libcruft-util/exe_win32.cpp

36 lines
970 B
C++

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2010-2016 Danny Robson <danny@nerdcruft.net>
*/
#include "exe.hpp"
#include "win32/except.hpp"
#include "win32/windows.hpp"
#include <filesystem>
#include <vector>
///////////////////////////////////////////////////////////////////////////////
std::filesystem::path
cruft::image_path (void)
{
std::vector<char> resolved (256);
retry:
const auto written = GetModuleFileName (nullptr, resolved.data (), static_cast<DWORD> (resolved.size ()));
if (written == 0)
win32::error::throw_code ();
if (written == resolved.size ()) {
resolved.resize (resolved.size () * 2);
goto retry;
}
return std::filesystem::path (resolved.data (), resolved.data () + written);
}