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libctf: add ctf_ref

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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
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libctf/libctf.ver
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@ -24,6 +24,7 @@ LIBCTF_1.0 {
ctf_simple_open;
ctf_create;
ctf_close;
ctf_ref;
ctf_file_close;
ctf_cuname;