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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.
*/
#include "backend/JSONExecTime.h"
#include "backend/IConfig.h"
#include <fstream>
namespace neurun
{
namespace backend
{
/**
* @brief Helper function for reading string from stream
*
* @param str Output string
* @param stream File stream
*/
void readString(std::string &str, std::ifstream &stream)
{
str.clear();
char buf;
while (stream.good())
{
stream.get(buf);
if (buf == '"')
break;
str.push_back(buf);
}
}
/**
* @brief Helper function for reading bool from stream
*
* @param quant Output bool
* @param stream File stream
*/
void readBool(bool &quant, std::ifstream &stream)
{
char buf;
stream.get(buf);
quant = (buf == '1');
stream.get(buf);
}
void printString(const std::string &str, std::ofstream &stream) { stream << "\"" << str << "\""; }
void printBool(bool quant, std::ofstream &stream) { stream << "\"" << quant << "\""; }
void JSON::readOperation(const std::string &backend, const std::string &operation, bool quant,
std::ifstream &stream)
{
uint32_t size = 0;
int64_t time = 0;
std::string int_buf;
char buf;
int number_of_closed_braces = 0;
int number_of_commas = 0;
while (stream.good())
{
stream.get(buf);
switch (buf)
{
case ']':
{
number_of_closed_braces++;
break;
}
case '[':
{
number_of_closed_braces--;
break;
}
default:
{
if (std::isdigit(buf))
{
int_buf.push_back(buf);
}
break;
}
}
if (number_of_closed_braces == 1)
break;
if ((buf == ']' && number_of_closed_braces == 0) ||
(buf == ',' && number_of_closed_braces == -1))
{
switch (number_of_commas % 2)
{
case 0:
{
size = static_cast<uint32_t>(std::atoi(int_buf.c_str()));
break;
}
case 1:
{
time = static_cast<int64_t>(std::atol(int_buf.c_str()));
auto bf = _backends.find(backend);
if (bf != _backends.end())
{
_measurements[bf->second][operation][quant][size] = time;
} // we ignore the records for unsupported backends
break;
}
}
number_of_commas++;
int_buf.clear();
}
}
}
void JSON::printOperation(const std::map<uint32_t, int64_t> &operation_info,
std::ofstream &stream) const
{
for (const auto &items : operation_info)
{
stream << "[" << items.first << ", " << items.second << "], ";
}
stream.seekp(-2, std::ofstream::end);
}
void JSON::uploadOperationsExecTime() const
{
std::ofstream stream(_measurement_file);
if (!stream.is_open())
{
throw std::runtime_error("Failed to save backend config file");
}
else
{
stream << "{";
for (const auto &backend : _measurements)
{
printString(backend.first->config()->id(), stream);
stream << ": {";
for (const auto &operation : backend.second)
{
printString(operation.first, stream);
stream << ": {";
for (const auto &type : operation.second)
{
printBool(type.first, stream);
stream << ": [";
printOperation(type.second, stream);
stream << "], ";
}
stream.seekp(-2, std::ofstream::end);
stream << "}, ";
}
stream.seekp(-2, std::ofstream::end);
stream << "}, ";
}
stream.seekp(-2, std::ofstream::end);
stream << "}";
stream.close();
}
}
void JSON::loadOperationsExecTime()
{
std::ifstream stream(_measurement_file);
if (stream.is_open())
{
std::string backend;
std::string operation;
bool quant = false;
char buf;
int number_of_open_braces = 0;
while (stream.good())
{
stream.get(buf);
switch (buf)
{
case '{':
number_of_open_braces++;
break;
case '}':
number_of_open_braces--;
break;
case '"':
{
if (number_of_open_braces == 1)
{
// read backend string
readString(backend, stream);
}
if (number_of_open_braces == 2)
{
// read operation string
readString(operation, stream);
}
if (number_of_open_braces == 3)
{
// read operation string
readBool(quant, stream);
}
break;
}
case '[':
{
// reading and creating all info for operation
readOperation(backend, operation, quant, stream);
break;
}
default:
break;
}
}
stream.close();
}
}
} // namespace backend
} // namespace neurun
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