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#include <stdio.h>
#include <stdlib.h>
#include <xs.h>
/* ------------------------------------------------------------- */
int main(int argc, char *argv[])
{
struct xs_handle *xenstore;
struct xs_transaction_handle *xst;
char *xs_value = NULL, **vec;
char *value;
unsigned int count;
xenstore = xs_daemon_open_readonly();
if (NULL == xenstore) {
fprintf(stderr,"can't connect to %s\n",xs_daemon_socket_ro());
exit(1);
}
xs_watch(xenstore, "/", "token");
for (;;) {
vec = xs_read_watch(xenstore, &count);
if (NULL == vec) {
fprintf(stderr,"xs_read_watch() failed\n");
exit(1);
}
switch (vec[XS_WATCH_PATH][0]) {
case '/':
xst = xs_transaction_start(xenstore);
if (NULL != xst) {
xs_value = xs_read(xenstore, xst, vec[XS_WATCH_PATH], NULL);
xs_transaction_end(xenstore, xst, 0);
if (NULL == xs_value)
value = "<deleted>";
else
value = xs_value;
} else {
value = "<error>";
}
break;
default:
value = "<null>";
break;
}
fprintf(stderr,"%-64s : \"%s\"\n", vec[XS_WATCH_PATH], value);
if (xs_value) {
free(xs_value);
xs_value = NULL;
}
free(vec);
}
}
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