int
serialMonitorWaitLines (SerialDevice *serial) {
#ifdef TIOCMIWAIT
if (ioctl(serial->fileDescriptor, TIOCMIWAIT, serial->waitLines) != -1) return 1;
logSystemError("TIOCMIWAIT");
#else /* TIOCMIWAIT */
SerialLines old = serial->linesState & serial->waitLines;
while (serialGetLines(serial)) {
if ((serial->linesState & serial->waitLines) != old) return 1;
}
#endif /* TIOCMIWAIT */
return 0;
}
int
serialPutLines (SerialDevice *serial, SerialLines high, SerialLines low) {
#ifdef TIOCMSET
if (serialGetLines(serial)) {
SerialLines lines = serial->linesState;
lines |= high;
lines &= ~low;
if (ioctl(serial->fileDescriptor, TIOCMSET, &lines) != -1) return 1;
logSystemError("TIOCMSET");
}
#else /* TIOCMSET */
#warning setting modem lines not supported on this platform
#endif /* TIOCMSET */
return 0;
}
static int
serialReadLines (SerialDevice *serial, SerialLines *lines) {
int result = serialGetLines(serial);
if (result) *lines = serial->linesState;
return result;
}
