bool JvmLauncher::startOutProcJvm()

in src/main/cpp/bootstrap/jvmlauncher.cpp [351:400]
43 lines of code
9 McCabe index (conditional complexity)

bool JvmLauncher::startOutProcJvm(const char *mainClassName, const std::list<std::string> &args, const std::list<std::string> &options, DWORD *retCode) {
    string cmdLine = '\"' + (suppressConsole ? javawExePath : javaExePath) + '\"';
    cmdLine.reserve(32*1024);
    for (list<string>::const_iterator it = options.begin(); it != options.end(); ++it) {
        cmdLine += " \"";
        cmdLine += *it;
        cmdLine += "\"";
    }
    
    // mainClass and args
    cmdLine += ' ';
    cmdLine += mainClassName;
    for (list<string>::const_iterator it = args.begin(); it != args.end(); ++it) {
        if (javaClientDllPath.empty() && *it == "-client") {
            logMsg("Removing -client option, client java dll not found.");
            // remove client parameter, no client java found
            continue;
        }
        cmdLine += " \"";
        cmdLine += *it;
        cmdLine += "\"";
    }

    logMsg("Command line:\n%s", cmdLine.c_str());
    if (cmdLine.size() >= 32*1024) {
        logErr(false, true, "Command line is too long. Length: %u. Maximum length: %u.", cmdLine.c_str(), 32*1024);
        return false;
    }

    STARTUPINFO si = {0};
    si.cb = sizeof (STARTUPINFO);
    PROCESS_INFORMATION pi = {0};

    char cmdLineStr[32*1024] = "";
    strcpy(cmdLineStr, cmdLine.c_str());
    if (!CreateProcess(NULL, cmdLineStr, NULL, NULL, FALSE, CREATE_SUSPENDED, NULL, NULL, &si, &pi)) {
        logErr(true, true, "Failed to create process");
        return false;
    }

    disableFolderVirtualization(pi.hProcess);
    ResumeThread(pi.hThread);
    WaitForSingleObject(pi.hProcess, INFINITE);
    if (retCode) {
        GetExitCodeProcess(pi.hProcess, retCode);
    }
    CloseHandle(pi.hProcess);
    CloseHandle(pi.hThread);
    return true;
}