block/qed-gencb.c

   1 /*
   2  * QEMU Enhanced Disk Format
   3  *
   4  * Copyright IBM, Corp. 2010
   5  *
   6  * Authors:
   7  *  Stefan Hajnoczi   <stefanha@linux.vnet.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU LGPL, version 2 or later.
  10  * See the COPYING.LIB file in the top-level directory.
  11  *
  12  */
  13
  14 #include "qed.h"
  15
  16 void *gencb_alloc(size_t len, BlockDriverCompletionFunc *cb, void *opaque)
  17 {
  18     GenericCB *gencb = qemu_malloc(len);
  19     gencb->cb = cb;
  20     gencb->opaque = opaque;
  21     return gencb;
  22 }
  23
  24 void gencb_complete(void *opaque, int ret)
  25 {
  26     GenericCB *gencb = opaque;
  27     BlockDriverCompletionFunc *cb = gencb->cb;
  28     void *user_opaque = gencb->opaque;
  29
  30     qemu_free(gencb);
  31     cb(user_opaque, ret);
  32 }