Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/libfreerdp/utils/profiler.c

@@ -0,0 +1,98 @@
+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * Profiler 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/profiler.h>
+#include <freerdp/log.h>
+
+#define TAG FREERDP_TAG("utils")
+
+struct S_PROFILER
+{
+	char* name;
+	STOPWATCH* stopwatch;
+};
+
+PROFILER* profiler_create(const char* name)
+{
+	PROFILER* profiler = (PROFILER*)calloc(1, sizeof(PROFILER));
+
+	if (!profiler)
+		return nullptr;
+
+	profiler->name = _strdup(name);
+	profiler->stopwatch = stopwatch_create();
+
+	if (!profiler->name || !profiler->stopwatch)
+		goto fail;
+
+	return profiler;
+fail:
+	profiler_free(profiler);
+	return nullptr;
+}
+
+void profiler_free(PROFILER* profiler)
+{
+	if (profiler)
+	{
+		free(profiler->name);
+		stopwatch_free(profiler->stopwatch);
+	}
+
+	free(profiler);
+}
+
+void profiler_enter(PROFILER* profiler)
+{
+	stopwatch_start(profiler->stopwatch);
+}
+
+void profiler_exit(PROFILER* profiler)
+{
+	stopwatch_stop(profiler->stopwatch);
+}
+
+void profiler_print_header(void)
+{
+	WLog_INFO(TAG,
+	          "-------------------------------+------------+-------------+-----------+-------");
+	WLog_INFO(TAG,
+	          "PROFILER NAME                  |      COUNT |       TOTAL |       AVG |    IPS");
+	WLog_INFO(TAG,
+	          "-------------------------------+------------+-------------+-----------+-------");
+}
+
+void profiler_print(PROFILER* profiler)
+{
+	double s = stopwatch_get_elapsed_time_in_seconds(profiler->stopwatch);
+	double avg = profiler->stopwatch->count == 0 ? 0 : s / profiler->stopwatch->count;
+	WLog_INFO(TAG, "%-30s | %10u | %10.4fs | %8.6fs | %6.0f", profiler->name,
+	          profiler->stopwatch->count, s, avg, profiler->stopwatch->count / s);
+}
+
+void profiler_print_footer(void)
+{
+	WLog_INFO(TAG,
+	          "-------------------------------+------------+-------------+-----------+-------");
+}