58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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Copyright (c) 2005-2017 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef __TBB_flow_graph_abstractions_H
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#define __TBB_flow_graph_abstractions_H
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namespace tbb {
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namespace flow {
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namespace interface9 {
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//! Pure virtual template classes that define interfaces for async communication
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class graph_proxy {
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public:
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//! Inform a graph that messages may come from outside, to prevent premature graph completion
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virtual void reserve_wait() = 0;
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//! Inform a graph that a previous call to reserve_wait is no longer in effect
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virtual void release_wait() = 0;
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virtual ~graph_proxy() {}
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};
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template <typename Input>
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class receiver_gateway : public graph_proxy {
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public:
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//! Type of inputing data into FG.
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typedef Input input_type;
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//! Submit signal from an asynchronous activity to FG.
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virtual bool try_put(const input_type&) = 0;
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};
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} //interface9
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using interface9::graph_proxy;
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using interface9::receiver_gateway;
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} //flow
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} //tbb
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#endif
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