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git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-05 06:58:06 +02:00
tools/lib/timeout.h, tools/lib/timeout.c: added timeout/deadline functions
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106ef7ff7f
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@ -19,7 +19,8 @@ OBJS_host = atusb.o atusb-spi.o atusb-common.o usbopen.o
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OBJS_ben_jlime = atben.o
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OBJS_ben_openwrt = atben.o
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OBJS = atrf.o atnet.o misctxrx.o cwtest.o netio.o daemon.o $(OBJS_$(TARGET))
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OBJS = atrf.o atnet.o misctxrx.o cwtest.o netio.o daemon.o timeout.o \
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$(OBJS_$(TARGET))
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.PHONY: all clean spotless
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68
tools/lib/timeout.c
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68
tools/lib/timeout.c
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@ -0,0 +1,68 @@
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/*
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* lib/timeout.c - Set up AT86RF230/231 constant wave test mode
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*
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* Written 2011 by Werner Almesberger
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* Copyright 2011 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/time.h>
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#include "timeout.h"
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void timeout_start(struct timeout *t, int ms)
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{
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if (gettimeofday(&t->end, NULL) < 0) {
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perror("gettimeofday");
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exit(1);
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}
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t->end.tv_sec += ms/1000;
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t->end.tv_usec += 1000*(ms % 1000);
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if (t->end.tv_usec > 999999) {
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t->end.tv_sec++;
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t->end.tv_usec -= 1000000;
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}
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}
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int timeout_reached(const struct timeout *t)
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{
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struct timeval now;
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if (gettimeofday(&now, NULL) < 0) {
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perror("gettimeofday");
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exit(1);
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}
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if (now.tv_sec > t->end.tv_sec)
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return 1;
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if (now.tv_sec < t->end.tv_sec)
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return 0;
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return now.tv_usec >= t->end.tv_usec;
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}
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int timeout_left_ms(const struct timeout *t)
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{
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struct timeval now;
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int ms;
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if (gettimeofday(&now, NULL) < 0) {
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perror("gettimeofday");
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exit(1);
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}
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now.tv_sec = t->end.tv_sec-now.tv_sec;
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now.tv_usec = t->end.tv_usec-now.tv_usec;
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if (now.tv_usec < 0) {
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now.tv_sec--;
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now.tv_usec += 1000000;
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}
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return now.tv_sec*1000+now.tv_usec/1000;
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}
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29
tools/lib/timeout.h
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29
tools/lib/timeout.h
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@ -0,0 +1,29 @@
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/*
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* lib/timeout.h - ATRF driver API
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*
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* Written 2011 by Werner Almesberger
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* Copyright 2011 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef TIMEOUT_H
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#define TIMEOUT_H
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#include <sys/time.h>
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struct timeout {
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struct timeval end;
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};
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void timeout_start(struct timeout *t, int ms);
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int timeout_reached(const struct timeout *t);
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int timeout_left_ms(const struct timeout *t);
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#endif /* !TIMEOUT_H */
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