| /***************************************************************************** |
| |
| 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_RESIZE_H__ |
| #define __TLM_FIFO_RESIZE_H__ |
| |
| /****************************************************************** |
| // |
| // resize interface |
| // |
| ******************************************************************/ |
| |
| namespace tlm { |
| |
| template < typename T> |
| inline |
| void |
| tlm_fifo<T>::nb_expand( unsigned int n ) { |
| |
| if( m_size >= 0 ) { |
| m_expand = true; |
| m_size += n; |
| request_update(); |
| } |
| } |
| |
| template < typename T> |
| inline |
| void |
| tlm_fifo<T>::nb_unbound( unsigned int n ) { |
| |
| m_expand = true; |
| m_size = -n; |
| |
| if( buffer.size() < static_cast<int>( n ) ) { |
| buffer.resize( n ); |
| } |
| |
| request_update(); |
| |
| } |
| |
| template < typename T> |
| inline |
| bool |
| tlm_fifo<T>::nb_reduce( unsigned int n ) { |
| |
| if( m_size < 0 ) { |
| return false; |
| } |
| |
| return nb_bound( size() - n ); |
| |
| } |
| |
| template < typename T> |
| inline |
| bool |
| tlm_fifo<T>::nb_bound( unsigned int new_size ) { |
| |
| bool ret = true; |
| |
| if( static_cast<int>( new_size ) < used() ) { |
| |
| new_size = used(); |
| ret = false; |
| |
| } |
| |
| m_size = new_size; |
| return ret; |
| |
| } |
| |
| } // namespace tlm |
| |
| #endif |