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-rw-r--r--src/shared/cgroup-show.c182
-rw-r--r--src/shared/cgroup-show.h4
-rw-r--r--src/shared/cgroup-util.c9
3 files changed, 136 insertions, 59 deletions
diff --git a/src/shared/cgroup-show.c b/src/shared/cgroup-show.c
index 5b639e06c..19f87e4bc 100644
--- a/src/shared/cgroup-show.c
+++ b/src/shared/cgroup-show.c
@@ -50,33 +50,72 @@ static unsigned ilog10(unsigned long ul) {
return n;
}
+static void show_pid_array(int pids[], unsigned n_pids, const char *prefix, unsigned n_columns, bool extra, bool more, bool kernel_threads) {
+ unsigned i, m;
+ pid_t biggest = 0;
+
+ /* Filter duplicates */
+ m = 0;
+ for (i = 0; i < n_pids; i++) {
+ unsigned j;
+
+ if (pids[i] > biggest)
+ biggest = pids[i];
+
+ for (j = i+1; j < n_pids; j++)
+ if (pids[i] == pids[j])
+ break;
+
+ if (j >= n_pids)
+ pids[m++] = pids[i];
+ }
+ n_pids = m;
+
+ /* And sort */
+ qsort(pids, n_pids, sizeof(pid_t), compare);
+
+ if (n_columns > 8)
+ n_columns -= 8;
+ else
+ n_columns = 20;
+
+ for (i = 0; i < n_pids; i++) {
+ char *t = NULL;
+
+ get_process_cmdline(pids[i], n_columns, true, &t);
+
+ printf("%s%s %*lu %s\n",
+ prefix,
+ extra ? "\342\200\243" : ((more || i < n_pids-1) ? "\342\224\234" : "\342\224\224"),
+ (int) ilog10(biggest),
+ (unsigned long) pids[i],
+ strna(t));
+
+ free(t);
+ }
+}
+
+
static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigned n_columns, bool more, bool kernel_threads) {
char *fn;
FILE *f;
size_t n = 0, n_allocated = 0;
pid_t *pids = NULL;
char *p;
- pid_t pid, biggest = 0;
+ pid_t pid;
int r;
- if (n_columns <= 0)
- n_columns = columns();
-
- if (!prefix)
- prefix = "";
-
- if ((r = cg_fix_path(path, &p)) < 0)
+ r = cg_fix_path(path, &p);
+ if (r < 0)
return r;
r = asprintf(&fn, "%s/cgroup.procs", p);
free(p);
-
if (r < 0)
return -ENOMEM;
f = fopen(fn, "re");
free(fn);
-
if (!f)
return -errno;
@@ -90,7 +129,8 @@ static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigne
n_allocated = MAX(16U, n*2U);
- if (!(npids = realloc(pids, sizeof(pid_t) * n_allocated))) {
+ npids = realloc(pids, sizeof(pid_t) * n_allocated);
+ if (!npids) {
r = -ENOMEM;
goto finish;
}
@@ -100,54 +140,13 @@ static int show_cgroup_one_by_path(const char *path, const char *prefix, unsigne
assert(n < n_allocated);
pids[n++] = pid;
-
- if (pid > biggest)
- biggest = pid;
}
if (r < 0)
goto finish;
- if (n > 0) {
- unsigned i, m;
-
- /* Filter duplicates */
- m = 0;
- for (i = 0; i < n; i++) {
- unsigned j;
-
- for (j = i+1; j < n; j++)
- if (pids[i] == pids[j])
- break;
-
- if (j >= n)
- pids[m++] = pids[i];
- }
- n = m;
-
- /* And sort */
- qsort(pids, n, sizeof(pid_t), compare);
-
- if (n_columns > 8)
- n_columns -= 8;
- else
- n_columns = 20;
-
- for (i = 0; i < n; i++) {
- char *t = NULL;
-
- get_process_cmdline(pids[i], n_columns, true, &t);
-
- printf("%s%s %*lu %s\n",
- prefix,
- (more || i < n-1) ? "\342\224\234" : "\342\224\224",
- (int) ilog10(biggest),
- (unsigned long) pids[i],
- strna(t));
-
- free(t);
- }
- }
+ if (n > 0)
+ show_pid_array(pids, n, prefix, n_columns, false, more, kernel_threads);
r = 0;
@@ -167,6 +166,8 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
bool shown_pids = false;
int r;
+ assert(path);
+
if (n_columns <= 0)
n_columns = columns();
