commit 6e814b0eb2b7d2fe852c36ab8e6ef49a5e343f45
author Bart Van Assche <bvanassche@google.com> Thu Feb 03 19:24:42 2022 +0000
committer Bart Van Assche <bvanassche@google.com> Tue Feb 15 00:09:34 2022 +0000
tree 1f086d53e33a06984044e118f97ed4e94d304020
parent 6856cfcb210ab2297e82c0077287c5a3a00d8df1

Make two error messages more detailed

Provide context information to make it easier to map error messages to
the source code that reported these error messages.

Bug: 213617178
Test: Booted Android in Cuttlefish and verified the error messages in logcat.
Change-Id: I22e6d91476d91dcf32bafe5ead922e5652136584
Signed-off-by: Bart Van Assche <bvanassche@google.com>

libprocessgroup/processgroup.cpp

diff --git a/libprocessgroup/processgroup.cpp b/libprocessgroup/processgroup.cpp
index cb2fe0a..8f7470e 100644
--- a/libprocessgroup/processgroup.cpp
+++ b/libprocessgroup/processgroup.cpp
@@ -211,7 +211,7 @@
     for (std::string cgroup_root_path : cgroups) {
         std::unique_ptr<DIR, decltype(&closedir)> root(opendir(cgroup_root_path.c_str()), closedir);
         if (root == NULL) {
-            PLOG(ERROR) << "Failed to open " << cgroup_root_path;
+            PLOG(ERROR) << __func__ << " failed to open " << cgroup_root_path;
         } else {
             dirent* dir;
             while ((dir = readdir(root.get())) != nullptr) {
@@ -297,7 +297,8 @@
             // This happens when process is already dead
             return 0;
         }
-        PLOG(WARNING) << "Failed to open process cgroup uid " << uid << " pid " << initialPid;
+        PLOG(WARNING) << __func__ << " failed to open process cgroup uid " << uid << " pid "
+                      << initialPid;
         return -1;
     }