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<h1>gr_block_executor.h</h1> </div>
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<a href="gr__block__executor_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c++ -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright 2004,2008 Free Software Foundation, Inc.</span>
<a name="l00004"></a>00004 <span class="comment"> * </span>
<a name="l00005"></a>00005 <span class="comment"> * This file is part of GNU Radio</span>
<a name="l00006"></a>00006 <span class="comment"> * </span>
<a name="l00007"></a>00007 <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span>
<a name="l00010"></a>00010 <span class="comment"> * any later version.</span>
<a name="l00011"></a>00011 <span class="comment"> * </span>
<a name="l00012"></a>00012 <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00015"></a>00015 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> * </span>
<a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
<a name="l00018"></a>00018 <span class="comment"> * along with GNU Radio; see the file COPYING. If not, write to</span>
<a name="l00019"></a>00019 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street,</span>
<a name="l00020"></a>00020 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00021"></a>00021 <span class="comment"> */</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#ifndef INCLUDED_GR_BLOCK_EXECUTOR_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_GR_BLOCK_EXECUTOR_H</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <<a class="code" href="gr__runtime__types_8h.html">gr_runtime_types.h</a>></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <fstream></span>
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="comment">//class gr_block_executor;</span>
<a name="l00030"></a>00030 <span class="comment">//typedef boost::shared_ptr<gr_block_executor> gr_block_executor_sptr;</span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="comment"></span>
<a name="l00033"></a>00033 <span class="comment">/*!</span>
<a name="l00034"></a>00034 <span class="comment"> * \brief Manage the execution of a single block.</span>
<a name="l00035"></a>00035 <span class="comment"> * \ingroup internal</span>
<a name="l00036"></a>00036 <span class="comment"> */</span>
<a name="l00037"></a>00037
<a name="l00038"></a><a class="code" href="classgr__block__executor.html">00038</a> <span class="keyword">class </span><a class="code" href="classgr__block__executor.html" title="Manage the execution of a single block.">gr_block_executor</a> {
<a name="l00039"></a>00039 <span class="keyword">protected</span>:
<a name="l00040"></a><a class="code" href="classgr__block__executor.html#ab9937e4ab106fab79eab09c7cddcdd33">00040</a> <a class="code" href="classboost_1_1shared__ptr.html">gr_block_sptr</a> <a class="code" href="classgr__block__executor.html#ab9937e4ab106fab79eab09c7cddcdd33">d_block</a>; <span class="comment">// The block we're trying to run</span>
<a name="l00041"></a><a class="code" href="classgr__block__executor.html#a20d4fe4de7ed294b8c5242c9b334fa0d">00041</a> std::ofstream *<a class="code" href="classgr__block__executor.html#a20d4fe4de7ed294b8c5242c9b334fa0d">d_log</a>;
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="comment">// These are allocated here so we don't have to on each iteration</span>
<a name="l00044"></a>00044
<a name="l00045"></a><a class="code" href="classgr__block__executor.html#a3b4158ca5830bd3a5392d6b0a9d5b4a5">00045</a> <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> <a class="code" href="classgr__block__executor.html#a3b4158ca5830bd3a5392d6b0a9d5b4a5">d_ninput_items_required</a>;
<a name="l00046"></a><a class="code" href="classgr__block__executor.html#ace1cf6dc659fc917b478302679df25a0">00046</a> <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> <a class="code" href="classgr__block__executor.html#ace1cf6dc659fc917b478302679df25a0">d_ninput_items</a>;
<a name="l00047"></a><a class="code" href="classgr__block__executor.html#ab4e2acc5e3b413f6523860ba07f6a8e4">00047</a> <a class="code" href="classstd_1_1vector.html">gr_vector_const_void_star</a> <a class="code" href="classgr__block__executor.html#ab4e2acc5e3b413f6523860ba07f6a8e4">d_input_items</a>;
<a name="l00048"></a><a class="code" href="classgr__block__executor.html#a93c49adedf07dee88183047e01b41ebb">00048</a> <a class="code" href="classstd_1_1vector.html">std::vector<bool></a> <a class="code" href="classgr__block__executor.html#a93c49adedf07dee88183047e01b41ebb">d_input_done</a>;
<a name="l00049"></a><a class="code" href="classgr__block__executor.html#af5ad62748b5939cf7b2cb95c85fb52ac">00049</a> <a class="code" href="classstd_1_1vector.html">gr_vector_void_star</a> <a class="code" href="classgr__block__executor.html#af5ad62748b5939cf7b2cb95c85fb52ac">d_output_items</a>;
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">public</span>:
<a name="l00052"></a>00052 <a class="code" href="classgr__block__executor.html#a4dc1ff14747c15604327e41ee7beb5e8">gr_block_executor</a>(<a class="code" href="classboost_1_1shared__ptr.html">gr_block_sptr</a> block);
<a name="l00053"></a>00053 <a class="code" href="classgr__block__executor.html#a47fe6237f363f2334d2068dd46bdb852">~gr_block_executor</a> ();
<a name="l00054"></a>00054
<a name="l00055"></a><a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207">00055</a> <span class="keyword">enum</span> <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207">state</a> {
<a name="l00056"></a><a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207a893f3d798d48fc39b6249fcd1837983e">00056</a> <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207a893f3d798d48fc39b6249fcd1837983e">READY</a>, <span class="comment">// We made progress; everything's cool.</span>
<a name="l00057"></a><a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207ae0d52e6bbf6447d7e9bcf33f632a400d">00057</a> <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207ae0d52e6bbf6447d7e9bcf33f632a400d">READY_NO_OUTPUT</a>, <span class="comment">// We consumed some input, but produced no output.</span>
<a name="l00058"></a><a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207a4b96846a9225d58739eae0e262d389e0">00058</a> <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207a4b96846a9225d58739eae0e262d389e0">BLKD_IN</a>, <span class="comment">// no progress; we're blocked waiting for input data.</span>
<a name="l00059"></a><a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207a64412e1e45140f46dac9dd458dfe8d69">00059</a> <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207a64412e1e45140f46dac9dd458dfe8d69">BLKD_OUT</a>, <span class="comment">// no progress; we're blocked waiting for output buffer space.</span>
<a name="l00060"></a><a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207add68ae4b38cd3a6bb594a6ca867bef93">00060</a> <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207add68ae4b38cd3a6bb594a6ca867bef93">DONE</a>, <span class="comment">// we're done; don't call me again.</span>
<a name="l00061"></a>00061 };
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="comment">/*</span>
<a name="l00064"></a>00064 <span class="comment"> * \brief Run one iteration.</span>
<a name="l00065"></a>00065 <span class="comment"> */</span>
<a name="l00066"></a>00066 <a class="code" href="classgr__block__executor.html#a7e1298daa0106ff674b68a27cdd09207">state</a> <a class="code" href="classgr__block__executor.html#ad249e669d172abb86eeaae8bad72c7da">run_one_iteration</a>();
<a name="l00067"></a>00067 };
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_GR_BLOCK_EXECUTOR_H */</span>
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