1 #ifndef PR_MANAGER_H 2 #define PR_MANAGER_H 3 4 #include "qom/object.h" 5 #include "qapi/qmp/qdict.h" 6 #include "qapi/visitor.h" 7 #include "qom/object_interfaces.h" 8 #include "block/aio.h" 9 10 #define TYPE_PR_MANAGER "pr-manager" 11 12 #define PR_MANAGER_CLASS(klass) \ 13 OBJECT_CLASS_CHECK(PRManagerClass, (klass), TYPE_PR_MANAGER) 14 #define PR_MANAGER_GET_CLASS(obj) \ 15 OBJECT_GET_CLASS(PRManagerClass, (obj), TYPE_PR_MANAGER) 16 #define PR_MANAGER(obj) \ 17 OBJECT_CHECK(PRManager, (obj), TYPE_PR_MANAGER) 18 19 struct sg_io_hdr; 20 21 typedef struct PRManager { 22 /* <private> */ 23 Object parent; 24 } PRManager; 25 26 /** 27 * PRManagerClass: 28 * @parent_class: the base class 29 * @run: callback invoked in thread pool context 30 */ 31 typedef struct PRManagerClass { 32 /* <private> */ 33 ObjectClass parent_class; 34 35 /* <public> */ 36 int (*run)(PRManager *pr_mgr, int fd, struct sg_io_hdr *hdr); 37 } PRManagerClass; 38 39 BlockAIOCB *pr_manager_execute(PRManager *pr_mgr, 40 AioContext *ctx, int fd, 41 struct sg_io_hdr *hdr, 42 BlockCompletionFunc *complete, 43 void *opaque); 44 45 #ifdef CONFIG_LINUX 46 PRManager *pr_manager_lookup(const char *id, Error **errp); 47 #else 48 static inline PRManager *pr_manager_lookup(const char *id, Error **errp) 49 { 50 /* The classes do not exist at all! */ 51 error_setg(errp, "No persistent reservation manager with id '%s'", id); 52 return NULL; 53 } 54 #endif 55 56 #endif 57