1 files changed, 45 insertions, 0 deletions
diff --git a/src/cpp/server/load_reporter/get_cpu_stats_macos.cc b/src/cpp/server/load_reporter/get_cpu_stats_macos.cc
new file mode 100644
index 0000000000..dbdde304c2
--- /dev/null
+++ b/src/cpp/server/load_reporter/get_cpu_stats_macos.cc
@@ -0,0 +1,45 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * 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 <grpc/support/port_platform.h>
+
+#ifdef GPR_APPLE
+
+#include <mach/mach.h>
+
+#include "src/cpp/server/load_reporter/get_cpu_stats.h"
+
+namespace grpc {
+namespace load_reporter {
+
+std::pair<uint64_t, uint64_t> GetCpuStatsImpl() {
+  uint64_t busy = 0, total = 0;
+  host_cpu_load_info_data_t cpuinfo;
+  mach_msg_type_number_t count = HOST_CPU_LOAD_INFO_COUNT;
+  if (host_statistics(mach_host_self(), HOST_CPU_LOAD_INFO,
+                      (host_info_t)&cpuinfo, &count) == KERN_SUCCESS) {
+    for (int i = 0; i < CPU_STATE_MAX; i++) total += cpuinfo.cpu_ticks[i];
+    busy = total - cpuinfo.cpu_ticks[CPU_STATE_IDLE];
+  }
+  return std::make_pair(busy, total);
+}
+
+}  // namespace load_reporter
+}  // namespace grpc
+
+#endif  // GPR_APPLE