| 633 | } |
| 634 | |
| 635 | ScriptCompiler::CachedData* ModuleInternal::TryLoadScriptCache(const std::string& path) { |
| 636 | TNSPERF(); |
| 637 | if (!Constants::V8_CACHE_COMPILED_CODE) { |
| 638 | return nullptr; |
| 639 | } |
| 640 | |
| 641 | auto cachePath = path + ".cache"; |
| 642 | |
| 643 | struct stat result; |
| 644 | if (stat(cachePath.c_str(), &result) == 0) { |
| 645 | auto cacheLastModifiedTime = result.st_mtime; |
| 646 | if (stat(path.c_str(), &result) == 0) { |
| 647 | auto jsLastModifiedTime = result.st_mtime; |
| 648 | if (jsLastModifiedTime != cacheLastModifiedTime) { |
| 649 | // files have different dates, ignore the cache file (this is enforced by the |
| 650 | // SaveScriptCache function) |
| 651 | return nullptr; |
| 652 | } |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | int length = 0; |
| 657 | auto data = File::ReadBinary(cachePath, length); |
| 658 | if (!data) { |
| 659 | return nullptr; |
| 660 | } |
| 661 | |
| 662 | return new ScriptCompiler::CachedData(reinterpret_cast<uint8_t*>(data), length, ScriptCompiler::CachedData::BufferOwned); |
| 663 | } |
| 664 | |
| 665 | void ModuleInternal::SaveScriptCache(const Local<Script> script, const std::string& path) { |
| 666 | if (!Constants::V8_CACHE_COMPILED_CODE) { |