This function creates and attaches a remote message proxy to task. The task must already have a local proxy, which the remote proxy is associated with.
The remote proxy is activated by a call to qnx_trigger by any task on its node. A call to qnx_trigger on the remote proxy causes a subsequent call to qnx_trigger on its associated local proxy. The receiving task sees no difference between a message from a local proxy or a remote proxy.
If the task's own node number or zero is specified for node, a local proxy is created instead of a remote proxy.
In case of error, the following errnos are possible:
EINVAL Invalid proxy.
EPERM Proxy does not belong to task specified.
ESRCH Proxy does not exist.