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record.h
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record.h
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// vim: set fileencoding=utf-8 noet :
/* timetag-tools - Tools for UMass FPGA timetagger
*
* Copyright © 2010 Ben Gamari
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/ .
*
* Author: Ben Gamari <bgamari@physics.umass.edu>
*/
#include <cstdint>
#include <stdexcept>
#include <bitset>
#include <vector>
#include <array>
#include "record_format.h"
struct end_stream : std::exception { };
struct record {
record_t data;
uint64_t time_offset;
enum type { STROBE, DELTA };
record(record_t data, int64_t time_offset=0) : data(data), time_offset(time_offset) { }
type get_type() const;
uint64_t get_time() const;
uint64_t get_raw_time() const;
bool get_wrap_flag() const;
bool get_lost_flag() const;
std::bitset<4> get_channels() const;
};
struct parsed_record {
uint64_t time;
record::type type;
bool wrap;
bool lost;
std::array<bool,4> channels;
};
class record_stream {
uint64_t time_offset;
uint64_t rec_idx;
FILE* file;
public:
record_stream(FILE* file);
record_stream(FILE* file, unsigned int drop_wraps);
record get_record();
std::vector<parsed_record> parse_records(unsigned int n);
};
unsigned int get_file_length(const char* path);
void write_record(FILE* fd, record r);