1 files changed, 96 insertions, 0 deletions
diff --git a/longbow/src/LongBow/longBow_MeasureTime.c b/longbow/src/LongBow/longBow_MeasureTime.c
new file mode 100755
index 00000000..2fc566a5
--- /dev/null
+++ b/longbow/src/LongBow/longBow_MeasureTime.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * 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 <config.h>
+#include <stdio.h>
+#include <sys/time.h>
+
+#include <LongBow/longBow_MeasureTime.h>
+#include <LongBow/private/longBow_Memory.h>
+
+struct longBowMeasureTime {
+    struct timeval start;
+    struct timeval stop;
+    unsigned int iterations;
+};
+
+LongBowMeasureTime *
+longBowMeasureTime_Start(unsigned int iterations)
+{
+    LongBowMeasureTime *result = longBowMemory_Allocate(sizeof(LongBowMeasureTime));
+
+    if (result != NULL) {
+        gettimeofday(&result->start, NULL);
+        result->iterations = iterations;
+        result->stop = (struct timeval) { .tv_sec = 0, .tv_usec = 0 };
+    }
+
+    return result;
+}
+
+LongBowMeasureTime *
+longBowMeasureTime_Stop(LongBowMeasureTime *measure)
+{
+    if (measure != NULL) {
+        gettimeofday(&measure->stop, NULL);
+    }
+
+    return measure;
+}
+
+uint64_t
+longBowMeasureTime_GetMicroseconds(const LongBowMeasureTime *measure)
+{
+    struct timeval result;
+    timersub(&(measure->stop), &(measure->start), &result);
+
+    return ((uint64_t) result.tv_sec * 1000000ULL) + ((uint64_t) result.tv_usec);
+}
+
+uint64_t
+longBowMeasureTime_GetNanoseconds(const LongBowMeasureTime *measure)
+{
+    struct timeval result;
+    timersub(&(measure->stop), &(measure->start), &result);
+
+    return ((uint64_t) result.tv_sec * 1000000000ULL) + ((uint64_t) result.tv_usec * 1000);
+}
+
+unsigned int
+longBowMeasureTime_CountDown(LongBowMeasureTime *measure)
+{
+    return measure->iterations--;
+}
+
+bool
+longBowMeasureTime_Report(LongBowMeasureTime *measure, const char *file, const char *function, unsigned int line)
+{
+    struct timeval result;
+    if (measure->stop.tv_sec == 0 && measure->stop.tv_usec == 0) {
+        longBowMeasureTime_Stop(measure);
+    }
+
+    timersub(&(measure->stop), &(measure->start), &result);
+    printf("%s %s %d %ld.%06ld\n", file, function, line, result.tv_sec, (long) result.tv_usec);
+    return true;
+}
+
+void
+longBowMeasureTime_Destroy(LongBowMeasureTime **instancePtr)
+{
+    longBowMemory_Deallocate((void **) instancePtr);
+}