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/*
*
*/
#pragma once
#include <variant>
#include <future>
#include "framework/util/Configuration.h"
namespace de {
enum class TaskType {
MERGE,
QUERY
};
struct TaskDependency {
std::promise<void> prom;
std::future<void> fut;
};
struct MergeTask {
level_index m_source_level;
level_index m_target_level;
size_t m_timestamp;
size_t m_size;
TaskType m_type;
std::unique_ptr<TaskDependency> m_dep;
MergeTask() = default;
MergeTask(level_index source, level_index target, size_t size, size_t timestamp)
: m_source_level(source)
, m_target_level(target)
, m_timestamp(timestamp)
, m_size(size)
, m_type(TaskType::MERGE)
, m_dep(std::make_unique<TaskDependency>()){}
MergeTask(MergeTask &t)
: m_source_level(t.m_source_level)
, m_target_level(t.m_target_level)
, m_timestamp(t.m_timestamp)
, m_size(t.m_size)
, m_type(TaskType::MERGE)
, m_dep(std::move(t.m_dep))
{}
TaskType get_type() const {
return m_type;
}
void make_dependent_on(MergeTask &task) {
m_dep->fut = task.m_dep->prom.get_future();
}
void make_dependent_on(TaskDependency *dep) {
m_dep->fut = dep->prom.get_future();
}
friend bool operator<(const MergeTask &self, const MergeTask &other) {
return self.m_timestamp < other.m_timestamp;
}
friend bool operator>(const MergeTask &self, const MergeTask &other) {
return self.m_timestamp > other.m_timestamp;
}
};
struct QueryTask {
size_t m_timestamp;
size_t m_size;
TaskType m_type;
std::unique_ptr<TaskDependency> m_dep;
QueryTask(QueryTask &t)
: m_timestamp(t.m_timestamp)
, m_size(t.m_size)
, m_type(t.m_type)
, m_dep(std::move(t.m_dep))
{}
TaskType get_type() const {
return m_type;
}
void SetDependency(QueryTask &task) {
m_dep->fut = task.m_dep->prom.get_future();
}
void SetDependency(TaskDependency *dep) {
m_dep->fut = dep->prom.get_future();
}
friend bool operator<(const QueryTask &self, const QueryTask &other) {
return self.m_timestamp < other.m_timestamp;
}
friend bool operator>(const QueryTask &self, const QueryTask &other) {
return self.m_timestamp > other.m_timestamp;
}
};
struct GetTaskType {
TaskType operator()(const MergeTask &t) { return t.get_type(); }
TaskType operator()(const QueryTask &t) { return t.get_type(); }
};
typedef std::variant<MergeTask, QueryTask> Task;
}
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