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xen_backend: introduce xenstore_read_uint64 and xenstore_read_fe_uint64

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Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Stefano Stabellini 2013-12-18 19:17:31 +00:00
parent 9d9de254c2
commit 4aba9eb138
2 changed files with 20 additions and 0 deletions
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18
hw/xen/xen_backend.c
View File

@ -111,6 +111,19 @@ int xenstore_read_int(const char *base, const char *node, int *ival)
return rc;
}
int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval)
{
char *val;
int rc = -1;
val = xenstore_read_str(base, node);
if (val && 1 == sscanf(val, "%"SCNu64, uval)) {
rc = 0;
}
g_free(val);
return rc;
}
int xenstore_write_be_str(struct XenDevice *xendev, const char *node, const char *val)
{
return xenstore_write_str(xendev->be, node, val);
@ -146,6 +159,11 @@ int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival)
return xenstore_read_int(xendev->fe, node, ival);
}
int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node, uint64_t *uval)
{
return xenstore_read_uint64(xendev->fe, node, uval);
}
/* ------------------------------------------------------------- */
const char *xenbus_strstate(enum xenbus_state state)

2
include/hw/xen/xen_backend.h
View File

@ -74,6 +74,8 @@ char *xenstore_read_be_str(struct XenDevice *xendev, const char *node);
int xenstore_read_be_int(struct XenDevice *xendev, const char *node, int *ival);
char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node);
int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival);
int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval);
int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node, uint64_t *uval);
const char *xenbus_strstate(enum xenbus_state state);
struct XenDevice *xen_be_find_xendev(const char *type, int dom, int dev);