cgroups_cpuacct plugin: Read file line-by-line.

Use the field name from the file as type instance when dispatching values.

diff --git a/src/cgroups_cpuacct.c b/src/cgroups_cpuacct.c
index 3e3c054..f450389 100644 (file)
--- a/src/cgroups_cpuacct.c
+++ b/src/cgroups_cpuacct.c
@@ -66,11 +66,7 @@ static int read_cpuacct_procs (const char *dirname, char const *cgroup_name,
        char buf[1024];
        int status;
 
-       char *fields[8];
-       int numfields = 0;
-
-       value_t usertime;
-       value_t systemtime;
+       FILE *fh;
 
        if (ignorelist_match (il_cgroup, cgroup_name))
                return (0);
@@ -80,7 +76,8 @@ static int read_cpuacct_procs (const char *dirname, char const *cgroup_name,
        status = lstat (abs_path, &statbuf);
        if (status != 0)
        {
-               ERROR ("cgroups_cpuacct plugin: stat (%s) failed.", abs_path);
+               ERROR ("cgroups_cpuacct plugin: stat (\"%s\") failed.",
+                               abs_path);
                return (-1);
        }
 
@@ -90,34 +87,54 @@ static int read_cpuacct_procs (const char *dirname, char const *cgroup_name,
 
        ssnprintf (abs_path, sizeof (abs_path), "%s/%s/cpuacct.stat",
                        dirname, cgroup_name);
-       status = (int) read_file_contents (abs_path, buf, sizeof (buf) - 1);
-       if (status <= 0)
+       fh = fopen (abs_path, "r");
+       if (fh == NULL)
        {
                char errbuf[1024];
-               ERROR ("cgroups_cpuacct plugin: read_file_contents(%s): %s",
-                               abs_path, sstrerror (errno, errbuf, sizeof (errbuf)));
+               ERROR ("cgroups_cpuacct pluign: fopen (\"%s\") failed: %s",
+                               abs_path,
+                               sstrerror (errno, errbuf, sizeof (errbuf)));
                return (-1);
        }
-       buf[status] = '\0';
 
-       numfields = strsplit (buf, fields, STATIC_ARRAY_SIZE (fields));
-       if (numfields != 4)
+       while (fgets (buf, sizeof (buf), fh) != NULL)
        {
-               ERROR ("cgroups_cpuacct plugin: unexpected content in file %s",
-                               abs_path);
-               return (-1);
-       }
+               char *fields[8];
+               int numfields = 0;
+               char *key;
+               size_t key_len;
+               value_t value;
+
+               /* Expected format:
+                *
+                *   user: 12345
+                *   system: 23456
+                */
+               strstripnewline (buf);
+               numfields = strsplit (buf, fields, STATIC_ARRAY_SIZE (fields));
+               if (numfields != 2)
+                       continue;
 
-       status = parse_value (fields[1], &usertime, DS_TYPE_DERIVE);
-       if (status == 0)
-               cgroups_submit_one (cgroup_name, "user", usertime);
+               key = fields[0];
+               key_len = strlen (key);
+               if (key_len < 2)
+                       continue;
+
+               /* Strip colon off the first column */
+               if (key[key_len - 1] != ':')
+                       continue;
+               key[key_len - 1] = 0;
 
-       status = parse_value (fields[3], &systemtime, DS_TYPE_DERIVE);
-       if (status == 0)
-               cgroups_submit_one (cgroup_name, "system", systemtime);
+               status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
+               if (status != 0)
+                       continue;
 
+               cgroups_submit_one (cgroup_name, key, value);
+       }
+
+       fclose (fh);
        return (0);
-}
+} /* int read_cpuacct_procs */
 
 /*
  * Gets called for every file/folder in /sys/fs/cgroup/cpu,cpuacct (or