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36 lines
604 B
C++
36 lines
604 B
C++
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#pragma once
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#include <cstddef>
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namespace DB
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{
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/** Struct containing a pipe with lazy initialization.
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* Use `open` and `close` methods to manipulate pipe and `fds_rw` field to access
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* pipe's file descriptors.
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*/
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struct LazyPipeFDs
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{
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int fds_rw[2] = {-1, -1};
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void open();
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void close();
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void setNonBlocking();
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void tryIncreaseSize(int desired_size);
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~LazyPipeFDs();
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};
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/** Struct which opens new pipe on creation and closes it on destruction.
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* Use `fds_rw` field to access pipe's file descriptors.
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*/
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struct PipeFDs : public LazyPipeFDs
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{
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PipeFDs();
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};
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}
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