| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ppapi/native_client/src/trusted/plugin/pnacl_coordinator.h" |
| |
| #include <utility> |
| #include <vector> |
| |
| #include "native_client/src/include/checked_cast.h" |
| #include "native_client/src/include/portability_io.h" |
| #include "native_client/src/shared/platform/nacl_check.h" |
| #include "native_client/src/trusted/service_runtime/include/sys/stat.h" |
| |
| #include "ppapi/c/pp_bool.h" |
| #include "ppapi/c/pp_errors.h" |
| #include "ppapi/c/private/ppb_uma_private.h" |
| |
| #include "ppapi/native_client/src/trusted/plugin/manifest.h" |
| #include "ppapi/native_client/src/trusted/plugin/nacl_http_response_headers.h" |
| #include "ppapi/native_client/src/trusted/plugin/plugin.h" |
| #include "ppapi/native_client/src/trusted/plugin/plugin_error.h" |
| #include "ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h" |
| #include "ppapi/native_client/src/trusted/plugin/service_runtime.h" |
| #include "ppapi/native_client/src/trusted/plugin/temporary_file.h" |
| |
| namespace plugin { |
| |
| ////////////////////////////////////////////////////////////////////// |
| // Pnacl-specific manifest support. |
| ////////////////////////////////////////////////////////////////////// |
| |
| // The PNaCl linker gets file descriptors via the service runtime's |
| // reverse service lookup. The reverse service lookup requires a manifest. |
| // Normally, that manifest is an NMF containing mappings for shared libraries. |
| // Here, we provide a manifest that redirects to PNaCl component files |
| // that are part of Chrome. |
| class PnaclManifest : public Manifest { |
| public: |
| PnaclManifest() : manifest_base_url_(PnaclUrls::GetBaseUrl()) { } |
| virtual ~PnaclManifest() { } |
| |
| virtual bool GetProgramURL(nacl::string* full_url, |
| PnaclOptions* pnacl_options, |
| ErrorInfo* error_info) const { |
| // Does not contain program urls. |
| UNREFERENCED_PARAMETER(full_url); |
| UNREFERENCED_PARAMETER(pnacl_options); |
| UNREFERENCED_PARAMETER(error_info); |
| PLUGIN_PRINTF(("PnaclManifest does not contain a program\n")); |
| error_info->SetReport(ERROR_MANIFEST_GET_NEXE_URL, |
| "pnacl manifest does not contain a program."); |
| return false; |
| } |
| |
| virtual bool ResolveURL(const nacl::string& relative_url, |
| nacl::string* full_url, |
| ErrorInfo* error_info) const { |
| // Does not do general URL resolution, simply appends relative_url to |
| // the end of manifest_base_url_. |
| UNREFERENCED_PARAMETER(error_info); |
| *full_url = manifest_base_url_ + relative_url; |
| return true; |
| } |
| |
| virtual bool GetFileKeys(std::set<nacl::string>* keys) const { |
| // Does not support enumeration. |
| PLUGIN_PRINTF(("PnaclManifest does not support key enumeration\n")); |
| UNREFERENCED_PARAMETER(keys); |
| return false; |
| } |
| |
| virtual bool ResolveKey(const nacl::string& key, |
| nacl::string* full_url, |
| PnaclOptions* pnacl_options, |
| ErrorInfo* error_info) const { |
| // All of the component files are native (do not require pnacl translate). |
| pnacl_options->set_translate(false); |
| // We can only resolve keys in the files/ namespace. |
| const nacl::string kFilesPrefix = "files/"; |
| size_t files_prefix_pos = key.find(kFilesPrefix); |
| if (files_prefix_pos == nacl::string::npos) { |
