common.h

#ifndef COMMON_H
#define COMMON_H

extern "C" {
#include "api_types.hpp"
// api_types.h defines LSL_TYPES so it needs to be included before the next header
#include "../include/lsl/common.h"
}
#include <boost/version.hpp>
#include <stdexcept>
#include <string>
#include <vector>

#ifdef _WIN32
#define LIBLSL_CPP_API __declspec(dllexport)
#else
#define LIBLSL_CPP_API
#endif

#ifdef _MSC_VER
#pragma warning(disable : 4275)
#endif

#ifndef BOOST_CSTDINT_HPP
#include <cstdint>
#endif

#if BOOST_VERSION < 104500
#error                                                                                             \
	"Please do not compile this with a lslboost version older than 1.45 because the library would otherwise not be protocol-compatible with builds using other versions."
#endif

// compiler hint that the given expression is likely or unlikely
// (e.g., in conditional statements)
#if defined(__clang__) || defined(__GNUC__)
#define LIKELY(x) __builtin_expect(!!(x), 1)
#define UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define LIKELY(x) (x)
#define UNLIKELY(x) (x)
#endif

// the highest supported protocol version
// * 100 is the original version, supported by library versions 1.00+
// * 110 is an alternative protocol that improves throughput, supported by library versions 1.10+
const int LSL_PROTOCOL_VERSION = 110;

// the library version
const int LSL_LIBRARY_VERSION = 116;

/// size of the lsl_last_error() buffer size
const int LAST_ERROR_SIZE = 512;

namespace lsl {
/// A very large time duration (> 1 year) for timeout values.
const double FOREVER = LSL_FOREVER;

/// Constant to indicate that a sample has the next successive time stamp.
const double DEDUCED_TIMESTAMP = LSL_DEDUCED_TIMESTAMP;

/// Constant to indicate that a stream has variable sampling rate.
const double IRREGULAR_RATE = LSL_IRREGULAR_RATE;

/// Obtain a local system time stamp in nanoseconds.
int64_t lsl_local_clock_ns();

/// Obtain a local system time stamp in seconds.
inline double lsl_clock() { return lsl_local_clock(); }

/// Ensure that LSL is initialized.
void ensure_lsl_initialized();

/// Exception class that indicates that a stream inlet's source has been irrecoverably lost.
class LIBLSL_CPP_API lost_error : public std::runtime_error {
public:
	explicit lost_error(const std::string &msg) : std::runtime_error(msg) {}
};


/// Exception class that indicates that an operation failed due to a timeout.
class LIBLSL_CPP_API timeout_error : public std::runtime_error {
public:
	explicit timeout_error(const std::string &msg) : std::runtime_error(msg) {}
};

} // namespace lsl

#endif