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diff --git a/node_modules/node-pty/deps/winpty/src/shared/TimeMeasurement.h b/node_modules/node-pty/deps/winpty/src/shared/TimeMeasurement.h
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+// Copyright (c) 2015 Ryan Prichard
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+
+// Convenience header library for using the high-resolution performance counter
+// to measure how long some process takes.
+
+#ifndef TIME_MEASUREMENT_H
+#define TIME_MEASUREMENT_H
+
+#include <windows.h>
+#include <assert.h>
+#include <stdint.h>
+
+class TimeMeasurement {
+public:
+    TimeMeasurement() {
+        static double freq = static_cast<double>(getFrequency());
+        m_freq = freq;
+        m_start = value();
+    }
+
+    double elapsed() {
+        uint64_t elapsedTicks = value() - m_start;
+        return static_cast<double>(elapsedTicks) / m_freq;
+    }
+
+private:
+    uint64_t getFrequency() {
+        LARGE_INTEGER freq;
+        BOOL success = QueryPerformanceFrequency(&freq);
+        assert(success && "QueryPerformanceFrequency failed");
+        return freq.QuadPart;
+    }
+
+    uint64_t value() {
+        LARGE_INTEGER ret;
+        BOOL success = QueryPerformanceCounter(&ret);
+        assert(success && "QueryPerformanceCounter failed");
+        return ret.QuadPart;
+    }
+
+    uint64_t m_start;
+    double m_freq;
+};
+
+#endif // TIME_MEASUREMENT_H