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JetStream Assets Management
Functions » JetStream

## Functions

NATS_EXTERN natsStatus | jsStreamConfig_Init (jsStreamConfig *cfg)
| Initializes a streaming configuration structure.
NATS_EXTERN natsStatus | jsPlacement_Init (jsPlacement *placement)
| Initializes a placement configuration structure.
NATS_EXTERN natsStatus | jsStreamSource_Init (jsStreamSource *source)
| Initializes a stream source configuration structure.
NATS_EXTERN natsStatus | jsExternalStream_Init (jsExternalStream *external)
| Initializes an external stream configuration structure.
NATS_EXTERN natsStatus | jsRePublish_Init (jsRePublish *rp)
| Initializes a republish structure.
NATS_EXTERN natsStatus | js_AddStream (jsStreamInfo **si, jsCtx *js, jsStreamConfig *cfg, jsOptions *opts, jsErrCode *errCode)
| Creates a stream.
NATS_EXTERN natsStatus | js_UpdateStream (jsStreamInfo **si, jsCtx *js, jsStreamConfig *cfg, jsOptions *opts, jsErrCode *errCode)
| Updates a stream.
NATS_EXTERN natsStatus | js_PurgeStream (jsCtx *js, const char *stream, jsOptions *opts, jsErrCode *errCode)
| Purges a stream.
NATS_EXTERN natsStatus | js_DeleteStream (jsCtx *js, const char *stream, jsOptions *opts, jsErrCode *errCode)
| Deletes a stream.
NATS_EXTERN natsStatus | js_GetMsg (natsMsg **msg, jsCtx *js, const char *stream, uint64_t seq, jsOptions *opts, jsErrCode *errCode)
| Retrieves a JetStream message from the stream by sequence.
NATS_EXTERN natsStatus | js_GetLastMsg (natsMsg **msg, jsCtx *js, const char *stream, const char *subject, jsOptions *opts, jsErrCode *errCode)
| Retrieves the last JetStream message from the stream for a given subject.
NATS_EXTERN natsStatus | jsDirectGetMsgOptions_Init (jsDirectGetMsgOptions *opts)
| Initializes a direct get message options structure.
NATS_EXTERN natsStatus | js_DirectGetMsg (natsMsg **msg, jsCtx *js, const char *stream, jsOptions *opts, jsDirectGetMsgOptions *dgOpts)
| Retrieves directly a JetStream message based on provided options.
NATS_EXTERN natsStatus | js_DeleteMsg (jsCtx *js, const char *stream, uint64_t seq, jsOptions *opts, jsErrCode *errCode)
| Deletes a message from the stream.
NATS_EXTERN natsStatus | js_EraseMsg (jsCtx *js, const char *stream, uint64_t seq, jsOptions *opts, jsErrCode *errCode)
| Erases a message from the stream.
NATS_EXTERN natsStatus | js_GetStreamInfo (jsStreamInfo **si, jsCtx *js, const char *stream, jsOptions *opts, jsErrCode *errCode)
| Retreives information from a stream.
NATS_EXTERN void | jsStreamInfo_Destroy (jsStreamInfo *si)
| Destroys the stream information object.
NATS_EXTERN natsStatus | js_Streams (jsStreamInfoList **list, jsCtx *js, jsOptions *opts, jsErrCode *errCode)
| Retrieves the list of all available streams.
NATS_EXTERN void | jsStreamInfoList_Destroy (jsStreamInfoList *list)
| Destroys the stream information list object.
NATS_EXTERN natsStatus | js_StreamNames (jsStreamNamesList **list, jsCtx *js, jsOptions *opts, jsErrCode *errCode)
| Retrieves the list of all available stream names.
NATS_EXTERN void | jsStreamNamesList_Destroy (jsStreamNamesList *list)
| Destroys the stream names list object.
NATS_EXTERN natsStatus | jsConsumerConfig_Init (jsConsumerConfig *cc)
| Initializes a consumer configuration structure.
NATS_EXTERN natsStatus | js_AddConsumer (jsConsumerInfo **ci, jsCtx *js, const char *stream, jsConsumerConfig *cfg, jsOptions *opts, jsErrCode *errCode)
| Adds a JetStream consumer.
NATS_EXTERN natsStatus | js_UpdateConsumer (jsConsumerInfo **ci, jsCtx *js, const char *stream, jsConsumerConfig *cfg, jsOptions *opts, jsErrCode *errCode)
| Updates a JetStream consumer.
NATS_EXTERN natsStatus | js_GetConsumerInfo (jsConsumerInfo **ci, jsCtx *js, const char *stream, const char *consumer, jsOptions *opts, jsErrCode *errCode)
| Retrieves information about a consumer.
NATS_EXTERN natsStatus | js_DeleteConsumer (jsCtx *js, const char *stream, const char *consumer, jsOptions *opts, jsErrCode *errCode)
| Deletes a consumer.
NATS_EXTERN void | jsConsumerInfo_Destroy (jsConsumerInfo *ci)
| Destroys the consumer information object.
NATS_EXTERN natsStatus | js_Consumers (jsConsumerInfoList **list, jsCtx *js, const char *stream, jsOptions *opts, jsErrCode *errCode)
| Retrieves the list of all available consumers for a stream.
NATS_EXTERN void | jsConsumerInfoList_Destroy (jsConsumerInfoList *list)
| Destroys the consumer information list object.
NATS_EXTERN natsStatus | js_ConsumerNames (jsConsumerNamesList **list, jsCtx *js, const char *stream, jsOptions *opts, jsErrCode *errCode)
| Retrieves the list of all available consumer names for a stream.
NATS_EXTERN void | jsConsumerNamesList_Destroy (jsConsumerNamesList *list)
| Destroys the consumer names list object.
NATS_EXTERN natsStatus | js_GetAccountInfo (jsAccountInfo **ai, jsCtx *js, jsOptions *opts, jsErrCode *errCode)
| Retrieves information about the JetStream usage from an account.
NATS_EXTERN void | jsAccountInfo_Destroy (jsAccountInfo *ai)
| Destroys the account information object.

