-/**
- * \addtogroup timer
- * @{
- */
-
-/**
- * \file
- * Timer library implementation.
- * \author
- * Adam Dunkels <adam@sics.se>
- */
-
-/*
- * Copyright (c) 2004, Swedish Institute of Computer Science.
- * All rights reserved.
- *
- * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
- *
- * This file is part of the uIP TCP/IP stack
- *
- * Author: Adam Dunkels <adam@sics.se>
- *
- * $Id: timer.c,v 1.2 2006/06/12 08:00:30 adam Exp $
- */
-
-#include "clock.h"
-#include "timer.h"
-
-/*---------------------------------------------------------------------------*/
-/**
- * Set a timer.
- *
- * This function is used to set a timer for a time sometime in the
- * future. The function timer_expired() will evaluate to true after
- * the timer has expired.
- *
- * \param t A pointer to the timer
- * \param interval The interval before the timer expires.
- *
- */
-void
-timer_set(struct timer *t, clock_time_t interval)
-{
- t->interval = interval;
- t->start = clock_time();
-}
-/*---------------------------------------------------------------------------*/
-/**
- * Reset the timer with the same interval.
- *
- * This function resets the timer with the same interval that was
- * given to the timer_set() function. The start point of the interval
- * is the exact time that the timer last expired. Therefore, this
- * function will cause the timer to be stable over time, unlike the
- * timer_rester() function.
- *
- * \param t A pointer to the timer.
- *
- * \sa timer_restart()
- */
-void
-timer_reset(struct timer *t)
-{
- t->start += t->interval;
-}
-/*---------------------------------------------------------------------------*/
-/**
- * Restart the timer from the current point in time
- *
- * This function restarts a timer with the same interval that was
- * given to the timer_set() function. The timer will start at the
- * current time.
- *
- * \note A periodic timer will drift if this function is used to reset
- * it. For preioric timers, use the timer_reset() function instead.
- *
- * \param t A pointer to the timer.
- *
- * \sa timer_reset()
- */
-void
-timer_restart(struct timer *t)
-{
- t->start = clock_time();
-}
-/*---------------------------------------------------------------------------*/
-/**
- * Check if a timer has expired.
- *
- * This function tests if a timer has expired and returns true or
- * false depending on its status.
- *
- * \param t A pointer to the timer
- *
- * \return Non-zero if the timer has expired, zero otherwise.
- *
- */
-int
-timer_expired(struct timer *t)
-{
- return (clock_time_t)(clock_time() - t->start) >= (clock_time_t)t->interval;
-}
-/*---------------------------------------------------------------------------*/
-
-/** @} */
+/**\r
+ * \addtogroup timer\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * \file\r
+ * Timer library implementation.\r
+ * \author\r
+ * Adam Dunkels <adam@sics.se>\r
+ */\r
+\r
+/*\r
+ * Copyright (c) 2004, Swedish Institute of Computer Science.\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ * notice, this list of conditions and the following disclaimer in the\r
+ * documentation and/or other materials provided with the distribution.\r
+ * 3. Neither the name of the Institute nor the names of its contributors\r
+ * may be used to endorse or promote products derived from this software\r
+ * without specific prior written permission.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND\r
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE\r
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
+ * SUCH DAMAGE.\r
+ *\r
+ * This file is part of the uIP TCP/IP stack\r
+ *\r
+ * Author: Adam Dunkels <adam@sics.se>\r
+ *\r
+ * $Id: timer.c,v 1.2 2006/06/12 08:00:30 adam Exp $\r
+ */\r
+\r
+#include "clock.h"\r
+#include "timer.h"\r
+\r
+/*---------------------------------------------------------------------------*/\r
+/**\r
+ * Set a timer.\r
+ *\r
+ * This function is used to set a timer for a time sometime in the\r
+ * future. The function timer_expired() will evaluate to true after\r
+ * the timer has expired.\r
+ *\r
+ * \param t A pointer to the timer\r
+ * \param interval The interval before the timer expires.\r
+ *\r
+ */\r
+void\r
+timer_set(struct timer *t, clock_time_t interval)\r
+{\r
+ t->interval = interval;\r
+ t->start = clock_time();\r
+}\r
+/*---------------------------------------------------------------------------*/\r
+/**\r
+ * Reset the timer with the same interval.\r
+ *\r
+ * This function resets the timer with the same interval that was\r
+ * given to the timer_set() function. The start point of the interval\r
+ * is the exact time that the timer last expired. Therefore, this\r
+ * function will cause the timer to be stable over time, unlike the\r
+ * timer_rester() function.\r
+ *\r
+ * \param t A pointer to the timer.\r
+ *\r
+ * \sa timer_restart()\r
+ */\r
+void\r
+timer_reset(struct timer *t)\r
+{\r
+ t->start += t->interval;\r
+}\r
+/*---------------------------------------------------------------------------*/\r
+/**\r
+ * Restart the timer from the current point in time\r
+ *\r
+ * This function restarts a timer with the same interval that was\r
+ * given to the timer_set() function. The timer will start at the\r
+ * current time.\r
+ *\r
+ * \note A periodic timer will drift if this function is used to reset\r
+ * it. For preioric timers, use the timer_reset() function instead.\r
+ *\r
+ * \param t A pointer to the timer.\r
+ *\r
+ * \sa timer_reset()\r
+ */\r
+void\r
+timer_restart(struct timer *t)\r
+{\r
+ t->start = clock_time();\r
+}\r
+/*---------------------------------------------------------------------------*/\r
+/**\r
+ * Check if a timer has expired.\r
+ *\r
+ * This function tests if a timer has expired and returns true or\r
+ * false depending on its status.\r
+ *\r
+ * \param t A pointer to the timer\r
+ *\r
+ * \return Non-zero if the timer has expired, zero otherwise.\r
+ *\r
+ */\r
+int\r
+timer_expired(struct timer *t)\r
+{\r
+ return (clock_time_t)(clock_time() - t->start) >= (clock_time_t)t->interval;\r
+}\r
+/*---------------------------------------------------------------------------*/\r
+\r
+/** @} */\r
projects / pub / USBasp.git / blobdiff