117 lines
3.1 KiB
C++
117 lines
3.1 KiB
C++
#include "kutilities.h"
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#include <iomanip>
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#include <string>
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#include <sstream>
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#include <chrono>
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Kutilities::Kutilities() {}
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// 函数用于将内存块转换为十六进制字符串
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std::string Kutilities::printHex(const void* data, size_t size)
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{
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std::ostringstream oss;
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std::ostringstream oss2;
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std::ostringstream ossrow;
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// 每行输出的字节数
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const size_t lineSize = 16;
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const unsigned char* p = static_cast<const unsigned char*>(data);
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int ic = 0;
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int row = 0;
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ossrow << std::setw(8) << std::setfill('0') << std::hex << row++ << "h : ";
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oss << ossrow.str().c_str();
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for( size_t i = 0; i < size; ++i )
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{
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ic++;
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// 每个字节之间用空格分隔
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oss << std::setw(2) << std::setfill('0') << std::hex << std::uppercase << static_cast<int>(p[i]);
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char ch = (isprint(p[i]) != 0) ? p[i] : '.';
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oss2 << ch;
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//每lineSize个字节换行
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if( (i + 1) % lineSize == 0 )
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{
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ossrow.clear();
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ossrow.str("");
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oss << " [" << oss2.str().c_str() << "]" << std::endl;
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oss2.clear();
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oss2.str("");
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ossrow << std::setw(8) << std::setfill('0') << std::hex << row++ << "h : ";
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oss << ossrow.str().c_str();
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ic = 0;
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}
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else if( i == size - 1 )
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{
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if( (i + 1) % lineSize != 0 )
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{
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if( i % 2 != 0 )
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{
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for( size_t j = 0; j < (lineSize - ic); j++ )
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{
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oss << " --";
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}
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}
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else
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{
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for( size_t j = 0; j < (lineSize - ic); j++ )
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{
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oss << " --";
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}
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}
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}
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oss << " [" << oss2.str().c_str();
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if( (i + 1) % lineSize != 0 )
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{
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for( size_t j = 0; j < (lineSize - ic); j++ )
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{
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oss << " ";
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}
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}
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oss << "]" << std::endl;
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oss2.clear();
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oss2.str("");
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ic = 0;
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}
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#if 0
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else if( (i + 1) % 8 == 0 )
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{
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oss << " ";
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oss2 << " ";
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}
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#endif
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else
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{
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oss << " ";
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}
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}
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return oss.str();
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}
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std::string Kutilities::get_current_timestamp()
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{
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auto now = std::chrono::system_clock::now();
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//通过不同精度获取相差的毫秒数
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uint64_t dis_millseconds = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()).count()
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- std::chrono::duration_cast<std::chrono::seconds>(now.time_since_epoch()).count() * 1000;
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time_t tt = std::chrono::system_clock::to_time_t(now);
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auto time_tm = localtime(&tt);
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char strTime[25] = { 0 };
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sprintf(strTime, "%d-%02d-%02d %02d:%02d:%02d.%03d", time_tm->tm_year + 1900,
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time_tm->tm_mon + 1, time_tm->tm_mday, time_tm->tm_hour,
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time_tm->tm_min, time_tm->tm_sec, (int)dis_millseconds);
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return std::string(strTime);
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}
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