diff --git a/man/systemd-cgtop.xml b/man/systemd-cgtop.xml
index e4bc22f278..0e0ea3ba7a 100644
--- a/man/systemd-cgtop.xml
+++ b/man/systemd-cgtop.xml
@@ -165,15 +165,39 @@
Controls whether the CPU usage is shown as
percentage or time. By default the CPU usage is shown as
- percentage.
+ percentage. This setting may also be toggled at runtime by
+ pressing the % key.
+
+
+
+
+
+ Include kernel threads when counting tasks in
+ control groups. By default, kernel threads are not included in
+ the count. This setting may also be toggled at runtime by
+ pressing the k key.
+
+
+
+
+
+ Controls whether the number of tasks shown for
+ a control group shall include all tasks that are contained in
+ any of the child control groups as well. Takes a boolean
+ argument, defaults to yes. If enabled the
+ tasks in child control groups are included, if disabled only
+ the tasks in the control group itself are counted. This
+ setting may also be toggled at runtime by pressing the
+ r key.
- Perform only this many iterations. A value of 0
- indicates that the program should run indefinitely.
+ Perform only this many iterations. A value of
+ 0 indicates that the program should run
+ indefinitely.
@@ -181,10 +205,11 @@
Specify refresh delay in seconds (or if one of
- ms,
- us,
+ ms, us,
min is specified as unit in this time
- unit).
+ unit). This setting may also be increased and decreased at
+ runtime by pressing the + and
+ - keys.
@@ -204,7 +229,6 @@
-
Keys
@@ -213,49 +237,72 @@
- h
+ h
Shows a short help text.
- SPACE
+
Immediately refresh output.
- q
+ q
Terminate the program.
-
- p
- t
- c
- m
- i
+ p
+ t
+ c
+ m
+ i
Sort the control groups by path, number of
- tasks, CPU load, memory usage, or IO load, respectively.
-
+ tasks, CPU load, memory usage, or IO load, respectively. This
+ setting may also be controlled using the
+ command line
+ switch.
- %
+ %
Toggle between showing CPU time as time or
- percentage.
+ percentage. This setting may also be controlled using the
+ command line switch.
- +
- -
+ +
+ -
Increase or decrease refresh delay,
- respectively.
+ respectively. This setting may also be controlled using the
+ command line
+ switch.
+
+
+
+ k
+
+ Toggle between including or excluding kernel
+ threads in control group task counts. This setting may also be
+ controlled using the command line
+ switch.
+
+
+
+ r
+
+ Toggle between recursively including or
+ excluding tasks in child control groups in control group task
+ counts. This setting may also be controlled using the
+ command line
+ switch.
diff --git a/src/basic/process-util.c b/src/basic/process-util.c
index 61f188467f..cff2d2a034 100644
--- a/src/basic/process-util.c
+++ b/src/basic/process-util.c
@@ -181,10 +181,10 @@ int is_kernel_thread(pid_t pid) {
bool eof;
FILE *f;
- if (pid == 0)
+ if (pid == 0 || pid == 1) /* pid 1, and we ourselves certainly aren't a kernel thread */
return 0;
- assert(pid > 0);
+ assert(pid > 1);
p = procfs_file_alloca(pid, "cmdline");
f = fopen(p, "re");
diff --git a/src/basic/util.c b/src/basic/util.c
index a9071aa117..737f2a221c 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -4273,7 +4273,7 @@ bool is_locale_utf8(void) {
/* Check result, but ignore the result if C was set
* explicitly. */
cached_answer =
- streq(set, "C") &&
+ STR_IN_SET(set, "C", "POSIX") &&
!getenv("LC_ALL") &&
!getenv("LC_CTYPE") &&
!getenv("LANG");
diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c