| error_info->SetReport(ERROR_MANIFEST_RESOLVE_URL, |
| "key did not start with files/"); |
| return false; |
| } |
| // Resolve the full URL to the file. Provide it with a platform-specific |
| // prefix. |
| nacl::string key_basename = key.substr(kFilesPrefix.length()); |
| return ResolveURL(PnaclUrls::PrependPlatformPrefix(key_basename), |
| full_url, error_info); |
| } |
| |
| private: |
| NACL_DISALLOW_COPY_AND_ASSIGN(PnaclManifest); |
| |
| nacl::string manifest_base_url_; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////// |
| // UMA stat helpers. |
| ////////////////////////////////////////////////////////////////////// |
| |
| namespace { |
| |
| // Assume translation time metrics *can be* large. |
| // Up to 12 minutes. |
| const int64_t kTimeLargeMin = 10; // in ms |
| const int64_t kTimeLargeMax = 720000; // in ms |
| const uint32_t kTimeLargeBuckets = 100; |
| |
| const int32_t kSizeKBMin = 1; |
| const int32_t kSizeKBMax = 512*1024; // very large .pexe / .nexe. |
| const uint32_t kSizeKBBuckets = 100; |
| |
| const int32_t kRatioMin = 10; |
| const int32_t kRatioMax = 10*100; // max of 10x difference. |
| const uint32_t kRatioBuckets = 100; |
| |
| const int32_t kKBPSMin = 1; |
| const int32_t kKBPSMax = 30*1000; // max of 30 MB / sec. |
| const uint32_t kKBPSBuckets = 100; |
| |
| const PPB_UMA_Private* uma_interface = NULL; |
| |
| const PPB_UMA_Private* GetUMAInterface() { |
| if (uma_interface != NULL) { |
| return uma_interface; |
| } |
| pp::Module *module = pp::Module::Get(); |
| DCHECK(module); |
| uma_interface = static_cast<const PPB_UMA_Private*>( |
| module->GetBrowserInterface(PPB_UMA_PRIVATE_INTERFACE)); |
| return uma_interface; |
| } |
| |
| void HistogramTime(const std::string& name, int64_t ms) { |
| if (ms < 0) return; |
| |
| const PPB_UMA_Private* ptr = GetUMAInterface(); |
| if (ptr == NULL) return; |
| |
| ptr->HistogramCustomTimes(pp::Var(name).pp_var(), |
| ms, |
| kTimeLargeMin, kTimeLargeMax, |
| kTimeLargeBuckets); |
| } |
| |
| void HistogramSizeKB(const std::string& name, int32_t kb) { |
| if (kb < 0) return; |
| |
| const PPB_UMA_Private* ptr = GetUMAInterface(); |
| if (ptr == NULL) return; |
| |
| ptr->HistogramCustomCounts(pp::Var(name).pp_var(), |
| kb, |
| kSizeKBMin, kSizeKBMax, |
| kSizeKBBuckets); |
| } |
| |
| void HistogramRatio(const std::string& name, int64_t a, int64_t b) { |
| if (a < 0 || b <= 0) return; |
| |
| const PPB_UMA_Private* ptr = GetUMAInterface(); |
| if (ptr == NULL) return; |
| |
| ptr->HistogramCustomCounts(pp::Var(name).pp_var(), |
| 100 * a / b, |
| kRatioMin, kRatioMax, |
| kRatioBuckets); |
| } |
| |
| void HistogramKBPerSec(const std::string& name, double kb, double s) { |
| if (kb < 0.0 || s <= 0.0) return; |
| |
| const PPB_UMA_Private* ptr = GetUMAInterface(); |
| if (ptr == NULL) return; |
| |
| ptr->HistogramCustomCounts(pp::Var(name).pp_var(), |
| static_cast<int64_t>(kb / s), |
| kKBPSMin, kKBPSMax, |
| kKBPSBuckets); |
| } |
| |
| void HistogramEnumerateTranslationCache(bool hit) { |
| const PPB_UMA_Private* ptr = GetUMAInterface(); |
| if (ptr == NULL) return; |
| ptr->HistogramEnumeration(pp::Var("NaCl.Perf.PNaClCache.IsHit").pp_var(), |
| hit, 2); |
| } |
| |
| // Opt level is expected to be 0 to 3. Treating 4 as unknown. |
