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IO: Make waitFor throw an exception in case of a timeout

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Previously, it returned a boolean indicating success. But the code on the caller-side will be nicer to read with exceptions.
This commit is contained in:
gohai
2017-02-24 11:21:02 +01:00
parent ad6986caef
commit 82e0c8764d
1 changed files with 6 additions and 3 deletions
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9
java/libraries/io/src/processing/io/GPIO.java
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@@ -456,15 +456,18 @@ public class GPIO {
/**
* Waits for the value of an input pin to change
*
* This function will throw a RuntimeException in case of a timeout.
* @param pin GPIO pin
* @param mode what to wait for: GPIO.CHANGE, GPIO.FALLING or GPIO.RISING
* @param timeout don't wait more than timeout milliseconds
* @return true if the interrupt occured, false if the timeout occured
* @webref
*/
public static boolean waitFor(int pin, int mode, int timeout) {
public static void waitFor(int pin, int mode, int timeout) {
enableInterrupt(pin, mode);
return waitForInterrupt(pin, timeout);
if (waitForInterrupt(pin, timeout) == false) {
throw new RuntimeException("Timeout occurred");
}
}