/**
* This static method creates the main function as described in the class comment. It first checks
* that the filter has no inputs/outputs and does not declare any I/O rates Then it creates the
* function and attaches it to the filter.
*
* @param top The single flatnode that contains the single filter of the app.
* @param executionCounts The schedule for the stream graph as calculated by the scheduler.
*/
public static void doit(FlatNode top, HashMap[] executionCounts) {
assert top.contents instanceof SIRFilter : "Error top of graph is not filter";
assert top.inputs == 0 && top.ways == 0 : "Error: Fused filter contains neighbors";
SIRFilter filter = (SIRFilter) top.contents;
assert filter.getPushInt() == 0 && filter.getPopInt() == 0 && filter.getPeekInt() == 0
: "Error: fused filter declares non-zero I/O rate(s)";
// make sure there are no push, pops or peeks...
assert CheckForCommunication.check(filter) == false
: "Error: Communication expression found in filter";
// assert !(filter instanceof SIRTwoStageFilter) :
// "Error: Fused filter is a two stage";
ExecutionCode exeCode = new ExecutionCode();
// check to see if the schedule is valid and
// set the number of times the filter fires in the init
// stage (weird)
exeCode.checkSchedule(executionCounts, filter);
// create the main function of the C code that will call
// the filter
JBlock block = exeCode.mainFunction(filter);
// create the method and add it to the filter
JMethodDeclaration mainFunct =
new JMethodDeclaration(
null,
at.dms.kjc.Constants.ACC_PUBLIC,
CStdType.Void,
Names.main,
JFormalParameter.EMPTY,
CClassType.EMPTY,
block,
null,
null);
// make the main the new work function
filter.setWork(mainFunct);
}
