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# ORB_Constants.h File Reference

`#include "tao/Basic_Types.h"`

Include dependency graph for ORB_Constants.h:

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## Namespaces
namespace | CORBA
namespace | TAO
## TAO-Specific System Exception Minor Code Values
These system exception minor code values are specific to TAO.
const CORBA::ULong | TAO_DEFAULT_MINOR_CODE = TAO::VMCID
| TAO VMCID assigned by the OMG.
const CORBA::ULong | TAO_MAX_MINOR_CODE = TAO::MAX_MINOR_CODE
| Maximum allowed system exception minor code.
## TAO-Specific Profile IDs
The TAO `IOP::ProfileId` range `0x54414f00` - `0x54414f0f` has been reserved with the OMG. Note: It is *NOT* necessary to list your own protocols here. The values below are subject to change at any point.
const CORBA::ULong | TAO_TAG_UIOP_PROFILE = 0x54414f00U
| Local IPC (Unix Domain).
const CORBA::ULong | TAO_TAG_SHMEM_PROFILE = 0x54414f02U
| Shared memory.
const CORBA::ULong | TAO_TAG_DIOP_PROFILE = 0x54414f04U
| UDP.
const CORBA::ULong | TAO_TAG_UIPMC_PROFILE = 0x54414f0CU
| Unreliable IP Multicast.
const CORBA::ULong | TAO_TAG_SCIOP_PROFILE = 0x54414f0EU
| SCIOP.
const CORBA::ULong | TAO_TAG_NSKFS_PROFILE = 0x00003039U
| Tandem (HP) File System Protocol.
const CORBA::ULong | TAO_TAG_NSKPW_PROFILE = 0x0000303AU
| Tandem (HP) Pathsend Protocol.
const int | IPDSFIELD_DSCP_DEFAULT = 0x00
| Local IPC (Unix Domain).
## Location Encoding
The location encoding is the 5 bits, after the @ errno encoding.
const CORBA::ULong | TAO_INVOCATION_LOCATION_FORWARD_MINOR_CODE = (0x01U << 7)
const CORBA::ULong | TAO_INVOCATION_SEND_REQUEST_MINOR_CODE = (0x02U << 7)
const CORBA::ULong | TAO_POA_DISCARDING = (0x03U << 7)
const CORBA::ULong | TAO_POA_HOLDING = (0x04U << 7)
const CORBA::ULong | TAO_UNHANDLED_SERVER_CXX_EXCEPTION = (0x05U << 7)
const CORBA::ULong | TAO_INVOCATION_RECV_REQUEST_MINOR_CODE = (0x06U << 7)
const CORBA::ULong | TAO_CONNECTOR_REGISTRY_NO_USABLE_PROTOCOL = (0x07U << 7)
const CORBA::ULong | TAO_MPROFILE_CREATION_ERROR = (0x08U << 7)
const CORBA::ULong | TAO_TIMEOUT_CONNECT_MINOR_CODE = (0x09U << 7)
const CORBA::ULong | TAO_TIMEOUT_SEND_MINOR_CODE = (0x0AU << 7)
const CORBA::ULong | TAO_TIMEOUT_RECV_MINOR_CODE = (0x0BU << 7)
const CORBA::ULong | TAO_IMPLREPO_MINOR_CODE = (0x0CU << 7)
const CORBA::ULong | TAO_ACCEPTOR_REGISTRY_OPEN_LOCATION_CODE = (0x0DU << 7)
const CORBA::ULong | TAO_ORB_CORE_INIT_LOCATION_CODE = (0x0EU << 7)
const CORBA::ULong | TAO_POLICY_NARROW_CODE = (0x0FU << 7)
const CORBA::ULong | TAO_GUARD_FAILURE = (0x10U << 7)
const CORBA::ULong | TAO_POA_BEING_DESTROYED = (0x11U << 7)
const CORBA::ULong | TAO_POA_INACTIVE = (0x12U << 7)
const CORBA::ULong | TAO_CONNECTOR_REGISTRY_INIT_LOCATION_CODE = (0x13U << 7)
const CORBA::ULong | TAO_AMH_REPLY_LOCATION_CODE = (0x14U << 7)
const CORBA::ULong | TAO_RTCORBA_THREAD_CREATION_LOCATION_CODE = (0x15U << 7)
## Defines
#define | TAO_TWOWAY_RESPONSE_FLAG 255
## Variables
const ULong | CORBA::OMGVMCID = 0x4f4d0000U
| The OMG Vendor Minor Codeset ID (VMCID).
const CORBA::ULong | TAO_SVC_CONTEXT_ALIGN = 0x54414f00U

## Detailed Description

Id
  ORB_Constants.h,v 1.8 2005/11/02 07:13:03 ossama Exp

Constants needed by various files.

