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
  18 #ifdef __cplusplus
  19 extern "C" {
  20 #endif
  21
  22 struct Error;
  23
  24 /* Callback to set Error; used to avoid linking glib to the DLL */
  25 typedef void (*ErrorSetFunc)(struct Error **errp,
  26                              const char *src, int line, const char *func,
  27                              int win32_err, const char *fmt, ...)
  28     GCC_FMT_ATTR(6, 7);
  29 typedef struct ErrorSet {
  30     ErrorSetFunc error_setg_win32_wrapper;
  31     struct Error **errp;        /* restriction: must not be null */
  32 } ErrorSet;
  33
  34 STDAPI requester_init(void);
  35 STDAPI requester_deinit(void);
  36
  37 typedef void (*QGAVSSRequesterFunc)(int *, ErrorSet *);
  38 void requester_freeze(int *num_vols, ErrorSet *errset);
  39 void requester_thaw(int *num_vols, ErrorSet *errset);
  40
  41 #ifdef __cplusplus
  42 }
  43 #endif
  44
  45 #endif