One stage pipeline (sample code)

pipe1.cpp
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/*
 * Very basic test for the FastFlow pipeline (actually a 2-stage torus).
 *
 */
 
#include <ff/pipeline.hpp>
 
using namespace ff;
 
// generic stage
class Stage: public ff_node {
public:
    Stage():counter(0) {}
 
    int svc_init() {
        printf("Hello, I'm Stage\n");
        return 0;
    }
    void *svc(void *) {       
        if (++counter > 10) return NULL;
        printf("Hi!\n");
        return GO_ON;
    }
    void svc_end() {
        printf("Goodbay\n");
    }
private:
    size_t counter;
};
 
 
int main() {
    ff_pipeline pipe;
    pipe.add_stage(new Stage);
    if (pipe.run_and_wait_end()<0) {
        error("running pipeline\n");
        return -1;
    }
    return 0;
}