xml-copy-editor-code/src/binaryfile.cpp

#include "binaryfile.h"
#include <stdexcept>

BinaryFile::BinaryFile(const char *fname) : m_data(0), m_dataLen(0)
{
  FILE *pFile;
  size_t lSize;
  char *buffer;
  size_t result;

  pFile = fopen(fname, "rb");
  if (pFile == NULL) { throw; }

  // obtain file size
  fseek(pFile , 0 , SEEK_END);
  lSize = ftell(pFile);
  rewind(pFile);

  // allocate memory to contain the whole file:

  //buffer = new char[lSize]; // for some reason this is much slower than malloc
  buffer = (char*) malloc(sizeof(char)*lSize);
  if (buffer == NULL) { throw; }

  // copy the file into the buffer:
  result = fread(buffer, 1, lSize, pFile);
  if (result != lSize)
  {
    if (!feof(pFile))
      throw;
  }

  /* the whole file is now loaded in the memory buffer. */

  // terminate
  fclose(pFile);

  m_data = buffer;
  m_dataLen = lSize;
}

BinaryFile::~BinaryFile()
{
  //delete[] m_data;
  free(m_data);
}

const char *BinaryFile::getData()
{
  return (const char *)m_data;
}

size_t BinaryFile::getDataLen()
{
  return m_dataLen;
}