35 lines
720 B
C
35 lines
720 B
C
|
#ifndef KIMODEM_ARENA_H
|
||
|
|
#define KIMODEM_ARENA_H
|
||
|
|
|
||
|
|
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <cstddef>
|
||
|
|
#include <cstdint>
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
uint8_t *store;
|
||
|
|
size_t size;
|
||
|
|
int fd;
|
||
|
|
uint8_t type;
|
||
|
|
} Arena;
|
||
|
|
|
||
|
|
|
||
|
|
int new_arena(Arena &, uint8_t *, size_t);
|
||
|
|
int alloc_new_arena(Arena &, size_t);
|
||
|
|
#if defined(__linux__)
|
||
|
|
int mmap_arena(Arena &, int); /* arena will own fd */
|
||
|
|
int create_arena(Arena &arena, const char *path, size_t size, mode_t mode);
|
||
|
|
int open_arena(Arena &, const char *, size_t);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void arena_clear(Arena &);
|
||
|
|
int arena_destroy(Arena &); /* dispose of any memory used by arena */
|
||
|
|
|
||
|
|
/* DANGER: if arena is file backed (mmap or open), DO NOT WRITE TO THE
|
||
|
|
* BACKING FILE! */
|
||
|
|
int write_arena(const char *);
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|