diff options
Diffstat (limited to 'hal')
| -rw-r--r-- | hal/obj.h | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -16,6 +16,7 @@ typedef struct jove_objdir /*Locks the mutex of the kernel object provided. Returns the locked version. */ jove_owned_obj_t *obj_take(jove_obj_t *obj); +jove_owned_obj_t *obj_trytake(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); @@ -35,6 +36,8 @@ void obj_setvalue(jove_owned_obj_t *obj, uintmax_t value); * 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); +/*Same as objdir_getlocal except does not block if entry obj is taken.*/ +jove_owned_obj_t *objdir_trygetlocal(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 @@ -45,5 +48,7 @@ jove_obj_t objdir_peeklocal(jove_owned_obj_t *objdir_obj, uint16_t entry); * 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); +/*Same as objdir_getobj but does not block if child objects are locked.*/ +jove_owned_obj_t *objdir_trygetobj(jove_owned_obj_t *objdir_obj, const uint16_t *path, size_t path_len); #endif |