(mesos) branch master updated: [cgroups2] Introduce read() and write() utilities to read and write to cgroup controls.

[bmahler]

This is an automated email from the ASF dual-hosted git repository.

bmahler pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mesos.git


The following commit(s) were added to refs/heads/master by this push:
     new bd23c513d [cgroups2] Introduce read() and write() utilities to read 
and write to cgroup controls.
bd23c513d is described below

commit bd23c513d555fcb8f981f37c8cd5f97bd30eaacd
Author: Devin Leamy <dle...@x.com>
AuthorDate: Wed Feb 28 12:16:46 2024 -0500

    [cgroups2] Introduce read() and write() utilities to read and write to 
cgroup controls.
    
    Introduces:
    - `cgroups2::read()`: Read a control file to a string.
    - `cgroups2::write()`: Write a string to a control file.
    reading and writing primitives for controls.
    
    Review: https://reviews.apache.org/r/74874/
---
 src/linux/cgroups2.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/linux/cgroups2.cpp b/src/linux/cgroups2.cpp
index ec7ba9e40..0a1da2cb4 100644
--- a/src/linux/cgroups2.cpp
+++ b/src/linux/cgroups2.cpp
@@ -54,6 +54,29 @@ const std::string TYPE = "cgroup.type";
 
 } // namespace control {
 
+
+Try<string> read(const string& cgroup, const string& control)
+{
+  return os::read(path::join(
+    cgroups2::MOUNT_POINT,
+    cgroup,
+    control));
+}
+
+
+Try<Nothing> write(
+  const string& cgroup,
+  const string& control,
+  const string& value)
+{
+  return os::write(path::join(
+      cgroups2::MOUNT_POINT,
+      cgroup,
+      control
+    ), value);
+}
+
+
 bool enabled()
 {
   Try<bool> supported = mesos::internal::fs::supported(cgroups2::FILE_SYSTEM);