index fae9398aa5..a8d910d532 100644
--- a/src/cgls/cgls.c
+++ b/src/cgls/cgls.c
@@ -160,7 +160,7 @@ static int get_cgroup_root(char **ret) {
&error,
ret);
if (r < 0)
- return log_error_errno(r, "Failed to query unit control group path: %m");
+ return log_error_errno(r, "Failed to query unit control group path: %s", bus_error_message(&error, r));
return 0;
}
@@ -263,7 +263,7 @@ int main(int argc, char *argv[]) {
if (r < 0)
goto finish;
- printf("Control group %s:\n", root);
+ printf("Control group %s:\n", isempty(root) ? "/" : root);
fflush(stdout);
r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, root, NULL, 0, arg_kernel_threads, output_flags);
diff --git a/src/cgtop/cgtop.c b/src/cgtop/cgtop.c
index 26b104f111..06a43d15e4 100644
--- a/src/cgtop/cgtop.c
+++ b/src/cgtop/cgtop.c
@@ -30,6 +30,7 @@
#include "path-util.h"
#include "terminal-util.h"
+#include "process-util.h"
#include "util.h"
#include "hashmap.h"
#include "cgroup-util.h"
@@ -64,6 +65,8 @@ static unsigned arg_iterations = (unsigned) -1;
static bool arg_batch = false;
static bool arg_raw = false;
static usec_t arg_delay = 1*USEC_PER_SEC;
+static bool arg_kernel_threads = false;
+static bool arg_recursive = true;
static enum {
ORDER_PATH,
@@ -107,7 +110,14 @@ static const char *maybe_format_bytes(char *buf, size_t l, bool is_valid, off_t
return format_bytes(buf, l, t);
}
-static int process(const char *controller, const char *path, Hashmap *a, Hashmap *b, unsigned iteration) {
+static int process(
+ const char *controller,
+ const char *path,
+ Hashmap *a,
+ Hashmap *b,
+ unsigned iteration,
+ Group **ret) {
+
Group *g;
int r;
@@ -154,8 +164,13 @@ static int process(const char *controller, const char *path, Hashmap *a, Hashmap
return r;
g->n_tasks = 0;
- while (cg_read_pid(f, &pid) > 0)
+ while (cg_read_pid(f, &pid) > 0) {
+
+ if (!arg_kernel_threads && is_kernel_thread(pid) > 0)
+ continue;
+
g->n_tasks++;
+ }
if (g->n_tasks > 0)
g->n_tasks_valid = true;
@@ -296,6 +311,9 @@ static int process(const char *controller, const char *path, Hashmap *a, Hashmap
g->io_iteration = iteration;
}
+ if (ret)
+ *ret = g;
+
return 0;
}
@@ -305,9 +323,11 @@ static int refresh_one(
Hashmap *a,
Hashmap *b,
unsigned iteration,
- unsigned depth) {
+ unsigned depth,
+ Group **ret) {
_cleanup_closedir_ DIR *d = NULL;
+ Group *ours;
int r;
assert(controller);
@@ -317,7 +337,7 @@ static int refresh_one(
if (depth > arg_depth)
return 0;
- r = process(controller, path, a, b, iteration);
+ r = process(controller, path, a, b, iteration, &ours);
if (r < 0)
return r;
@@ -329,10 +349,13 @@ static int refresh_one(
for (;;) {
_cleanup_free_ char *fn = NULL, *p = NULL;
+ Group *child = NULL;
r = cg_read_subgroup(d, &fn);
- if (r <= 0)
+ if (r < 0)
return r;
+ if (r == 0)
+ break;
p = strjoin(path, "/", fn, NULL);
if (!p)
@@ -340,29 +363,47 @@ static int refresh_one(
path_kill_slashes(p);
- r = refresh_one(controller, p, a, b, iteration, depth + 1);
+ r = refresh_one(controller, p, a, b, iteration, depth + 1, &child);
if (r < 0)
return r;
+
+ if (arg_recursive &&
+ child &&
+ child->n_tasks_valid &&
+ streq(controller, SYSTEMD_CGROUP_CONTROLLER)) {
+
+ /* Recursively sum up processes */
+
+ if (ours->n_tasks_valid)
+ ours->n_tasks += child->n_tasks;
+ else {
+ ours->n_tasks = child->n_tasks;
+ ours->n_tasks_valid = true;
+ }
+ }
}
- return r;
+ if (ret)
+ *ret = ours;
+
+ return 1;
