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/*
* include/framework/scheduling/SerialScheduler.h
*
* Copyright (C) 2023-2024 Douglas B. Rumbaugh <drumbaugh@psu.edu>
*
* Distributed under the Modified BSD License.
*
* IMPORTANT: This "scheduler" is a shim implementation for allowing
* strictly serial, single-threaded operation of the framework. It should
* never be used in multi-threaded contexts. A call to the schedule_job
* function will immediately run the job and block on its completion before
* returning.
*
*/
#pragma once
#include "framework/scheduling/Task.h"
#include "framework/scheduling/statistics.h"
namespace de {
class SerialScheduler {
public:
SerialScheduler(size_t memory_budget, size_t thread_cnt)
: m_memory_budget((memory_budget) ? memory_budget : UINT64_MAX),
m_thrd_cnt((thread_cnt) ? thread_cnt : UINT64_MAX), m_used_memory(0),
m_used_thrds(0), m_counter(0) {}
~SerialScheduler() = default;
void schedule_job(std::function<void(void *)> job, size_t size, void *args,
size_t type = 0) {
size_t ts = m_counter++;
m_stats.job_queued(ts, type, size);
m_stats.job_scheduled(ts);
auto t = Task(size, ts, job, args, type, &m_stats);
t(0);
}
void shutdown() { /* intentionally left blank */
}
void print_statistics() { m_stats.print_statistics(); }
void print_query_time_data() { m_stats.print_query_time_data(); }
private:
[[maybe_unused]] size_t m_memory_budget;
[[maybe_unused]] size_t m_thrd_cnt;
[[maybe_unused]] size_t m_used_memory;
[[maybe_unused]] size_t m_used_thrds;
size_t m_counter;
SchedulerStatistics m_stats;
};
} // namespace de
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