From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Wed, 8 Nov 2023 22:57:27 +0000 (+0100)
Subject: busctl: send READY=1 when we become a monitor
X-Git-Tag: v255-rc2~68^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c39a6ab7898efb2c825ab15c3b168f8412c9b704;p=thirdparty%2Fsystemd.git

busctl: send READY=1 when we become a monitor

This is pretty much the same stuff as `resolvectl monitor` does, and
allows us to run `busctl monitor` in a Type=notify unit which ensures
that `busctl` is really listening for messages once the unit is marked
as started.
---

diff --git a/src/busctl/busctl.c b/src/busctl/busctl.c
index d13d5bef6d9..9f82198f2f1 100644
--- a/src/busctl/busctl.c
+++ b/src/busctl/busctl.c
@@ -1311,6 +1311,8 @@ static int monitor(int argc, char **argv, int (*dump)(sd_bus_message *m, FILE *f
         if (!arg_quiet && arg_json_format_flags == JSON_FORMAT_OFF)
                 log_info("Monitoring bus message stream.");
 
+        (void) sd_notify(/* unset_environment=false */ false, "READY=1");
+
         for (;;) {
                 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;