#ifndef RTABMAP_CORELIB_TEST_TESTUTILS_H_
#define RTABMAP_CORELIB_TEST_TESTUTILS_H_

#include <cstdlib>
#include <string>

#ifdef _WIN32
#include <process.h>
#else
#include <unistd.h>
#endif

namespace rtabmap {
namespace test {

// Portable PID. MSVC has _getpid() in <process.h>; POSIX has getpid() in
// <unistd.h>. Tests typically use this to disambiguate temp file names
// across parallel runs.
inline int getPid()
{
#ifdef _WIN32
	return _getpid();
#else
	return ::getpid();
#endif
}

// Portable replacement for hardcoded "/tmp/<name>". /tmp doesn't exist on
// Windows so any test that wrote there failed to open the file. This honors
// TEMP/TMP on Windows and TMPDIR on POSIX, with an OS-appropriate fallback.
// Forward slash is accepted by Win32 APIs so we don't bother converting.
inline std::string tempPath(const std::string & name)
{
#ifdef _WIN32
	const char * dir = std::getenv("TEMP");
	if(!dir) dir = std::getenv("TMP");
	if(!dir) dir = "C:/Temp";
#else
	const char * dir = std::getenv("TMPDIR");
	if(!dir) dir = "/tmp";
#endif
	return std::string(dir) + "/" + name;
}

} // namespace test
} // namespace rtabmap

#endif // RTABMAP_CORELIB_TEST_TESTUTILS_H_