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24 lines
635 B
C++
24 lines
635 B
C++
#pragma once
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#include <IO/WriteBufferFromFileDescriptor.h>
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namespace DB
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{
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/** Write to file descriptor but drop the data if write would block or fail.
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* To use within signal handler. Motivating example: a signal handler invoked during execution of malloc
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* should not block because some mutex (or even worse - a spinlock) may be held.
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*/
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class WriteBufferFromFileDescriptorDiscardOnFailure : public WriteBufferFromFileDescriptor
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{
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protected:
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void nextImpl() override;
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public:
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using WriteBufferFromFileDescriptor::WriteBufferFromFileDescriptor;
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~WriteBufferFromFileDescriptorDiscardOnFailure() override {}
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};
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}
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