qga/vss-win32/requester.h

   1 /*
   2  * QEMU Guest Agent VSS requester declarations
   3  *
   4  * Copyright Hitachi Data Systems Corp. 2013
   5  *
   6  * Authors:
   7  *  Tomoki Sekiyama   <tomoki.sekiyama@hds.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef VSS_WIN32_REQUESTER_H
  14 #define VSS_WIN32_REQUESTER_H
  15
  16 #include <basetyps.h>           /* STDAPI */
  17 #include "qemu/compiler.h"
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 /* Callback to set Error; used to avoid linking glib to the DLL */
  24 typedef void (*ErrorSetFunc)(void **errp, int win32_err, int err_class,
  25                              const char *fmt, ...) GCC_FMT_ATTR(4, 5);
  26 typedef struct ErrorSet {
  27     ErrorSetFunc error_set;
  28     void **errp;
  29     int err_class;
  30 } ErrorSet;
  31
  32 STDAPI requester_init(void);
  33 STDAPI requester_deinit(void);
  34
  35 typedef void (*QGAVSSRequesterFunc)(int *, ErrorSet *);
  36 void requester_freeze(int *num_vols, ErrorSet *errset);
  37 void requester_thaw(int *num_vols, ErrorSet *errset);
  38
  39 #ifdef __cplusplus
  40 }
  41 #endif
  42
  43 #endif