gint/src/fs/fygue/fygue.h
2025-04-03 14:22:02 +02:00

105 lines
2.1 KiB
C

#ifndef FS_FYGUE_H
#define FS_FYGUE_H 1
#ifdef __cplusplus
extern "C" {
#endif
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <sys/stat.h>
#include <gint/fs.h>
//---
// Public global
//---
/* File descriptor type */
extern const fs_descriptor_type_t fygue_descriptor_type;
/* Directory descriptor type */
extern const fs_descriptor_type_t fygue_dir_descriptor_type;
//---
// Public (low-level) API
//---
/* fygue_open() - open file or directory */
extern int fygue_open(char const *path, int flags, mode_t mode);
/* fygue_stat() - get file or directory information */
extern int fygue_stat(
char const * restrict path,
struct stat * restrict statbuf
);
/* fygue_syncfs() - request filesystem re-synchronisation */
extern int fygue_syncfs(void *desc);
//---
// Internals
//---
#include <gint/hardware.h>
#include <errno.h>
#define ENOTSUP_IF_NOT_FYGUE(rc) \
if( \
(gint[HWFS] != HWFS_FUGUE) || \
(flags & O_WRONLY) || \
(flags & O_RDWR) \
) { \
errno = ENOTSUP; \
return (rc); \
}
#include "fat/fat.h"
/* fygue_fsinfo: internal fygue FS information */
struct fygue_fsinfo
{
struct fygue_fat fat;
bool dirty;
};
/* fygue_resolve: internals file information */
struct fygue_resolve {
enum {
FYGUE_FILE_TYPE_FILE,
FYGUE_FILE_TYPE_DIR,
} type;
union {
struct {
off_t cursor;
struct fygue_fat_file fat;
} file;
struct {
struct fygue_fat_dir fat;
} dir;
};
};
/* fygue_descriptor: internal file descriptor information */
struct fygue_descriptor
{
struct fygue_resolve resolve;
char const *path;
int flags;
bool dirty;
};
/* fygue_mount(): mount and return the filesystem info */
extern int fygue_mount(struct fygue_fsinfo **fsinfo, bool refresh);
/* fygue_resolve() - try to resolve path */
extern int fygue_resolve(
char const * const path,
struct fygue_resolve *resolve
);
#ifdef __cplusplus
}
#endif
#endif /* FS_FYGUE_H */