From 9b364545435d2b65fcf73519b3064bb7c28093b7 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Fri, 15 Aug 2014 21:04:07 +0200
Subject: [PATCH] sd-event: add API to access epoll_fd

This is a prerequisite for integrating sd-event into an external
event loop.
---
 src/libsystemd/libsystemd.sym.m4   | 1 +
 src/libsystemd/sd-event/sd-event.c | 8 ++++++++
 src/systemd/sd-event.h             | 1 +
 3 files changed, 10 insertions(+)

diff --git a/src/libsystemd/libsystemd.sym.m4 b/src/libsystemd/libsystemd.sym.m4
index 415d89afbe..3fc9983f98 100644
--- a/src/libsystemd/libsystemd.sym.m4
+++ b/src/libsystemd/libsystemd.sym.m4
@@ -374,6 +374,7 @@ global:
         sd_event_loop;
         sd_event_exit;
         sd_event_now;
+        sd_event_get_fd;
         sd_event_get_state;
         sd_event_get_tid;
         sd_event_get_exit_code;
diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
index 7917ab934a..e062997a80 100644
--- a/src/libsystemd/sd-event/sd-event.c
+++ b/src/libsystemd/sd-event/sd-event.c
@@ -2361,6 +2361,14 @@ finish:
         return r;
 }
 
+_public_ int sd_event_get_fd(sd_event *e) {
+
+        assert_return(e, -EINVAL);
+        assert_return(!event_pid_changed(e), -ECHILD);
+
+        return e->epoll_fd;
+}
+
 _public_ int sd_event_get_state(sd_event *e) {
         assert_return(e, -EINVAL);
         assert_return(!event_pid_changed(e), -ECHILD);
diff --git a/src/systemd/sd-event.h b/src/systemd/sd-event.h
index 5d9b3be6c7..d96852a763 100644
--- a/src/systemd/sd-event.h
+++ b/src/systemd/sd-event.h
@@ -90,6 +90,7 @@ int sd_event_exit(sd_event *e, int code);
 
 int sd_event_now(sd_event *e, clockid_t clock, uint64_t *usec);
 
+int sd_event_get_fd(sd_event *e);
 int sd_event_get_state(sd_event *e);
 int sd_event_get_tid(sd_event *e, pid_t *tid);
 int sd_event_get_exit_code(sd_event *e, int *code);