}
-static int refresh(Hashmap *a, Hashmap *b, unsigned iteration) {
+static int refresh(const char *root, Hashmap *a, Hashmap *b, unsigned iteration) {
int r;
assert(a);
- r = refresh_one(SYSTEMD_CGROUP_CONTROLLER, "/", a, b, iteration, 0);
+ r = refresh_one(SYSTEMD_CGROUP_CONTROLLER, root, a, b, iteration, 0, NULL);
if (r < 0)
return r;
- r = refresh_one("cpuacct", "/", a, b, iteration, 0);
+ r = refresh_one("cpuacct", root, a, b, iteration, 0, NULL);
if (r < 0)
return r;
- r = refresh_one("memory", "/", a, b, iteration, 0);
+ r = refresh_one("memory", root, a, b, iteration, 0, NULL);
if (r < 0)
return r;
- r = refresh_one("blkio", "/", a, b, iteration, 0);
+ r = refresh_one("blkio", root, a, b, iteration, 0, NULL);
if (r < 0)
return r;
@@ -372,11 +413,11 @@ static int refresh(Hashmap *a, Hashmap *b, unsigned iteration) {
static int group_compare(const void*a, const void *b) {
const Group *x = *(Group**)a, *y = *(Group**)b;
- if (arg_order != ORDER_TASKS) {
+ if (arg_order != ORDER_TASKS || arg_recursive) {
/* Let's make sure that the parent is always before
- * the child. Except when ordering by tasks, since
- * that is actually not accumulative for all
- * children. */
+ * the child. Except when ordering by tasks and
+ * recursive summing is off, since that is actually
+ * not accumulative for all children. */
if (path_startswith(y->path, x->path))
return -1;
@@ -453,7 +494,7 @@ static int group_compare(const void*a, const void *b) {
#define ON ANSI_HIGHLIGHT_ON
#define OFF ANSI_HIGHLIGHT_OFF
-static int display(Hashmap *a) {
+static void display(Hashmap *a) {
Iterator i;
Group *g;
Group **array;
@@ -548,8 +589,6 @@ static int display(Hashmap *a) {
putchar('\n');
}
-
- return 0;
}
static void help(void) {
@@ -565,6 +604,8 @@ static void help(void) {
" -r --raw Provide raw (not human-readable) numbers\n"
" --cpu=percentage Show CPU usage as percentage (default)\n"
" --cpu=time Show CPU usage as time\n"
+ " -k Include kernel threads in task count\n"
+ " --recursive=BOOL Sum up task count recursively\n"
" -d --delay=DELAY Delay between updates\n"
" -n --iterations=N Run for N iterations before exiting\n"
" -b --batch Run in batch mode, accepting no input\n"
@@ -579,28 +620,29 @@ static int parse_argv(int argc, char *argv[]) {
ARG_DEPTH,
ARG_CPU_TYPE,
ARG_ORDER,
+ ARG_RECURSIVE,
};
static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "delay", required_argument, NULL, 'd' },
- { "iterations", required_argument, NULL, 'n' },
- { "batch", no_argument, NULL, 'b' },
- { "raw", no_argument, NULL, 'r' },
- { "depth", required_argument, NULL, ARG_DEPTH },
- { "cpu", optional_argument, NULL, ARG_CPU_TYPE },
- { "order", required_argument, NULL, ARG_ORDER },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "delay", required_argument, NULL, 'd' },
+ { "iterations", required_argument, NULL, 'n' },
+ { "batch", no_argument, NULL, 'b' },
+ { "raw", no_argument, NULL, 'r' },
+ { "depth", required_argument, NULL, ARG_DEPTH },
+ { "cpu", optional_argument, NULL, ARG_CPU_TYPE },
+ { "order", required_argument, NULL, ARG_ORDER },
+ { "recursive", required_argument, NULL, ARG_RECURSIVE },
{}
};
- int c;
- int r;
+ int c, r;
assert(argc >= 1);
assert(argv);
- while ((c = getopt_long(argc, argv, "hptcmin:brd:", options, NULL)) >= 0)
+ while ((c = getopt_long(argc, argv, "hptcmin:brd:k", options, NULL)) >= 0)
switch (c) {
