ardupilot/libraries/Desktop/support/util.cpp
Andrew Tridgell 66d65121cc autotest: switch to big-endian metric packets internally
now that all the sim code is internal to the APM git repo, we can
choose saner packet formats
2011-12-02 22:12:58 +11:00

40 lines
669 B
C++

/*
SITL handling - utility functions
This simulates the APM1 hardware sufficiently for the APM code to
think it is running on real hardware
Andrew Tridgell November 2011
*/
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdint.h>
#include <fcntl.h>
#include "desktop.h"
void set_nonblocking(int fd)
{
unsigned v = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, v | O_NONBLOCK);
}
double normalise(double v, double min, double max)
{
while (v < min) {
v += (max - min);
}
while (v > max) {
v -= (max - min);
}
return v;
}
double normalise180(double v)
{
return normalise(v, -180, 180);
}