git

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/*
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Copyright 2020 Google LLC
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file or at
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https://developers.google.com/open-source/licenses/bsd
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*/
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#include "system.h"
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#include "reftable-malloc.h"
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#include "basics.h"
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static void *(*reftable_malloc_ptr)(size_t sz);
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static void *(*reftable_realloc_ptr)(void *, size_t);
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static void (*reftable_free_ptr)(void *);
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void *reftable_malloc(size_t sz)
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{
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	if (reftable_malloc_ptr)
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		return (*reftable_malloc_ptr)(sz);
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	return malloc(sz);
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}
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void *reftable_realloc(void *p, size_t sz)
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{
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	if (reftable_realloc_ptr)
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		return (*reftable_realloc_ptr)(p, sz);
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	return realloc(p, sz);
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}
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void reftable_free(void *p)
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{
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	if (reftable_free_ptr)
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		reftable_free_ptr(p);
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	else
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		free(p);
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}
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void *reftable_calloc(size_t nelem, size_t elsize)
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{
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	size_t sz = st_mult(nelem, elsize);
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	void *p = reftable_malloc(sz);
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	memset(p, 0, sz);
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	return p;
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}
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void reftable_set_alloc(void *(*malloc)(size_t),
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			void *(*realloc)(void *, size_t), void (*free)(void *))
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{
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	reftable_malloc_ptr = malloc;
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	reftable_realloc_ptr = realloc;
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	reftable_free_ptr = free;
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}
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int hash_size(uint32_t id)
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{
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	switch (id) {
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	case 0:
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	case GIT_SHA1_FORMAT_ID:
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		return GIT_SHA1_RAWSZ;
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	case GIT_SHA256_FORMAT_ID:
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		return GIT_SHA256_RAWSZ;
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	}
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	abort();
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}
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