-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
#include <dirent.h>
#include <errno.h>
#include <ftw.h>
+//#include <limits.h>
#include <signal.h>
+//#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
+//#include <sys/statfs.h>
#include <sys/types.h>
#include <unistd.h>
#include "alloc-util.h"
#include "cgroup-util.h"
+//#include "def.h"
#include "dirent-util.h"
#include "extract-word.h"
#include "fd-util.h"
#include "fileio.h"
#include "formats-util.h"
#include "fs-util.h"
+//#include "log.h"
#include "login-util.h"
#include "macro.h"
+//#include "missing.h"
#include "mkdir.h"
#include "parse-util.h"
#include "path-util.h"
#include "set.h"
//#include "special.h"
#include "stat-util.h"
+#include "stdio-util.h"
#include "string-table.h"
#include "string-util.h"
#include "unit-name.h"
#include "user-util.h"
-#include "util.h"
int cg_enumerate_processes(const char *controller, const char *path, FILE **_f) {
_cleanup_free_ char *fs = NULL;
if (feof(f))
return 0;
- return errno ? -errno : -EIO;
+ return errno > 0 ? -errno : -EIO;
}
if (ul <= 0)
return 1;
}
+int cg_read_event(const char *controller, const char *path, const char *event,
+ char **val)
+{
+ _cleanup_free_ char *events = NULL, *content = NULL;
+ char *p, *line;
+ int r;
+
+ r = cg_get_path(controller, path, "cgroup.events", &events);
+ if (r < 0)
+ return r;
+
+ r = read_full_file(events, &content, NULL);
+ if (r < 0)
+ return r;
+
+ p = content;
+ while ((line = strsep(&p, "\n"))) {
+ char *key;
+
+ key = strsep(&line, " ");
+ if (!key || !line)
+ return -EINVAL;
+
+ if (strcmp(key, event))
+ continue;
+
+ *val = strdup(line);
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
int cg_enumerate_subgroups(const char *controller, const char *path, DIR **_d) {
_cleanup_free_ char *fs = NULL;
int r;
r = join_path_unified(path, suffix, fs);
else
r = join_path_legacy(controller, path, suffix, fs);
-
if (r < 0)
return r;
if (nftw(fs, trim_cb, 64, FTW_DEPTH|FTW_MOUNT|FTW_PHYS) != 0) {
if (errno == ENOENT)
r = 0;
- else if (errno != 0)
+ else if (errno > 0)
r = -errno;
else
r = -EIO;
if (pid == 0)
pid = getpid();
- snprintf(c, sizeof(c), PID_FMT"\n", pid);
+ xsprintf(c, PID_FMT "\n", pid);
return write_string_file(fs, c, 0);
}
return unified;
if (unified > 0) {
- _cleanup_free_ char *populated = NULL, *t = NULL;
+ _cleanup_free_ char *t = NULL;
/* On the unified hierarchy we can check empty state
- * via the "cgroup.populated" attribute. */
-
- r = cg_get_path(controller, path, "cgroup.populated", &populated);
- if (r < 0)
- return r;
+ * via the "populated" attribute of "cgroup.events". */
- r = read_one_line_file(populated, &t);
- if (r == -ENOENT)
- return 1;
+ r = cg_read_event(controller, path, "populated", &t);
if (r < 0)
return r;
}
int cg_get_root_path(char **path) {
-/// elogind does not support systemd scopes and slices
-#if 0
+#if 0 /// elogind does not support systemd scopes and slices
char *p, *e;
int r;
if (feof(f))
break;
- if (ferror(f) && errno != 0)
+ if (ferror(f) && errno > 0)
return -errno;
return -EBADMSG;
[CGROUP_CONTROLLER_MEMORY] = "memory",
[CGROUP_CONTROLLER_DEVICES] = "devices",
[CGROUP_CONTROLLER_PIDS] = "pids",
- [CGROUP_CONTROLLER_NET_CLS] = "net_cls",
};
DEFINE_STRING_TABLE_LOOKUP(cgroup_controller, CGroupController);