xenbus.c File Reference

#include <xtf/atomic.h>
#include <xtf/bitops.h>
#include <xtf/hypercall.h>
#include <xtf/lib.h>
#include <xtf/traps.h>
#include <xtf/xenbus.h>

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Functions
void	init_xenbus (xenbus_interface_t *ring, evtchn_port_t port)
static void	xenbus_write (const void *data, size_t len)
static void	xenbus_read (void *data, size_t len)
int	xenstore_init (void)
	Initialise XTF ready for xenstore communication. More...
const char *	xenstore_read (const char *path)
	Issue a XS_READ operation for key, waiting synchronously for the reply. More...

Variables
static xenbus_interface_t *	xb_ring
static evtchn_port_t	xb_port
static char	payload [XENSTORE_PAYLOAD_MAX+1]

Function Documentation

init_xenbus()

void init_xenbus	(	xenbus_interface_t *	ring,
		evtchn_port_t	port
	)

Definition at line 12 of file xenbus.c.

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xenbus_write()

static void xenbus_write ( const void *  data, size_t  len  )

static

Definition at line 25 of file xenbus.c.

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xenbus_read()

static void xenbus_read ( void *  data, size_t  len  )

static

Definition at line 69 of file xenbus.c.

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xenstore_init()

int xenstore_init

(

void

)

Initialise XTF ready for xenstore communication.

May fail if there is no xenbus ring found.

Definition at line 109 of file xenbus.c.

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xenstore_read()

const char* xenstore_read

(

const char *

key

)

Issue a XS_READ operation for key, waiting synchronously for the reply.

Returns NULL on error. The current implementation unmarshals data into a static buffer, so the return pointer is only valid until a subsequent xenstore operation.

Definition at line 115 of file xenbus.c.

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Variable Documentation

xb_ring

xenbus_interface_t* xb_ring

static

Definition at line 8 of file xenbus.c.

xb_port

evtchn_port_t xb_port

static

Definition at line 9 of file xenbus.c.

payload

char payload[XENSTORE_PAYLOAD_MAX+1]

static

Definition at line 10 of file xenbus.c.