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Copy pathcontroller.cpp
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52 lines (41 loc) · 1.49 KB
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#include "ru/controller.h"
#include <chrono>
#include<thread>
#include "common/utility.h"
namespace lseb {
Controller::Controller(
Generator const& generator,
MetaDataRange const& metadata_range,
size_t generator_frequency)
:
m_generator(generator),
m_metadata_range(metadata_range),
m_current_metadata(std::begin(m_metadata_range)),
m_start_time(std::chrono::high_resolution_clock::now()),
m_generator_frequency(generator_frequency),
m_generated_events(0) {
}
MetaDataRange Controller::read() {
double const elapsed_seconds = std::chrono::duration<double>(
std::chrono::high_resolution_clock::now() - m_start_time).count();
std::this_thread::sleep_for(
std::chrono::microseconds(std::mega::num / m_generator_frequency));
size_t const events_to_generate = elapsed_seconds * m_generator_frequency;
assert(events_to_generate >= m_generated_events);
size_t const current_generated_events = m_generator.generateEvents(
events_to_generate - m_generated_events);
auto previous_metadata = m_current_metadata;
m_current_metadata = advance_in_range(
m_current_metadata,
current_generated_events,
m_metadata_range);
m_generated_events += current_generated_events;
return MetaDataRange(previous_metadata, m_current_metadata);
}
void Controller::release(MetaDataRange metadata_range) {
size_t const events_to_release = distance_in_range(
metadata_range,
m_metadata_range);
m_generator.releaseEvents(events_to_release);
}
}