format.h

#ifndef LIBCLOD_FORMAT_H
#define LIBCLOD_FORMAT_H
 
#include <clod/region_format.h>
#include <../../include/clod/data_structures/table.h>
#include "bitarray.h"
#include <stdint.h>
 
#define LIBCLOD_MAGIC \
    "\n\n"\
    "libclod extended region file format version 1.\n"\
    "See github.com/stewi1014/clod for format details.\n"\
    "\n\n"
 
constexpr size_t MAGIC_LEN = sizeof(LIBCLOD_MAGIC);
constexpr size_t HEADER_SIZE = 20480u;
 
struct clod_rfmt {
    struct clod_rfmt_opts opts;
 
    uint8_t *data;
    size_t data_size;
 
#ifndef NDEBUG
    bool file_locked;
    bitarray(1024) held_locks;
    bitarray(1024) observing_locks;
#endif
};
 
enum clod_rfmt_result chunk_lock_acquire(struct clod_rfmt *rfmt, unsigned chunk_index);
enum clod_rfmt_result chunk_lock_refresh(struct clod_rfmt *rfmt, unsigned chunk_index);
enum clod_rfmt_result chunk_lock_release(struct clod_rfmt *rfmt, unsigned chunk_index);
 
enum clod_rfmt_result global_lock_acquire(struct clod_rfmt *rfmt);
enum clod_rfmt_result global_lock_refresh(struct clod_rfmt *rfmt);
enum clod_rfmt_result global_lock_release(struct clod_rfmt *rfmt);
 
enum clod_rfmt_result resize_lock_acquire(struct clod_rfmt *rfmt, size_t *old_size, size_t grow_size);
enum clod_rfmt_result resize_lock_release(struct clod_rfmt *rfmt);
 
#endif