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/*
* Seven Kingdoms: Ancient Adversaries
*
* Copyright 2010 Unavowed <unavowed@vexillium.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef FILE_READER_H
#define FILE_READER_H
#include <file_input_stream.h>
class FileReader
{
protected:
FileInputStream is;
File::FileType original_type;
File *file;
bool ok;
public:
FileReader();
~FileReader();
bool init(File *file);
void deinit();
bool good() const;
bool skip(size_t len);
bool check_record_size(uint16_t expected_size);
template <typename FileT, typename MemT>
bool read(MemT *v)
{
FileT val;
if (!this->ok)
return false;
if (read_le(&this->is, &val))
*v = val;
else
this->ok = false;
return this->ok;
}
template <typename T>
bool read(T **v)
{
uint32_t p;
if (!this->read<uint32_t>(&p))
return false;
if (p != 0)
*v = reinterpret_cast<T *>(uintptr_t(0xdeadbeefUL));
else
*v = NULL;
return true;
}
template <typename FileT, typename MemT>
bool read_array(MemT *array, size_t len)
{
for (size_t n = 0; n < len; n++)
{
if (!this->read<FileT>(&array[n]))
break;
}
return this->ok;
}
};
/* vim: set ts=8 sw=3: */
#endif
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