## Detailed Description

JetStream Assets Management

## Function Documentation

## jsStreamConfig_Init()

NATS_EXTERN natsStatus jsStreamConfig_Init | ( | jsStreamConfig * | cfg | ) |

Use this before setting specific stream configuration options and passing this configuration to some of the stream management APIs.

Parameters

  cfg | the pointer to the jsStreamConfig to initialize.

## jsPlacement_Init()

NATS_EXTERN natsStatus jsPlacement_Init | ( | jsPlacement * | placement | ) |

Use this before setting specific stream placement options.

Parameters

  placement | the pointer to the jsPlacement to initialize.

## jsStreamSource_Init()

NATS_EXTERN natsStatus jsStreamSource_Init | ( | jsStreamSource * | source | ) |

Use this before setting specific stream source options.

Parameters

  source | the pointer to the jsStreamSource to initialize.

## jsExternalStream_Init()

NATS_EXTERN natsStatus jsExternalStream_Init | ( | jsExternalStream * | external | ) |

Use this before setting specific external stream options.

Parameters

  external | the pointer to the jsExternalStream to initialize.

## jsRePublish_Init()

NATS_EXTERN natsStatus jsRePublish_Init | ( | jsRePublish * | rp | ) |

Use this to set the source, destination and/or headers only for a stream re-publish.

Parameters

  rp | the pointer to the jsRePublish to initialize.

## js_AddStream()

NATS_EXTERN natsStatus js_AddStream | ( | jsStreamInfo ** | si,
|  | jsCtx * | js,
|  | jsStreamConfig * | cfg,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Creates a stream based on the provided configuration (that cannot be `NULL`). The name is mandatory and cannot contain `.` characters.

Note
  If you do not need a jsStreamInfo to be returned, you can pass `NULL`, otherwise, on success you are responsible for freeing this object.

See also
  jsStreamConfig_Init
  jsStreamInfo_Destroy

Parameters

  si | the location where to store the pointer to the new jsStreamInfo object in response to the creation request, or `NULL` if the stream information is not needed.
  js | the pointer to the jsCtx context.
  cfg | the pointer to the jsStreamConfig.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_UpdateStream()

NATS_EXTERN natsStatus js_UpdateStream | ( | jsStreamInfo ** | si,
|  | jsCtx * | js,
|  | jsStreamConfig * | cfg,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Updates a stream based on the provided configuration (that cannot be `NULL`). The name is mandatory and cannot contain `.` characters.

