diff options
Diffstat (limited to 'hal/obj.h')
| -rw-r--r-- | hal/obj.h | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -9,4 +9,41 @@ #include "arch/x86_64/hal/obj.h" #endif +typedef struct jove_objdir +{ + jove_obj_t entries[JOVE_OBJDIR_ENTRIES]; +} jove_objdir_t; + +/*Locks the mutex of the kernel object provided. Returns the locked version. */ +jove_owned_obj_t *obj_take(jove_obj_t *obj); +/*Unlocks the mutex of the kernel object provided. Returns the unlocked version. */ +jove_obj_t *obj_release(jove_owned_obj_t *obj); + +/*Converts the value pointer of the object into a pointer to kernel memory.*/ +void *obj_deref(jove_owned_obj_t *obj); + +/*Getters and setters for accessing the type field of the kernel object. */ +uint8_t obj_gettype(jove_owned_obj_t *obj); +uint8_t obj_peektype(jove_obj_t obj); +void obj_settype(jove_owned_obj_t *obj, uint8_t type); + +/*Getters and setters for accessing the value field of the kernel object. */ +uintmax_t obj_getvalue(jove_owned_obj_t *obj); +void obj_setvalue(jove_owned_obj_t *obj, uintmax_t value); + +/*Returns the n'th entry of the object directory passed. + * If the passed object is not an objdir, returns NULL and sets errno to EBADOBJ. + * If the passed entry index is out of bounds, returns NULL and sets errno to EOOB.*/ +jove_owned_obj_t *objdir_getlocal(jove_owned_obj_t *objdir_obj, uint16_t entry); +jove_obj_t objdir_peeklocal(jove_owned_obj_t *objdir_obj, uint16_t entry); + +/*Recursively seeks through an object directory for an object following the passed + * path variable. + * If the path length is zero, returns the passed object. + * If the passed object is not an objdir, returns NULL and sets errno to EBADOBJ. + * If any object excluding the object at the end of the path is not an objdir, + * returns NULL and sets errno to EBADOBJ. + * If any entry in the path is out of bounds, returns NULL and sets errno to EBADOBJ.*/ +jove_owned_obj_t *objdir_getobj(jove_owned_obj_t *objdir_obj, const uint16_t *path, size_t path_len); + #endif |