streams.cpp

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/*****************************************************************************
** Includes
*****************************************************************************/
 
#include <iostream>
#include <ecl/threads/priority.hpp>
#include <ecl/time/stopwatch.hpp>
#include <ecl/streams.hpp>
#include <ecl/formatters.hpp>
 
/*****************************************************************************
** Using
*****************************************************************************/
 
using ecl::OConsoleStream;
using ecl::StopWatch;
using ecl::TimeStamp;
using ecl::Format;
using ecl::StandardException;
 
/*****************************************************************************
** Main
*****************************************************************************/
 
int main() {
        try {
                ecl::set_priority(ecl::RealTimePriority4);
        } catch ( StandardException &e ) {
                // dont worry about it.
        }
 
    StopWatch stopwatch;
        TimeStamp times[6];
        unsigned int lines_to_write = 1;
    float f = 33.54235235;
    Format<double> format; format.precision(2); format.width(5);
 
    std::cout << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << "                      Printf" << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << std::endl;
 
    for ( unsigned int i = 0; i < lines_to_write; ++i ) { // Avoid speedups from caching affecting times.
        printf("Heya Dude\n");
    }
    stopwatch.restart();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) {
        printf("Heya Dude\n");
    }
    times[0] = stopwatch.split();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) { // Avoid speedups from caching affecting times.
        printf("%4.2f \n",f);
    }
    stopwatch.restart();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) {
        printf("%4.2f \n",f);
    }
    times[3] = stopwatch.split();
 
    std::cout << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << "                      Cout" << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << std::endl;
 
    for ( unsigned int i = 0; i < lines_to_write; ++i ) { // Avoid speedups from caching affecting times.
        std::cout << "Heya Dude\n";
    }
    std::cout.flush();
    stopwatch.restart();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) {
        std::cout << "Heya Dude\n";
    }
    std::cout.flush();
    times[1] = stopwatch.split();
 
    std::cout.precision(4);
    for ( unsigned int i = 0; i < lines_to_write; ++i ) { // Avoid speedups from caching affecting times.
        std::cout << f << " \n";
    }
    std::cout.flush();
    stopwatch.restart();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) {
        std::cout << f << " \n";
    }
    std::cout.flush();
    times[4] = stopwatch.split();
 
    std::cout << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << "                      Ostream" << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << std::endl;
 
    OConsoleStream ostream;
    for ( unsigned int i = 0; i < lines_to_write; ++i ) { // Avoid speedups from caching affecting times.
        ostream << "Heya Dude\n";
    }
    ostream.flush();
    stopwatch.restart();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) {
        ostream << "Heya Dude\n";
    }
    ostream.flush();
    times[2] = stopwatch.split();
 
    for ( unsigned int i = 0; i < lines_to_write; ++i ) { // Avoid speedups from caching affecting times.
        ostream << format(f) << " \n";
    }
    ostream.flush();
    stopwatch.restart();
    for ( unsigned int i = 0; i < lines_to_write; ++i ) {
        ostream << format(f) << " \n";
    }
    ostream.flush();
    times[5] = stopwatch.split();
 
    std::cout << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << "                      Times" << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << std::endl;
 
    std::cout << "Writing Char Strings:" << std::endl;
    std::cout << "           printf : " << times[0].nsec() << " ns" << std::endl;
    std::cout << "             cout : " << times[1].nsec() << " ns" << std::endl;
    std::cout << "   OConsoleStream : " << times[2].nsec() << " ns" << std::endl;
    std::cout << "Streaming Floats:" << std::endl;
    std::cout << "           printf : " << times[3].nsec() << " ns" << std::endl;
    std::cout << "             cout : " << times[4].nsec() << " ns" << std::endl;
    std::cout << "   OConsoleStream : " << times[5].nsec() << " ns" << std::endl;
 
    std::cout << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << "                      Passed" << std::endl;
    std::cout << "***********************************************************" << std::endl;
    std::cout << std::endl;
 
        return 0;
}