1 files changed, 98 insertions, 0 deletions
diff --git a/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_peek.h b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_peek.h
new file mode 100644
index 000000000..e856c5657
--- /dev/null
+++ b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_peek.h
@@ -0,0 +1,98 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+#ifndef __TLM_FIFO_PEEK_H__
+#define __TLM_FIFO_PEEK_H__
+
+namespace tlm {
+
+template < typename T>
+inline
+T
+tlm_fifo<T>::peek( tlm_tag<T> * ) const {
+
+  while( is_empty() ) {
+
+    // call free-standing sc_core::wait(),
+    // since sc_prim_channel::wait(.) is not const
+
+    sc_core::wait( m_data_written_event );
+  }
+
+  return buffer.read_data();
+
+}
+
+template < typename T>
+inline
+bool
+tlm_fifo<T>::nb_peek( T &t ) const {
+
+  if( used() < 1 ) {
+    return false;
+  }
+
+  t = buffer.peek_data( 0 );
+  return true;
+
+}
+
+template < typename T>
+inline
+bool
+tlm_fifo<T>::nb_peek( T &t , int n ) const {
+
+  if( n >= used() || n < -1 ) {
+    return false;
+  }
+
+  if( n == -1 ) {
+    n = used() - 1;
+  }
+
+  t = buffer.peek_data( n );
+  return true;
+
+}
+
+template< typename T >
+inline
+bool
+tlm_fifo<T>::nb_can_peek( tlm_tag<T> * ) const
+{
+  return !is_empty();
+}
+
+template < typename T>
+inline
+bool
+tlm_fifo<T>::nb_poke( const T &t , int n ) {
+
+  if( n >= used() || n < 0 ) {
+    return false;
+  }
+
+  buffer.poke_data( n ) = t;
+  return true;
+
+}
+
+} // namespace tlm
+
+#endif