Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/include/boost/fiber/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

//          Copyright Nat Goodspeed 2014.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

// Define fiber_properties, a base class from which a library consumer can
// derive a subclass with specific properties important to a user-coded
// scheduler.

#ifndef BOOST_FIBERS_PROPERTIES_HPP
#define BOOST_FIBERS_PROPERTIES_HPP

#include <boost/fiber/detail/config.hpp>

#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_PREFIX
#endif

# if defined(BOOST_MSVC)
# pragma warning(push)
# pragma warning(disable:4275)
# endif

namespace boost {
namespace fibers {

class context;

namespace algo {

class algorithm;

}

class BOOST_FIBERS_DECL fiber_properties {
protected:
    // initialized by constructor
    context         *   ctx_;
    // set every time this fiber becomes READY
    algo::algorithm *   algo_{ nullptr };

    // Inform the relevant algorithm instance that something important
    // has changed, so it can (presumably) adjust its data structures
    // accordingly.
    void notify() noexcept;

public:
    // Any specific property setter method, after updating the relevant
    // instance variable, can/should call notify().

    // fiber_properties, and by implication every subclass, must accept a back
    // pointer to its context.
    fiber_properties( context * ctx) noexcept :
        ctx_{ ctx } {
    }

    // We need a virtual destructor (hence a vtable) because fiber_properties
    // is stored polymorphically (as fiber_properties*) in context, and
    // destroyed via that pointer.
    virtual ~fiber_properties() = default;

    // not really intended for public use, but algorithm_with_properties
    // must be able to call this
    void set_algorithm( algo::algorithm * algo) noexcept {
        algo_ = algo;
    }
};

}} // namespace boost::fibers

# if defined(BOOST_MSVC)
# pragma warning(pop)
# endif

#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_SUFFIX
#endif

#endif // BOOST_FIBERS_PROPERTIES_HPP