[General] Move Utils from server to components
Rewrite CRC32 functions to the Boost equivalentpull/183/merge
Koncord
8 years ago
parent
9cffc1f661
commit
c353e18645
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//
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// Created by koncord on 24.01.16.
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//
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#include "Utils.hpp"
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#include <cstdio>
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#include <cstring>
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#include <ctime>
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#include <cmath>
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#include <memory>
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#include <boost/crc.hpp>
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#include <boost/filesystem/fstream.hpp>
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using namespace std;
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#ifdef _WIN32
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int setenv(const char *name, const char *value, int overwrite)
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{
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printf("%s: %s\n", name, value);
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return _putenv_s(name, value);
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}
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#endif
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std::string Utils::convertPath(std::string str)
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{
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#if defined(_WIN32)
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#define _SEP_ '\\'
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#elif defined(__APPLE__)
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#define _SEP_ ':'
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#endif
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#if defined(_WIN32) || defined(__APPLE__)
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for (auto &ch : str)
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if (ch == '/')
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ch = _SEP_;
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#endif //defined(_WIN32) || defined(__APPLE__)
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return str;
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#undef _SEP_
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}
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void Utils::timestamp()
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{
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time_t ltime;
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ltime = time(0);
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char t[32];
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snprintf(t, sizeof(t), "[%s", asctime(localtime(<ime)));
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char* newline = strchr(t, '\n');
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*newline = ']';
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strcat(t, " ");
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printf("%s", t);
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}
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// http://stackoverflow.com/questions/1637587/c-libcurl-console-progress-bar
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int Utils::progress_func(double TotalToDownload, double NowDownloaded)
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{
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// how wide you want the progress meter to be
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int totaldotz=40;
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double fractiondownloaded = NowDownloaded / TotalToDownload;
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// part of the progressmeter that's already "full"
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int dotz = round(fractiondownloaded * totaldotz);
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// create the "meter"
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int ii=0;
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printf("%3.0f%% [",fractiondownloaded*100);
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// part that's full already
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for ( ; ii < dotz;ii++) {
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printf("=");
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}
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// remaining part (spaces)
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for ( ; ii < totaldotz;ii++) {
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printf(" ");
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}
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// and back to line begin - do not forget the fflush to avoid output buffering problems!
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printf("]\r");
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fflush(stdout);
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return 1;
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}
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bool Utils::DoubleCompare(double a, double b, double epsilon)
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{
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return fabs(a - b) < epsilon;
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}
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string Utils::str_replace(const string& source, const char* find, const char* replace)
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{
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unsigned int find_len = strlen(find);
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unsigned int replace_len = strlen(replace);
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size_t pos = 0;
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string dest = source;
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while ((pos = dest.find(find, pos)) != string::npos)
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{
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dest.replace(pos, find_len, replace);
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pos += replace_len;
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}
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return dest;
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}
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string& Utils::RemoveExtension(string& file)
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{
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size_t pos = file.find_last_of('.');
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if (pos)
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file = file.substr(0, pos);
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return file;
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}
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long int Utils::FileLength(const char* file)
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{
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FILE* _file = fopen(file, "rb");
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if (!_file)
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return 0;
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fseek(_file, 0, SEEK_END);
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long int size = ftell(_file);
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fclose(_file);
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return size;
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}
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unsigned int ::Utils::crc32checksum(const std::string &file)
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{
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boost::crc_32_type crc32;
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boost::filesystem::ifstream ifs(file, std::ios_base::binary);
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if (ifs)
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{
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do
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{
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char buffer[1024];
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ifs.read(buffer, 1024);
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crc32.process_bytes( buffer, ifs.gcount() );
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} while (ifs);
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}
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return crc32.checksum();
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}
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@ -0,0 +1,32 @@
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//
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// Created by koncord on 24.01.16.
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//
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#ifndef UTILS_HPP
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#define UTILS_HPP
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#include <string>
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#ifdef _WIN32
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int setenv(const char *name, const char *value, int overwrite);
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#endif
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namespace Utils
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{
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std::string convertPath(std::string str);
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void timestamp();
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int progress_func(double TotalToDownload, double NowDownloaded);
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bool DoubleCompare(double a, double b, double epsilon);
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std::string str_replace(const std::string &source, const char *find, const char *replace);
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std::string &RemoveExtension(std::string &file);
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long int FileLength(const char *file);
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unsigned int crc32checksum(const std::string &file);
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}
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#endif //UTILS_HPP
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