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openmw-tes3mp/components/openmw-mp/Utils.cpp

238 lines
5.3 KiB
C++

#include "Utils.hpp"
#include <cstdio>
#include <cstring>
#include <ctime>
#include <cmath>
#include <memory>
#include <iostream>
#include <sstream>
#include <boost/crc.hpp>
#include <boost/filesystem/fstream.hpp>
#include <iomanip>
using namespace std;
#ifdef _WIN32
int setenv(const char *name, const char *value, int overwrite)
{
printf("%s: %s\n", name, value);
return _putenv_s(name, value);
}
#endif
std::string Utils::convertPath(std::string str)
{
#if defined(_WIN32)
#define _SEP_ '\\'
#elif defined(__APPLE__)
#define _SEP_ ':'
#endif
#if defined(_WIN32) || defined(__APPLE__)
replace(str.begin(), str.end(), '/', _SEP_);
#endif //defined(_WIN32) || defined(__APPLE__)
return str;
#undef _SEP_
}
bool Utils::doesFileHaveChecksum(std::string filePath, unsigned int requiredChecksum)
{
unsigned int fileChecksum = crc32Checksum(filePath);
if (fileChecksum == requiredChecksum)
return true;
return false;
}
void Utils::timestamp()
{
time_t ltime;
ltime = time(0);
char t[32];
snprintf(t, sizeof(t), "[%s", asctime(localtime(&ltime)));
char* newline = strchr(t, '\n');
*newline = ']';
strcat(t, " ");
printf("%s", t);
}
// Based on http://stackoverflow.com/questions/1637587/c-libcurl-console-progress-bar
int Utils::progressFunc(double TotalToDownload, double NowDownloaded)
{
// how wide you want the progress meter to be
int totaldotz=40;
double fractiondownloaded = NowDownloaded / TotalToDownload;
// part of the progressmeter that's already "full"
int dotz = round(fractiondownloaded * totaldotz);
// create the "meter"
int ii=0;
printf("%3.0f%% [",fractiondownloaded*100);
// part that's full already
for ( ; ii < dotz;ii++) {
printf("=");
}
// remaining part (spaces)
for ( ; ii < totaldotz;ii++) {
printf(" ");
}
// and back to line begin - do not forget the fflush to avoid output buffering problems!
printf("]\r");
fflush(stdout);
return 1;
}
bool Utils::compareDoubles(double a, double b, double epsilon)
{
return fabs(a - b) < epsilon;
}
bool Utils::compareFloats(float a, float b, float epsilon)
{
return fabs(a - b) < epsilon;
}
// Based on https://stackoverflow.com/a/1489873
unsigned int Utils::getNumberOfDigits(int integer)
{
int digits = 0;
if (integer < 0) digits = 1;
while (integer) {
integer /= 10;
digits++;
}
return digits;
}
std::string Utils::toString(int num)
{
std::ostringstream stream;
stream << num;
return stream.str();
}
std::string Utils::replaceString(const string& source, const char* find, const char* replace)
{
unsigned int find_len = strlen(find);
unsigned int replace_len = strlen(replace);
size_t pos = 0;
string dest = source;
while ((pos = dest.find(find, pos)) != string::npos)
{
dest.replace(pos, find_len, replace);
pos += replace_len;
}
return dest;
}
string& Utils::removeExtension(string& file)
{
size_t pos = file.find_last_of('.');
if (pos)
file = file.substr(0, pos);
return file;
}
long int Utils::getFileLength(const char* file)
{
FILE* _file = fopen(file, "rb");
if (!_file)
return 0;
fseek(_file, 0, SEEK_END);
long int size = ftell(_file);
fclose(_file);
return size;
}
unsigned int ::Utils::crc32Checksum(const std::string &file)
{
boost::crc_32_type crc32;
boost::filesystem::ifstream ifs(file, std::ios_base::binary);
if (ifs)
{
do
{
char buffer[1024];
ifs.read(buffer, 1024);
crc32.process_bytes( buffer, ifs.gcount() );
} while (ifs);
}
return crc32.checksum();
}
std::string Utils::getOperatingSystemType()
{
#if defined(_WIN32)
return "Windows";
#elif defined(__linux)
return "Linux";
#elif defined(__APPLE__)
return "OS X";
#else
return "Unknown OS";
#endif
}
std::string Utils::getArchitectureType()
{
#if defined(__x86_64__) || defined(_M_X64)
return "64-bit";
#elif defined(__i386__) || defined(_M_I86) || defined(_M_IX86)
return "32-bit";
#elif defined(__ARM_ARCH)
std::string architectureType = "ARMv" + __ARM_ARCH;
#ifdef __aarch64__
architectureType = architectureType + " 64-bit";
#else
architectureType = architectureType + " 32-bit";
#endif
return architectureType;
#else
return "Unknown architecture";
#endif
}
void Utils::printVersion(std::string appName, std::string version, std::string commitHash, int protocol)
{
cout << appName << " " << version;
cout << " (" << getOperatingSystemType() << " " << getArchitectureType() << ")" << endl;
cout << "Protocol version: " << protocol << endl;
cout << "Oldest compatible commit hash: " << commitHash.substr(0, 10) << endl;
cout << "------------------------------------------------------------" << endl;
}
void Utils::printWithWidth(ostringstream &sstr, string str, size_t width)
{
sstr << left << setw(width) << setfill(' ') << str;
}
string Utils::intToHexStr(unsigned val)
{
ostringstream sstr;
sstr << "0x" << setfill('0') << setw(8) << uppercase << hex << val;
return sstr.str();
}
unsigned int Utils::hexStrToInt(std::string hexString)
{
unsigned int intValue;
sscanf(hexString.c_str(), "%x", &intValue);
return intValue;
}