mirror of https://github.com/nodejs/node.git
43 lines
954 B
C++
43 lines
954 B
C++
struct Argv {
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public:
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Argv() : Argv({"node", "-p", "process.version"}) {}
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Argv(const std::initializer_list<const char*> &args) {
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nr_args_ = args.size();
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int total_len = 0;
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for (auto it = args.begin(); it != args.end(); ++it) {
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total_len += strlen(*it) + 1;
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}
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argv_ = static_cast<char**>(malloc(nr_args_ * sizeof(char*)));
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argv_[0] = static_cast<char*>(malloc(total_len));
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int i = 0;
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int offset = 0;
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for (auto it = args.begin(); it != args.end(); ++it, ++i) {
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int len = strlen(*it) + 1;
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snprintf(argv_[0] + offset, len, "%s", *it);
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// Skip argv_[0] as it points the correct location already
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if (i > 0) {
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argv_[i] = argv_[0] + offset;
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}
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offset += len;
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}
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}
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~Argv() {
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free(argv_[0]);
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free(argv_);
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}
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int nr_args() const {
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return nr_args_;
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}
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char** operator*() const {
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return argv_;
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}
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private:
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char** argv_;
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int nr_args_;
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};
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