выделить и освободить объект домена потока (allocate and deallocate thread domain object)
Имя (Name)
ibv_alloc_td(), ibv_dealloc_td() - allocate and deallocate thread
domain object
Синопсис (Synopsis)
#include <infiniband/verbs.h>
struct ibv_td *ibv_alloc_td(struct ibv_context *context,
struct ibv_td_init_attr *init_attr);
int ibv_dealloc_td(struct ibv_td *td);
Описание (Description)
ibv_alloc_td() allocates a thread domain object for the RDMA
device context context.
The thread domain object defines how the verbs libraries and
provider will use locks and additional hardware capabilities to
achieve best performance for handling multi-thread or single-
thread protection. An application assigns verbs resources to a
thread domain when it creates a verbs object.
If the ibv_td object is specified then any objects created under
this thread domain will disable internal locking designed to
protect against concurrent access to that object from multiple
user threads. By default all verbs objects are safe for multi-
threaded access, whether or not a thread domain is specified.
A struct ibv_td can be added to a parent domain via
ibv_alloc_parent_domain() and then the parent domain can be used
to create verbs objects.
ibv_dealloc_td() will deallocate the thread domain td. All
resources created with the td should be destroyed prior to
deallocating the td.
Возвращаемое значение (Return value)
ibv_alloc_td() returns a pointer to the allocated struct ibv_td
object, or NULL if the request fails (and sets errno to indicate
the failure reason).
ibv_dealloc_td() returns 0 on success, or the value of errno on
failure (which indicates the failure reason).
Смотри также (See also)
ibv_alloc_parent_domain(3),
