90 lines
1.9 KiB
C++
90 lines
1.9 KiB
C++
#include "File.h"
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#include "Exception.h"
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#include <sys/stat.h>
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#include <iostream>
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#include <sstream>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <unistd.h>
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namespace coreutils {
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File::File(coreutils::ZString fileName, int mode, int authority) {
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open(fileName, mode, authority);
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}
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void File::open(coreutils::ZString fileName, int mode, int authority) {
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this->fileName = fileName;
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struct stat status;
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stat(fileName.c_str(), &status);
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buffer = NULL;
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setBufferSize(status.st_size);
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fd = ::open(fileName.c_str(), mode, authority);
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if(fd < 0) {
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std::stringstream temp;
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temp << "Error opening file " << fileName << ".";
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throw Exception(temp.str(), __FILE__, __LINE__);
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}
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}
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File::~File() {
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close(fd);
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free(buffer);
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}
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void File::setBufferSize(size_t size) {
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buffer = (char *)realloc(buffer, size);
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this->size = size;
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}
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int File::read() {
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size = ::read(fd, buffer, size);
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setBufferSize(size);
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return size;
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}
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int File::readLine() {
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setBufferSize(4096);
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size = 0;
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int len = ::read(fd, buffer + size, 1);
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if(len == 0)
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mEof = true;
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while(!mEof && (*(buffer + size) != '\n')) {
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if(*(buffer + size) != '\r') {
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// setBufferSize(size);
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++size;
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}
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len = ::read(fd, buffer + size, 1);
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if(len == 0)
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mEof = true;
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}
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return size;
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}
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void File::write(std::string data) {
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::write(fd, data.c_str(), data.length());
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}
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void File::write(coreutils::ZString &data) {
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int len = ::write(fd, data.getData(), data.getLength());
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}
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std::string File::asString() {
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return std::string(buffer, size);
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}
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coreutils::ZString File::asZString() {
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return ZString(buffer, size);
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}
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bool File::eof() {
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return mEof;
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}
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}
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