Note
  If you do not need a jsStreamInfo to be returned, you can pass `NULL`, otherwise, on success you are responsible for freeing this object.

See also
  jsStreamConfig_Init
  jsStreamInfo_Destroy

Parameters

  si | the location where to store the pointer to the new jsStreamInfo object in response to the creation request, or `NULL` if the stream information is not needed.
  js | the pointer to the jsCtx context.
  cfg | the pointer to the jsStreamConfig.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_PurgeStream()

NATS_EXTERN natsStatus js_PurgeStream | ( | jsCtx * | js,
|  | const char * | stream,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Purges the stream named `stream`.

For more advanced purge options, you can specify them through jsOptions.

jsOptions o;
jsOptions_Init(&o);
o.Stream.Purge.Subject = "foo";
o.Stream.Purge.Sequence = 4;
js_PurgeStream(js, "MY_STREAM", &o, &jerr);

Parameters

  js | the pointer to the jsCtx context.
  stream | the name of the stream to purge.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_DeleteStream()

NATS_EXTERN natsStatus js_DeleteStream | ( | jsCtx * | js,
|  | const char * | stream,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Deletes the stream named `stream`.

Parameters

  js | the pointer to the jsCtx context.
  stream | the name of the stream to delete.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_GetMsg()

NATS_EXTERN natsStatus js_GetMsg | ( | natsMsg ** | msg,
|  | jsCtx * | js,
|  | const char * | stream,
|  | uint64_t | seq,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves a raw stream message stored in JetStream by sequence number.

Note
  The message needs to be destroyed by calling natsMsg_Destroy.

See also
  js_GetLastMsg
  natsMsg_Destroy

Parameters

  msg | the memory location where the library will store the pointer to the natsMsg.
  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  seq | the sequence in the stream of the message being retrieved.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_GetLastMsg()

NATS_EXTERN natsStatus js_GetLastMsg | ( | natsMsg ** | msg,
|  | jsCtx * | js,
|  | const char * | stream,
|  | const char * | subject,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves the last JetStream message from the stream for a given subject.

Note
  The message needs to be destroyed by calling natsMsg_Destroy.

See also
  js_GetMsg
  natsMsg_Destroy

Parameters

  msg | the memory location where the library will store the pointer to the natsMsg.
  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  subject | the subject for which the last message is being retrieved.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsDirectGetMsgOptions_Init()

NATS_EXTERN natsStatus jsDirectGetMsgOptions_Init | ( | jsDirectGetMsgOptions * | opts | ) |

Use this before setting specific direct get message options and passing it to js_DirectGetMsg API.

Parameters

  opts | the pointer to the jsDirectGetMsgOptions object.

## js_DirectGetMsg()

NATS_EXTERN natsStatus js_DirectGetMsg | ( | natsMsg ** | msg,
|  | jsCtx * | js,
|  | const char * | stream,
|  | jsOptions * | opts,
|  | jsDirectGetMsgOptions * | dgOpts
| ) |  |

If a stream is created with `AllowDirect`, it is possible to retrieve a message without going through the leader.

To specify the options, call jsDirectGetMsgOptions_Init first and the set the appropriate options, then invoke this function.

Note
  Some options are mutually exclusive but the library is not doing the check and leave it to the server to do it and return the error returned by the server.
  This API can only be used against servers that support the direct get feature, which is `v2.9.0+`. If running against an older server the call will likely timeout.

Parameters

  msg | the location where to store the pointer to the retrieved message.
  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  dgOpts | the pointer to the jsDirectGetMsgOptions object, cannot be `NULL`.

## js_DeleteMsg()

NATS_EXTERN natsStatus js_DeleteMsg | ( | jsCtx * | js,
|  | const char * | stream,
|  | uint64_t | seq,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Deletes the message at sequence `seq` in the stream named `stream`.

Note
  To completely erase the content of the deleted message when stored on disk, use js_EraseMsg instead.