@@ -700,6 +742,20 @@ static int parse_argv(int argc, char *argv[]) {
}
break;
+ case 'k':
+ arg_kernel_threads = true;
+ break;
+
+ case ARG_RECURSIVE:
+ r = parse_boolean(optarg);
+ if (r < 0) {
+ log_error("Failed to parse --recursive= argument: %s", optarg);
+ return r;
+ }
+
+ arg_recursive = r;
+ break;
+
case '?':
return -EINVAL;
@@ -721,6 +777,7 @@ int main(int argc, char *argv[]) {
unsigned iteration = 0;
usec_t last_refresh = 0;
bool quit = false, immediate_refresh = false;
+ _cleanup_free_ char *root = NULL;
log_parse_environment();
log_open();
@@ -729,6 +786,12 @@ int main(int argc, char *argv[]) {
if (r <= 0)
goto finish;
+ r = cg_get_root_path(&root);
+ if (r < 0) {
+ log_error_errno(r, "Failed to get root control group path: %m");
+ goto finish;
+ }
+
a = hashmap_new(&string_hash_ops);
b = hashmap_new(&string_hash_ops);
if (!a || !b) {
@@ -751,9 +814,11 @@ int main(int argc, char *argv[]) {
if (t >= last_refresh + arg_delay || immediate_refresh) {
- r = refresh(a, b, iteration++);
- if (r < 0)
+ r = refresh(root, a, b, iteration++);
+ if (r < 0) {
+ log_error_errno(r, "Failed to refresh: %m");
goto finish;
+ }
group_hashmap_clear(b);
@@ -765,9 +830,7 @@ int main(int argc, char *argv[]) {
immediate_refresh = false;
}
- r = display(b);
- if (r < 0)
- goto finish;
+ display(b);
if (arg_iterations && iteration >= arg_iterations)
break;
@@ -777,7 +840,7 @@ int main(int argc, char *argv[]) {
fflush(stdout);
if (arg_batch)
- usleep(last_refresh + arg_delay - t);
+ (void) usleep(last_refresh + arg_delay - t);
else {
r = read_one_char(stdin, &key, last_refresh + arg_delay - t, NULL);
if (r == -ETIMEDOUT)
@@ -830,6 +893,20 @@ int main(int argc, char *argv[]) {
arg_cpu_type = arg_cpu_type == CPU_TIME ? CPU_PERCENT : CPU_TIME;
break;
+ case 'k':
+ arg_kernel_threads = !arg_kernel_threads;
+ fprintf(stdout, "\nCounting kernel threads: %s.", yes_no(arg_kernel_threads));
+ fflush(stdout);
+ sleep(1);
+ break;
+
+ case 'r':
+ arg_recursive = !arg_recursive;
+ fprintf(stdout, "\nRecursive task counting: %s", yes_no(arg_recursive));
+ fflush(stdout);
+ sleep(1);
+ break;
+
case '+':
if (arg_delay < USEC_PER_SEC)
arg_delay += USEC_PER_MSEC*250;
@@ -858,8 +935,8 @@ int main(int argc, char *argv[]) {
case 'h':
fprintf(stdout,
"\t<" ON "p" OFF "> By path; <" ON "t" OFF "> By tasks; <" ON "c" OFF "> By CPU; <" ON "m" OFF "> By memory; <" ON "i" OFF "> By I/O\n"
- "\t<" ON "+" OFF "> Increase delay; <" ON "-" OFF "> Decrease delay; <" ON "%%" OFF "> Toggle time\n"
- "\t<" ON "q" OFF "> Quit; <" ON "SPACE" OFF "> Refresh");
+ "\t<" ON "+" OFF "> Inc. delay; <" ON "-" OFF "> Dec. delay; <" ON "%%" OFF "> Toggle time; <" ON "SPACE" OFF "> Refresh\n"
+ "\t<" ON "k" OFF "> Count kernel threads; <" ON "r" OFF "> Count recursively; <" ON "q" OFF "> Quit");
fflush(stdout);
sleep(3);
break;
@@ -881,10 +958,5 @@ finish:
group_hashmap_free(a);
group_hashmap_free(b);
- if (r < 0) {
- log_error_errno(r, "Exiting with failure: %m");
- return EXIT_FAILURE;
- }
-
- return EXIT_SUCCESS;
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index 6474e08bd2..c26807ba2b 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -806,12 +806,9 @@ static void unit_queue_siblings(Unit *u) {
}
int unit_realize_cgroup(Unit *u) {
- CGroupContext *c;
-
assert(u);
- c = unit_get_cgroup_context(u);
- if (!c)
+ if (!UNIT_HAS_CGROUP_CONTEXT(u))
return 0;
/* So, here's the deal: when realizing the cgroups for this
