magistraleinformaticanetworking:spm:ff29_pipe1
One stage pipeline (sample code)
- pipe1.cpp
/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */ /* *************************************************************************** * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * As a special exception, you may use this file as part of a free software * library without restriction. Specifically, if other files instantiate * templates or use macros or inline functions from this file, or you compile * this file and link it with other files to produce an executable, this * file does not by itself cause the resulting executable to be covered by * the GNU General Public License. This exception does not however * invalidate any other reasons why the executable file might be covered by * the GNU General Public License. * **************************************************************************** */ /* * 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; }
magistraleinformaticanetworking/spm/ff29_pipe1.txt · Ultima modifica: 29/10/2013 alle 17:18 (11 anni fa) da Marco Danelutto