mirror of
https://git.proxmox.com/git/libgit2
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c0f4a0118d
Many delta bases are re-used. Cache them to avoid inflating the same data repeatedly. This version doesn't limit the amount of entries to store, so it can end up using a considerable amound of memory.
66 lines
1.9 KiB
C
66 lines
1.9 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_offmap_h__
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#define INCLUDE_offmap_h__
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#include "common.h"
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#include "git2/types.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(off, git_off_t, void *);
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typedef khash_t(off) git_offmap;
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#define GIT__USE_OFFMAP \
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__KHASH_IMPL(off, static kh_inline, git_off_t, void *, 1, kh_int64_hash_func, kh_int64_hash_equal);
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#define git_offmap_alloc() kh_init(off)
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#define git_offmap_free(h) kh_destroy(off, h), h = NULL
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#define git_offmap_clear(h) kh_clear(off, h)
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#define git_offmap_num_entries(h) kh_size(h)
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#define git_offmap_lookup_index(h, k) kh_get(off, h, k)
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#define git_offmap_valid_index(h, idx) (idx != kh_end(h))
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#define git_offmap_exists(h, k) (kh_get(off, h, k) != kh_end(h))
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#define git_offmap_value_at(h, idx) kh_val(h, idx)
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#define git_offmap_set_value_at(h, idx, v) kh_val(h, idx) = v
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#define git_offmap_delete_at(h, idx) kh_del(off, h, idx)
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#define git_offmap_insert(h, key, val, rval) do { \
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khiter_t __pos = kh_put(off, h, key, &rval); \
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if (rval >= 0) { \
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if (rval == 0) kh_key(h, __pos) = key; \
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kh_val(h, __pos) = val; \
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} } while (0)
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#define git_offmap_insert2(h, key, val, oldv, rval) do { \
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khiter_t __pos = kh_put(off, h, key, &rval); \
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if (rval >= 0) { \
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if (rval == 0) { \
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oldv = kh_val(h, __pos); \
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kh_key(h, __pos) = key; \
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} else { oldv = NULL; } \
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kh_val(h, __pos) = val; \
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} } while (0)
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#define git_offmap_delete(h, key) do { \
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khiter_t __pos = git_offmap_lookup_index(h, key); \
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if (git_offmap_valid_index(h, __pos)) \
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git_offmap_delete_at(h, __pos); } while (0)
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#define git_offmap_foreach kh_foreach
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#define git_offmap_foreach_value kh_foreach_value
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#endif
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