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https://github.com/ClickHouse/ClickHouse.git
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495c6e03aa
* Replace all Context references with std::weak_ptr * Fix shared context captured by value * Fix build * Fix Context with named sessions * Fix copy context * Fix gcc build * Merge with master and fix build * Fix gcc-9 build
30 lines
560 B
C++
30 lines
560 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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#include <Common/Stopwatch.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_);
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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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BackgroundSchedulePool & pool;
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BackgroundSchedulePoolTaskHolder task_handle;
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};
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}
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