76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
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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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* C shims for the C++ malloc_extension.h. See malloc_extension.h for
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* details. Note these C shims always work on
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* MallocExtension::instance(); it is not possible to have more than
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* one MallocExtension object in C applications.
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*/
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#ifndef ABSL_BASE_INTERNAL_MALLOC_EXTENSION_C_H_
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#define ABSL_BASE_INTERNAL_MALLOC_EXTENSION_C_H_
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#include <stddef.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
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#define kMallocExtensionHistogramSize 64
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int MallocExtension_VerifyAllMemory(void);
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int MallocExtension_VerifyNewMemory(const void* p);
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int MallocExtension_VerifyArrayNewMemory(const void* p);
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int MallocExtension_VerifyMallocMemory(const void* p);
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int MallocExtension_MallocMemoryStats(int* blocks, size_t* total,
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int histogram[kMallocExtensionHistogramSize]);
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void MallocExtension_GetStats(char* buffer, int buffer_length);
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/* TODO(csilvers): write a C version of these routines, that perhaps
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* takes a function ptr and a void *.
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*/
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/* void MallocExtension_GetHeapSample(MallocExtensionWriter* result); */
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/* void MallocExtension_GetHeapGrowthStacks(MallocExtensionWriter* result); */
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int MallocExtension_GetNumericProperty(const char* property, size_t* value);
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int MallocExtension_SetNumericProperty(const char* property, size_t value);
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void MallocExtension_MarkThreadIdle(void);
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void MallocExtension_MarkThreadBusy(void);
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void MallocExtension_ReleaseToSystem(size_t num_bytes);
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void MallocExtension_ReleaseFreeMemory(void);
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size_t MallocExtension_GetEstimatedAllocatedSize(size_t size);
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size_t MallocExtension_GetAllocatedSize(const void* p);
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/*
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* NOTE: These enum values MUST be kept in sync with the version in
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* malloc_extension.h
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*/
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typedef enum {
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MallocExtension_kUnknownOwnership = 0,
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MallocExtension_kOwned,
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MallocExtension_kNotOwned
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} MallocExtension_Ownership;
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MallocExtension_Ownership MallocExtension_GetOwnership(const void* p);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* ABSL_BASE_INTERNAL_MALLOC_EXTENSION_C_H_ */
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