tools/xenstored: move systemd handling to posix.c

Move systemd handling to a new late_init() function in posix.c.

This prepares a future removal of the NO_SOCKETS macro.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>

tools/xenstored/core.c

@@ -54,16 +54,6 @@
 #include "control.h"
 #include "lu.h"
 
-#ifndef NO_SOCKETS
-#if defined(HAVE_SYSTEMD)
-#define XEN_SYSTEMD_ENABLED 1
-#endif
-#endif
-
-#if defined(XEN_SYSTEMD_ENABLED)
-#include <systemd/sd-daemon.h>
-#endif
-
 extern xenevtchn_handle *xce_handle; /* in domain.c */
 static int xce_pollfd_idx = -1;
 static struct pollfd *fds;
@@ -2938,12 +2928,7 @@ int main(int argc, char *argv[])
 	/* Get ready to listen to the tools. */
 	initialize_fds(&sock_pollfd_idx, &timeout);
 
-#if defined(XEN_SYSTEMD_ENABLED)
-	if (!live_update) {
-		sd_notify(1, "READY=1");
-		fprintf(stderr, SD_NOTICE "xenstored is ready\n");
-	}
-#endif
+	late_init(live_update);
 
 	/* Main loop. */
 	for (;;) {

tools/xenstored/core.h

@@ -385,6 +385,7 @@ static inline bool domain_is_unprivileged(const struct connection *conn)
 /* Return the event channel used by xenbus. */
 evtchn_port_t get_xenbus_evtchn(void);
 void early_init(bool live_update, bool dofork, const char *pidfile);
+void late_init(bool live_update);
 
 void init_sockets(void);
 extern int reopen_log_pipe[2];

tools/xenstored/minios.c

@@ -49,3 +49,7 @@ void unmap_xenbus(void *interface)
 void early_init(bool live_update, bool dofork, const char *pidfile)
 {
 }
+
+void late_init(bool live_update)
+{
+}

tools/xenstored/posix.c

@@ -24,6 +24,9 @@
 #include <stdlib.h>
 #include <syslog.h>
 #include <sys/mman.h>
+#if defined(HAVE_SYSTEMD)
+#include <systemd/sd-daemon.h>
+#endif
 #include <xen-tools/xenstore-common.h>
 
 #include "utils.h"
@@ -184,3 +187,13 @@ void early_init(bool live_update, bool dofork, const char *pidfile)
 	if (!live_update)
 		init_sockets();
 }
+
+void late_init(bool live_update)
+{
+#if defined(HAVE_SYSTEMD)
+	if (!live_update) {
+		sd_notify(1, "READY=1");
+		fprintf(stderr, SD_NOTICE "xenstored is ready\n");
+	}
+#endif
+}