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add API to CatalystInstanceImpl for executing optimized bundle
Reviewed By: tadeuzagallo Differential Revision: D3545345 fbshipit-source-id: 538fec77b816c3fd767e8c2eda81c78971996b17
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Michał Gregorczyk
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Facebook Github Bot 2
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Jul 12, 2016
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| // Copyright 2004-present Facebook. All Rights Reserved. | ||
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| #include "Executor.h" | ||
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| #include <errno.h> | ||
| #include <fcntl.h> | ||
| #include <fstream> | ||
| #include <stdio.h> | ||
| #include <sys/stat.h> | ||
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| #include <folly/Memory.h> | ||
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| namespace facebook { | ||
| namespace react { | ||
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| void JSExecutor::loadApplicationScript(std::string bundlePath, std::string sourceURL, int flags) { | ||
| if ((flags & UNPACKED_JS_SOURCE) == 0) { | ||
| throw std::runtime_error("No unpacked js source file"); | ||
| } | ||
| return loadApplicationScript( | ||
| JSBigMmapString::fromOptimizedBundle(bundlePath), | ||
| std::move(sourceURL)); | ||
| } | ||
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| static JSBigMmapString::Encoding encodingFromByte(uint8_t byte) { | ||
| switch (byte) { | ||
| case 0: | ||
| return JSBigMmapString::Encoding::Unknown; | ||
| case 1: | ||
| return JSBigMmapString::Encoding::Ascii; | ||
| case 2: | ||
| return JSBigMmapString::Encoding::Utf8; | ||
| case 3: | ||
| return JSBigMmapString::Encoding::Utf16; | ||
| default: | ||
| throw std::invalid_argument("Unknown bundle encoding"); | ||
| } | ||
| } | ||
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| std::unique_ptr<const JSBigMmapString> JSBigMmapString::fromOptimizedBundle( | ||
| const std::string& bundlePath) { | ||
| uint8_t sha1[20]; | ||
| uint8_t encoding; | ||
| struct stat fileInfo; | ||
| int fd = -1; | ||
| SCOPE_FAIL { CHECK(fd == -1 || ::close(fd) == 0); }; | ||
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| { | ||
| auto metaPath = bundlePath + UNPACKED_META_PATH_SUFFIX; | ||
| std::ifstream metaFile; | ||
| metaFile.exceptions(std::ifstream::eofbit | std::ifstream::failbit | std::ifstream::badbit); | ||
| metaFile.open(metaPath, std::ifstream::in | std::ifstream::binary); | ||
| metaFile.read(reinterpret_cast<char*>(sha1), sizeof(sha1)); | ||
| metaFile.read(reinterpret_cast<char*>(&encoding), sizeof(encoding)); | ||
| } | ||
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| { | ||
| auto sourcePath = bundlePath + UNPACKED_JS_SOURCE_PATH_SUFFIX; | ||
| fd = ::open(sourcePath.c_str(), O_RDONLY); | ||
| if (fd == -1) { | ||
| throw std::runtime_error(std::string("could not open js bundle file: ") + ::strerror(errno)); | ||
| } | ||
| } | ||
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| if (::fstat(fd, &fileInfo)) { | ||
| throw std::runtime_error(std::string("fstat on js bundle failed: ") + strerror(errno)); | ||
| } | ||
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| return folly::make_unique<const JSBigMmapString>( | ||
| fd, | ||
| fileInfo.st_size, | ||
| sha1, | ||
| encodingFromByte(encoding)); | ||
| } | ||
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| } // namespace react | ||
| } // namespace facebook |
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