From: Michael Tremer <michael.tremer@ipfire.org>
Date: Tue, 10 Dec 2024 15:27:26 +0000 (+0000)
Subject: cgroups: Store the path to the cgroup
X-Git-Tag: 0.9.30~730
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9760be9975f45f48343c274190f2ccb28448b35c;p=pakfire.git

cgroups: Store the path to the cgroup

This is only used for debugging.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/cgroup.c b/src/libpakfire/cgroup.c
index 45941a677..5b4900973 100644
--- a/src/libpakfire/cgroup.c
+++ b/src/libpakfire/cgroup.c
@@ -67,8 +67,9 @@ struct pakfire_cgroup {
 	// Flags
 	int flags;
 
-	// Store the name
-	char name[PATH_MAX];
+	// Store the name & path
+	char name[NAME_MAX];
+	char path[PATH_MAX];
 
 	// File descriptor to cgroup
 	int fd;
@@ -84,6 +85,13 @@ static const char* pakfire_cgroup_name(struct pakfire_cgroup* cgroup) {
 	return cgroup->name;
 }
 
+static const char* pakfire_cgroup_path(struct pakfire_cgroup* cgroup) {
+	if (!*cgroup->path)
+		return "(root)";
+
+	return cgroup->path;
+}
+
 static int pakfire_cgroup_setup_devices(struct pakfire_cgroup* cgroup) {
 	static char bpf_log_buffer[BPF_LOG_BUF_SIZE];
 
@@ -331,6 +339,13 @@ static int pakfire_cgroup_open(struct pakfire_cgroup** cgroup,
 	if (r < 0)
 		goto ERROR;
 
+	// Store path
+	if (c->parent) {
+		r = pakfire_path_append(c->path, c->parent->path, c->name);
+		if (r < 0)
+			goto ERROR;
+	}
+
 	// Copy flags
 	c->flags = flags;
 
@@ -351,6 +366,8 @@ static int pakfire_cgroup_open(struct pakfire_cgroup** cgroup,
 		goto ERROR;
 #endif
 
+	DEBUG(c->ctx, "Created cgroup %s\n", pakfire_cgroup_path(c));
+
 	// Return the pointer
 	*cgroup = pakfire_cgroup_ref(c);