| const int8_t kOptUnknown = 4; |
| |
| void HistogramOptLevel(int8_t opt_level) { |
| const PPB_UMA_Private* ptr = GetUMAInterface(); |
| if (ptr == NULL) return; |
| if (opt_level < 0 || opt_level > 3) { |
| opt_level = kOptUnknown; |
| } |
| ptr->HistogramEnumeration(pp::Var("NaCl.Options.PNaCl.OptLevel").pp_var(), |
| opt_level, kOptUnknown+1); |
| } |
| |
| } // namespace |
| |
| |
| ////////////////////////////////////////////////////////////////////// |
| // The coordinator class. |
| ////////////////////////////////////////////////////////////////////// |
| |
| // Out-of-line destructor to keep it from getting put in every .o where |
| // callback_source.h is included |
| template<> |
| CallbackSource<FileStreamData>::~CallbackSource() {} |
| |
| PnaclCoordinator* PnaclCoordinator::BitcodeToNative( |
| Plugin* plugin, |
| const nacl::string& pexe_url, |
| const PnaclOptions& pnacl_options, |
| const pp::CompletionCallback& translate_notify_callback) { |
| PLUGIN_PRINTF(("PnaclCoordinator::BitcodeToNative (plugin=%p, pexe=%s)\n", |
| static_cast<void*>(plugin), pexe_url.c_str())); |
| PnaclCoordinator* coordinator = |
| new PnaclCoordinator(plugin, pexe_url, |
| pnacl_options, |
| translate_notify_callback); |
| coordinator->pnacl_init_time_ = NaClGetTimeOfDayMicroseconds(); |
| coordinator->off_the_record_ = |
| plugin->nacl_interface()->IsOffTheRecord(); |
| PLUGIN_PRINTF(("PnaclCoordinator::BitcodeToNative (manifest=%p, " |
| "off_the_record=%d)\n", |
| reinterpret_cast<const void*>(coordinator->manifest_.get()), |
| coordinator->off_the_record_)); |
| |
| // First start a network request for the pexe, to tickle the component |
| // updater's On-Demand resource throttler, and to get Last-Modified/ETag |
| // cache information. We can cancel the request later if there's |
| // a bitcode->nexe cache hit. |
| coordinator->OpenBitcodeStream(); |
| return coordinator; |
| } |
| |
| PnaclCoordinator::PnaclCoordinator( |
| Plugin* plugin, |
| const nacl::string& pexe_url, |
| const PnaclOptions& pnacl_options, |
| const pp::CompletionCallback& translate_notify_callback) |
| : translate_finish_error_(PP_OK), |
| plugin_(plugin), |
| translate_notify_callback_(translate_notify_callback), |
| translation_finished_reported_(false), |
| manifest_(new PnaclManifest()), |
| pexe_url_(pexe_url), |
| pnacl_options_(pnacl_options), |
| is_cache_hit_(PP_FALSE), |
| error_already_reported_(false), |
| off_the_record_(false), |
| pnacl_init_time_(0), |
| pexe_size_(0), |
| pexe_bytes_compiled_(0), |
| expected_pexe_size_(-1) { |
| PLUGIN_PRINTF(("PnaclCoordinator::PnaclCoordinator (this=%p, plugin=%p)\n", |
| static_cast<void*>(this), static_cast<void*>(plugin))); |
| callback_factory_.Initialize(this); |
| } |
| |
| PnaclCoordinator::~PnaclCoordinator() { |
| PLUGIN_PRINTF(("PnaclCoordinator::~PnaclCoordinator (this=%p, " |
| "translate_thread=%p\n", |
| static_cast<void*>(this), translate_thread_.get())); |
| // Stopping the translate thread will cause the translate thread to try to |
| // run translation_complete_callback_ on the main thread. This destructor is |
| // running from the main thread, and by the time it exits, callback_factory_ |
| // will have been destroyed. This will result in the cancellation of |
| // translation_complete_callback_, so no notification will be delivered. |
