Synchronization Classes

Synchronization Classes

The UVM provides event and barrier synchronization classes for managing concurrent processes.

uvm_event#(T):

UVM’s event class augments the SystemVerilog event datatype with such services as setting callbacks and data delivery.

uvm_barrier:

A barrier is used to prevent a pre-configured number of processes from continuing until all have reached a certain point in simulation.

uvm_event_pool and uvm_barrier_pool:

The event and barrier pool classes are specializations of uvm_object_string_pool #(T) used to store collections of ~uvm_event#(uvm_object)~s and uvm_barriers, respectively, indexed by string name. Each pool class contains a static, “global” pool instance for sharing across all processes.

uvm_event_callback:

The event callback is used to create callback objects that may be attached to uvm_events #(T).