basesystem 0.1sandbox/ToshikazuOhiwa/basesystem

1 files changed, 56 insertions, 0 deletions

diff --git a/otherservice/posix_based_os001_legacy_library/library/src/PosixBasedOS001ClockCycleApi.c b/otherservice/posix_based_os001_legacy_library/library/src/PosixBasedOS001ClockCycleApi.c
new file mode 100644
index 00000000..b4e73c57
--- /dev/null
+++ b/otherservice/posix_based_os001_legacy_library/library/src/PosixBasedOS001ClockCycleApi.c
@@ -0,0 +1,56 @@
+/*
+ * @copyright Copyright (c) 2016-2020 TOYOTA MOTOR CORPORATION.
+ *
+ * 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 <other_service/PosixBasedOS001ClockCycleApi.h>
+#include <time.h>
+
+/******************************************************************************/
+/*
+Overview	:GetTickCount() like Win32 API
+Arguments	:void
+Return		:OK:usec  NG:0
+Note		:
+*/
+static uint64_t GetTickCount(void )
+{
+	struct timespec tp;
+	/*--------------------------------------------------------------------*/
+
+	if(clock_gettime(CLOCK_MONOTONIC, &tp) != 0)  // LCOV_EXCL_BR_LINE 5: fail safe for libc clock_gettime
+	{
+		return 0;
+	}
+
+	return (uint64_t)(tp.tv_sec * 1000000 + tp.tv_nsec / 1000);
+}
+
+
+/******************************************************************************/
+/*
+Overview	:Get the number of clock cycles
+Arguments	:void
+Return		:OK:usec  NG:0
+Note		:
+*/
+uint64_t ClockCycle( void )
+{
+	return GetTickCount();
+}
+
+/******************************************************************************/
+/* End of souce code.*/
+/******************************************************************************/
+