| if (translate_thread_.get() != NULL) { |
| translate_thread_->AbortSubprocesses(); |
| } |
| if (!translation_finished_reported_) { |
| plugin_->nacl_interface()->ReportTranslationFinished( |
| plugin_->pp_instance(), |
| PP_FALSE); |
| } |
| } |
| |
| nacl::DescWrapper* PnaclCoordinator::ReleaseTranslatedFD() { |
| DCHECK(temp_nexe_file_ != NULL); |
| return temp_nexe_file_->release_read_wrapper(); |
| } |
| |
| void PnaclCoordinator::ReportNonPpapiError(enum PluginErrorCode err_code, |
| const nacl::string& message) { |
| error_info_.SetReport(err_code, message); |
| ExitWithError(); |
| } |
| |
| void PnaclCoordinator::ReportPpapiError(enum PluginErrorCode err_code, |
| int32_t pp_error, |
| const nacl::string& message) { |
| nacl::stringstream ss; |
| ss << "PnaclCoordinator: " << message << " (pp_error=" << pp_error << ")."; |
| error_info_.SetReport(err_code, ss.str()); |
| ExitWithError(); |
| } |
| |
| void PnaclCoordinator::ExitWithError() { |
| PLUGIN_PRINTF(("PnaclCoordinator::ExitWithError (error_code=%d, " |
| "message='%s')\n", |
| error_info_.error_code(), |
| error_info_.message().c_str())); |
| plugin_->ReportLoadError(error_info_); |
| // Free all the intermediate callbacks we ever created. |
| // Note: this doesn't *cancel* the callbacks from the factories attached |
| // to the various helper classes (e.g., pnacl_resources). Thus, those |
| // callbacks may still run asynchronously. We let those run but ignore |
| // any other errors they may generate so that they do not end up running |
| // translate_notify_callback_, which has already been freed. |
| callback_factory_.CancelAll(); |
| if (!error_already_reported_) { |
| error_already_reported_ = true; |
| translation_finished_reported_ = true; |
| plugin_->nacl_interface()->ReportTranslationFinished( |
| plugin_->pp_instance(), |
| PP_FALSE); |
| translate_notify_callback_.Run(PP_ERROR_FAILED); |
| } else { |
| PLUGIN_PRINTF(("PnaclCoordinator::ExitWithError an earlier error was " |
| "already reported -- Skipping.\n")); |
| } |
| } |
| |
| // Signal that Pnacl translation completed normally. |
| void PnaclCoordinator::TranslateFinished(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::TranslateFinished (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| // Bail out if there was an earlier error (e.g., pexe load failure), |
| // or if there is an error from the translation thread. |
| if (translate_finish_error_ != PP_OK || pp_error != PP_OK) { |
| ExitWithError(); |
| return; |
| } |
| // Send out one last progress event, to finish up the progress events |
| // that were delayed (see the delay inserted in BitcodeGotCompiled). |
| if (ExpectedProgressKnown()) { |
| pexe_bytes_compiled_ = expected_pexe_size_; |
| plugin_->EnqueueProgressEvent(plugin::Plugin::kProgressEventProgress, |
| pexe_url_, |
| plugin::Plugin::LENGTH_IS_COMPUTABLE, |
| pexe_bytes_compiled_, |
| expected_pexe_size_); |
| } |
| |
| // If there are no errors, report stats from this thread (the main thread). |
| HistogramOptLevel(pnacl_options_.opt_level()); |
| const plugin::PnaclTimeStats& time_stats = translate_thread_->GetTimeStats(); |
| HistogramTime("NaCl.Perf.PNaClLoadTime.LoadCompiler", |
| time_stats.pnacl_llc_load_time / NACL_MICROS_PER_MILLI); |
