From e686391de1e7bf0121a179ae1b9b72ea384f37d7 Mon Sep 17 00:00:00 2001
From: Tomasz Sterna <tomek@xiaoka.com>
Date: Wed, 9 Mar 2011 17:27:35 +0100
Subject: [PATCH] Added AppVM version of xenstore-watch.

---
 appvm/Makefile         |  7 +++++--
 appvm/xenstore-watch.c | 28 ++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 2 deletions(-)
 create mode 100644 appvm/xenstore-watch.c

diff --git a/appvm/Makefile b/appvm/Makefile
index 6bb1dea..0ef375a 100644
--- a/appvm/Makefile
+++ b/appvm/Makefile
@@ -1,11 +1,14 @@
 CC=gcc
 CFLAGS=-Wall
-all:	qubes_penctl qubes_add_pendrive_script qvm-open-in-dvm
+all:	qubes_penctl qubes_add_pendrive_script qvm-open-in-dvm xenstore-watch
 qubes_penctl: qubes_penctl.o
 	$(CC) -o qubes_penctl qubes_penctl.o -lxenstore
 qubes_add_pendrive_script: qubes_add_pendrive_script.o
 	$(CC) -o qubes_add_pendrive_script qubes_add_pendrive_script.o -lxenstore
 qvm-open-in-dvm: qvm-open-in-dvm.o
 	 $(CC) -o qvm-open-in-dvm qvm-open-in-dvm.o -lxenstore
+xenstore-watch: xenstore-watch.o
+	$(CC) -o xenstore-watch xenstore-watch.o -lxenstore
+
 clean:
-	rm -f qubes_penctl qubes_add_pendrive_script qvm-open-in-dvm *.o *~
+	rm -f qubes_penctl qubes_add_pendrive_script qvm-open-in-dvm xenstore-watch *.o *~
diff --git a/appvm/xenstore-watch.c b/appvm/xenstore-watch.c
new file mode 100644
index 0000000..497ed29
--- /dev/null
+++ b/appvm/xenstore-watch.c
@@ -0,0 +1,28 @@
+#include <sys/types.h>
+#include <xs.h>
+#include <stdio.h>
+#include <stdlib.h>
+main(int argc, char **argv)
+{
+	struct xs_handle *xs;
+	unsigned int count;
+	char **vec;
+	char dummy;
+	if (argc != 2) {
+		fprintf(stderr, "usage: %s xenstore_path\n", argv[0]);
+		exit(1);
+	}
+	xs = xs_domain_open();
+	if (!xs) {
+		perror("xs_domain_open");
+		exit(1);
+	}
+	if (!xs_watch(xs, argv[1], &dummy)) {
+		perror("xs_watch");
+		exit(1);
+	}
+	vec = xs_read_watch(xs, &count);
+	free(vec);
+	vec = xs_read_watch(xs, &count);
+	free(vec);
+}