Function read_command_name

src/bvar/variable.cpp:541–565

// ============= export to files ==============

std::string read_command_name() {
    std::ifstream fin("/proc/self/stat");
    if (!fin.is_open()) {
        return std::string();
    }
    int pid = 0;
    std::string command_name;
    fin >> pid >> command_name;
    if (!fin.good()) {
        return std::string();
    }
    // Although the man page says the command name is in parenthesis, for
    // safety we normalize the name.
    std::string s;
    if (command_name.size() >= 2UL && command_name[0] == '(' &&
        butil::back_char(command_name) == ')') {
        // remove parenthesis.
        to_underscored_name(&s,
                            butil::StringPiece(command_name.data() + 1, 
                                              command_name.size() - 2UL));
    } else {
        to_underscored_name(&s, command_name);
    }
    return s;
}

class FileDumper : public Dumper {
public: