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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LIBMEMUNREACHABLE_MEMUNREACHABLE_H_
#define LIBMEMUNREACHABLE_MEMUNREACHABLE_H_
#include <string.h>
#include <sys/cdefs.h>
#ifdef __cplusplus
#include <string>
#include <vector>
namespace android {
struct Leak {
uintptr_t begin;
size_t size;
size_t referenced_count;
size_t referenced_size;
size_t similar_count;
size_t similar_size;
size_t similar_referenced_count;
size_t similar_referenced_size;
size_t total_size;
static const size_t contents_length = 32;
char contents[contents_length];
struct Backtrace {
size_t num_frames;
static const size_t max_frames = 16;
uintptr_t frames[max_frames];
} backtrace;
std::string ToString(bool log_contents) const;
};
struct UnreachableMemoryInfo {
std::vector<Leak> leaks;
size_t num_leaks;
size_t leak_bytes;
size_t num_allocations;
size_t allocation_bytes;
UnreachableMemoryInfo() {}
~UnreachableMemoryInfo() {
// Clear the memory that holds the leaks, otherwise the next attempt to
// detect leaks may find the old data (for example in the jemalloc tcache)
// and consider all the leaks to be referenced.
memset(leaks.data(), 0, leaks.capacity() * sizeof(Leak));
}
std::string ToString(bool log_contents) const;
};
bool GetUnreachableMemory(UnreachableMemoryInfo& info, size_t limit = 100);
std::string GetUnreachableMemoryString(bool log_contents = false, size_t limit = 100);
} // namespace android
#endif
__BEGIN_DECLS
bool LogUnreachableMemory(bool log_contents, size_t limit);
bool NoLeaks();
__END_DECLS
#endif // LIBMEMUNREACHABLE_MEMUNREACHABLE_H_
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