mirror of https://gitee.com/openkylin/nodejs.git
102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
#include <cstdio>
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#include <fstream>
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#include <iostream>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "libplatform/libplatform.h"
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#include "node_internals.h"
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#include "node_snapshot_builder.h"
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#include "util-inl.h"
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#include "v8.h"
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int BuildSnapshot(int argc, char* argv[]);
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#ifdef _WIN32
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#include <windows.h>
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int wmain(int argc, wchar_t* wargv[]) {
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// Windows needs conversion from wchar_t to char.
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// Convert argv to UTF8.
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char** argv = new char*[argc + 1];
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for (int i = 0; i < argc; i++) {
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// Compute the size of the required buffer
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DWORD size = WideCharToMultiByte(
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CP_UTF8, 0, wargv[i], -1, nullptr, 0, nullptr, nullptr);
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if (size == 0) {
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// This should never happen.
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fprintf(stderr, "Could not convert arguments to utf8.");
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exit(1);
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}
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// Do the actual conversion
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argv[i] = new char[size];
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DWORD result = WideCharToMultiByte(
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CP_UTF8, 0, wargv[i], -1, argv[i], size, nullptr, nullptr);
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if (result == 0) {
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// This should never happen.
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fprintf(stderr, "Could not convert arguments to utf8.");
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exit(1);
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}
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}
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argv[argc] = nullptr;
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#else // UNIX
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int main(int argc, char* argv[]) {
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argv = uv_setup_args(argc, argv);
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// Disable stdio buffering, it interacts poorly with printf()
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// calls elsewhere in the program (e.g., any logging from V8.)
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setvbuf(stdout, nullptr, _IONBF, 0);
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setvbuf(stderr, nullptr, _IONBF, 0);
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#endif // _WIN32
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v8::V8::SetFlagsFromString("--random_seed=42");
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v8::V8::SetFlagsFromString("--harmony-import-assertions");
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return BuildSnapshot(argc, argv);
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}
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int BuildSnapshot(int argc, char* argv[]) {
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if (argc < 2) {
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std::cerr << "Usage: " << argv[0] << " <path/to/output.cc>\n";
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std::cerr << " " << argv[0] << " --build-snapshot "
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<< "<path/to/script.js> <path/to/output.cc>\n";
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return 1;
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}
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std::unique_ptr<node::InitializationResult> result =
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node::InitializeOncePerProcess(
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std::vector<std::string>(argv, argv + argc));
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CHECK(!result->early_return());
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CHECK_EQ(result->exit_code(), 0);
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std::string out_path;
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if (node::per_process::cli_options->build_snapshot) {
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out_path = result->args()[2];
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} else {
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out_path = result->args()[1];
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}
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std::ofstream out(out_path, std::ios::out | std::ios::binary);
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if (!out) {
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std::cerr << "Cannot open " << out_path << "\n";
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return 1;
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}
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int exit_code = 0;
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{
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exit_code = node::SnapshotBuilder::Generate(
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out, result->args(), result->exec_args());
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if (exit_code == 0) {
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if (!out) {
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std::cerr << "Failed to write " << out_path << "\n";
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exit_code = 1;
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}
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}
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}
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node::TearDownOncePerProcess();
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return exit_code;
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}
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