Function get_executable_path

src/ccache/util/process.cpp:52–87

namespace util {

fs::path
get_executable_path()
{
#ifdef _WIN32
  std::vector<wchar_t> buf(MAX_PATH);
  while (true) {
    DWORD len =
      GetModuleFileNameW(nullptr, buf.data(), static_cast<DWORD>(buf.size()));
    if (len == 0) {
      return {};
    }
    if (len < static_cast<DWORD>(buf.size())) {
      return fs::path(std::wstring(buf.data(), len));
    }
    buf.resize(buf.size() * 2);
  }
#elif defined(__APPLE__)
  uint32_t size = PATH_MAX;
  std::vector<char> buf(size);
  if (_NSGetExecutablePath(buf.data(), &size) != 0) {
    buf.resize(size);
    if (_NSGetExecutablePath(buf.data(), &size) != 0) {
      return {};
    }
  }
  return fs::path(buf.data());
#else
  char buf[PATH_MAX];
  ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX - 1);
  if (len < 0) {
    return {};
  }
  buf[len] = '\0';
  return fs::path(buf);
#endif
}

const char*
get_hostname()