See also
  js_EraseMsg

Parameters

  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  seq | the sequence in the stream of the message to delete.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_EraseMsg()

NATS_EXTERN natsStatus js_EraseMsg | ( | jsCtx * | js,
|  | const char * | stream,
|  | uint64_t | seq,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Similar to js_DeleteMsg except that the content of the deleted message is erased from stable storage.

See also
  js_DeleteMsg

Parameters

  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  seq | the sequence in the stream of the message to erase.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_GetStreamInfo()

NATS_EXTERN natsStatus js_GetStreamInfo | ( | jsStreamInfo ** | si,
|  | jsCtx * | js,
|  | const char * | stream,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Returns information about the stream named `stream`.

Note
  You need to free the returned object.

To get some detailed information about deleted messages, set this option:

jsOptions o;
jsOptions_Init(&o);
o.Stream.Info.DeletedDetails = true;
js_GetStreamInfo(&si, js, "MY_STREAM", &o, &jerr);

See also
  jsStreamInfo_Destroy

Parameters

  si | the location where to store the pointer to the new jsStreamInfo object in response to the creation request.
  js | the pointer to the jsCtx context.
  stream | the name of the stream which information is retrieved.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsStreamInfo_Destroy()

NATS_EXTERN void jsStreamInfo_Destroy | ( | jsStreamInfo * | si | ) |

Releases memory allocated for this stream information object.

Parameters

  si | the pointer to the jsStreamInfo object.

## js_Streams()

NATS_EXTERN natsStatus js_Streams | ( | jsStreamInfoList ** | list,
|  | jsCtx * | js,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves the list of all jsStreamInfo. It is possible to filter which streams are to be retrieved based on a subject filter.

Warning
  The list should be destroyed when no longer used by calling jsStreamInfoList_Destroy.

Parameters

  list | the location where to store the pointer to the new jsStreamInfoList object.
  js | the pointer to the jsCtx context.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsStreamInfoList_Destroy()

NATS_EXTERN void jsStreamInfoList_Destroy | ( | jsStreamInfoList * | list | ) |

Releases memory allocated for this stream information list.

Warning
  All jsStreamInfo pointers contained in the list will be destroyed by this call.

Parameters

  list | the pointer to the jsStreamInfoList object.

## js_StreamNames()

NATS_EXTERN natsStatus js_StreamNames | ( | jsStreamNamesList ** | list,
|  | jsCtx * | js,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves the list of all stream names. It is possible to filter which streams are to be retrieved based on a subject filter.

Warning
  The list should be destroyed when no longer used by calling jsStreamNamesList_Destroy.

Parameters

  list | the location where to store the pointer to the new jsStreamNamesList object.
  js | the pointer to the jsCtx context.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsStreamNamesList_Destroy()

NATS_EXTERN void jsStreamNamesList_Destroy | ( | jsStreamNamesList * | list | ) |

Releases memory allocated for this list of stream names.

Warning
  All string pointers contained in the list will be destroyed by this call.

Parameters

  list | the pointer to the jsStreamNamesList object.

## jsConsumerConfig_Init()

NATS_EXTERN natsStatus jsConsumerConfig_Init | ( | jsConsumerConfig * | cc | ) |

Use this before adding a consumer.

See also
  jsConsumerConfig

Parameters

  cc | the pointer to the jsConsumerConfig to initialize.

## js_AddConsumer()

NATS_EXTERN natsStatus js_AddConsumer | ( | jsConsumerInfo ** | ci,
|  | jsCtx * | js,
|  | const char * | stream,
|  | jsConsumerConfig * | cfg,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Adds a consumer based on the provided configuration (that cannot be `NULL`).

Note
  If you do not need a jsConsumerInfo to be returned, you can pass `NULL`, otherwise, on success you are responsible for freeing this object.

See also
  jsConsumerConfig_Init
  jsConsumerInfo_Destroy

Parameters

  ci | the location where to store the pointer to the new jsConsumerInfo object in response to the creation request, or `NULL` if the consumer information is not needed.
  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  cfg | the pointer to the jsConsumerConfig.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_UpdateConsumer()

NATS_EXTERN natsStatus js_UpdateConsumer | ( | jsConsumerInfo ** | ci,
|  | jsCtx * | js,
|  | const char * | stream,
|  | jsConsumerConfig * | cfg,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Updates a consumer based on the provided configuration (that cannot be `NULL`).

