|  | #ifndef GIT_FSCK_H | 
|  | #define GIT_FSCK_H | 
|  |  | 
|  | #define FSCK_ERROR 1 | 
|  | #define FSCK_WARN 2 | 
|  |  | 
|  | /* | 
|  | * callback function for fsck_walk | 
|  | * type is the expected type of the object or OBJ_ANY | 
|  | * the return value is: | 
|  | *     0	everything OK | 
|  | *     <0	error signaled and abort | 
|  | *     >0	error signaled and do not abort | 
|  | */ | 
|  | typedef int (*fsck_walk_func)(struct object *obj, int type, void *data); | 
|  |  | 
|  | /* callback for fsck_object, type is FSCK_ERROR or FSCK_WARN */ | 
|  | typedef int (*fsck_error)(struct object *obj, int type, const char *err, ...); | 
|  |  | 
|  | int fsck_error_function(struct object *obj, int type, const char *fmt, ...); | 
|  |  | 
|  | /* descend in all linked child objects | 
|  | * the return value is: | 
|  | *    -1	error in processing the object | 
|  | *    <0	return value of the callback, which lead to an abort | 
|  | *    >0	return value of the first sigaled error >0 (in the case of no other errors) | 
|  | *    0		everything OK | 
|  | */ | 
|  | int fsck_walk(struct object *obj, fsck_walk_func walk, void *data); | 
|  | int fsck_object(struct object *obj, int strict, fsck_error error_func); | 
|  |  | 
|  | #endif |