terom@7: #ifndef DIRBUF_H
terom@7: #define DIRBUF_H
terom@7: 
terom@7: /*
terom@7:  * Simple dirent building
terom@7:  */
terom@7: 
terom@7: #include "evfuse.h"
terom@7: 
terom@7: /*
terom@7:  * Holds the dir entries
terom@7:  */ 
terom@7: struct dirbuf {
terom@7:     char *buf;
terom@7:     size_t len;
terom@27:     off_t off, req_off;
terom@7: };
terom@7: 
terom@26: // maximum length for a dirbuf name, including NUL byte
terom@26: #define DIRBUF_NAME_MAX 256
terom@26: 
terom@26: /*
terom@27:  * Initialize a dirbuf for a request. The dirbuf will be filled with at most req_size bytes of dir entries.
terom@27:  *
terom@27:  *  req_size    - how many bytes of dirbuf data we want, at most 
terom@27:  *  req_off     - the offset of the first dirent to include
terom@27:  */
terom@27: int dirbuf_init (struct dirbuf *buf, size_t req_size, off_t req_off);
terom@27: 
terom@27: /*
terom@26:  * Estimate how many dir entries will, at most, fit into a difbuf of the given size, based on a minimum filename size.
terom@26:  */
terom@27: size_t dirbuf_estimate (struct dirbuf *buf, size_t min_namelen);
terom@7: 
terom@7: /*
terom@7:  * Add an dir entry to the dirbuf. The dirbuf should not be full.
terom@7:  *
terom@7:  * Offsets are followed:
terom@7:  *  ent_off     - the offset of this dirent
terom@7:  *  next_off    - the offset of the next dirent
terom@7:  *
terom@7:  * Only the S_IFMT bits of ent_mode are relevant.
terom@7:  *
terom@7:  * Returns 0 if the ent was added or skipped, -1 on error, 1 if the dirbuf is full (no more ents should be added).
terom@7:  */
terom@27: int dirbuf_add (fuse_req_t req, struct dirbuf *buf, off_t ent_off, off_t next_off, const char *ent_name, fuse_ino_t ent_ino, mode_t ent_mode);
terom@7: 
terom@7: /*
terom@7:  * Attempt to send the readdir reply, free the buf, and return the error code from fuse_reply_buf
terom@7:  */
terom@7: int dirbuf_done (fuse_req_t req, struct dirbuf *buf);
terom@7: 
terom@27: /*
terom@27:  * Release the dirop without sending any reply back.
terom@27:  *
terom@27:  * This is safe to be called multiple times.
terom@27:  */
terom@27: void dirbuf_release (struct dirbuf *buf);
terom@27: 
terom@7: #endif /* DIRBUF_H */