libctf: add ctf_ref

This allows you to bump the refcount on a ctf_file_t, so that you can
smuggle it out of iterators which open and close the ctf_file_t for you
around the loop body (like ctf_archive_iter).

You still can't use this to preserve a ctf_file_t for longer than the
lifetime of its containing entity (e.g. ctf_archive).

include/
	* ctf-api.h (ctf_ref): New.
libctf/
	* libctf.ver (ctf_ref): New.
	* ctf-open.c (ctf_ref): Implement it.
This commit is contained in:
Nick Alcock
2020-06-08 09:24:01 +01:00
parent 9850ce4d7b
commit 2399827bfa
5 changed files with 22 additions and 0 deletions

View File

@ -285,6 +285,7 @@ extern ctf_file_t *ctf_simple_open (const char *, size_t, const char *, size_t,
size_t, const char *, size_t, int *);
extern ctf_file_t *ctf_bufopen (const ctf_sect_t *, const ctf_sect_t *,
const ctf_sect_t *, int *);
extern void ctf_ref (ctf_file_t *);
extern void ctf_file_close (ctf_file_t *);
extern int ctf_arc_write (const char *, ctf_file_t **, size_t,