| HistogramTime("NaCl.Perf.PNaClLoadTime.CompileTime", |
| time_stats.pnacl_compile_time / NACL_MICROS_PER_MILLI); |
| HistogramKBPerSec("NaCl.Perf.PNaClLoadTime.CompileKBPerSec", |
| pexe_size_ / 1024.0, |
| time_stats.pnacl_compile_time / 1000000.0); |
| HistogramTime("NaCl.Perf.PNaClLoadTime.LoadLinker", |
| time_stats.pnacl_ld_load_time / NACL_MICROS_PER_MILLI); |
| HistogramTime("NaCl.Perf.PNaClLoadTime.LinkTime", |
| time_stats.pnacl_link_time / NACL_MICROS_PER_MILLI); |
| HistogramSizeKB("NaCl.Perf.Size.Pexe", |
| static_cast<int64_t>(pexe_size_ / 1024)); |
| |
| struct nacl_abi_stat stbuf; |
| struct NaClDesc* desc = temp_nexe_file_->read_wrapper()->desc(); |
| int stat_ret; |
| if (0 != (stat_ret = (*((struct NaClDescVtbl const *) desc->base.vtbl)-> |
| Fstat)(desc, &stbuf))) { |
| PLUGIN_PRINTF(("PnaclCoordinator::TranslateFinished can't stat nexe.\n")); |
| } else { |
| size_t nexe_size = stbuf.nacl_abi_st_size; |
| HistogramSizeKB("NaCl.Perf.Size.PNaClTranslatedNexe", |
| static_cast<int64_t>(nexe_size / 1024)); |
| HistogramRatio("NaCl.Perf.Size.PexeNexeSizePct", pexe_size_, nexe_size); |
| } |
| |
| int64_t total_time = NaClGetTimeOfDayMicroseconds() - pnacl_init_time_; |
| HistogramTime("NaCl.Perf.PNaClLoadTime.TotalUncachedTime", |
| total_time / NACL_MICROS_PER_MILLI); |
| HistogramKBPerSec("NaCl.Perf.PNaClLoadTime.TotalUncachedKBPerSec", |
| pexe_size_ / 1024.0, |
| total_time / 1000000.0); |
| |
| // The nexe is written to the temp_nexe_file_. We must Reset() the file |
| // pointer to be able to read it again from the beginning. |
| temp_nexe_file_->Reset(); |
| |
| // Report to the browser that translation finished. The browser will take |
| // care of storing the nexe in the cache. |
| translation_finished_reported_ = true; |
| plugin_->nacl_interface()->ReportTranslationFinished( |
| plugin_->pp_instance(), PP_TRUE); |
| |
| NexeReadDidOpen(PP_OK); |
| } |
| |
| void PnaclCoordinator::NexeReadDidOpen(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::NexeReadDidOpen (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| if (pp_error != PP_OK) { |
| if (pp_error == PP_ERROR_FILENOTFOUND) { |
| ReportPpapiError(ERROR_PNACL_CACHE_FETCH_NOTFOUND, |
| pp_error, |
| "Failed to open translated nexe (not found)."); |
| return; |
| } |
| if (pp_error == PP_ERROR_NOACCESS) { |
| ReportPpapiError(ERROR_PNACL_CACHE_FETCH_NOACCESS, |
| pp_error, |
| "Failed to open translated nexe (no access)."); |
| return; |
| } |
| ReportPpapiError(ERROR_PNACL_CACHE_FETCH_OTHER, |
| pp_error, |
| "Failed to open translated nexe."); |
| return; |
| } |
| |
| translate_notify_callback_.Run(pp_error); |
| } |
| |
| void PnaclCoordinator::OpenBitcodeStream() { |
| // Now open the pexe stream. |
| streaming_downloader_.reset(new FileDownloader()); |
| streaming_downloader_->Initialize(plugin_); |
| // Mark the request as requesting a PNaCl bitcode file, |
| // so that component updater can detect this user action. |
| streaming_downloader_->set_request_headers( |
| "Accept: application/x-pnacl, */*"); |
| |
| // Even though we haven't started downloading, create the translation |
| // thread object immediately. This ensures that any pieces of the file |
| // that get downloaded before the compilation thread is accepting |
| // SRPCs won't get dropped. |
