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ixwebsocket/IXCancellationRequest.cpp

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+/*
+ *  IXCancellationRequest.cpp
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2019 Machine Zone, Inc. All rights reserved.
+ */
+
+#include "IXCancellationRequest.h"
+
+#include <cassert>
+#include <chrono>
+
+namespace ix
+{
+CancellationRequest makeCancellationRequestWithTimeout(
+    int secs,
+    std::atomic<bool> &requestInitCancellation)
+{
+    assert(secs > 0);
+
+    auto start = std::chrono::system_clock::now();
+    auto timeout = std::chrono::seconds(secs);
+
+    auto isCancellationRequested =
+        [&requestInitCancellation, start, timeout]() -> bool {
+        // Was an explicit cancellation requested ?
+        if (requestInitCancellation)
+            return true;
+
+        auto now = std::chrono::system_clock::now();
+        if ((now - start) > timeout)
+            return true;
+
+        // No cancellation request
+        return false;
+    };
+
+    return isCancellationRequested;
+}
+} // namespace ix