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authorLennart Poettering <lennart@poettering.net>2015-04-28 12:33:19 +0200
committerLennart Poettering <lennart@poettering.net>2015-04-28 12:33:19 +0200
commit3d161f991e16369aa59f447eb4cdb90af33261c8 (patch)
treeba05f77fcd46afb8a6dd2e9d271f1fa661d460cc /src/run
parentde158ed22db60e3a6654557fa4aa72f7248550af (diff)
run: by default, wait until the transient unit finished start-up
Make this blocking behaviour optional with --no-block, similar to systemctl's switch of this name.
Diffstat (limited to 'src/run')
-rw-r--r--src/run/run.c36
1 files changed, 32 insertions, 4 deletions
diff --git a/src/run/run.c b/src/run/run.c
index 85fe29b672..db15ab6219 100644
--- a/src/run/run.c
+++ b/src/run/run.c
@@ -38,6 +38,7 @@
static bool arg_scope = false;
static bool arg_remain_after_exit = false;
+static bool arg_no_block = false;
static const char *arg_unit = NULL;
static const char *arg_description = NULL;
static const char *arg_slice = NULL;
@@ -77,6 +78,7 @@ static void help(void) {
" -p --property=NAME=VALUE Set unit property\n"
" --description=TEXT Description for unit\n"
" --slice=SLICE Run in the specified slice\n"
+ " --no-block Do not wait until operation finished\n"
" -r --remain-after-exit Leave service around until explicitly stopped\n"
" --send-sighup Send SIGHUP when terminating\n"
" --service-type=TYPE Service type\n"
@@ -124,7 +126,8 @@ static int parse_argv(int argc, char *argv[]) {
ARG_ON_UNIT_ACTIVE,
ARG_ON_UNIT_INACTIVE,
ARG_ON_CALENDAR,
- ARG_TIMER_PROPERTY
+ ARG_TIMER_PROPERTY,
+ ARG_NO_BLOCK,
};
static const struct option options[] = {
@@ -155,6 +158,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "on-unit-inactive", required_argument, NULL, ARG_ON_UNIT_INACTIVE },
{ "on-calendar", required_argument, NULL, ARG_ON_CALENDAR },
{ "timer-property", required_argument, NULL, ARG_TIMER_PROPERTY },
+ { "no-block", no_argument, NULL, ARG_NO_BLOCK },
{},
};
@@ -329,6 +333,10 @@ static int parse_argv(int argc, char *argv[]) {
break;
+ case ARG_NO_BLOCK:
+ arg_no_block = true;
+ break;
+
case '?':
return -EINVAL;
@@ -651,8 +659,9 @@ static int start_transient_service(
sd_bus *bus,
char **argv) {
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
+ _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
_cleanup_free_ char *service = NULL, *pty_path = NULL;
_cleanup_close_ int master = -1;
int r;
@@ -673,7 +682,6 @@ static int start_transient_service(
} else if (arg_transport == BUS_TRANSPORT_MACHINE) {
_cleanup_bus_unref_ sd_bus *system_bus = NULL;
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
const char *s;
r = sd_bus_open_system(&system_bus);
@@ -697,6 +705,8 @@ static int start_transient_service(
if (r < 0)
return bus_log_parse_error(r);
+ reply = sd_bus_message_unref(reply);
+
master = fcntl(master, F_DUPFD_CLOEXEC, 3);
if (master < 0)
return log_error_errno(errno, "Failed to duplicate master fd: %m");
@@ -711,6 +721,12 @@ static int start_transient_service(
return log_error_errno(errno, "Failed to unlock tty: %m");
}
+ if (!arg_no_block) {
+ r = bus_wait_for_jobs_new(bus, &w);
+ if (r < 0)
+ return log_error_errno(r, "Could not watch jobs: %m");
+ }
+
if (arg_unit) {
service = unit_name_mangle_with_suffix(arg_unit, MANGLE_NOGLOB, ".service");
if (!service)
@@ -751,12 +767,24 @@ static int start_transient_service(
if (r < 0)
return bus_log_create_error(r);
- r = sd_bus_call(bus, m, 0, &error, NULL);
+ r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0) {
log_error("Failed to start transient service unit: %s", bus_error_message(&error, -r));
return r;
}
+ if (w) {
+ const char *object;
+
+ r = sd_bus_message_read(reply, "o", &object);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ r = bus_wait_for_jobs_one(w, object, arg_quiet);
+ if (r < 0)
+ return r;
+ }
+
if (master >= 0) {
_cleanup_(pty_forward_freep) PTYForward *forward = NULL;
_cleanup_event_unref_ sd_event *event = NULL;