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54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
#include <Common/ThreadFuzzer.h>
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#include <Functions/FunctionFactory.h>
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#include <DataTypes/DataTypesNumber.h>
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#include <Core/Field.h>
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namespace DB
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{
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namespace
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{
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/** Returns whether Thread Fuzzer is effective.
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* It can be used in tests to prevent too long runs.
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*/
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class FunctionHasThreadFuzzer : public IFunction
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{
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public:
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static constexpr auto name = "hasThreadFuzzer";
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static FunctionPtr create(ContextPtr)
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{
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return std::make_shared<FunctionHasThreadFuzzer>();
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}
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String getName() const override
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{
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return name;
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}
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size_t getNumberOfArguments() const override
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{
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return 0;
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}
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DataTypePtr getReturnTypeImpl(const DataTypes & /*arguments*/) const override
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{
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return std::make_shared<DataTypeUInt8>();
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}
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ColumnPtr executeImpl(const ColumnsWithTypeAndName &, const DataTypePtr &, size_t input_rows_count) const override
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{
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return DataTypeUInt8().createColumnConst(input_rows_count, ThreadFuzzer::instance().isEffective());
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}
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};
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}
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void registerFunctionHasThreadFuzzer(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionHasThreadFuzzer>();
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}
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}
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