void launchCygwin(char** argValues) {
std::string ARGV0 = *argValues;
++ argValues;
size_t lastBackslash = ARGV0.rfind('\\');
std::string directoryPrefix;
if (lastBackslash != std::string::npos) {
directoryPrefix = ARGV0.substr(0, lastBackslash + 1);
}
std::string cygwinBin = findCygwinBin();
const char* oldPath = getenv("PATH");
if (oldPath == 0) {
throw std::runtime_error("getenv(\"PATH\") implausibly returned null");
}
// Windows doesn't support setenv but does support putenv.
// We need cygwin1.dll to be on the PATH.
std::string putenvArgument = std::string("PATH=") + oldPath + ";" + cygwinBin;
if (putenv(putenvArgument.c_str()) == -1) {
throw unix_exception(std::string("putenv(\"") + putenvArgument + "\") failed");
}
checkReadableFile("Cygwin DLL", cygwinBin + "\\cygwin1.dll");
// Windows requires that we quote the arguments ourselves.
typedef std::vector<std::string> Arguments;
Arguments arguments;
std::string program = directoryPrefix + "ruby-launcher.exe";
// We mustn't quote the program argument but we must quote argv[0].
arguments.push_back(quote(program));
// Make sure we invoke the Cygwin ruby, not any native version that might be ahead of it on the PATH.
std::string rubyInterpreter = cygwinBin + "\\ruby.exe";
checkReadableFile("Cygwin Ruby", rubyInterpreter);
arguments.push_back(quote(rubyInterpreter));
while (*argValues != 0) {
const char* argument = *argValues;
arguments.push_back(quote(argument));
++ argValues;
}
typedef std::vector<char*> ArgValues;
ArgValues childArgValues;
for (Arguments::iterator it = arguments.begin(), en = arguments.end(); it != en; ++ it) {
std::string& argument = *it;
childArgValues.push_back(&argument[0]);
}
childArgValues.push_back(0);
WindowsDllErrorModeChange windowsDllErrorModeChange;
execv(program.c_str(), &childArgValues[0]);
throw unix_exception(std::string("execv(\"") + program + "\", [" + join(", ", arguments) + "]) failed");
}
ss_explicit_k module(S const& moduleName, int mode = RTLD_NOW)
: m_hmodule(load(moduleName, mode))
{
# ifdef STLSOFT_CF_EXCEPTION_SUPPORT
if(NULL == m_hmodule)
{
STLSOFT_THROW_X(unix_exception("Cannot load module", errno));
}
# endif /* STLSOFT_CF_EXCEPTION_SUPPORT */
}