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 42bb653cc1..1e6291e762 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -965,38 +965,39 @@ static int bus_unit_set_transient_property(
return 1;
- } else if (streq(name, "Slice") && unit_get_cgroup_context(u)) {
+ } else if (streq(name, "Slice")) {
+ Unit *slice;
const char *s;
+ if (!UNIT_HAS_CGROUP_CONTEXT(u))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "The slice property is only available for units with control groups.");
+ if (u->type == UNIT_SLICE)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Slice may not be set for slice units.");
+
r = sd_bus_message_read(message, "s", &s);
if (r < 0)
return r;
- if (!unit_name_is_valid(s, UNIT_NAME_PLAIN) || !endswith(s, ".slice"))
- return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid slice name %s", s);
+ if (!unit_name_is_valid(s, UNIT_NAME_PLAIN))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid unit name '%s'", s);
- if (isempty(s)) {
- if (mode != UNIT_CHECK) {
- unit_ref_unset(&u->slice);
- unit_remove_drop_in(u, mode, name);
- }
- } else {
- Unit *slice;
+ r = manager_load_unit(u->manager, s, NULL, error, &slice);
+ if (r < 0)
+ return r;
- r = manager_load_unit(u->manager, s, NULL, error, &slice);
+ if (slice->type != UNIT_SLICE)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unit name '%s' is not a slice", s);
+
+ if (mode != UNIT_CHECK) {
+ r = unit_set_slice(u, slice);
if (r < 0)
return r;
- if (slice->type != UNIT_SLICE)
- return -EINVAL;
-
- if (mode != UNIT_CHECK) {
- unit_ref_set(&u->slice, slice);
- unit_write_drop_in_private_format(u, mode, name, "Slice=%s\n", s);
- }
+ unit_write_drop_in_private_format(u, mode, name, "Slice=%s\n", s);
}
return 1;
+
} else if (STR_IN_SET(name,
"Requires", "RequiresOverridable",
"Requisite", "RequisiteOverridable",
diff --git a/src/core/dbus.c b/src/core/dbus.c
index d091aa5419..7ad16aa42b 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -381,7 +381,7 @@ static int bus_unit_cgroup_find(sd_bus *bus, const char *path, const char *inter
if (!streq_ptr(interface, unit_dbus_interface_from_type(u->type)))
return 0;
- if (!unit_get_cgroup_context(u))
+ if (!UNIT_HAS_CGROUP_CONTEXT(u))
return 0;
*found = u;
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index b3bf8bdb40..745291c5c6 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -2602,7 +2602,7 @@ int config_parse_unit_slice(
void *userdata) {
_cleanup_free_ char *k = NULL;
- Unit *u = userdata, *slice;
+ Unit *u = userdata, *slice = NULL;
int r;
assert(filename);
@@ -2611,29 +2611,23 @@ int config_parse_unit_slice(
assert(u);
r = unit_name_printf(u, rvalue, &k);
- if (r < 0)
- log_syntax(unit, LOG_ERR, filename, line, -r,
- "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
- if (!k) {
- k = strdup(rvalue);
- if (!k)
- return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
+ return 0;
}
r = manager_load_unit(u->manager, k, NULL, NULL, &slice);
if (r < 0) {
- log_syntax(unit, LOG_ERR, filename, line, -r,
- "Failed to load slice unit %s. Ignoring.", k);
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load slice unit %s. Ignoring.", k);
return 0;
}
- if (slice->type != UNIT_SLICE) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Slice unit %s is not a slice. Ignoring.", k);
+ r = unit_set_slice(u, slice);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to assign slice %s to unit %s. Ignoring.", slice->id, u->id);
