Add TotalRAM detection
Colin originally wrote this for the highmem pool:
https://android-review.googlesource.com/c/platform/build/soong/+/1168271
But while that's a larger change, this is useful to just be in the logs,
and for use in multiproduct_kati to better limit the number of
concurrent jobs.
Test: check soong.log on linux and mac
Change-Id: I0518d303a220d775f8d78dba9f660b2954e68e3e
diff --git a/ui/build/config_linux.go b/ui/build/config_linux.go
new file mode 100644
index 0000000..9e1bdc7
--- /dev/null
+++ b/ui/build/config_linux.go
@@ -0,0 +1,28 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// 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.
+
+package build
+
+import "syscall"
+
+func detectTotalRAM(ctx Context) uint64 {
+ var info syscall.Sysinfo_t
+ err := syscall.Sysinfo(&info)
+ if err != nil {
+ ctx.Printf("Failed to get system memory size: %s")
+ return 0
+ }
+ memBytes := uint64(info.Totalram) * uint64(info.Unit)
+ return memBytes
+}