// io-hub - Modular Input/Output. {{{ // // Copyright (C) 2013 Nicolas Schodet // // APBTeam: // Web: http://apbteam.org/ // Email: team AT apbteam DOT org // // 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 2 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, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // }}} #include "fsm_queue.hh" FsmQueue::FsmQueue () : head_ (0), nb_ (0) { } void FsmQueue::post (Event e) { ucoo::assert (nb_ < queue_size_); int tail = (head_ + nb_) % queue_size_; events_[tail] = e; nb_++; } FsmQueue::Event FsmQueue::pop () { Event e; ucoo::assert (nb_ > 0); e = events_[head_]; nb_--; head_ = (head_ + 1) % queue_size_; return e; }