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https://git.proxmox.com/git/libgit2
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01fed0a8f9
This updates khash.h with some extra features (like error checking on allocations, ability to use wrapped malloc, foreach calls, etc), creates two high-level wrappers around khash: `git_khash_str` and `git_khash_oid` for string-to-void-ptr and oid-to-void-ptr tables, then converts all of the old usage of `git_hashtable` over to use these new hashtables. For `git_khash_str`, I've tried to create a set of macros that yield an API not too unlike the old `git_hashtable` API. Since the oid hashtable is only used in one file, I haven't bother to set up all those macros and just use the khash APIs directly for now.
43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/*
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* Copyright (C) 2012 the libgit2 contributors
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_khash_oid_h__
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#define INCLUDE_khash_oid_h__
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#include "common.h"
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#include "git2/oid.h"
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#define kmalloc git__malloc
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#define kcalloc git__calloc
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#define krealloc git__realloc
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#define kfree git__free
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#include "khash.h"
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__KHASH_TYPE(oid, const git_oid *, void *);
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typedef khash_t(oid) git_khash_oid;
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GIT_INLINE(khint_t) hash_git_oid(const git_oid *oid)
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{
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int i;
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khint_t h = 0;
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for (i = 0; i < 20; ++i)
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h = (h << 5) - h + oid->id[i];
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return h;
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}
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GIT_INLINE(int) hash_git_oid_equal(const git_oid *a, const git_oid *b)
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{
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return (memcmp(a->id, b->id, sizeof(a->id)) == 0);
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}
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#define GIT_KHASH_OID__IMPLEMENTATION \
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__KHASH_IMPL(oid, static inline, const git_oid *, void *, 1, hash_git_oid, hash_git_oid_equal)
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#define git_khash_oid_alloc() kh_init(oid)
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#define git_khash_oid_free(h) kh_destroy(oid,h), h = NULL
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#endif
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