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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/systemctl/systemctl-daemon-reload.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/systemctl/systemctl-daemon-reload.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/systemctl/systemctl-daemon-reload.c b/src/systemctl/systemctl-daemon-reload.c new file mode 100644 index 0000000..7e9b456 --- /dev/null +++ b/src/systemctl/systemctl-daemon-reload.c @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "bus-error.h" +#include "bus-locator.h" +#include "systemctl-daemon-reload.h" +#include "systemctl-util.h" +#include "systemctl.h" + +int daemon_reload(enum action action, bool graceful) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + const char *method; + sd_bus *bus; + int r; + + r = acquire_bus(BUS_MANAGER, &bus); + if (r < 0) + return r; + + polkit_agent_open_maybe(); + + switch (action) { + + case ACTION_RELOAD: + method = "Reload"; + break; + + case ACTION_REEXEC: + method = "Reexecute"; + break; + + default: + return -EINVAL; + } + + r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, method); + if (r < 0) + return bus_log_create_error(r); + + /* Reloading the daemon may take long, hence set a longer timeout here */ + r = sd_bus_call(bus, m, DAEMON_RELOAD_TIMEOUT_SEC, &error, NULL); + + /* On reexecution, we expect a disconnect, not a reply */ + if (IN_SET(r, -ETIMEDOUT, -ECONNRESET) && action == ACTION_REEXEC) + return 1; + if (r < 0) { + if (graceful) { /* If graceful mode is selected, debug log, but don't fail */ + log_debug_errno(r, "%s daemon failed via the bus, ignoring: %s", + method, bus_error_message(&error, r)); + return 0; + } + + return log_error_errno(r, "%s daemon failed: %s", + method, bus_error_message(&error, r)); + } + + return 1; +} + +int verb_daemon_reload(int argc, char *argv[], void *userdata) { + enum action a; + int r; + + assert(argc >= 1); + + if (streq(argv[0], "daemon-reexec")) + a = ACTION_REEXEC; + else if (streq(argv[0], "daemon-reload")) + a = ACTION_RELOAD; + else + assert_not_reached(); + + r = daemon_reload(a, /* graceful= */ false); + if (r < 0) + return r; + + return 0; +} |