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libctf: add new dynhash functions

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Future commits will use these.

ctf_dynhash_elements: count elements in a dynhash
ctf_dynhash_lookup_kv: look up and return pointers to the original key
                       and value in a dynhash (the only way of getting
                       a reference to the original key)
ctf_dynhash_iter_find: iterate until an item is found, then return its
                       key
ctf_dynhash_cinsert: insert a const key / value into a dynhash (a thim
                     wrapper in a new header dedicated to inline
                     functions).

As with the rest of ctf_dynhash, this is not public API.  No impact
on existing callers is expected.

libctf/
	* ctf-inlines.h: New file.
	* ctf-impl.h: Include it.
	(ctf_hash_iter_find_f): New typedef.
	(ctf_dynhash_elements): New.
	(ctf_dynhash_lookup_kv): New.
	(ctf_dynhash_iter_find): New.
	* ctf-hash.c (ctf_dynhash_lookup_kv): New.
	(ctf_traverse_find_cb_arg_t): New.
	(ctf_hashtab_traverse_find): New.
	(ctf_dynhash_iter_find): New.
	(ctf_dynhash_elements): New.
This commit is contained in:
Nick Alcock
2020-06-02 21:31:45 +01:00
parent 469e75b621
commit 809f6eb332
4 changed files with 122 additions and 0 deletions
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45
libctf/ctf-inlines.h Normal file
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/* Inline functions.
Copyright (C) 2020 Free Software Foundation, Inc.
This file is part of libctf.
libctf is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not see
<http://www.gnu.org/licenses/>. */
#ifndef _CTF_INLINES_H
#define _CTF_INLINES_H
#ifdef __cplusplus
extern "C"
{
#endif
#include "config.h"
#ifndef _libctf_malloc_
#error "ctf-inlines.h" should not be included directly: include "ctf-impl.h".
#endif
static inline int
ctf_dynhash_cinsert (ctf_dynhash_t *h, const void *k, const void *v)
{
return ctf_dynhash_insert (h, (void *) k, (void *) v);
}
#ifdef __cplusplus
}
#endif
#endif /* _CTF_INLINES_H */