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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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 TRACE_H_
#define TRACE_H_
#include <CL/cl.h>
#include <unordered_map>
#include <fstream>
#include <mutex>
class Trace
{
public:
class Guard
{
friend class Trace;
public:
bool isActive() { return _is_trace_not_available || _is_recursion_detected; }
private:
void markTraceAsReady() { _is_trace_not_available = false; }
void markTraceAsNotReady() { _is_trace_not_available = true; }
void signalizeAboutPossibleRecursion() { _is_recursion_detected = true; }
void signalizeThatDangerOfRecursionHAsPassed() { _is_recursion_detected = false; }
private:
static bool _is_trace_not_available;
static thread_local bool _is_recursion_detected;
};
public:
Trace();
Trace(const Trace &) = delete;
const Trace &operator=(const Trace &) = delete;
void logAllocationEvent(void *memory_ptr, size_t size_of_allocated_space_in_bytes);
void logAllocationEvent(cl_mem memory_ptr, size_t size_of_allocated_space_in_bytes);
void logDeallocationEvent(void *memory_ptr);
void logDeallocationEvent(cl_mem memory_ptr);
~Trace();
private:
const char *getLogFileNameFromEnvVariable(const char *env_variable_name);
private:
std::mutex _lock;
std::ofstream _out;
size_t _total_allocated_bytes_on_cpu = 0;
size_t _total_deallocated_bytes_on_cpu = 0;
size_t _peak_heap_usage_on_cpu = 0;
size_t _total_allocated_bytes_on_gpu = 0;
size_t _total_deallocated_bytes_on_gpu = 0;
size_t _peak_heap_usage_on_gpu = 0;
std::unordered_map<void *, size_t> _memory_in_use_on_cpu;
std::unordered_map<cl_mem, size_t> _memory_in_use_on_gpu;
};
#endif // !TRACE_H
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