return 0;
}
- unit_ref_set(&u->slice, slice);
return 0;
}
@@ -3603,6 +3597,11 @@ int unit_load_fragment(Unit *u) {
assert(u->load_state == UNIT_STUB);
assert(u->id);
+ if (u->transient) {
+ u->load_state = UNIT_LOADED;
+ return 0;
+ }
+
/* First, try to find the unit under its id. We always look
* for unit files in the default directories, to make it easy
* to override things by placing things in /etc/systemd/system */
diff --git a/src/core/main.c b/src/core/main.c
index 87b97aa883..e232be88c0 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1391,8 +1391,7 @@ int main(int argc, char *argv[]) {
/* clear the kernel timestamp,
* because we are not PID 1 */
- kernel_timestamp.monotonic = 0ULL;
- kernel_timestamp.realtime = 0ULL;
+ kernel_timestamp = DUAL_TIMESTAMP_NULL;
}
/* Initialize default unit */
diff --git a/src/core/manager.c b/src/core/manager.c
index ecea89c377..ede2a9910d 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -250,8 +250,8 @@ static int manager_dispatch_ask_password_fd(sd_event_source *source,
static void manager_close_ask_password(Manager *m) {
assert(m);
- m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd);
m->ask_password_event_source = sd_event_source_unref(m->ask_password_event_source);
+ m->ask_password_inotify_fd = safe_close(m->ask_password_inotify_fd);
m->have_ask_password = -EINVAL;
}
diff --git a/src/core/mount.c b/src/core/mount.c
index 7e19e66a51..2b81d17b9c 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -521,7 +521,7 @@ static int mount_add_extras(Mount *m) {
if (r < 0)
return r;
- r = unit_add_default_slice(u, &m->cgroup_context);
+ r = unit_set_default_slice(u);
if (r < 0)
return r;
diff --git a/src/core/scope.c b/src/core/scope.c
index bf89936153..c594ab5294 100644
--- a/src/core/scope.c
+++ b/src/core/scope.c
@@ -164,7 +164,7 @@ static int scope_load(Unit *u) {
if (r < 0)
return r;
- r = unit_add_default_slice(u, &s->cgroup_context);
+ r = unit_set_default_slice(u);
if (r < 0)
return r;
diff --git a/src/core/service.c b/src/core/service.c
index 097e7c710c..3c4232417d 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -556,7 +556,7 @@ static int service_add_extras(Service *s) {
if (r < 0)
return r;
- r = unit_add_default_slice(UNIT(s), &s->cgroup_context);
+ r = unit_set_default_slice(UNIT(s));
if (r < 0)
return r;
diff --git a/src/core/socket.c b/src/core/socket.c
index aa65c5b7a0..1014fad626 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -345,7 +345,7 @@ static int socket_add_extras(Socket *s) {
if (r < 0)
return r;
- r = unit_add_default_slice(u, &s->cgroup_context);
+ r = unit_set_default_slice(u);
if (r < 0)
return r;
}
diff --git a/src/core/swap.c b/src/core/swap.c
index 349fd6f7b9..4f3ddc9f04 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -326,7 +326,7 @@ static int swap_load(Unit *u) {
if (r < 0)
return r;
- r = unit_add_default_slice(u, &s->cgroup_context);
+ r = unit_set_default_slice(u);
if (r < 0)
return r;
diff --git a/src/core/unit.c b/src/core/unit.c
index 43a5ca1064..5f602bdf5f 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -405,17 +405,17 @@ static void unit_remove_transient(Unit *u) {
return;
if (u->fragment_path)
- unlink(u->fragment_path);
+ (void) unlink(u->fragment_path);
STRV_FOREACH(i, u->dropin_paths) {
_cleanup_free_ char *p = NULL;
int r;
- unlink(*i);
+ (void) unlink(*i);
r = path_get_parent(*i, &p);
if (r >= 0)
