A program that I’m trying to make compatible with RTEMS (iperf 2.0.5) uses the
posix function setitimer(), which has only a trivial implementation under
RTEMS. I modified the code as follows:
if ( mMode_Time ) {
memset (&it, 0, sizeof (it));
it.it_value.tv_sec = (int) (mSettings->mAmount / 100.0);
it.it_value.tv_usec = (int) 10000 * (mSettings->mAmount -
it.it_value.tv_sec * 100.0);
#ifndef __rtems__
err = setitimer( ITIMER_REAL, &it, NULL );
if ( err != 0 ) {
perror("setitimer");
exit(1);
}
#else
FAIL (mSettings->mAmount > UINT_MAX / 10000, "ualarm", mSettings);
ualarm(mSettings->mAmount * 10000, 0);
#endif
}
If implementing setitimer( ITIMER_REAL, … ) with ualarm() is a valid thing to
do (please comment), would it be useful for me to provide a patch to
setitimer() that operates this way? I’m not sure whether in this scenario the
alarm must be cancelled with alarm(0, 0) later or not, but that would prevent
this from being a generic solution.
Cheers,
Ric
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