CURLSMultiMBS.AutoPerform as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	23.2	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Whether to run a timer and run Perform automatically for you.

Set to true to run Perform automatically. For this the plugin manages a timer to call perform regularly.
We set this to true for the default shared instance, so it runs without you doing anything.
(Read and Write property)

CURLSMultiMBS.ChunkLengthPenaltySize as Int64   Deprecated

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

A connection with a chunk length longer than this will not be considered for pipelining.

(Read and Write property)

CURLSMultiMBS.ContentLengthPenaltySize as Int64   Deprecated

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

A connection with a content-length longer than this will not be considered for pipelining.

(Read and Write property)

CURLSMultiMBS.Handle as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The internal object reference.

(Read only property)

CURLSMultiMBS.Lasterror as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The last error code.

(Read and Write property)

CURLSMultiMBS.MaxConcurrentStreams as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	20.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The maximum number of concurrent connections to a server.

Maximum number of concurrent streams to support on a connection.
(Read and Write property)

CURLSMultiMBS.MaxConnects as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Maximum number of entries in the connection cache.

If value is greater than 0, a fixed limit of the maximum number of entries we are allowed to grow the connection cache to.

Default is -1 for no limit.
(Read and Write property)

CURLSMultiMBS.MaxHostConnections as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Maximum number of (pipelining) connections to one host.

If value is greater than 0, a fixed limit of the maximum number of connections per host.
(Read and Write property)

CURLSMultiMBS.MaxPipelineLength as Integer   Deprecated

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Maximum number of requests in a pipeline.

(Read and Write property)

CURLSMultiMBS.MaxTotalConnections as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Maximum number of open connections in total.

If value is greater than 0, a fixed limit of the maximum number of connections in total.
(Read and Write property)

Some examples using this property:

• /CURL/SFTP/CURLS sftp batch download
• /CURL/SFTP/CURLS sftp batch upload

CURLSMultiMBS.Pipelining as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Set to 1 to enable pipelining for this multi handle.

Only for HTTP protocol.
Used to be a boolean property for 15.0 to 18.1, but changed to integer for 18.2.
(Read and Write property)

CURLSMultiMBS.RunningTransfers as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	15.0	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Number of running transfers.

Set by Perform method.
(Read only property)

Some examples using this property:

• /CURL/Multi Transfer
• /CURL/Multi Transfer automatic

CURLSMultiMBS.Tag as Variant

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	23.3	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The tag value.

You can store whatever reference value you need.
(Read and Write property)

CURLSMultiMBS.TransfersAdded as UInt64

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	25.5	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The cumulative number of all easy handles added to the multi, ever.

This includes internal handles added for tasks (like resolving via DoH, for example).

For the current number of easy handles managed by the multi, use TransfersCurrent.
(Read only property)

CURLSMultiMBS.TransfersCurrent as UInt64

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	25.5	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Returns the number of easy handles currently added to the multi handle.

This does not include already removed handles. It does include internal handles that get added for tasks (like resolving via DoH, for example).

For the total number of easy handles ever added to the multi, see TransfersAdded.
(Read only property)

CURLSMultiMBS.TransfersDone as UInt64

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	25.5	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The number of easy handles currently finished, but not yet removed.

(Read only property)

CURLSMultiMBS.TransfersPending as UInt64

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	25.5	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The number of current easy handles waiting to start.

An added transfer might become pending for various reasons: a connection limit forces it to wait, resolving DNS is not finished or it is not clear if an existing, matching connection may allow multiplexing (HTTP/2 or HTTP/3).
(Read only property)

CURLSMultiMBS.TransfersRunning as UInt64

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	CURL	MBS CURL Plugin	25.5	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

The number of easy handles currently running, e.g. where the transfer has started but not finished yet.

(Read only property)