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Copy pathconfiguration.h
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84 lines (68 loc) · 2.71 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#pragma once
#include <memory>
#include <string>
#include "arrow/status.h"
#include "gandiva/visibility.h"
namespace gandiva {
class ConfigurationBuilder;
/// \brief runtime config for gandiva
///
/// It contains elements to customize gandiva execution
/// at run time.
class GANDIVA_EXPORT Configuration {
public:
friend class ConfigurationBuilder;
Configuration() : optimize_(true), target_host_cpu_(true) {}
explicit Configuration(bool optimize) : optimize_(optimize), target_host_cpu_(true) {}
std::size_t Hash() const;
bool operator==(const Configuration& other) const;
bool operator!=(const Configuration& other) const;
bool optimize() const { return optimize_; }
bool target_host_cpu() const { return target_host_cpu_; }
void set_optimize(bool optimize) { optimize_ = optimize; }
void target_host_cpu(bool target_host_cpu) { target_host_cpu_ = target_host_cpu; }
private:
bool optimize_; /* optimise the generated llvm IR */
bool target_host_cpu_; /* set the mcpu flag to host cpu while compiling llvm ir */
};
/// \brief configuration builder for gandiva
///
/// Provides a default configuration and convenience methods
/// to override specific values and build a custom instance
class GANDIVA_EXPORT ConfigurationBuilder {
public:
std::shared_ptr<Configuration> build() {
std::shared_ptr<Configuration> configuration(new Configuration());
return configuration;
}
std::shared_ptr<Configuration> build(bool optimize) {
std::shared_ptr<Configuration> configuration(new Configuration(optimize));
return configuration;
}
static std::shared_ptr<Configuration> DefaultConfiguration() {
return default_configuration_;
}
private:
static std::shared_ptr<Configuration> InitDefaultConfig() {
std::shared_ptr<Configuration> configuration(new Configuration());
return configuration;
}
static const std::shared_ptr<Configuration> default_configuration_;
};
} // namespace gandiva