROR_CODE_MAX) {
  63     load_status = LOAD_STATUS_UNKNOWN;
  64   }
  65   // For now, we only report UMA for non-helper nexes
  66   // (don't report for the PNaCl translators nexes).
  67   if (!is_helper_nexe_) {
  68     HistogramEnumerate("NaCl.LoadStatus.SelLdr", load_status,
  69                        NACL_ERROR_CODE_MAX);
  70     // Gather data to see if being installed changes load outcomes.
  71     const char* name = nexe_load_manager_->is_installed()
  72                            ? "NaCl.LoadStatus.SelLdr.InstalledApp"
  73                            : "NaCl.LoadStatus.SelLdr.NotInstalledApp";
  74     HistogramEnumerate(name, load_status, NACL_ERROR_CODE_MAX);
  75   }
  76   if (load_status != LOAD_OK) {
  77     nexe_load_manager_->ReportLoadError(PP_NACL_ERROR_SEL_LDR_START_STATUS,
  78                                         NaClErrorString(load_status));
  79   }
  80 }
  81
  82 }  // namespace nacl