From 8f726607ece2b49980152a53845aefde858768a5 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 13 Dec 2013 04:14:25 +0100
Subject: [PATCH] event: allow to query userdata and watchdog state

---
 src/libsystemd-bus/libsystemd-bus.sym |  2 ++
 src/libsystemd-bus/sd-event.c         | 19 +++++++++++++++++++
 src/systemd/sd-event.h                |  2 ++
 3 files changed, 23 insertions(+)

diff --git a/src/libsystemd-bus/libsystemd-bus.sym b/src/libsystemd-bus/libsystemd-bus.sym
index f3dbb76..7dbfcf9 100644
--- a/src/libsystemd-bus/libsystemd-bus.sym
+++ b/src/libsystemd-bus/libsystemd-bus.sym
@@ -239,6 +239,7 @@ global:
         sd_event_get_now_realtime;
         sd_event_get_now_monotonic;
         sd_event_set_watchdog;
+        sd_event_get_watchdog;
 
         sd_event_source_ref;
         sd_event_source_unref;
@@ -250,6 +251,7 @@ global:
         sd_event_source_get_enabled;
         sd_event_source_set_enabled;
         sd_event_source_get_userdata;
+        sd_event_source_set_userdata;
         sd_event_source_get_io_fd;
         sd_event_source_get_io_events;
         sd_event_source_set_io_events;
diff --git a/src/libsystemd-bus/sd-event.c b/src/libsystemd-bus/sd-event.c
index 6af52ec..65ee12d 100644
--- a/src/libsystemd-bus/sd-event.c
+++ b/src/libsystemd-bus/sd-event.c
@@ -1371,6 +1371,17 @@ _public_ void* sd_event_source_get_userdata(sd_event_source *s) {
         return s->userdata;
 }
 
+_public_ void *sd_event_source_set_userdata(sd_event_source *s, void *userdata) {
+        void *ret;
+
+        assert_return(s, NULL);
+
+        ret = s->userdata;
+        s->userdata = userdata;
+
+        return ret;
+}
+
 static usec_t sleep_between(sd_event *e, usec_t a, usec_t b) {
         usec_t c;
         assert(e);
@@ -2078,6 +2089,7 @@ _public_ int sd_event_set_watchdog(sd_event *e, int b) {
         int r;
 
         assert_return(e, -EINVAL);
+        assert_return(!event_pid_changed(e), -ECHILD);
 
         if (e->watchdog == !!b)
                 return e->watchdog;
@@ -2133,3 +2145,10 @@ fail:
         e->watchdog_fd = -1;
         return r;
 }
+
+_public_ int sd_event_get_watchdog(sd_event *e) {
+        assert_return(e, -EINVAL);
+        assert_return(!event_pid_changed(e), -ECHILD);
+
+        return e->watchdog;
+}
diff --git a/src/systemd/sd-event.h b/src/systemd/sd-event.h
index c7c4506..cf949be 100644
--- a/src/systemd/sd-event.h
+++ b/src/systemd/sd-event.h
@@ -94,6 +94,7 @@ int sd_event_get_exit_code(sd_event *e, int *code);
 int sd_event_get_now_realtime(sd_event *e, uint64_t *usec);
 int sd_event_get_now_monotonic(sd_event *e, uint64_t *usec);
 int sd_event_set_watchdog(sd_event *e, int b);
+int sd_event_get_watchdog(sd_event *e);
 
 sd_event_source* sd_event_source_ref(sd_event_source *s);
 sd_event_source* sd_event_source_unref(sd_event_source *s);
@@ -105,6 +106,7 @@ int sd_event_source_set_priority(sd_event_source *s, int priority);
 int sd_event_source_get_enabled(sd_event_source *s, int *enabled);
 int sd_event_source_set_enabled(sd_event_source *s, int enabled);
 void* sd_event_source_get_userdata(sd_event_source *s);
+void* sd_event_source_set_userdata(sd_event_source *s, void *userdata);
 int sd_event_source_get_io_fd(sd_event_source *s);
 int sd_event_source_get_io_events(sd_event_source *s, uint32_t* events);
 int sd_event_source_set_io_events(sd_event_source *s, uint32_t events);
-- 
2.7.4