RTEMS C User's Guide
When a port is created, RTEMS generates a unique port
ID and assigns it to the created port until it is deleted. The
port ID may be obtained by either of two methods. First, as the
result of an invocation of the
rtems_port_create directive, the task
ID is stored in a user provided location. Second, the port ID
may be obtained later using the
rtems_port_ident directive. The port
ID is used by other dual-ported memory manager directives to
access this port.
RTEMS C User's Guide
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