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78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/*
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The MIT License (MIT)
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Copyright (c) 2013-2014 winlin
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SRS_APP_PIPE_HPP
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#define SRS_APP_PIPE_HPP
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/*
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#include <srs_app_pipe.hpp>
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*/
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#include <srs_core.hpp>
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#include <srs_app_st.hpp>
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/**
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* convert something to io,
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* for example, signal or SrsConsumer event.
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* for performance issue, @see: https://github.com/winlinvip/simple-rtmp-server/issues/194
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*/
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class SrsPipe
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{
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private:
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int fds[2];
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st_netfd_t read_stfd;
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st_netfd_t write_stfd;
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/**
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* for the event based service,
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* for example, the consumer only care whether there is data writen in pipe,
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* and the source will not write to pipe when pipe is already writen.
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*/
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bool _already_written;
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public:
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SrsPipe();
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virtual ~SrsPipe();
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public:
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/**
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* initialize pipes, open fds.
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*/
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virtual int initialize();
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public:
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/**
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* for event based service, whether already writen data.
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*/
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virtual bool already_written();
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/**
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* for event based service,
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* write an int to pipe and set the pipe to active.
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*/
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virtual int active();
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/**
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* for event based service,
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* read an int from pipe and reset the pipe to deactive.
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*/
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virtual int reset();
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};
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#endif
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