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/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_HH__
#define __SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_HH__
#include "../core/sc_event.hh"
#include "../core/sc_object.hh"
#include "sc_semaphore_if.hh"
namespace sc_core
{
class sc_semaphore : public sc_semaphore_if, public sc_object
{
public:
explicit sc_semaphore(int);
sc_semaphore(const char *name, int);
virtual int wait();
virtual int trywait();
virtual int post();
virtual int get_value() const;
virtual const char *kind() const { return "sc_semaphore"; }
private:
// Disabled
sc_semaphore(const sc_semaphore &) :
sc_interface(), sc_semaphore_if(), sc_object()
{}
sc_semaphore &operator = (const sc_semaphore &) { return *this; }
int _value;
sc_gem5::InternalScEvent posted;
};
} // namespace sc_core
#endif //__SYSTEMC_EXT_CHANNEL_SC_SEMAPHORE_HH__