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Diffstat (limited to 'src/systemc/tests/systemc/communication/sc_fifo/test04/test04.cpp')
-rw-r--r-- | src/systemc/tests/systemc/communication/sc_fifo/test04/test04.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/communication/sc_fifo/test04/test04.cpp b/src/systemc/tests/systemc/communication/sc_fifo/test04/test04.cpp new file mode 100644 index 000000000..be6ee57c5 --- /dev/null +++ b/src/systemc/tests/systemc/communication/sc_fifo/test04/test04.cpp @@ -0,0 +1,145 @@ +/***************************************************************************** + + Licensed to Accellera Systems Initiative Inc. (Accellera) under one or + more contributor license agreements. See the NOTICE file distributed + with this work for additional information regarding copyright ownership. + Accellera licenses this file to you under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with the + License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied. See the License for the specific language governing + permissions and limitations under the License. + + *****************************************************************************/ + +/***************************************************************************** + + test04.cpp -- + + Original Author: Martin Janssen, Synopsys, Inc., 2002-03-23 + + *****************************************************************************/ + +/***************************************************************************** + + MODIFICATION LOG - modifiers, enter your name, affiliation, date and + changes you are making here. + + Name, Affiliation, Date: + Description of Modification: + + *****************************************************************************/ + +// test of sc_fifo events + +#include "systemc.h" + +#define W_INFO(msg) \ + cout << sc_time_stamp() << "," << sc_delta_count() \ + << ": writer: " << msg << endl; + +#define R_INFO(msg) \ + cout << sc_time_stamp() << "," << sc_delta_count() \ + << ": reader: " << msg << endl; + +SC_MODULE( writer ) +{ + // port(s) + sc_fifo_out<int> out; + + // process(es) + void main_action() + { + int val = 0; + while( true ) { + wait( 10, SC_NS ); // wait for 10 ns + W_INFO( "blocking write" ); + for( int i = 0; i < 20; i ++ ) { + out.write( val ++ ); // blocking write + } + wait( 10, SC_NS ); + W_INFO( out.num_free() << " free spaces" ); + W_INFO( "non-blocking write" ); + for( int i = 0; i < 20; i ++ ) { + while( ! out.nb_write( val ++ ) ) { // non-blocking write + W_INFO( "waiting" ); + wait( out.data_read_event() ); + W_INFO( "data read event" ); + } + } + } + } + + SC_CTOR( writer ) + { + SC_THREAD( main_action ); + } +}; + +SC_MODULE( reader ) +{ + // port(s) + sc_fifo_in<int> in; + + // process(es) + void main_action() + { + int val; + while( true ) { + wait( 10, SC_NS ); // wait for 10 ns + R_INFO( "blocking read 1" ); + for( int i = 0; i < 15; i ++ ) { + in.read( val ); // blocking read + R_INFO( val ); + } + wait( 10, SC_NS ); + R_INFO( in.num_available() << " available samples" ); + R_INFO( "blocking read 2" ); + for( int i = 0; i < 15; i ++ ) { + val = in.read(); // blocking read + R_INFO( val ); + } + wait( 10, SC_NS ); + R_INFO( in.num_available() << " available samples" ); + R_INFO( "non-blocking read" ); + for( int i = 0; i < 15; i ++ ) { + while( ! in.nb_read( val ) ) { // non-blocking read + R_INFO( "waiting" ); + wait( in.data_written_event() ); + R_INFO( "data written event" ); + } + R_INFO( val ); + } + } + } + + SC_CTOR( reader ) + { + SC_THREAD( main_action ); + } +}; + +int sc_main( int, char*[] ) +{ + // sc_clock c; + + // declare channel(s) + sc_fifo<int> fifo( 10 ); + + // instantiate block(s) and connect to channel(s) + writer w( "writer" ); + reader r( "reader" ); + + w.out( fifo ); + r.in( fifo ); + + // run the simulation + sc_start( 100, SC_NS ); + + return 0; +} |