| translate_thread_.reset(new PnaclTranslateThread()); |
| if (translate_thread_ == NULL) { |
| ReportNonPpapiError( |
| ERROR_PNACL_THREAD_CREATE, |
| "PnaclCoordinator: could not allocate translation thread."); |
| return; |
| } |
| |
| pp::CompletionCallback cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::BitcodeStreamDidOpen); |
| if (!streaming_downloader_->OpenStream(pexe_url_, cb, this)) { |
| ReportNonPpapiError( |
| ERROR_PNACL_PEXE_FETCH_OTHER, |
| nacl::string("PnaclCoordinator: failed to open stream ") + pexe_url_); |
| return; |
| } |
| } |
| |
| void PnaclCoordinator::BitcodeStreamDidOpen(int32_t pp_error) { |
| if (pp_error != PP_OK) { |
| BitcodeStreamDidFinish(pp_error); |
| // We have not spun up the translation process yet, so we need to call |
| // TranslateFinished here. |
| TranslateFinished(pp_error); |
| return; |
| } |
| |
| // The component updater's resource throttles + OnDemand update/install |
| // should block the URL request until the compiler is present. Now we |
| // can load the resources (e.g. llc and ld nexes). |
| resources_.reset(new PnaclResources(plugin_, this, this->manifest_.get())); |
| CHECK(resources_ != NULL); |
| |
| // The first step of loading resources: read the resource info file. |
| pp::CompletionCallback resource_info_read_cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::ResourceInfoWasRead); |
| resources_->ReadResourceInfo(PnaclUrls::GetResourceInfoUrl(), |
| resource_info_read_cb); |
| } |
| |
| void PnaclCoordinator::ResourceInfoWasRead(int32_t pp_error) { |
| PLUGIN_PRINTF(("PluginCoordinator::ResourceInfoWasRead (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| // Second step of loading resources: call StartLoad to load pnacl-llc |
| // and pnacl-ld, based on the filenames found in the resource info file. |
| pp::CompletionCallback resources_cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::ResourcesDidLoad); |
| resources_->StartLoad(resources_cb); |
| } |
| |
| void PnaclCoordinator::ResourcesDidLoad(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::ResourcesDidLoad (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| if (pp_error != PP_OK) { |
| // Finer-grained error code should have already been reported by |
| // the PnaclResources class. |
| return; |
| } |
| |
| // Okay, now that we've started the HTTP request for the pexe |
| // and we've ensured that the PNaCl compiler + metadata is installed, |
| // get the cache key from the response headers and from the |
| // compiler's version metadata. |
| nacl::string headers = streaming_downloader_->GetResponseHeaders(); |
| NaClHttpResponseHeaders parser; |
| parser.Parse(headers); |
| |
| temp_nexe_file_.reset(new TempFile(plugin_)); |
| pp::CompletionCallback cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::NexeFdDidOpen); |
| int32_t nexe_fd_err = |
| plugin_->nacl_interface()->GetNexeFd( |
| plugin_->pp_instance(), |
| streaming_downloader_->url().c_str(), |
| // TODO(dschuff): Get this value from the pnacl json file after it |
| // rolls in from NaCl. |
| 1, |
| pnacl_options_.opt_level(), |
| parser.GetHeader("last-modified").c_str(), |
| parser.GetHeader("etag").c_str(), |
| PP_FromBool(parser.CacheControlNoStore()), |
| &is_cache_hit_, |
| temp_nexe_file_->existing_handle(), |
| cb.pp_completion_callback()); |
