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/* -*- c++ -*- */
/*
* Copyright 2008,2009 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef INCLUDED_GR_TPB_DETAIL_H
#define INCLUDED_GR_TPB_DETAIL_H
#include <gr_core_api.h>
#include <gruel/thread.h>
#include <deque>
#include <gruel/pmt.h>
class gr_block_detail;
/*!
* \brief used by thread-per-block scheduler
*/
struct GR_CORE_API gr_tpb_detail {
gruel::mutex mutex; //< protects all vars
bool input_changed;
gruel::condition_variable input_cond;
bool output_changed;
gruel::condition_variable output_cond;
public:
gr_tpb_detail()
: input_changed(false), output_changed(false) { }
//! Called by us to tell all our upstream blocks that their output may have changed.
void notify_upstream(gr_block_detail *d);
//! Called by us to tell all our downstream blocks that their input may have changed.
void notify_downstream(gr_block_detail *d);
//! Called by us to notify both upstream and downstream
void notify_neighbors(gr_block_detail *d);
//! Called by pmt msg posters
void notify_msg(){
input_cond.notify_one();
output_cond.notify_one();
}
//! Called by us
void clear_changed()
{
gruel::scoped_lock guard(mutex);
input_changed = false;
output_changed = false;
}
private:
//! Used by notify_downstream
void set_input_changed()
{
gruel::scoped_lock guard(mutex);
input_changed = true;
input_cond.notify_one();
}
//! Used by notify_upstream
void set_output_changed()
{
gruel::scoped_lock guard(mutex);
output_changed = true;
output_cond.notify_one();
}
};
#endif /* INCLUDED_GR_TPB_DETAIL_H */
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