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Diffstat (limited to 'include/isochronous.hpp')
| -rw-r--r-- | include/isochronous.hpp | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/include/isochronous.hpp b/include/isochronous.hpp new file mode 100644 index 0000000..7fb5a92 --- /dev/null +++ b/include/isochronous.hpp @@ -0,0 +1,88 @@ +/*--------------------------------------------------------------- + * Copyright (c) 2017 + * Broadcom Corporation + * All Rights Reserved. + *--------------------------------------------------------------- + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software 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 name of Broadcom Coporation, + * 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. + * ________________________________________________________________ + * + * isochronous.hpp + * Suppport for isochonronous traffic testing + * + * by Robert J. McMahon (rjmcmahon@rjmcmahon.com, bob.mcmahon@broadcom.com) + * ------------------------------------------------------------------- + */ +#ifndef ISOCHRONOUS_H +#define ISOCHRONOUS_H + +#include <time.h> +#include "Settings.hpp" +#include "Timestamp.hpp" + +/* ------------------------------------------------------------------- */ +namespace Isochronous { + class FrameCounter { + public : + FrameCounter(double, const Timestamp& start); + FrameCounter(double); + ~FrameCounter(); + unsigned int get(void) const; + unsigned int get(long *); + unsigned int get(const Timestamp&) const; + unsigned int period_us(void); + unsigned int wait_tick(long *sched_err); + unsigned int wait_sync(long sec, long usec); + long getSecs(void); + long getUsecs(void); + void reset(void); + Timestamp next_slot(void); + unsigned int slip; + private : + double frequency; + Timestamp startTime; + Timestamp nextslotTime; + unsigned int period; // units microseconds or 100 ns + unsigned int lastcounter; + unsigned int slot_counter; +#ifdef WIN32 + int mySetWaitableTimer (long delay_time); + HANDLE my_timer; // Timer handle + LARGE_INTEGER delay; // units is 100 nanoseconds +#endif + + }; // end class FrameCounter +} +#endif // ISOCHRONOUS_H |