1 files changed, 98 insertions, 0 deletions
diff --git a/libfreerdp/utils/stopwatch.c b/libfreerdp/utils/stopwatch.c
new file mode 100644
index 0000000..3989638
--- /dev/null
+++ b/libfreerdp/utils/stopwatch.c
@@ -0,0 +1,98 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * Stopwatch Utils
+ *
+ * Copyright 2011 Stephen Erisman
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <freerdp/config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <freerdp/utils/stopwatch.h>
+
+#ifdef _WIN32
+LARGE_INTEGER stopwatch_freq = { 0 };
+#else
+#include <sys/time.h>
+#endif
+
+static void stopwatch_set_time(UINT64* usecs)
+{
+#ifdef _WIN32
+	LARGE_INTEGER perfcount;
+	QueryPerformanceCounter(&perfcount);
+	*usecs = (perfcount.QuadPart * 1000000) / stopwatch_freq.QuadPart;
+#else
+	struct timeval tv;
+	gettimeofday(&tv, NULL);
+	*usecs = tv.tv_sec * 1000000 + tv.tv_usec;
+#endif
+}
+
+STOPWATCH* stopwatch_create(void)
+{
+	STOPWATCH* sw = NULL;
+#ifdef _WIN32
+	if (stopwatch_freq.QuadPart == 0)
+	{
+		QueryPerformanceFrequency(&stopwatch_freq);
+	}
+#endif
+
+	sw = (STOPWATCH*)malloc(sizeof(STOPWATCH));
+	if (!sw)
+		return NULL;
+	stopwatch_reset(sw);
+
+	return sw;
+}
+
+void stopwatch_free(STOPWATCH* stopwatch)
+{
+	free(stopwatch);
+}
+
+void stopwatch_start(STOPWATCH* stopwatch)
+{
+	stopwatch_set_time(&stopwatch->start);
+	stopwatch->count++;
+}
+
+void stopwatch_stop(STOPWATCH* stopwatch)
+{
+	stopwatch_set_time(&stopwatch->end);
+	stopwatch->elapsed += (stopwatch->end - stopwatch->start);
+}
+
+void stopwatch_reset(STOPWATCH* stopwatch)
+{
+	stopwatch->start = 0;
+	stopwatch->end = 0;
+	stopwatch->elapsed = 0;
+	stopwatch->count = 0;
+}
+
+double stopwatch_get_elapsed_time_in_seconds(STOPWATCH* stopwatch)
+{
+	return (stopwatch->elapsed / 1000000.0);
+}
+
+void stopwatch_get_elapsed_time_in_useconds(STOPWATCH* stopwatch, UINT32* sec, UINT32* usec)
+{
+	*sec = (UINT32)stopwatch->elapsed / 1000000;
+	*usec = (UINT32)stopwatch->elapsed % 1000000;
+}