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/*
* Copyright (C) 2017 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 INCIDENT_HELPER_UTIL_H
#define INCIDENT_HELPER_UTIL_H
#include <string>
#include <vector>
#include <sstream>
typedef std::vector<std::string> header_t;
typedef std::vector<std::string> record_t;
const char DEFAULT_NEWLINE = '\n';
const std::string DEFAULT_WHITESPACE = " \t";
std::string trim(const std::string& s, const std::string& whitespace = DEFAULT_WHITESPACE);
void split(const std::string& line, std::vector<std::string>& words,
const std::string& delimiters = DEFAULT_WHITESPACE);
bool assertHeaders(const char* expected[], const std::vector<std::string>& actual);
/**
* Reader class reads data from given fd in streaming fashion.
* The buffer size is controlled by capacity parameter.
*/
class Reader
{
public:
Reader(const int fd);
Reader(const int fd, const size_t capacity);
~Reader();
bool readLine(std::string& line, const char newline = DEFAULT_NEWLINE);
bool ok(std::string& error);
private:
int mFd; // set mFd to -1 when read EOF()
const size_t mMaxSize;
size_t mBufSize;
char* mBuf; // implements a circular buffer
int mRead;
int mFlushed;
std::string mStatus;
// end of read
inline bool EOR() { return mFd == -1 && mBufSize == 0; };
};
#endif // INCIDENT_HELPER_UTIL_H
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