- rmdir(p);
+ (void) rmdir(p);
}
}
@@ -1122,7 +1122,7 @@ static int unit_add_target_dependencies(Unit *u) {
static int unit_add_slice_dependencies(Unit *u) {
assert(u);
- if (!unit_get_cgroup_context(u))
+ if (!UNIT_HAS_CGROUP_CONTEXT(u))
return 0;
if (UNIT_ISSET(u->slice))
@@ -2424,14 +2424,42 @@ char *unit_default_cgroup_path(Unit *u) {
return strjoin(u->manager->cgroup_root, "/", escaped, NULL);
}
-int unit_add_default_slice(Unit *u, CGroupContext *c) {
+int unit_set_slice(Unit *u, Unit *slice) {
+ assert(u);
+ assert(slice);
+
+ /* Sets the unit slice if it has not been set before. Is extra
+ * careful, to only allow this for units that actually have a
+ * cgroup context. Also, we don't allow to set this for slices
+ * (since the parent slice is derived from the name). Make
+ * sure the unit we set is actually a slice. */
+
+ if (!UNIT_HAS_CGROUP_CONTEXT(u))
+ return -EOPNOTSUPP;
+
+ if (u->type == UNIT_SLICE)
+ return -EINVAL;
+
+ if (slice->type != UNIT_SLICE)
+ return -EINVAL;
+
+ if (UNIT_DEREF(u->slice) == slice)
+ return 0;
+
+ if (UNIT_ISSET(u->slice))
+ return -EBUSY;
+
+ unit_ref_set(&u->slice, slice);
+ return 1;
+}
+
+int unit_set_default_slice(Unit *u) {
_cleanup_free_ char *b = NULL;
const char *slice_name;
Unit *slice;
int r;
assert(u);
- assert(c);
if (UNIT_ISSET(u->slice))
return 0;
@@ -2471,8 +2499,7 @@ int unit_add_default_slice(Unit *u, CGroupContext *c) {
if (r < 0)
return r;
- unit_ref_set(&u->slice, slice);
- return 0;
+ return unit_set_slice(u, slice);
}
const char *unit_slice_name(Unit *u) {
@@ -3108,17 +3135,17 @@ int unit_kill_common(
int r = 0;
- if (who == KILL_MAIN && main_pid <= 0) {
+ if (who == KILL_MAIN) {
if (main_pid < 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no main processes", unit_type_to_string(u->type));
- else
+ else if (main_pid == 0)
return sd_bus_error_set_const(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill");
}
- if (who == KILL_CONTROL && control_pid <= 0) {
+ if (who == KILL_CONTROL) {
if (control_pid < 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_PROCESS, "%s units have no control processes", unit_type_to_string(u->type));
- else
+ else if (control_pid == 0)
return sd_bus_error_set_const(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
}
@@ -3317,6 +3344,8 @@ ExecRuntime *unit_get_exec_runtime(Unit *u) {
}
static int unit_drop_in_dir(Unit *u, UnitSetPropertiesMode mode, bool transient, char **dir) {
+ assert(u);
+
if (u->manager->running_as == MANAGER_USER) {
int r;
@@ -3324,9 +3353,9 @@ static int unit_drop_in_dir(Unit *u, UnitSetPropertiesMode mode, bool transient,
r = user_config_home(dir);
else
r = user_runtime_dir(dir);
-
if (r == 0)
return -ENOENT;
+
return r;
}
@@ -3340,8 +3369,7 @@ static int unit_drop_in_dir(Unit *u, UnitSetPropertiesMode mode, bool transient,
return 0;
}
-static int unit_drop_in_file(Unit *u,
- UnitSetPropertiesMode mode, const char *name, char **p, char **q) {
+static int unit_drop_in_file(Unit *u, UnitSetPropertiesMode mode, const char *name, char **p, char **q) {
_cleanup_free_ char *dir = NULL;
int r;
@@ -3475,40 +3503,17 @@ int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name) {
}
int unit_make_transient(Unit *u) {
- int r;
-
assert(u);
+ if (!UNIT_VTABLE(u)->can_transient)
+ return -EOPNOTSUPP;
+
u->load_state = UNIT_STUB;
u->load_error = 0;
u->transient = true;
+ u->fragment_path = mfree(u->fragment_path);
