include/xen/xenbus.h

46 #include <xen/interface/xen.h>
47 #include <xen/interface/grant_table.h>
48 #include <xen/interface/io/xenbus.h>
49 #include <xen/interface/io/xs_wire.h>
50 #include <xen/interface/event_channel.h>
55 /* Register callback to watch this node. */
61 	const char *node;  member
155 			const char *dir, const char *node, unsigned int *num);
157 		  const char *dir, const char *node, unsigned int *len);
159 		 const char *dir, const char *node, const char *string);
161 		 const char *dir, const char *node);
163 		  const char *dir, const char *node);
164 int xenbus_rm(struct xenbus_transaction t, const char *dir, const char *node);
168 /* Single read and scanf: returns -errno or num scanned if > 0. */
171 		 const char *dir, const char *node, const char *fmt, ...);
174 unsigned int xenbus_read_unsigned(const char *dir, const char *node,
177 /* Single printf and write: returns -errno or 0. */
180 		  const char *dir, const char *node, const char *fmt, ...);
182 /* Generic read function: NULL-terminated triples of name,
183  * sprintf-style type string, and pointer. Returns 0 or errno.*/
202 		str = ERR_PTR(-ERANGE);			\
207 #define XENBUS_EXIST_ERR(err) ((err) == -ENOENT || (err) == -ERANGE)