man pages section 3: Extended Library Functions, Volume 1

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Updated: July 2014
 
 

dat_ep_get_status(3DAT)

Name

dat_ep_get_status - provide a quick snapshot of the Endpoint

Synopsis

cc [ flag… ] file–ldat [ library… ] 
#include <dat/udat.h>

DAT_RETURN
    dat_ep_get_status (
    IN    DAT_EP_HANDLE    ep_handle,
    OUT   DAT_EP_STATE     *ep_state,
    OUT   DAT_BOOLEAN      *recv_idle,
    OUT   DAT_BOOLEAN      *request_idle
    )

Parameters

ep_handle

Handle for an instance of the Endpoint.

ep_state

Current state of the Endpoint.

recv_idle

Status of the incoming DTOs on the Endpoint.

request_idle

Status of the outgoing DTOs and RMR Bind operations on the Endpoint.

Description

the dat_ep_get_status() function provides the Consumer a quick snapshot of the Endpoint. The snapshot consists of the Endpoint state and whether there are outstanding or in-progress, incoming or outgoing DTOs. Incoming DTOs consist of Receives. Outgoing DTOs consist of the Requests, Send, RDMA Read, RDMA Write, and RMR Bind.

The ep_state parameter returns the value of the current state of the Endpoint ep_handle. State value is one of the following: DAT_EP_STATE_UNCONNECTED, DAT_EP_STATE_RESERVED, DAT_EP_STATE_PASSIVE_CONNECTION_PENDING , DAT_EP_STATE_ACTIVE_CONNECTION_PENDING, DAT_EP_STATE_TENTATIVE_CONNECTION_PENDING, DAT_EP_STATE_CONNECTED, DAT_EP_STATE_DISCONNECT_PENDING, or DAT_EP_STATE_DISCONNECTED.

A recv_idle value of DAT_TRUE specifies that there are no outstanding or in-progress Receive DTOs at the Endpoint, and DAT_FALSE otherwise.

A request_idle value of DAT_TRUE specifies that there are no outstanding or in-progress Send, RDMA Read, and RDMA Write DTOs, and RMR Binds at the Endpoint, and DAT_FALSE otherwise.

This call provides a snapshot of the Endpoint status only. No heroic synchronization with DTO queuing or processing is implied.

Return Values

DAT_SUCCESS

The operation was successful.

DAT_INVALID_HANDLE

The ep_handle parameter is invalid.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
Safe
Standard
uDAPL, 1.1, 1.2

See Also

libdat(3LIB), attributes(5)