mirror of
https://github.com/TomHarte/CLK.git
synced 2024-12-27 01:31:42 +00:00
75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
//
|
|
// FileHolder.hpp
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 21/11/2016.
|
|
// Copyright © 2016 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#ifndef FileHolder_hpp
|
|
#define FileHolder_hpp
|
|
|
|
#include <sys/stat.h>
|
|
#include <cstdio>
|
|
#include <cstdint>
|
|
|
|
namespace Storage {
|
|
|
|
class FileHolder {
|
|
public:
|
|
enum {
|
|
ErrorCantOpen = -1
|
|
};
|
|
|
|
virtual ~FileHolder();
|
|
|
|
protected:
|
|
FileHolder(const char *file_name);
|
|
|
|
/*!
|
|
Reads @c length bytes from the file and compares them to the first
|
|
@c length bytes of @c signature. If @c length is 0, it is computed
|
|
as the length of @c signature up to and including the terminating null.
|
|
|
|
@returns @c true if the bytes read match the signature; @c false otherwise.
|
|
*/
|
|
bool check_signature(const char *signature, size_t length);
|
|
|
|
/*!
|
|
Performs @c fgetc four times on @c file_, casting each result to a @c uint32_t
|
|
and returning the four assembled in little endian order.
|
|
*/
|
|
uint32_t fgetc32le();
|
|
|
|
/*!
|
|
Performs @c fgetc three times on @c file_, casting each result to a @c uint32_t
|
|
and returning the three assembled in little endian order.
|
|
*/
|
|
uint32_t fgetc24le();
|
|
|
|
/*!
|
|
Performs @c fgetc two times on @c file_, casting each result to a @c uint32_t
|
|
and returning the two assembled in little endian order.
|
|
*/
|
|
uint16_t fgetc16le();
|
|
|
|
/*!
|
|
Performs @c fgetc four times on @c file_, casting each result to a @c uint32_t
|
|
and returning the four assembled in big endian order.
|
|
*/
|
|
uint32_t fgetc32be();
|
|
|
|
/*!
|
|
Performs @c fgetc two times on @c file_, casting each result to a @c uint32_t
|
|
and returning the two assembled in big endian order.
|
|
*/
|
|
uint16_t fgetc16be();
|
|
|
|
FILE *file_;
|
|
struct stat file_stats_;
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* FileHolder_hpp */
|