ref: cf453077a8567b09ce6baa7a6b11a6a4fe395db2
dir: /include/c9/fs.h/
typedef struct FS FS;
typedef struct FSstat FSstat;
typedef enum
{
FS_OREAD,
FS_OWRITE,
FS_ORDWR,
FS_OEXEC,
FS_OTRUNC = 0x10,
FS_ORCLOSE = 0x40,
FS_OEXCL = 0x1000,
FS_DIR = 0x80000000U, /* open/create: it's supposed to be a directory. */
}FSmode;
struct FSstat
{
uint64_t size; /* Size of the file (in bytes). */
char *name; /* Name of the file. */
char *uid; /* Owner of the file. */
char *gid; /* Group of the file. */
uint32_t mode; /* Permissions. See C9st* and C9perm. */
uint64_t mtime; /* Last modification time. Nanoseconds since epoch. */
};
struct FSaux;
struct FS
{
/* Callback for error messages. */
void (*error)(FS *fs, const char *fmt, ...) __attribute__((nonnull(1), format(printf, 2, 3)));
/* Do not set these. */
int (*chdir)(FS *fs, const char *path) __attribute__((nonnull(1, 2)));
int (*open)(FS *fs, const char *name, FSmode mode) __attribute__((nonnull(1, 2)));
int (*create)(FS *fs, const char *path, int perm) __attribute__((nonnull(1, 2)));
int64_t (*read)(FS *fs, int fd, void *buf, uint64_t count) __attribute__((nonnull(1, 3)));
int64_t (*readdir)(FS *fs, int fd, FSstat *st, int nst);
int64_t (*write)(FS *fs, int fd, const void *buf, uint64_t count) __attribute__((nonnull(1, 3)));
int64_t (*seek)(FS *fs, int fd, int64_t offset, int whence) __attribute__((nonnull(1)));
int (*stat)(FS *fs, const char *path, FSstat *st) __attribute__((nonnull(1, 2, 3)));
int (*fstat)(FS *fs, int fd, FSstat *st) __attribute__((nonnull(1, 3)));
int (*close)(FS *fs, int fd) __attribute__((nonnull(1)));
int (*remove)(FS *fs, const char *name) __attribute__((nonnull(1, 2)));
int (*rename)(FS *fs, const char *oldpath, const char *newpath) __attribute__((nonnull(1, 2, 3)));
struct FSaux *aux;
};