GNU Radio 3.2.2 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2007,2008 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 3, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 51 Franklin Street, 00020 * Boston, MA 02110-1301, USA. 00021 */ 00022 00023 #ifndef INCLUDED_GR_TOP_BLOCK_IMPL_H 00024 #define INCLUDED_GR_TOP_BLOCK_IMPL_H 00025 00026 #include <gr_scheduler.h> 00027 #include <boost/thread.hpp> 00028 00029 typedef boost::mutex gr_mutex; // FIXME move these elsewhere 00030 typedef boost::lock_guard<boost::mutex> gr_lock_guard; 00031 00032 /*! 00033 *\brief Abstract implementation details of gr_top_block 00034 * \ingroup internal 00035 * 00036 * The actual implementation of gr_top_block. Separate class allows 00037 * decoupling of changes from dependent classes. 00038 * 00039 */ 00040 class gr_top_block_impl 00041 { 00042 public: 00043 gr_top_block_impl(gr_top_block *owner); 00044 ~gr_top_block_impl(); 00045 00046 // Create and start scheduler threads 00047 void start(); 00048 00049 // Signal scheduler threads to stop 00050 void stop(); 00051 00052 // Wait for scheduler threads to exit 00053 void wait(); 00054 00055 // Lock the top block to allow reconfiguration 00056 void lock(); 00057 00058 // Unlock the top block at end of reconfiguration 00059 void unlock(); 00060 00061 // Dump the flowgraph to stdout 00062 void dump(); 00063 00064 protected: 00065 00066 enum tb_state { IDLE, RUNNING }; 00067 00068 gr_top_block *d_owner; 00069 gr_flat_flowgraph_sptr d_ffg; 00070 gr_scheduler_sptr d_scheduler; 00071 00072 gr_mutex d_mutex; // protects d_state and d_lock_count 00073 tb_state d_state; 00074 int d_lock_count; 00075 00076 private: 00077 void restart(); 00078 }; 00079 00080 #endif /* INCLUDED_GR_TOP_BLOCK_IMPL_H */