Es++ Class: CharFileReader
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Source code
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* CharFileReader.h
*
*****************************************************************************/
#pragma once
#include <es++/Object.h>
#include <es++/File.h>
#include <sys/io.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
namespace Es {
class CharFileReader :public Object {
private:
FILE* fp;
char* data;
size_t size;
public:
CharFileReader(const char* filename, bool nullTerminated=true)
:fp(NULL),
data(NULL),
size(0)
{
File file(filename);
if (file.exists() == false) {
throw Es::IException("File not found: %s.", filename);
} else {
fp = fopen(filename, "r");
if (fp == NULL) {
throw Es::IException("Failed to open a file (%s)", filename);
}
}
size = file.getFileSize();
if (nullTerminated) {
data = new char[size+1];
} else {
data = new char[size];
}
memset(data, 0, size);
size_t remain = size;
char* ptr = data;
while (remain > 0) {
size_t len = fread(ptr, sizeof(char), remain, fp);
remain -= len;
ptr += len;
}
if (nullTerminated) {
data[size] = ZERO;
}
fclose(fp);
fp = NULL;
}
public:
~CharFileReader()
{
delete[] data;
data = NULL;
}
public:
const char* getData() const
{
return data;
}
const size_t getDataSize() const
{
return size;
}
};
}
Last modified: 27 July 2017
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