/**************************************************************************** * net/socket/net_timeo.c * * Copyright (C) 2007-2009, 2011-2012, 2014 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #if defined(CONFIG_NET) && defined(CONFIG_NET_SOCKOPTS) #include #include #include #include "socket/socket.h" /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: net_timeo * * Description: * Check if a timeout has elapsed. This can be called from a socket poll * function to determine if a timeout has occurred. * * Parameters: * start_time Timeout start time in system clock ticks * timeout Timeout value in deciseconds. * * Returned Value: * 0 (FALSE) if not timeout; 1 (TRUE) if timeout * * Assumptions: * ****************************************************************************/ int net_timeo(systime_t start_time, socktimeo_t timeo) { systime_t timeo_ticks = DSEC2TICK(timeo); systime_t elapsed = clock_systimer() - start_time; if (elapsed >= timeo_ticks) { return TRUE; } return FALSE; } #endif /* CONFIG_NET && CONFIG_NET_SOCKOPTS */