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libctf: add ctf_archive_count

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Another count that was otherwise unavailable without doing expensive
operations.

include/
	* ctf-api.h (ctf_archive_count): New.

libctf/
	* ctf-archive.c (ctf_archive_count): New.
	* libctf.ver: New public function.
This commit is contained in:
Nick Alcock
2020-06-02 21:14:22 +01:00
parent e0325e2ced
commit 9c23dfa5aa
5 changed files with 21 additions and 0 deletions
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10
libctf/ctf-archive.c
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@ -617,6 +617,16 @@ ctf_arc_open_by_offset (const struct ctf_archive *arc,
return fp;
}
/* Return the number of members in an archive. */
size_t
ctf_archive_count (const ctf_archive_t *wrapper)
{
if (!wrapper->ctfi_is_archive)
return 1;
return wrapper->ctfi_archive->ctfa_nfiles;
}
/* Raw iteration over all CTF files in an archive. We pass the raw data for all
CTF files in turn to the specified callback function. */
static int