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system.cpp
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system.cpp
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#include <string>
#include "r-tech1/system.h"
#include <stdint.h>
#include <stdio.h>
#include <fstream>
#ifdef USE_SDL
#include <SDL/SDL.h>
#endif
#ifndef WINDOWS
#include <unistd.h>
#include <sys/stat.h>
#include <sys/time.h>
#endif
#ifndef WINDOWS
/* devkitpro doesn't have an implementation of access() yet. if it gets one this function
* can be removed.
*/
#if defined(WII) || defined(PS3)
int access(const char * path, int mode){
struct stat information;
int ok = stat(path, &information);
// printf("stat of '%s' is %d\n", path.c_str(), ok);
if (ok == 0){
if (mode == R_OK){
if (((information.st_mode & S_IRUSR) == S_IRUSR) ||
((information.st_mode & S_IRGRP) == S_IRGRP) ||
((information.st_mode & S_IROTH) == S_IROTH)){
return 0;
} else {
/* handle other modes if they become useful to us */
return -1;
}
} else {
return -1;
}
} else {
// perror("stat");
return -1;
}
}
#endif
static bool isReadable(const std::string & path){
return access(path.c_str(), R_OK) == 0;
}
bool System::isDirectory(const std::string & path){
struct stat info;
if (stat(path.c_str(), &info) == 0){
if (S_ISDIR(info.st_mode) == 1){
return true;
} else {
return false;
}
}
return false;
}
bool System::readableFile(const std::string & path){
return isReadable(path) && ! isDirectory(path);
}
bool System::readable(const std::string & path){
return isReadable(path);
}
void System::makeDirectory(const std::string & path){
mkdir(path.c_str(), 0777);
}
/*
uint64_t System::currentMicroseconds(){
struct timeval hold;
gettimeofday(&hold, NULL);
return hold.tv_sec * 1000 * 1000 + hold.tv_usec;
}
*/
uint64_t System::currentMilliseconds(){
#ifdef USE_SDL
return SDL_GetTicks();
#else
struct timeval hold;
gettimeofday(&hold, NULL);
return (hold.tv_sec * 1000 * 1000 + hold.tv_usec) / 1000;
#endif
}
uint64_t System::getModificationTime(const std::string & path){
struct stat data;
if (stat(path.c_str(), &data) == 0){
return data.st_mtime;
}
return 0;
}
static void * start_memory = 0;
unsigned long System::memoryUsage(){
void * here = sbrk(0);
/* hopefully the heap is growing up */
return (char*) here - (char*) start_memory;
}
void System::startMemoryUsage(){
start_memory = sbrk(0);
}
#endif
void System::makeAllDirectory(const std::string & path){
size_t last = path.find('/');
while (last != std::string::npos){
std::string sofar = path.substr(0, last);
if (sofar != ""){
makeDirectory(sofar);
}
last = path.find('/', last + 1);
}
makeDirectory(path);
}
uint64_t System::currentSeconds(){
return currentMilliseconds() / 1000;
}

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system.cpp (2 KB)

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