| if (nexe_fd_err < PP_OK_COMPLETIONPENDING) { |
| ReportPpapiError(ERROR_PNACL_CREATE_TEMP, nexe_fd_err, |
| nacl::string("Call to GetNexeFd failed")); |
| } |
| } |
| |
| void PnaclCoordinator::NexeFdDidOpen(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::NexeFdDidOpen (pp_error=%" |
| NACL_PRId32 ", hit=%d, handle=%d)\n", pp_error, |
| is_cache_hit_ == PP_TRUE, |
| *temp_nexe_file_->existing_handle())); |
| if (pp_error < PP_OK) { |
| ReportPpapiError(ERROR_PNACL_CREATE_TEMP, pp_error, |
| nacl::string("GetNexeFd failed")); |
| return; |
| } |
| |
| if (*temp_nexe_file_->existing_handle() == PP_kInvalidFileHandle) { |
| ReportNonPpapiError( |
| ERROR_PNACL_CREATE_TEMP, |
| nacl::string( |
| "PnaclCoordinator: Got bad temp file handle from GetNexeFd")); |
| return; |
| } |
| HistogramEnumerateTranslationCache(is_cache_hit_); |
| |
| if (is_cache_hit_ == PP_TRUE) { |
| // Cache hit -- no need to stream the rest of the file. |
| streaming_downloader_.reset(NULL); |
| // Open it for reading as the cached nexe file. |
| pp::CompletionCallback cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::NexeReadDidOpen); |
| temp_nexe_file_->Open(cb, false); |
| } else { |
| // Open an object file first so the translator can start writing to it |
| // during streaming translation. |
| obj_file_.reset(new TempFile(plugin_)); |
| pp::CompletionCallback obj_cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::ObjectFileDidOpen); |
| obj_file_->Open(obj_cb, true); |
| |
| // Meanwhile, a miss means we know we need to stream the bitcode, so stream |
| // the rest of it now. (Calling FinishStreaming means that the downloader |
| // will begin handing data to the coordinator, which is safe any time after |
| // the translate_thread_ object has been initialized). |
| pp::CompletionCallback finish_cb = callback_factory_.NewCallback( |
| &PnaclCoordinator::BitcodeStreamDidFinish); |
| streaming_downloader_->FinishStreaming(finish_cb); |
| } |
| } |
| |
| void PnaclCoordinator::BitcodeStreamDidFinish(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::BitcodeStreamDidFinish (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| if (pp_error != PP_OK) { |
| // Defer reporting the error and cleanup until after the translation |
| // thread returns, because it may be accessing the coordinator's |
| // objects or writing to the files. |
| translate_finish_error_ = pp_error; |
| if (pp_error == PP_ERROR_ABORTED) { |
| error_info_.SetReport(ERROR_PNACL_PEXE_FETCH_ABORTED, |
| "PnaclCoordinator: pexe load failed (aborted)."); |
| } |
| if (pp_error == PP_ERROR_NOACCESS) { |
| error_info_.SetReport(ERROR_PNACL_PEXE_FETCH_NOACCESS, |
| "PnaclCoordinator: pexe load failed (no access)."); |
| } else { |
| nacl::stringstream ss; |
| ss << "PnaclCoordinator: pexe load failed (pp_error=" << pp_error << ")."; |
| error_info_.SetReport(ERROR_PNACL_PEXE_FETCH_OTHER, ss.str()); |
| } |
| translate_thread_->AbortSubprocesses(); |
| } else { |
| // Compare download completion pct (100% now), to compile completion pct. |
| HistogramRatio("NaCl.Perf.PNaClLoadTime.PctCompiledWhenFullyDownloaded", |
| pexe_bytes_compiled_, pexe_size_); |
| } |
| } |
| |
| void PnaclCoordinator::BitcodeStreamGotData(int32_t pp_error, |
| FileStreamData data) { |
