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Diffstat (limited to 'gnuradio-runtime/lib/block_executor.h')
| -rw-r--r-- | gnuradio-runtime/lib/block_executor.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/block_executor.h b/gnuradio-runtime/lib/block_executor.h new file mode 100644 index 0000000000..4e1d2f1602 --- /dev/null +++ b/gnuradio-runtime/lib/block_executor.h @@ -0,0 +1,78 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2008,2013 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_RUNTIME_BLOCK_EXECUTOR_H +#define INCLUDED_GR_RUNTIME_BLOCK_EXECUTOR_H + +#include <gnuradio/api.h> +#include <gnuradio/runtime_types.h> +#include <gnuradio/tags.h> +#include <fstream> + +namespace gr { + + /*! + * \brief Manage the execution of a single block. + * \ingroup internal + */ + class GR_RUNTIME_API block_executor + { + protected: + block_sptr d_block; // The block we're trying to run + std::ofstream *d_log; + + // These are allocated here so we don't have to on each iteration + + gr_vector_int d_ninput_items_required; + gr_vector_int d_ninput_items; + gr_vector_const_void_star d_input_items; + std::vector<bool> d_input_done; + gr_vector_void_star d_output_items; + std::vector<uint64_t> d_start_nitems_read; //stores where tag counts are before work + std::vector<tag_t> d_returned_tags; + int d_max_noutput_items; + +#ifdef GR_PERFORMANCE_COUNTERS + bool d_use_pc; +#endif /* GR_PERFORMANCE_COUNTERS */ + + public: + block_executor(block_sptr block, int max_noutput_items=100000); + ~block_executor(); + + enum state { + READY, // We made progress; everything's cool. + READY_NO_OUTPUT, // We consumed some input, but produced no output. + BLKD_IN, // no progress; we're blocked waiting for input data. + BLKD_OUT, // no progress; we're blocked waiting for output buffer space. + DONE, // we're done; don't call me again. + }; + + /* + * \brief Run one iteration. + */ + state run_one_iteration(); + }; + +} /* namespace gr */ + +#endif /* INCLUDED_GR_RUNTIME_BLOCK_EXECUTOR_H */ |