misc_os_dependent.h

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// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the Andrey N. Sabelnikov nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER  BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
#ifdef _WIN32
#include <winsock2.h>
#endif
 
#ifdef WIN32
  #ifndef WIN32_LEAN_AND_MEAN 
  #define WIN32_LEAN_AND_MEAN
  #endif
 
  //#ifdef _WIN32_WINNT 
  //  #undef _WIN32_WINNT
  //  #define _WIN32_WINNT 0x0600
  //#endif
 
  
#include <windows.h>
#endif
 
#ifdef __MACH__
#include <mach/clock.h>
#include <mach/mach.h>
#endif
 
#include <iostream>
#include <boost/lexical_cast.hpp>
 
#pragma once 
namespace epee
{
namespace misc_utils
{
 
        inline uint64_t get_ns_count()
        {
#if defined(_MSC_VER)
                return ::GetTickCount64() * 1000000;
#elif defined(WIN32)
                static LARGE_INTEGER pcfreq = {0};
                LARGE_INTEGER ticks;
                if (!pcfreq.QuadPart)
                    QueryPerformanceFrequency(&pcfreq);
                QueryPerformanceCounter(&ticks);
                ticks.QuadPart *= 1000000000; /* we want nsec */
                return ticks.QuadPart / pcfreq.QuadPart;
#elif defined(__MACH__)
                clock_serv_t cclock;
                mach_timespec_t mts;
 
                host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock);
                clock_get_time(cclock, &mts);
                mach_port_deallocate(mach_task_self(), cclock);
 
                return ((uint64_t)mts.tv_sec * 1000000000) + (mts.tv_nsec);
#else
                struct timespec ts;
                if(clock_gettime(CLOCK_MONOTONIC, &ts) != 0) {
                        return 0;
                }
                return ((uint64_t)ts.tv_sec * 1000000000) + (ts.tv_nsec);
#endif
        }
 
        inline uint64_t get_tick_count()
        {
                return get_ns_count() / 1000000;
        }
 
 
        inline int call_sys_cmd(const std::string& cmd)
    {      
                std::cout << "# " << cmd << std::endl;
 
        FILE * fp ;
        //char tstCommand[] ="ls *";
        char path[1000] = {0};
#if !defined(__GNUC__) 
        fp = _popen(cmd.c_str(), "r");
#else
        fp = popen(cmd.c_str(), "r");
#endif
        while ( fgets( path, 1000, fp ) != NULL )
            std::cout << path;
 
#if !defined(__GNUC__) 
        _pclose(fp);
#else
        pclose(fp);
#endif
        return 0;
 
    }
 
 
    inline std::string get_thread_string_id()
    {
#if defined(_WIN32)
        return boost::lexical_cast<std::string>(GetCurrentThreadId());
#elif defined(__GNUC__)  
        return boost::lexical_cast<std::string>(pthread_self());
#endif
    }
 
    inline bool get_gmt_time(time_t t, struct tm &tm)
    {
#ifdef _WIN32
        return gmtime_s(&tm, &t);
#else
        return gmtime_r(&t, &tm);
#endif
    }
}
}