LXR qemu/include/scsi/pr-manager.h

   1#ifndef PR_MANAGER_H
   2#define PR_MANAGER_H
   3
   4#include "qom/object.h"
   5#include "qapi/visitor.h"
   6#include "qom/object_interfaces.h"
   7#include "block/aio.h"
   8
   9#define TYPE_PR_MANAGER "pr-manager"
  10
  11#define PR_MANAGER_CLASS(klass) \
  12     OBJECT_CLASS_CHECK(PRManagerClass, (klass), TYPE_PR_MANAGER)
  13#define PR_MANAGER_GET_CLASS(obj) \
  14     OBJECT_GET_CLASS(PRManagerClass, (obj), TYPE_PR_MANAGER)
  15#define PR_MANAGER(obj) \
  16     OBJECT_CHECK(PRManager, (obj), TYPE_PR_MANAGER)
  17
  18struct sg_io_hdr;
  19
  20typedef struct PRManager {
  21    /* <private> */
  22    Object parent;
  23} PRManager;
  24
  25/**
  26 * PRManagerClass:
  27 * @parent_class: the base class
  28 * @run: callback invoked in thread pool context
  29 */
  30typedef struct PRManagerClass {
  31    /* <private> */
  32    ObjectClass parent_class;
  33
  34    /* <public> */
  35    int (*run)(PRManager *pr_mgr, int fd, struct sg_io_hdr *hdr);
  36} PRManagerClass;
  37
  38BlockAIOCB *pr_manager_execute(PRManager *pr_mgr,
  39                               AioContext *ctx, int fd,
  40                               struct sg_io_hdr *hdr,
  41                               BlockCompletionFunc *complete,
  42                               void *opaque);
  43
  44#ifdef CONFIG_LINUX
  45PRManager *pr_manager_lookup(const char *id, Error **errp);
  46#else
  47static inline PRManager *pr_manager_lookup(const char *id, Error **errp)
  48{
  49    /* The classes do not exist at all!  */
  50    error_setg(errp, "No persistent reservation manager with id '%s'", id);
  51    return NULL;
  52}
  53#endif
  54
  55#endif
  56