Introduce the timed events

1 files changed, 55 insertions, 0 deletions

diff --git a/src/utils/timed_events_manager.cpp b/src/utils/timed_events_manager.cpp
new file mode 100644
index 0000000..c3e260c
--- /dev/null
+++ b/src/utils/timed_events_manager.cpp
@@ -0,0 +1,55 @@
+#include <utils/timed_events.hpp>
+
+TimedEventsManager::TimedEventsManager()
+{
+}
+
+TimedEventsManager::~TimedEventsManager()
+{
+}
+
+void TimedEventsManager::add_event(TimedEvent&& event)
+{
+  for (auto it = this->events.begin(); it != this->events.end(); ++it)
+    {
+      if (it->is_after(event))
+        {
+          this->events.emplace(it, std::move(event));
+          return;
+        }
+    }
+  this->events.emplace_back(std::move(event));
+}
+
+std::chrono::milliseconds TimedEventsManager::get_timeout() const
+{
+  if (this->events.empty())
+    return utils::no_timeout;
+  return this->events.front().get_timeout() + std::chrono::milliseconds(1);
+}
+
+std::size_t TimedEventsManager::execute_expired_events()
+{
+  std::size_t count = 0;
+  const auto now = std::chrono::steady_clock::now();
+  for (auto it = this->events.begin(); it != this->events.end();)
+    {
+      if (!it->is_after(now))
+        {
+          TimedEvent copy(std::move(*it));
+          it = this->events.erase(it);
+          ++count;
+          copy.execute();
+          if (copy.repeat)
+            {
+              copy.time_point += copy.repeat_delay;
+              this->add_event(std::move(copy));
+            }
+          continue;
+        }
+      else
+        break;
+    }
+  return count;
+}
+