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Diffstat (limited to 'src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_resize.h')
-rw-r--r-- | src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_resize.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_resize.h b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_resize.h new file mode 100644 index 000000000..39932fea1 --- /dev/null +++ b/src/systemc/ext/tlm_core/tlm_1/tlm_req_rsp/tlm_channels/tlm_fifo/tlm_fifo_resize.h @@ -0,0 +1,93 @@ +/***************************************************************************** + + 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 |