Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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base/cancellable.cpp

@@ -0,0 +1,62 @@
+#include "base/cancellable.hpp"
+
+#include "base/assert.hpp"
+
+namespace base
+{
+void Cancellable::Reset()
+{
+  std::lock_guard lock(m_mutex);
+
+  m_status = Status::Active;
+  m_deadline = {};
+}
+
+void Cancellable::Cancel()
+{
+  std::lock_guard lock(m_mutex);
+
+  m_status = Status::CancelCalled;
+}
+
+void Cancellable::SetDeadline(std::chrono::steady_clock::time_point const & deadline)
+{
+  std::lock_guard lock(m_mutex);
+
+  m_deadline = deadline;
+  CheckDeadline();
+}
+
+bool Cancellable::IsCancelled() const
+{
+  return CancellationStatus() != Status::Active;
+}
+
+Cancellable::Status Cancellable::CancellationStatus() const
+{
+  std::lock_guard lock(m_mutex);
+
+  CheckDeadline();
+  return m_status;
+}
+
+void Cancellable::CheckDeadline() const
+{
+  if (m_status == Status::Active &&
+      m_deadline && *m_deadline < std::chrono::steady_clock::now())
+  {
+    m_status = Status::DeadlineExceeded;
+  }
+}
+
+std::string DebugPrint(Cancellable::Status status)
+{
+  switch (status)
+  {
+  case Cancellable::Status::Active: return "Active";
+  case Cancellable::Status::CancelCalled: return "CancelCalled";
+  case Cancellable::Status::DeadlineExceeded: return "DeadlineExceeded";
+  }
+  UNREACHABLE();
+}
+}  // namespace base