- free(u->fragment_path);
- u->fragment_path = NULL;
-
- if (u->manager->running_as == MANAGER_USER) {
- _cleanup_free_ char *c = NULL;
-
- r = user_runtime_dir(&c);
- if (r < 0)
- return r;
- if (r == 0)
- return -ENOENT;
-
- u->fragment_path = strjoin(c, "/", u->id, NULL);
- if (!u->fragment_path)
- return -ENOMEM;
-
- mkdir_p(c, 0755);
- } else {
- u->fragment_path = strappend("/run/systemd/system/", u->id);
- if (!u->fragment_path)
- return -ENOMEM;
-
- mkdir_p("/run/systemd/system", 0755);
- }
-
- return write_string_file_atomic_label(u->fragment_path, "# Transient stub");
+ return 0;
}
int unit_kill_context(
diff --git a/src/core/unit.h b/src/core/unit.h
index f53b7f6da1..bc26653247 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -439,6 +439,10 @@ extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX];
/* For casting the various unit types into a unit */
#define UNIT(u) (&(u)->meta)
+#define UNIT_HAS_EXEC_CONTEXT(u) (UNIT_VTABLE(u)->exec_context_offset > 0)
+#define UNIT_HAS_CGROUP_CONTEXT(u) (UNIT_VTABLE(u)->cgroup_context_offset > 0)
+#define UNIT_HAS_KILL_CONTEXT(u) (UNIT_VTABLE(u)->kill_context_offset > 0)
+
#define UNIT_TRIGGER(u) ((Unit*) set_first((u)->dependencies[UNIT_TRIGGERS]))
DEFINE_CAST(SERVICE, Service);
@@ -490,7 +494,8 @@ int unit_load_fragment_and_dropin(Unit *u);
int unit_load_fragment_and_dropin_optional(Unit *u);
int unit_load(Unit *unit);
-int unit_add_default_slice(Unit *u, CGroupContext *c);
+int unit_set_slice(Unit *u, Unit *slice);
+int unit_set_default_slice(Unit *u);
const char *unit_description(Unit *u) _pure_;
diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
index 0e33ced342..c419be820a 100644
--- a/src/libsystemd/sd-event/sd-event.c
+++ b/src/libsystemd/sd-event/sd-event.c
@@ -481,7 +481,8 @@ static void source_io_unregister(sd_event_source *s) {
return;
r = epoll_ctl(s->event->epoll_fd, EPOLL_CTL_DEL, s->io.fd, NULL);
- assert_log(r >= 0);
+ if (r < 0)
+ log_debug_errno(errno, "Failed to remove source %s from epoll: %m", strna(s->description));
s->io.registered = false;
}
diff --git a/src/shared/Makefile b/src/shared/Makefile
new file mode 120000
index 0000000000..d0b0e8e008
--- /dev/null
+++ b/src/shared/Makefile
@@ -0,0 +1 @@
+../Makefile
\ No newline at end of file
diff --git a/src/shared/pager.c b/src/shared/pager.c
index 85f8fa5b39..3992f9c837 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -82,7 +82,7 @@ int pager_open(bool jump_to_end) {
/* In the child start the pager */
if (pager_pid == 0) {
- const char* less_opts;
+ const char* less_opts, *less_charset;
(void) reset_all_signal_handlers();
(void) reset_signal_mask();
@@ -90,6 +90,7 @@ int pager_open(bool jump_to_end) {
dup2(fd[0], STDIN_FILENO);
safe_close_pair(fd);
+ /* Initialize a good set of less options */
less_opts = getenv("SYSTEMD_LESS");
if (!less_opts)
less_opts = "FRSXMK";
@@ -97,6 +98,15 @@ int pager_open(bool jump_to_end) {
less_opts = strjoina(less_opts, " +G");
setenv("LESS", less_opts, 1);
+ /* Initialize a good charset for less. This is
+ * particularly important if we output UTF-8
+ * characters. */
+ less_charset = getenv("SYSTEMD_LESSCHARSET");
+ if (!less_charset && is_locale_utf8())
+ less_charset = "utf-8";
+ if (less_charset)
+ setenv("LESSCHARSET", less_charset, 1);
+
/* Make sure the pager goes away when the parent dies */
if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
_exit(EXIT_FAILURE);