| #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, ...); | 
 |  | 
 | __attribute__((format (printf, 3, 4))) | 
 | 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 signaled 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 |