Author:
  Jeff Parsons

  Ossama Othman

## Define Documentation

#define TAO_TWOWAY_RESPONSE_FLAG 255

## Variable Documentation

const int IPDSFIELD_DSCP_DEFAULT = 0x00

Local IPC (Unix Domain).

const CORBA::ULong TAO_ACCEPTOR_REGISTRY_OPEN_LOCATION_CODE = (0x0DU << 7)

const CORBA::ULong TAO_AMH_REPLY_LOCATION_CODE = (0x14U << 7)

const CORBA::ULong TAO_CONNECTOR_REGISTRY_INIT_LOCATION_CODE = (0x13U << 7)

const CORBA::ULong TAO_CONNECTOR_REGISTRY_NO_USABLE_PROTOCOL = (0x07U << 7)

const CORBA::ULong TAO_DEFAULT_MINOR_CODE = TAO::VMCID

TAO VMCID assigned by the OMG.

Note:
  This constant has historically been used in the wrong way. It was often used as the location argument to the `CORBA::SystemException::_tao_minor_code()` static method. A more appropriate default location argument/value would have been zero since the location code resides in portion of the lower order 12 bits, not the higher order 20 bits which is where the VMCID resides, and what this value happens to be.

Deprecated:
  Please use `TAO::VMCID` instead, or zero if being used as default TAO exception location code argument.

See also:
  `TAO::VMCID`

const CORBA::ULong TAO_GUARD_FAILURE = (0x10U << 7)

const CORBA::ULong TAO_IMPLREPO_MINOR_CODE = (0x0CU << 7)

const CORBA::ULong TAO_INVOCATION_LOCATION_FORWARD_MINOR_CODE = (0x01U << 7)

const CORBA::ULong TAO_INVOCATION_RECV_REQUEST_MINOR_CODE = (0x06U << 7)

const CORBA::ULong TAO_INVOCATION_SEND_REQUEST_MINOR_CODE = (0x02U << 7)

const CORBA::ULong TAO_MAX_MINOR_CODE = TAO::MAX_MINOR_CODE

Maximum allowed system exception minor code.

Deprecated:
  Please use `TAO::MAX_MINOR_CODE` instead.

See also:
  `TAO::MAX_MINOR_CODE`

const CORBA::ULong TAO_MPROFILE_CREATION_ERROR = (0x08U << 7)

const CORBA::ULong TAO_ORB_CORE_INIT_LOCATION_CODE = (0x0EU << 7)

const CORBA::ULong TAO_POA_BEING_DESTROYED = (0x11U << 7)

const CORBA::ULong TAO_POA_DISCARDING = (0x03U << 7)

const CORBA::ULong TAO_POA_HOLDING = (0x04U << 7)

const CORBA::ULong TAO_POA_INACTIVE = (0x12U << 7)

const CORBA::ULong TAO_POLICY_NARROW_CODE = (0x0FU << 7)

const CORBA::ULong TAO_RTCORBA_THREAD_CREATION_LOCATION_CODE = (0x15U << 7)

const CORBA::ULong TAO_SVC_CONTEXT_ALIGN = 0x54414f00U

Note:
  This is *extremely* brittle but works.

const CORBA::ULong TAO_TAG_DIOP_PROFILE = 0x54414f04U

UDP.

const CORBA::ULong TAO_TAG_NSKFS_PROFILE = 0x00003039U

Tandem (HP) File System Protocol.

const CORBA::ULong TAO_TAG_NSKPW_PROFILE = 0x0000303AU

Tandem (HP) Pathsend Protocol.

const CORBA::ULong TAO_TAG_SCIOP_PROFILE = 0x54414f0EU

SCIOP.

const CORBA::ULong TAO_TAG_SHMEM_PROFILE = 0x54414f02U

Shared memory.

const CORBA::ULong TAO_TAG_UIOP_PROFILE = 0x54414f00U

Local IPC (Unix Domain).

const CORBA::ULong TAO_TAG_UIPMC_PROFILE = 0x54414f0CU

Unreliable IP Multicast.

const CORBA::ULong TAO_TIMEOUT_CONNECT_MINOR_CODE = (0x09U << 7)

const CORBA::ULong TAO_TIMEOUT_RECV_MINOR_CODE = (0x0BU << 7)

const CORBA::ULong TAO_TIMEOUT_SEND_MINOR_CODE = (0x0AU << 7)

const CORBA::ULong TAO_UNHANDLED_SERVER_CXX_EXCEPTION = (0x05U << 7)