diff options
Diffstat (limited to 'include/delay.h')
| -rw-r--r-- | include/delay.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/delay.h b/include/delay.h new file mode 100644 index 0000000..fee44c0 --- /dev/null +++ b/include/delay.h @@ -0,0 +1,78 @@ +/*--------------------------------------------------------------- + * Copyright (c) 1999,2000,2001,2002,2003 + * The Board of Trustees of the University of Illinois + * All Rights Reserved. + *--------------------------------------------------------------- + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software (Iperf) and associated + * documentation files (the "Software"), to deal in the Software + * without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, + * sublicense, and/or sell copies of the Software, and to permit + * persons to whom the Software is furnished to do + * so, subject to the following conditions: + * + * + * Redistributions of source code must retain the above + * copyright notice, this list of conditions and + * the following disclaimers. + * + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimers in the documentation and/or other materials + * provided with the distribution. + * + * + * Neither the names of the University of Illinois, NCSA, + * nor the names of its contributors may be used to endorse + * or promote products derived from this Software without + * specific prior written permission. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * ________________________________________________________________ + * National Laboratory for Applied Network Research + * National Center for Supercomputing Applications + * University of Illinois at Urbana-Champaign + * http://www.ncsa.uiuc.edu + * ________________________________________________________________ + * + * delay.h + * by Mark Gates <mgates@nlanr.net> + * ------------------------------------------------------------------- + * accurate microsecond delay + * ------------------------------------------------------------------- */ +#ifndef DELAY_H +#define DELAY_H +#ifdef __cplusplus +extern "C" { +#endif +#include <time.h> +void delay_loop( unsigned long usecs ); +void delay_busyloop(unsigned long usecs); +void delay_nanosleep(unsigned long usecs); +int clock_usleep(struct timeval *request); +int clock_usleep_abstime(struct timeval *request); +#ifdef HAVE_KALMAN +// Kalman filter states +struct kalman_state { + double q; //process noise covariance + double r; //measurement noise covariance + double x; //value + double p; //estimation error covariance + double k; //kalman gain +}; +void delay_kalman(unsigned long usecs); +#endif +#ifdef __cplusplus +} /* end extern "C" */ +#endif + +#endif /* DELAY_H */ |