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Diffstat (limited to 'src/systemc/ext/channel/sc_fifo.hh')
| -rw-r--r-- | src/systemc/ext/channel/sc_fifo.hh | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/systemc/ext/channel/sc_fifo.hh b/src/systemc/ext/channel/sc_fifo.hh new file mode 100644 index 000000000..668c6b8bd --- /dev/null +++ b/src/systemc/ext/channel/sc_fifo.hh @@ -0,0 +1,171 @@ +/* + * 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. + * + * Authors: Gabe Black + */ + +#ifndef __SYSTEMC_EXT_CHANNEL_SC_FIFO_HH__ +#define __SYSTEMC_EXT_CHANNEL_SC_FIFO_HH__ + +#include "../core/sc_module.hh" // for sc_gen_unique_name +#include "../core/sc_prim.hh" +#include "sc_fifo_in_if.hh" +#include "sc_fifo_out_if.hh" +#include "warn_unimpl.hh" + +namespace sc_core +{ + +class sc_port_base; +class sc_event; + +template <class T> +class sc_fifo : public sc_fifo_in_if<T>, + public sc_fifo_out_if<T>, + public sc_prim_channel +{ + public: + explicit sc_fifo(int size=16) : + sc_fifo_in_if<T>(), sc_fifo_out_if<T>(), + sc_prim_channel(sc_gen_unique_name("fifo")) + {} + explicit sc_fifo(const char *name, int size=16) : + sc_fifo_in_if<T>(), sc_fifo_out_if<T>(), + sc_prim_channel(name) + {} + virtual ~sc_fifo() {} + + virtual void + register_port(sc_port_base &, const char *) + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + } + + virtual void + read(T &) + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + } + virtual T + read() + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return *(T *)nullptr; + } + virtual bool + nb_read(T &) + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return false; + } + operator T() + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return *(T *)nullptr; + } + + virtual void + write(const T &) + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + } + virtual bool + nb_write(const T&) + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return false; + } + sc_fifo<T> & + operator = (const T &) + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return *this; + } + + virtual const sc_event & + data_Written_event() const + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return *(const sc_event *)nullptr; + } + virtual const sc_event & + data_read_event() const + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return *(const sc_event *)nullptr; + } + + virtual int + num_available() const + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return 0; + } + virtual int + num_free() const + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return 0; + } + + virtual void + print(std::ostream & =std::cout) const + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + } + virtual void + dump(std::ostream & =std::cout) const + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + } + virtual const char *kind() const { return "sc_fifo"; } + + protected: + virtual void + update() + { + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + } + + private: + // Disabled + sc_fifo(const sc_fifo<T> &) : + sc_fifo_in_if<T>(), sc_fifo_in_if<T>(), sc_prim_channel() + {} + sc_fifo &operator = (const sc_fifo<T> &) { return *this; } +}; + +template <class T> +inline std::ostream & +operator << (std::ostream &os, const sc_fifo<T> &) +{ + sc_channel_warn_unimpl(__PRETTY_FUNCTION__); + return os; +} + +} // namespace sc_core + +#endif //__SYSTEMC_EXT_CHANNEL_SC_FIFO_HH__ |