Class uvm_pkg::uvm_resource_base

• uvm_pkg :: uvm_void

  • uvm_pkg :: uvm_object

    • uvm_pkg :: uvm_resource_base

Inheritance Diagram of uvm_resource_base

Class

uvm_resource_base

Non-parameterized base class for resources. Supports interfaces for scope matching, and virtual functions for printing the resource and for printing the accessor list

Variables

Name	Type	Description
access	uvm_resource_types::access_t
precedence	int unsigned	variable precedence This variable is used to associate a precedence that a resource has with respect to other resources which match the same scope and name. Resources are set to the default_precedence initially, and may be set to a higher or lower precedence as desired.
default_precedence	int unsigned	variable default_precedence The default precedence for an resource that has been created. When two resources have the same precedence, the first resource found has precedence.

Constructors

function

new(string name = "", string s = "*")

Function

new

constructor for uvm_resource_base. The constructor takes two arguments, the name of the resource and a regular expression which represents the set of scopes over which this resource is visible.

Parameters:

• name (string)

• s (string)

Functions

virtual function uvm_resource_base

get_type_handle()

Function

get_type_handle

Pure virtual function that returns the type handle of the resource container.

Return type:

uvm_resource_base

function void

set_read_only()

Function

set_read_only

Establishes this resource as a read-only resource. An attempt to call <uvm_resource#(T)::write> on the resource will cause an error.

function void

set_read_write()

Implementation question

Not sure if this function is necessary.

Once a resource is set to read_only no one should be able to change that. If anyone can flip the read_only bit then the resource is not truly read_only.

function bit

is_read_only()

Function

is_read_only

Returns one if this resource has been set to read-only, zero otherwise

function void

set_scope(string s)

Function

set_scope

Set the value of the regular expression that identifies the set of scopes over which this resource is visible. If the supplied argument is a glob it will be converted to a regular expression before it is stored.

Parameters:

s (string)

function string

get_scope()

Function

get_scope

Retrieve the regular expression string that identifies the set of scopes over which this resource is visible.

function bit

match_scope(string s)

Function

match_scope

Using the regular expression facility, determine if this resource is visible in a scope. Return one if it is, zero otherwise.

Parameters:

s (string)

virtual function void

set_priority(uvm_resource_types::priority_e pri)

Function

set priority

Change the search priority of the resource based on the value of the priority enum argument.

Parameters:

pri (uvm_resource_types::priority_e)

virtual function string

convert2string()

function convert2string

Create a string representation of the resource value. By default we don't know how to do this so we just return a "?". Resource specializations are expected to override this function to produce a proper string representation of the resource value.

virtual function void

do_print(uvm_printer printer)

Function

do_print

Implementation of do_print which is called by print().

Parameters:

printer (uvm_printer)

function void

record_read_access(uvm_object accessor = null)

function

record_read_access

Parameters:

accessor (uvm_object)

function void

record_write_access(uvm_object accessor = null)

function

record_write_access

Parameters:

accessor (uvm_object)

virtual function void

print_accessors()

Function

print_accessors

Dump the access records for this resource

function void

init_access_record(uvm_resource_types::access_t access_record)

Function

init_access_record

Initialize a new access record

Parameters:

access_record (uvm_resource_types::access_t)

Tasks

function

wait_modified()

Task

wait_modified

This task blocks until the resource has been modified -- that is, a <uvm_resource#(T)::write> operation has been performed. When a <uvm_resource#(T)::write> is performed the modified bit is set which releases the block. Wait_modified() then clears the modified bit so it can be called repeatedly.

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