diff options
Diffstat (limited to 'sys/xen/xenbus/xenbusvar.h')
| -rw-r--r-- | sys/xen/xenbus/xenbusvar.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/sys/xen/xenbus/xenbusvar.h b/sys/xen/xenbus/xenbusvar.h index 55d7f29..bf2a342 100644 --- a/sys/xen/xenbus/xenbusvar.h +++ b/sys/xen/xenbus/xenbusvar.h @@ -51,8 +51,6 @@ #include <xen/xenstore/xenstorevar.h> -#include "xenbus_if.h" - /* XenBus allocations including XenStore data returned to clients. */ MALLOC_DECLARE(M_XENBUS); @@ -116,6 +114,8 @@ XenbusState xenbus_read_driver_state(const char *path); * must be stable for the lifetime of the watch. * \param callback The function to call when XenStore objects at or below * path are modified. + * \param cb_data Client data that can be retrieved from the watch object + * during the callback. * * \return On success, 0. Otherwise an errno value indicating the * type of failure. @@ -126,7 +126,8 @@ XenbusState xenbus_read_driver_state(const char *path); */ int xenbus_watch_path(device_t dev, char *path, struct xs_watch *watch, - xs_watch_cb_t *callback); + xs_watch_cb_t *callback, + uintptr_t cb_data); /** * Initialize and register a watch at path/path2 in the XenStore. @@ -138,6 +139,8 @@ int xenbus_watch_path(device_t dev, char *path, * must be stable for the lifetime of the watch. * \param callback The function to call when XenStore objects at or below * path are modified. + * \param cb_data Client data that can be retrieved from the watch object + * during the callback. * * \return On success, 0. Otherwise an errno value indicating the * type of failure. @@ -153,7 +156,8 @@ int xenbus_watch_path(device_t dev, char *path, */ int xenbus_watch_path2(device_t dev, const char *path, const char *path2, struct xs_watch *watch, - xs_watch_cb_t *callback); + xs_watch_cb_t *callback, + uintptr_t cb_data); /** * Grant access to the given ring_mfn to the peer of the given device. @@ -275,4 +279,16 @@ const char *xenbus_strstate(enum xenbus_state state); */ int xenbus_dev_is_online(device_t dev); +/** + * Default callback invoked when a change to the local XenStore sub-tree + * for a device is modified. + * + * \param dev The XenBus device whose tree was modified. + * \param path The tree relative sub-path to the modified node. The empty + * string indicates the root of the tree was destroyed. + */ +void xenbus_localend_changed(device_t dev, const char *path); + +#include "xenbus_if.h" + #endif /* _XEN_XENBUS_XENBUSVAR_H */ |
