source: src/tests/coroutine/runningTotal.c@ 6dba9f99

// 
// Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
// 
// runningTotal.c -- 
// 
// Author           : Peter A. Buhr
// Created On       : Wed Dec  6 08:05:27 2017
// Last Modified By : Peter A. Buhr
// Last Modified On : Wed Dec  6 08:09:24 2017
// Update Count     : 2
// 

#include <fstream>
#include <coroutine>

coroutine RunTotal {                                                                    // input numbers and return running total
        int input, total;                                                                       // communication
};

void ?{}( RunTotal & rntl ) { rntl.total = 0; }

void update( RunTotal & rntl, int input ) with( rntl ) { // helper
        total += input;                                                                         // remember between activations
        suspend();                                                                                      // inactivate on stack
}

void main( RunTotal & rntl ) with( rntl ) {
        for ( ;; ) {
                update( rntl, input );
        } // for
}

int add( RunTotal & rntl, int input ) {
        rntl.input = input;                                                                     // pass input to coroutine
        resume( rntl );
        return rntl.total;                                                                      // return total from coroutine
}
int main() {
        RunTotal rntl;
        for ( int i = 0; i < 10; i += 1 ) {
                sout | i | add( rntl, i ) | endl;
        } // for
}

// Local Variables: //
// tab-width: 4 //
// compile-command: "cfa runningTotal.c" //
// End: //