sc_buffer.hh revision 12867
1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#ifndef __SYSTEMC_EXT_CHANNEL_SC_BUFFER_HH__ 31#define __SYSTEMC_EXT_CHANNEL_SC_BUFFER_HH__ 32 33#include "../core/sc_module.hh" // for sc_gen_unique_name 34#include "sc_signal.hh" 35#include "warn_unimpl.hh" // for warn_unimpl 36 37namespace sc_core 38{ 39 40// Having a default value for the WRITER_POLICY parameter is non-standard, but 41// matches the Accellera implementation to enable the regression tests. 42template <class T, sc_writer_policy WRITER_POLICY=SC_ONE_WRITER> 43class sc_buffer : public sc_signal<T, WRITER_POLICY> 44{ 45 public: 46 sc_buffer() : sc_signal<T, WRITER_POLICY>(sc_gen_unique_name("buffer")) {} 47 explicit sc_buffer(const char *name) : 48 sc_signal<T, WRITER_POLICY>(sc_gen_unique_name(name)) 49 {} 50 51 virtual void 52 write(const T&) 53 { 54 sc_channel_warn_unimpl(__PRETTY_FUNCTION__); 55 } 56 57 sc_buffer<T, WRITER_POLICY> & 58 operator = (const T &) 59 { 60 sc_channel_warn_unimpl(__PRETTY_FUNCTION__); 61 return *this; 62 } 63 sc_buffer<T, WRITER_POLICY> & 64 operator = (const sc_signal<T, WRITER_POLICY> &) 65 { 66 sc_channel_warn_unimpl(__PRETTY_FUNCTION__); 67 return *this; 68 } 69 sc_buffer<T, WRITER_POLICY> & 70 operator = (const sc_buffer<T, WRITER_POLICY> &) 71 { 72 sc_channel_warn_unimpl(__PRETTY_FUNCTION__); 73 return *this; 74 } 75 76 virtual const char *kind() const { return "sc_buffer"; } 77 78 protected: 79 virtual void 80 update() 81 { 82 sc_channel_warn_unimpl(__PRETTY_FUNCTION__); 83 } 84 85 private: 86 // Disabled 87 sc_buffer(const sc_buffer<T, WRITER_POLICY> &) {} 88}; 89 90} // namespace sc_core 91 92#endif //__SYSTEMC_EXT_CHANNEL_SC_BUFFER_HH__ 93