thread_attr.hpp

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#ifndef __FRIOS_POSIX_THREADS_THREAD_ATTR_HPP__
#define __FRIOS_POSIX_THREADS_THREAD_ATTR_HPP__

#include <frios/utils/unique.hpp>
#include <frios/posix/error.hpp>

#include <pthread.h>

namespace frios {
namespace posix {

class thread;


class thread_attr
{
private:
    friend class thread;

    unique<pthread_attr_t> _attr;

    thread_attr(const thread_attr&) = delete;
public:

    struct init_error : error
    {
        init_error(int error_code)
         : error(error_code)
        { }
    };


    thread_attr(void)
    {
        int fail = pthread_attr_init(&_attr);
        if(fail) throw init_error(fail);
    }

    thread_attr(thread_attr&& tmp)
     : _attr(std::move(tmp._attr))
    { }

    ~thread_attr(void)
    {
        if(_attr.valid())
            pthread_attr_destroy(&_attr);
    }

    enum class detach_state : int
    {
        detached = PTHREAD_CREATE_DETACHED,
        joinable = PTHREAD_CREATE_JOINABLE
    };

    detach_state get_detach_state(void) const
    {
        int state;
        pthread_attr_getdetachstate(&_attr, &state);
        return detach_state(state);
    }

    void set_detach_state(detach_state state)
    {
        pthread_attr_setdetachstate(&_attr, int(state));
    }
};

} // namespace posix
} // namespace frios

#endif // include guard