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/*
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* Copyright 2017 The Abseil Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* C shims for the C++ malloc_hook.h. See malloc_hook.h for details
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* on how to use these.
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*/
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#ifndef ABSL_BASE_INTERNAL_MALLOC_HOOK_C_H_
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#define ABSL_BASE_INTERNAL_MALLOC_HOOK_C_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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typedef int (*MallocHook_GetStackTraceFn)(void**, int, int);
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typedef void (*MallocHook_NewHook)(const void* ptr, size_t size);
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typedef void (*MallocHook_DeleteHook)(const void* ptr);
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typedef int64_t MallocHook_AllocHandle;
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typedef struct {
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/* See malloc_hook.h for documentation for this struct. */
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MallocHook_AllocHandle handle;
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size_t allocated_size;
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double weight;
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int stack_depth;
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const void* stack;
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} MallocHook_SampledAlloc;
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typedef void (*MallocHook_SampledNewHook)(
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const MallocHook_SampledAlloc* sampled_alloc);
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typedef void (*MallocHook_SampledDeleteHook)(MallocHook_AllocHandle handle);
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typedef void (*MallocHook_PreMmapHook)(const void* start, size_t size,
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int protection, int flags, int fd,
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off_t offset);
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typedef void (*MallocHook_MmapHook)(const void* result, const void* start,
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size_t size, int protection, int flags,
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int fd, off_t offset);
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typedef int (*MallocHook_MmapReplacement)(const void* start, size_t size,
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int protection, int flags, int fd,
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off_t offset, void** result);
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typedef void (*MallocHook_MunmapHook)(const void* start, size_t size);
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typedef int (*MallocHook_MunmapReplacement)(const void* start, size_t size,
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int* result);
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typedef void (*MallocHook_MremapHook)(const void* result, const void* old_addr,
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size_t old_size, size_t new_size,
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int flags, const void* new_addr);
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typedef void (*MallocHook_PreSbrkHook)(ptrdiff_t increment);
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typedef void (*MallocHook_SbrkHook)(const void* result, ptrdiff_t increment);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif /* __cplusplus */
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#endif /* ABSL_BASE_INTERNAL_MALLOC_HOOK_C_H_ */
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