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ShmemInst Class |
Provides access to the configurable options for the Shared Memory transport.
Inheritance HierarchyNamespace: OpenDDSharp.OpenDDS.DCPS
Assembly: OpenDDSharp (in OpenDDSharp.dll) Version: 0.5.0.0
SyntaxThe ShmemInst type exposes the following members.
ConstructorsProperties| Name | Description | |
|---|---|---|
 | DatalinkControlChunks |
The number of chunks used to size allocators for transport control
samples. The default value is 32.
(Inherited from TransportInst.) |
| DatalinkControlSize |
Size (in bytes) of the control area allocated for each data link.
This allocation comes out of the shared-memory pool defined by PoolSize.
Defaults to 4 kilobytes.
|
| DatalinkReleaseDelay |
Delay in milliseconds that the datalink should be released after all
associations are removed. The default value is 10 seconds.
(Inherited from TransportInst.) |
| HostName |
Gets the host name.
|
| IsReliable |
Indicates whether the transport is reliable or not.
|
| MaxPacketSize |
The maximum size of a transport packet, including
its transport header, sample header, and sample data.
The default value is 2147481599.
(Inherited from TransportInst.) |
| MaxSamplesPerPacket |
Maximum number of samples in a transport packet.
The default value is 10.
(Inherited from TransportInst.) |
| Name |
Gets the configuration's name.
(Inherited from TransportInst.) |
| OptimumPacketSize |
Optimum size (in bytes) of a packet (packet header + sample(s)).
The default value is 4096.
(Inherited from TransportInst.) |
| PoolName |
Gets the pool name.
|
| PoolSize |
Size (in bytes) of the single shared-memory pool allocated by this
transport instance. Defaults to 16 megabytes.
|
| QueueInitialPools |
The initial number of pools for the backpressure
queue. The default value is 5.
(Inherited from TransportInst.) |
| QueueMessagesPerPool |
Number of pre-created link (list) objects per pool for the
"send queue" of each DataLink. The default value is 10.
(Inherited from TransportInst.) |
| ThreadPerConnection |
Enable or disable the thread per connection send
strategy. By default, this option is disabled (false).
(Inherited from TransportInst.) |
| TransportType |
Type of the transport; tcp, udp, multicast,
shmem, and rtps_udp are included with OpenDDSharp.
(Inherited from TransportInst.) |
Methods| Name | Description | |
|---|---|---|
 | Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Remarks
The shared memory transport type can only provide communication between transport instances on the same host.
As part of transport negotiation, if there are multiple transport instances available for
communication between hosts, the shared memory transport instances will be skipped so
that other types can be used.
See Also