LXR qemu/include/hw/xen/xen-bus-helper.h

   1/*
   2 * Copyright (c) 2018  Citrix Systems Inc.
   3 *
   4 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5 * See the COPYING file in the top-level directory.
   6 */
   7
   8#ifndef HW_XEN_BUS_HELPER_H
   9#define HW_XEN_BUS_HELPER_H
  10
  11#include "hw/xen/xen_common.h"
  12
  13const char *xs_strstate(enum xenbus_state state);
  14
  15void xs_node_create(struct xs_handle *xsh,  xs_transaction_t tid,
  16                    const char *node, struct xs_permissions perms[],
  17                    unsigned int nr_perms, Error **errp);
  18void xs_node_destroy(struct xs_handle *xsh,  xs_transaction_t tid,
  19                     const char *node, Error **errp);
  20
  21/* Write to node/key unless node is empty, in which case write to key */
  22void xs_node_vprintf(struct xs_handle *xsh,  xs_transaction_t tid,
  23                     const char *node, const char *key, Error **errp,
  24                     const char *fmt, va_list ap)
  25    GCC_FMT_ATTR(6, 0);
  26void xs_node_printf(struct xs_handle *xsh,  xs_transaction_t tid,
  27                    const char *node, const char *key, Error **errp,
  28                    const char *fmt, ...)
  29    GCC_FMT_ATTR(6, 7);
  30
  31/* Read from node/key unless node is empty, in which case read from key */
  32int xs_node_vscanf(struct xs_handle *xsh,  xs_transaction_t tid,
  33                   const char *node, const char *key, Error **errp,
  34                   const char *fmt, va_list ap);
  35int xs_node_scanf(struct xs_handle *xsh,  xs_transaction_t tid,
  36                  const char *node, const char *key, Error **errp,
  37                  const char *fmt, ...);
  38
  39/* Watch node/key unless node is empty, in which case watch key */
  40void xs_node_watch(struct xs_handle *xsh, const char *node, const char *key,
  41                   char *token, Error **errp);
  42void xs_node_unwatch(struct xs_handle *xsh, const char *node, const char *key,
  43                     const char *token, Error **errp);
  44
  45#endif /* HW_XEN_BUS_HELPER_H */
  46