From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Add an handler to process xenstore events.
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
target-xen/xenstore.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/target-xen/xenstore.c b/target-xen/xenstore.c
index c202f66..9f2e1ea 100644
--- a/target-xen/xenstore.c
+++ b/target-xen/xenstore.c
@@ -1,6 +1,18 @@
#include "hw/xen_backend.h"
#include "xenstore.h"
+static void xenstore_process_event(void *opaque)
+{
+ char **vec;
+ unsigned int num;
+
+ vec = xs_read_watch(xenstore, &num);
+ if (!vec)
+ return;
+
+ free(vec);
+}
+
int xen_dm_init(void)
{
xenstore = xs_daemon_open();
@@ -9,6 +21,9 @@ int xen_dm_init(void)
return -1;
}
+ if (qemu_set_fd_handler(xs_fileno(xenstore), xenstore_process_event, NULL,
NULL) < 0)
+ goto err;
+
xen_xc = xc_interface_open(NULL, NULL, 0);
if (xen_xc == NULL) {
xen_be_printf(NULL, 0, "can't open xen interface\n");
@@ -17,6 +32,7 @@ int xen_dm_init(void)
return 0;
err:
+ qemu_set_fd_handler(xs_fileno(xenstore), NULL, NULL, NULL);
xs_daemon_close(xenstore);
xenstore = NULL;
--
1.7.0.4
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