/usr/include/ui-utilcpp/Time.hpp is in libui-utilcpp-dev 1.8.5-1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @file
*/
#ifndef UI_UTIL_TIME_HPP
#define UI_UTIL_TIME_HPP
// STDC++
#include <string>
// C++ libraries
#include <ui-utilcpp/Exception.hpp>
namespace UI {
namespace Util {
/** @brief Get "sec"-part from gettimeofday(2). */
long int getTimeValSec();
/** @brief Get "usec"-part from gettimeofday(2). */
long int getTimeValUSec();
/** @brief No Signal Sleep: Using POSIX nanosleep(2).
*
* @see nanosleep(2), POSIX.1.
*
* @return Return values of POSIX nanosleep(2) call (0 for no error).
*
*/
unsigned int nanosleep(unsigned int seconds, long int nanoseconds);
/** @brief No Signal Seconds Sleep: Using POSIX nanosleep(2).
*
* You may use this as drop-in replacement for sleep(3) if you do
* not want any signals to be raised.
*
* @see nanosleep.
*/
unsigned int nssleep(unsigned int seconds);
/** @brief No Signal Nano Sleep.
*
* @see nanosleep.
*/
unsigned int nsnsleep(long int nanoseconds);
/** @brief RealTimeStamp class encapsulating "gettimeofday".
*
* @see time(2) (POSIX), gettimeofday(2) (BSD).
*/
class RealTimeStamp
{
public:
/** @brief Error codes for exceptions. */
enum ErrorCode
{
NegativeStamp_=1
};
/** @brief This classes exceptions. */
typedef CodeException<ErrorCode> Exception;
/** @brief Standard constructor.
*
* @param sec Seconds since Epoch.
* @param usec Micro (10^-6) seconds since Epoch+sec.
* @note Values will be "normalised" (make microseconds < 10^6). Altogether, it must not
* be a negative date (before Epoch).
*/
RealTimeStamp(long int const & sec=0, long int const & usec=0);
/** @brief Set time stamp manually.
*
* @param sec Seconds since Epoch.
* @param usec Micro (10^-6) seconds since Epoch+sec.
* @returns Reference to itself
*/
RealTimeStamp & set(long int const & sec, long int const & usec);
/** @brief Set this stamp to maximum. */
RealTimeStamp & setMax();
/** @brief Set this stamp to minimum (Epoch) */
RealTimeStamp & setMin();
/** @brief Set time stamp from current time.
*
* @returns Reference to itself
*/
RealTimeStamp & stamp();
/** @brief Get seconds since Epoch. */
long int getSec() const;
/** @brief Get micro seconds since Epoch+sec. */
long int getUSec() const;
/** @brief Get seconds (since Epoch) as real number (including micro seconds). */
long double getSeconds() const;
/** @brief Standard == operator. */
bool operator == (RealTimeStamp const & rt) const;
/** @brief Standard < operator. */
bool operator < (RealTimeStamp const & rt) const;
/** @brief Standard <= operator. */
bool operator <= (RealTimeStamp const & rt) const;
/** @brief Standard += operator. */
RealTimeStamp & operator += (RealTimeStamp const & rt);
/** @brief Standard + operator. */
RealTimeStamp operator + (RealTimeStamp const & rt) const;
/** @brief Standard -= operator. */
RealTimeStamp & operator -= (RealTimeStamp const & rt);
/** @brief Standard - operator. */
RealTimeStamp operator - (RealTimeStamp const & rt) const;
private:
long int sec_;
long int usec_;
static long int const tenExpSix_;
void normalize();
};
/** @brief Streaming operator for RealTimeStamp. */
std::ostream & operator << (std::ostream & os, RealTimeStamp const & rt);
/** @brief Log time used for a scope.
*
* - Usage as-is: Automatic logging to out stream (nothing if NULL).
* - Usage custom logging: Derive class, add custom logging to derived class' destructor, construct w/ out=0.
*/
class ScopeRealTime: private RealTimeStamp
{
private:
std::ostream * const out_;
public:
ScopeRealTime(std::ostream * const out);
~ScopeRealTime();
RealTimeStamp get() const;
};
}}
#endif
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