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OMNeT++ API 6.1
Discrete Event Simulation Library
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OMNeT++ API 6.1
Discrete Event Simulation Library
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Simulation signals (or just signals) provide a way of publish-subscribe communication for models. Signals are represented by the type simsignal_t, are emitted on a module or channel using cComponent::emit(), and propagate up in the module tree. At any level, one may add listeners (cIListener) with cComponent::subscribe().
The simulation kernel also utilizes signals for proving notifications about model changes such as creation and deletion of modules. The corresponding signals are PRE_MODEL_CHANGE and POST_MODEL_CHANGE, and details are provided via subclasses of cModelChangeNotification (various cPre/cPost..Notification classes).
Classes | |
| class | cIListener |
| Interface for listeners in a simulation model. More... | |
| class | cListener |
| A do-nothing implementation of cIListener, suitable as a base class for other listeners. More... | |
| class | cModelChangeNotification |
| Common base class for data objects that accompany PRE_MODEL_CHANGE and POST_MODEL_CHANGE signals. More... | |
| class | cPreModuleAddNotification |
| Model change notification fired just before a module is inserted into the network. More... | |
| class | cPostModuleAddNotification |
| Model change notification fired just after a module is inserted into the network. More... | |
| class | cPostModuleBuildNotification |
| Model change notification fired after a module is built. More... | |
| class | cPostComponentInitializeNotification |
| Model change notification fired after a component is initialized. More... | |
| class | cPreModuleDeleteNotification |
| Model change notification fired just before a module is deleted. More... | |
| class | cPostModuleDeleteNotification |
| Model change notification fired after a module has been deleted. More... | |
| class | cPreModuleReparentNotification |
| Model change notification fired just before a module is reparented. More... | |
| class | cPostModuleReparentNotification |
| Model change notification fired after a module has been reparented. More... | |
| class | cPreGateAddNotification |
| Model change notification fired just before a gate or gate vector is added to the module. More... | |
| class | cPostGateAddNotification |
| Model change notification fired after a gate or gate vector has been added to the module. More... | |
| class | cPreGateDeleteNotification |
| Model change notification fired just before a gate is deleted. More... | |
| class | cPostGateDeleteNotification |
| Model change notification fired after a gate has been deleted. More... | |
| class | cPreGateVectorResizeNotification |
| Model change notification fired just before a gate vector is resized. More... | |
| class | cPostGateVectorResizeNotification |
| Model change notification fired after a gate vector has been resized. More... | |
| class | cPreGateConnectNotification |
| Model change notification fired just before a gate is connected. More... | |
| class | cPreGateDisconnectNotification |
| Model change notification fired just before a gate has been disconnected. More... | |
| class | cPostGateDisconnectNotification |
| Model change notification fired after a gate is disconnected. More... | |
| class | cPathChangeNotification |
| Base class for path change notifications. More... | |
| class | cPrePathCreateNotification |
| Model change notification fired just before a connection path is created. More... | |
| class | cPostPathCreateNotification |
| Model change notification fired after a connection path has been created. More... | |
| class | cPrePathCutNotification |
| Model change notification fired just before a connection path is cut. More... | |
| class | cPostPathCutNotification |
| Model change notification fired after a connection path has been cut. More... | |
| class | cPreParameterChangeNotification |
| Model change notification fired just before a parameter change. More... | |
| class | cPostParameterChangeNotification |
| Model change notification fired after a parameter change. More... | |
| class | cPreDisplayStringChangeNotification |
| Model change notification fired just before a display string change. More... | |
| class | cPostDisplayStringChangeNotification |
| Model change notification fired after a dispay string change. More... | |
| class | cITimestampedValue |
| Interface for emitting timestamped values as signals, primarily for result recording. More... | |
| class | cTimestampedValue |
| A straightforward implementation of cITimestampedValue. More... | |
Typedefs | |
| typedef int | simsignal_t |
| Signal handle. More... | |
Enumerations | |
| enum | SimsignalType |
| Signal data types. More... | |
Variables | |
| SIM_API simsignal_t | PRE_MODEL_CHANGE |
| A signal which is fired before simulation model changes such as module creation or connection creation. More... | |
| SIM_API simsignal_t | POST_MODEL_CHANGE |
| A signal which is fired after simulation model changes such as module creation or connection creation. More... | |
| typedef int simsignal_t |
Signal handle.
| enum SimsignalType |
Signal data types.
| SIM_API simsignal_t PRE_MODEL_CHANGE |
A signal which is fired before simulation model changes such as module creation or connection creation.
The signals carry data objects that describe the type and details the change. The data objects are subclassed from cModelChangeNotification, and begin with the prefix "cPre".
These classes include:
In the listener, use dynamic_cast<> to figure out what notification arrived.
This signal is fired on the module or channel affected by the change, and NOT on the module which executes the code that causes the change. For example, preModuleDeleted is fired on the module about to be removed, and not on the module that contains the deleteModule() call.
See also: cComponent::emit(), cComponent::subscribe()
| SIM_API simsignal_t POST_MODEL_CHANGE |
A signal which is fired after simulation model changes such as module creation or connection creation.
The signals carry data objects that describe the type and details the change. The data objects are subclassed from cModelChangeNotification, and begin with the prefix "cPost".
These classes include:
In the listener, use dynamic_cast<> to figure out what notification arrived.
This signal is fired on the module or channel affected by the change, and NOT on the module which executes the code that causes the change. For example, postModuleDeleted is fired on the deleted module's parent module (because the original module no longer exists), and not on the module that contained the deleteModule() call.
See also: cComponent::emit(), cComponent::subscribe()
1.8.17