[#BloombergLP-bdlmt-Signaler_Node]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlmt.adoc[bdlmt]::Signaler_Node
:relfileprefix: ../../
:mrdocs:

Shared implementation object backing a `Signaler`.

== Synopsis

Declared in `<bdlmt_signaler.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_PROT>
class Signaler_Node
    : public xref:bsl/enable_shared_from_this.adoc[bsl::enable_shared_from_this<Signaler_Node<t_PROT>>]
----

== Description

Provides the implementation of a signaler. This object has a 1‐1 relationship with the `Signaler`, which has a shared pointer to it. This allows other objects to refer to it via shared and weak pointers. This allows `SignalerConnection` objects to outlive the `Signaler ‐ Signaler_Node` pair, since they can test or lock weak pointers to see if the `Signaler_Node` still exists when they are trying to disconnect themselves.

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:bsl/enable_shared_from_this.adoc[bsl::enable_shared_from_this<Signaler_Node<t_PROT>>]`
| Mixin enabling an object to obtain a `shared_ptr` to itself.
|===

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlmt/Signaler_Node/2constructor.adoc[`Signaler_Node`]         [.small]#[constructor]#
| Create a `Signaler_Node` with no connected slots.
| xref:BloombergLP/bdlmt/Signaler_Node/connect.adoc[`connect`] 
| Connect `slot` to this signaler in the specified `group`.
| xref:BloombergLP/bdlmt/Signaler_Node/disconnectAllSlots.adoc[`disconnectAllSlots`] 
| Disconnect all slots connected to this signaler without waiting.
| xref:BloombergLP/bdlmt/Signaler_Node/disconnectAllSlotsAndWait.adoc[`disconnectAllSlotsAndWait`] 
| Disconnect all slots and wait for in‐progress signals to finish.
| xref:BloombergLP/bdlmt/Signaler_Node/disconnectGroup.adoc[`disconnectGroup`] 
| Disconnect all slots in `group` without waiting.
| xref:BloombergLP/bdlmt/Signaler_Node/disconnectGroupAndWait.adoc[`disconnectGroupAndWait`] 
| Disconnect all slots in `group` and wait for in‐progress signals.
| xref:BloombergLP/bdlmt/Signaler_Node/invoke.adoc[`invoke`] 
| Invoke all connected slots with the supplied arguments.
| xref:BloombergLP/bdlmt/Signaler_Node/notifyDisconnected.adoc[`notifyDisconnected`] 
| Notify this signaler that the slot identified by `slotMapKey` disconnected.
| xref:bsl/enable_shared_from_this/shared_from_this-0a2.adoc[`shared_from_this`] 
| `shared_from_this` overloads
| xref:BloombergLP/bdlmt/Signaler_Node/slotCount.adoc[`slotCount`] 
| Return the number of slots connected to this signaler.
| xref:BloombergLP/bdlmt/Signaler_Node/synchronizeWait.adoc[`synchronizeWait`] 
| Block until all signals currently being emitted on the signaler have completed.
| xref:bsl/enable_shared_from_this/weak_from_this-0e.adoc[`weak_from_this`] 
| `weak_from_this` overloads
|===


== Protected Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:bsl/enable_shared_from_this/operator_assign.adoc[`operator=`] 
| Return `*this`. This object is unchanged. Note that the specified `rhs` is not used.
|===



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