Differences

This shows you the differences between two versions of the page.

--- eeros_architecture:sequencer:usage [2015/10/30 10:47] – [Non Blocking Call of a Sub-Sequence] graf
+++ eeros_architecture:sequencer:usage [2015/10/30 10:48] (current) – removed graf
@@ Line 1: / Line 1: @@
-======Sequencer Usage======
-This page describes the usage of the sequencer in the EEROS framework.
-===== Subsequence=====
-A subsequence is a sequence which is called by another sequence. Such a subsequence can be called in a blocking or non-blocking way. Blocking means that the step waits (or blocks) until the subsequence has finished. Non-blocking means that subsequence and main sequence run concurrently.
-====Blocking Call of a Subsequence====
-If you want to save your own data in the sequence, you need to create a new instance of a sequence. This should be done in the desired step (method) of the superior sequence.
-e.g. in the method //MoveBlocking()//
-<code c>
-MyBlockingSubSequence* subSequence = dynamic_cast<MyBlockingSubSequence*>eeros::sequencer::Sequence::getSequence("BlockingSubSequence"));
-if(!subSequence){
-  //callerThread for Blocking Sub Sequence is the same as is in this running Sequence.
-  subSequence = new MyBlockingSubSequence("BlockingSubSequence", callerThread);
-}
-</code>
-**Note:**
-  *In the above lines only one object of //MyBlockingSubSequence// with the name //BlockingSubSequence// is created.
-  *It is not allowed to call the //callerThread.addRunnable(this)// method, because the superior sequence calls the blocking sub-sequence directly by the //run()// method.
-To start the sub-sequence just call //run()//, which calls all methods in the callback list (filled by //fillCallBacks()//). Be sure that the sub-sequence is terminated before you restart it. This could happen, for example, in an exception handling ( [[.:..:sequencer_usage:error_handler | Error Handler]] ).
-<code c>
-//Here we wait for the returning of the subSequence.run() method
-while(subSequence->getState() != eeros::sequencer::kSequenceFinished){
-	subSequence->run();
-}
-</code>