| // |
| //------------------------------------------------------------------------------ |
| // Copyright 2007-2011 Mentor Graphics Corporation |
| // Copyright 2007-2010 Cadence Design Systems, Inc. |
| // Copyright 2010 Synopsys, Inc. |
| // All Rights Reserved Worldwide |
| // |
| // Licensed 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. |
| //------------------------------------------------------------------------------ |
| |
| //------------------------------------------------------------------------------ |
| // |
| // CLASS: uvm_subscriber |
| // |
| // This class provides an analysis export for receiving transactions from a |
| // connected analysis export. Making such a connection "subscribes" this |
| // component to any transactions emitted by the connected analysis port. |
| // |
| // Subtypes of this class must define the write method to process the incoming |
| // transactions. This class is particularly useful when designing a coverage |
| // collector that attaches to a monitor. |
| //------------------------------------------------------------------------------ |
| |
| virtual class uvm_subscriber #(type T=int) extends uvm_component; |
| |
| typedef uvm_subscriber #(T) this_type; |
| |
| // Port: analysis_export |
| // |
| // This export provides access to the write method, which derived subscribers |
| // must implement. |
| |
| uvm_analysis_imp #(T, this_type) analysis_export; |
| |
| // Function: new |
| // |
| // Creates and initializes an instance of this class using the normal |
| // constructor arguments for <uvm_component>: ~name~ is the name of the |
| // instance, and ~parent~ is the handle to the hierarchical parent, if any. |
| |
| function new (string name, uvm_component parent); |
| super.new(name, parent); |
| analysis_export = new("analysis_imp", this); |
| endfunction |
| |
| // Function: write |
| // |
| // A pure virtual method that must be defined in each subclass. Access |
| // to this method by outside components should be done via the |
| // analysis_export. |
| |
| pure virtual function void write(T t); |
| |
| endclass |
| |