@@ -188,7 +189,6 @@ int show_cgroup_by_path(const char *path, const char *prefix, unsigned n_columns
r = asprintf(&k, "%s/%s", fn, gn);
free(gn);
-
if (r < 0) {
r = -ENOMEM;
goto finish;
@@ -272,3 +272,75 @@ int show_cgroup(const char *controller, const char *path, const char *prefix, un
return r;
}
+
+static int show_extra_pids(const char *controller, const char *path, const char *prefix, unsigned n_columns, const pid_t pids[], unsigned n_pids) {
+ pid_t *copy;
+ unsigned i, j;
+ int r;
+
+ assert(controller);
+ assert(path);
+
+ if (n_pids <= 0)
+ return 0;
+
+ if (n_columns <= 0)
+ n_columns = columns();
+
+ if (!prefix)
+ prefix = "";
+
+ copy = new(pid_t, n_pids);
+ if (!copy)
+ return -ENOMEM;
+
+ for (i = 0, j = 0; i < n_pids; i++) {
+ char *k;
+
+ r = cg_get_by_pid(controller, pids[i], &k);
+ if (r < 0) {
+ free(copy);
+ return r;
+ }
+
+ if (path_startswith(k, path))
+ continue;
+
+ copy[j++] = pids[i];
+ }
+
+ show_pid_array(copy, j, prefix, n_columns, true, false, false);
+
+ free(copy);
+ return 0;
+}
+
+int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids) {
+ int r;
+
+ assert(controller);
+ assert(path);
+
+ r = show_cgroup(controller, path, prefix, n_columns, kernel_threads, all);
+ if (r < 0)
+ return r;
+
+ return show_extra_pids(controller, path, prefix, n_columns, extra_pids, n_extra_pids);
+}
+
+int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids) {
+ int r;
+ char *controller, *path;
+
+ assert(spec);
+
+ r = cg_split_spec(spec, &controller, &path);
+ if (r < 0)
+ return r;
+
+ r = show_cgroup_and_extra(controller, path, prefix, n_columns, kernel_threads, all, extra_pids, n_extra_pids);
+ free(controller);
+ free(path);
+
+ return r;
+}
diff --git a/src/shared/cgroup-show.h b/src/shared/cgroup-show.h
index e1d67a329..dba900a15 100644
--- a/src/shared/cgroup-show.h
+++ b/src/shared/cgroup-show.h
@@ -23,8 +23,12 @@
***/
#include <stdbool.h>
+#include <sys/types.h>
int show_cgroup_by_path(const char *path, const char *prefix, unsigned columns, bool kernel_threads, bool all);
int show_cgroup(const char *controller, const char *path, const char *prefix, unsigned columns, bool kernel_threads, bool all);
+int show_cgroup_and_extra_by_spec(const char *spec, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids);
+int show_cgroup_and_extra(const char *controller, const char *path, const char *prefix, unsigned n_columns, bool kernel_threads, bool all, const pid_t extra_pids[], unsigned n_extra_pids);
+
#endif
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index 48da4cb3b..8ceb38282 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -1050,11 +1050,11 @@ int cg_fix_path(const char *path, char **result) {
assert(result);
/* First check if it already is a filesystem path */
- if (path_is_absolute(path) &&
- path_startswith(path, "/sys/fs/cgroup") &&
+ if (path_startswith(path, "/sys/fs/cgroup") &&
access(path, F_OK) >= 0) {
- if (!(t = strdup(path)))
+ t = strdup(path);
+ if (!t)
return -ENOMEM;
*result = t;
@@ -1062,7 +1062,8 @@ int cg_fix_path(const char *path, char **result) {
}
/* Otherwise treat it as cg spec */
- if ((r = cg_split_spec(path, &c, &p)) < 0)
+ r = cg_split_spec(path, &c, &p);
+ if (r < 0)
return r;
r = cg_get_path(c ? c : SYSTEMD_CGROUP_CONTROLLER, p ? p : "/", NULL, result);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-24 16:43:01 +0000