Note
  If you do not need a jsConsumerInfo to be returned, you can pass `NULL`, otherwise, on success you are responsible for freeing this object.

See also
  jsConsumerConfig_Init
  jsConsumerInfo_Destroy

Parameters

  ci | the location where to store the pointer to the new jsConsumerInfo object in response to the creation request, or `NULL` if the consumer information is not needed.
  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  cfg | the pointer to the jsConsumerConfig.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_GetConsumerInfo()

NATS_EXTERN natsStatus js_GetConsumerInfo | ( | jsConsumerInfo ** | ci,
|  | jsCtx * | js,
|  | const char * | stream,
|  | const char * | consumer,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Note
  The returned object should be destroyed using jsConsumerInfo_Destroy in order to free allocated memory.

Parameters

  ci | the location where to store the pointer to the new jsConsumerInfo object.
  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  consumer | the name of the consumer.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## js_DeleteConsumer()

NATS_EXTERN natsStatus js_DeleteConsumer | ( | jsCtx * | js,
|  | const char * | stream,
|  | const char * | consumer,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Deletes the consumer named `consumer` from stream named `stream`.

Parameters

  js | the pointer to the jsCtx context.
  stream | the name of the stream.
  consumer | the name of the consumer.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsConsumerInfo_Destroy()

NATS_EXTERN void jsConsumerInfo_Destroy | ( | jsConsumerInfo * | ci | ) |

Releases memory allocated for this consumer information object.

Parameters

  ci | the pointer to the jsConsumerInfo object.

## js_Consumers()

NATS_EXTERN natsStatus js_Consumers | ( | jsConsumerInfoList ** | list,
|  | jsCtx * | js,
|  | const char * | stream,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves the list of all jsConsumerInfo for a given stream.

Warning
  The list should be destroyed when no longer used by calling jsConsumerInfoList_Destroy.

Parameters

  list | the location where to store the pointer to the new jsConsumerInfoList object.
  js | the pointer to the jsCtx context.
  stream | the stream name whose consumer list is requested.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsConsumerInfoList_Destroy()

NATS_EXTERN void jsConsumerInfoList_Destroy | ( | jsConsumerInfoList * | list | ) |

Releases memory allocated for this consumer information list.

Warning
  All jsConsumerInfo pointers contained in the list will be destroyed by this call.

Parameters

  list | the pointer to the jsConsumerInfoList object.

## js_ConsumerNames()

NATS_EXTERN natsStatus js_ConsumerNames | ( | jsConsumerNamesList ** | list,
|  | jsCtx * | js,
|  | const char * | stream,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves the list of all consumer names for a given stream.

Warning
  The list should be destroyed when no longer used by calling jsConsumerNamesList_Destroy.

Parameters

  list | the location where to store the pointer to the new jsConsumerNamesList object.
  js | the pointer to the jsCtx context.
  stream | the stream name whose consumer list is requested.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsConsumerNamesList_Destroy()

NATS_EXTERN void jsConsumerNamesList_Destroy | ( | jsConsumerNamesList * | list | ) |

Releases memory allocated for this list of consumer names.

Warning
  All string pointers contained in the list will be destroyed by this call.

Parameters

  list | the pointer to the jsConsumerNamesList object.

## js_GetAccountInfo()

NATS_EXTERN natsStatus js_GetAccountInfo | ( | jsAccountInfo ** | ai,
|  | jsCtx * | js,
|  | jsOptions * | opts,
|  | jsErrCode * | errCode
| ) |  |

Retrieves information about the JetStream usage from an account.

Note
  The returned object should be destroyed using jsAccountInfo_Destroy in order to free allocated memory.

Parameters

  ai | the location where to store the pointer to the new jsAccountInfo object in response to the account information request.
  js | the pointer to the jsCtx context.
  opts | the pointer to the jsOptions object, possibly `NULL`.
  errCode | the location where to store the JetStream specific error code, or `NULL` if not needed.

## jsAccountInfo_Destroy()

NATS_EXTERN void jsAccountInfo_Destroy | ( | jsAccountInfo * | ai | ) |

Releases memory allocated for this account information object.

Parameters

  ai | the pointer to the jsAccountInfo object.