thread_utils.h

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/*
 * libmavconn
 * Copyright 2014,2015,2016 Vladimir Ermakov, All rights reserved.
 *
 * This file is part of the mavros package and subject to the license terms
 * in the top-level LICENSE file of the mavros repository.
 * https://github.com/mavlink/mavros/tree/master/LICENSE.md
 */

#pragma once

#include <thread>
#include <string>
#include <cstdio>
#include <sstream>
#include <pthread.h>

namespace mavconn {
namespace utils {

template<typename ... Args>
std::string format(const std::string &fmt, Args ... args)
{
        // C++11 specify that string store elements continously
        std::string ret;

        auto sz = std::snprintf(nullptr, 0, fmt.c_str(), args...);
        ret.reserve(sz + 1); ret.resize(sz);    // to be sure there have room for \0
        std::snprintf(&ret.front(), ret.capacity() + 1, fmt.c_str(), args...);
        return ret;
}

template<typename ... Args>
bool set_this_thread_name(const std::string &name, Args&& ... args)
{
        auto new_name = format(name, std::forward<Args>(args)...);

#ifdef __APPLE__
        return pthread_setname_np(new_name.c_str()) == 0;
#else
        pthread_t pth = pthread_self();
        return pthread_setname_np(pth, new_name.c_str()) == 0;
#endif
}

template <typename T>
inline const std::string to_string_ss(T &obj)
{
        std::ostringstream ss;
        ss << obj;
        return ss.str();
}

constexpr size_t operator"" _KiB (unsigned long long sz)
{
        return sz * 1024;
}
}       // namespace utils
}       // namespace mavconn