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29 lines
599 B
C++
29 lines
599 B
C++
#pragma once
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#include <Core/BackgroundSchedulePool.h>
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#include <Interpreters/Context_fwd.h>
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namespace DB
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{
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/// Add a task to BackgroundProcessingPool that resolves all hosts and updates cache with constant period.
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class DNSCacheUpdater : WithContext
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{
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public:
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DNSCacheUpdater(ContextPtr context, Int32 update_period_seconds_, UInt32 max_consecutive_failures);
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~DNSCacheUpdater();
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void start();
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private:
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void run();
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Int32 update_period_seconds;
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UInt32 max_consecutive_failures;
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BackgroundSchedulePool & pool;
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BackgroundSchedulePoolTaskHolder task_handle;
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};
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}
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