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 18 struct sg_io_hdr; 19 20 typedef 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 */ 30 typedef 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 38 BlockAIOCB *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 45 PRManager *pr_manager_lookup(const char *id, Error **errp); 46 #else 47 static 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