| PLUGIN_PRINTF(("PnaclCoordinator::BitcodeStreamGotData (pp_error=%" |
| NACL_PRId32 ", data=%p)\n", pp_error, data ? &(*data)[0] : 0)); |
| DCHECK(translate_thread_.get()); |
| |
| translate_thread_->PutBytes(data, pp_error); |
| // If pp_error > 0, then it represents the number of bytes received. |
| if (data && pp_error > 0) { |
| pexe_size_ += pp_error; |
| } |
| } |
| |
| StreamCallback PnaclCoordinator::GetCallback() { |
| return callback_factory_.NewCallbackWithOutput( |
| &PnaclCoordinator::BitcodeStreamGotData); |
| } |
| |
| void PnaclCoordinator::BitcodeGotCompiled(int32_t pp_error, |
| int64_t bytes_compiled) { |
| pexe_bytes_compiled_ += bytes_compiled; |
| // If we don't know the expected total yet, ask. |
| if (!ExpectedProgressKnown()) { |
| int64_t amount_downloaded; // dummy variable. |
| streaming_downloader_->GetDownloadProgress(&amount_downloaded, |
| &expected_pexe_size_); |
| } |
| // Hold off reporting the last few bytes of progress, since we don't know |
| // when they are actually completely compiled. "bytes_compiled" only means |
| // that bytes were sent to the compiler. |
| if (ExpectedProgressKnown()) { |
| if (!ShouldDelayProgressEvent()) { |
| plugin_->EnqueueProgressEvent(plugin::Plugin::kProgressEventProgress, |
| pexe_url_, |
| plugin::Plugin::LENGTH_IS_COMPUTABLE, |
| pexe_bytes_compiled_, |
| expected_pexe_size_); |
| } |
| } else { |
| plugin_->EnqueueProgressEvent(plugin::Plugin::kProgressEventProgress, |
| pexe_url_, |
| plugin::Plugin::LENGTH_IS_NOT_COMPUTABLE, |
| pexe_bytes_compiled_, |
| expected_pexe_size_); |
| } |
| } |
| |
| pp::CompletionCallback PnaclCoordinator::GetCompileProgressCallback( |
| int64_t bytes_compiled) { |
| return callback_factory_.NewCallback(&PnaclCoordinator::BitcodeGotCompiled, |
| bytes_compiled); |
| } |
| |
| void PnaclCoordinator::GetCurrentProgress(int64_t* bytes_loaded, |
| int64_t* bytes_total) { |
| *bytes_loaded = pexe_bytes_compiled_; |
| *bytes_total = expected_pexe_size_; |
| } |
| |
| void PnaclCoordinator::ObjectFileDidOpen(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::ObjectFileDidOpen (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| if (pp_error != PP_OK) { |
| ReportPpapiError(ERROR_PNACL_CREATE_TEMP, |
| pp_error, |
| "Failed to open scratch object file."); |
| return; |
| } |
| // Open the nexe file for connecting ld and sel_ldr. |
| // Start translation when done with this last step of setup! |
| pp::CompletionCallback cb = |
| callback_factory_.NewCallback(&PnaclCoordinator::RunTranslate); |
| temp_nexe_file_->Open(cb, true); |
| } |
| |
| void PnaclCoordinator::RunTranslate(int32_t pp_error) { |
| PLUGIN_PRINTF(("PnaclCoordinator::RunTranslate (pp_error=%" |
| NACL_PRId32 ")\n", pp_error)); |
| // Invoke llc followed by ld off the main thread. This allows use of |
| // blocking RPCs that would otherwise block the JavaScript main thread. |
| pp::CompletionCallback report_translate_finished = |
| callback_factory_.NewCallback(&PnaclCoordinator::TranslateFinished); |
| |
| CHECK(translate_thread_ != NULL); |
| translate_thread_->RunTranslate(report_translate_finished, |
| manifest_.get(), |
| obj_file_.get(), |
| temp_nexe_file_.get(), |
| &error_info_, |
| resources_.get(), |
| &pnacl_options_, |
| this, |
| plugin_); |
| } |
| |
| } // namespace plugin |
