system.h

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#ifndef A_UTIL_UTIL_SYSTEM_SYSTEM_HEADER_INCLUDED
#define A_UTIL_UTIL_SYSTEM_SYSTEM_HEADER_INCLUDED
 
#include <a_util/base/types.h>      //timestamp_t
#include <a_util/filesystem/path.h> //Path
 
#include <string>
 
namespace a_util {
namespace system {
std::string getCurrentUserName();

std::string getHostname();

a_util::filesystem::Path getExecutablePath();

int getLastSystemError();

void resetLastSystemError();

std::string formatSystemError(int system_error_code);

void sleepMilliseconds(std::uint32_t ms);

void sleepMicroseconds(std::uint64_t us);

timestamp_t getCurrentMilliseconds();

timestamp_t getCurrentMicroseconds();

class HighResSchedulingSupport {
public:
    HighResSchedulingSupport();

    ~HighResSchedulingSupport();

    bool isSupported() const;
 
private:
    HighResSchedulingSupport(const HighResSchedulingSupport&);            // = delete;
    HighResSchedulingSupport& operator=(const HighResSchedulingSupport&); // = delete;
 
private:
    unsigned int _handle;
};
 
} // namespace system
} // namespace a_util
 
#endif // A_UTIL_UTIL_SYSTEM_SYSTEM_HEADER_INCLUDED