Module openj9.dtfj

Package com.ibm.j9ddr.corereaders.tdump.zebedee.le

Class Edb

java.lang.Object

com.ibm.j9ddr.corereaders.tdump.zebedee.le.Edb

public class Edb
extends Object

This class represents an LE Enclave Data Block. This provides access to such things as the chain of Dlls. Normally this object is obtained via the Caa, but as a convenience a method is provided to obtain one directly from an AddressSpace.

Constructor Summary

Constructors

Constructor	Description
Edb(long address, AddressSpace space, boolean is64bit)	Constructs a new Edb given the address of the edb structure

Method Summary

Modifier and Type	Method	Description
long	address()	Returns the address of this edb.
long	ceeedb_ceeosigr()	Returns the ceeosigr address
long	ceeedb_qpcb()	Returns the qpcb address
long	ceeedbdba()	Returns the ceeedbdba
long	ceeedbensm()	Returns the ceeedbensm address
long	ceeedboptcb()	Returns the ceeedboptcb (options control block - ocb) address
long	ensm_aheap()
long	ensm_uheap()
static Edb[]	getEdbs(AddressSpace space)	Returns an array of all the Edbs in the given address space.
Properties	getEnvVars()	Return a java.util.Properties object containing the environment variables.
Dll	getFirstDll()	Returns the first in the chain of Dlls (or null if there aren't any).
long	getMallocSize(long ptr)	Given a malloc'd pointer, returns the size of the area.
static Edb	getSampleEdb(AddressSpace space)	Returns a "sample" Edb for the given address space.
boolean	rptstg()	Returns true if the LE runtime option RPTSTG(ON) is set
boolean	storage()	Returns true if the LE runtime option STORAGE(ON) is set

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Edb

public Edb(long address,
 AddressSpace space,
 boolean is64bit)

Constructs a new Edb given the address of the edb structure

Method Details

address

public long address()

Returns the address of this edb.

ceeedbensm

public long ceeedbensm()
                throws IOException

Returns the ceeedbensm address

Throws:

IOException - if an error occurred reading from the address space

ensm_aheap

public long ensm_aheap()
                throws IOException

Throws:

IOException

ensm_uheap

public long ensm_uheap()
                throws IOException

Throws:

IOException

ceeedboptcb

public long ceeedboptcb()
                 throws IOException

Returns the ceeedboptcb (options control block - ocb) address

Throws:

IOException - if an error occurred reading from the address space

ceeedb_ceeosigr

public long ceeedb_ceeosigr()
                     throws IOException

Returns the ceeosigr address

Throws:

IOException - if an error occurred reading from the address space

ceeedb_qpcb

public long ceeedb_qpcb()
                 throws IOException

Returns the qpcb address

Throws:

IOException - if an error occurred reading from the address space

getMallocSize

public long getMallocSize(long ptr)
                   throws IOException,
IllegalArgumentException

Given a malloc'd pointer, returns the size of the area. Note that this may not be the actual size requested in the original malloc call if heap pools are in use because heap pools round up to the nearest pool size. This method is mainly for use in estimating memory usage.

Throws:

IOException - if an error occurred reading from the address space

IllegalArgumentException - if the pointer was not the address of a malloc'd area

ceeedbdba

public long ceeedbdba()
               throws IOException

Returns the ceeedbdba

Throws:

IOException - if an error occurred reading from the address space

getSampleEdb

public static Edb getSampleEdb(AddressSpace space)

Returns a "sample" Edb for the given address space. Note that for certain applications (CICS?) there can be more than one Edb per address space. Returns null if there is no Edb. XXX to be removed once we fix the AddressSpace/Process issue

getEdbs

public static Edb[] getEdbs(AddressSpace space)

Returns an array of all the Edbs in the given address space.

getFirstDll

public Dll getFirstDll()
                throws IOException

Returns the first in the chain of Dlls (or null if there aren't any).

Throws:

IOException - if an error occurred reading from the address space

getEnvVars

public Properties getEnvVars()
                      throws IOException

Return a java.util.Properties object containing the environment variables.

Throws:

IOException

rptstg

public boolean rptstg()
               throws IOException

Returns true if the LE runtime option RPTSTG(ON) is set

Throws:

IOException

storage

public boolean storage()
                throws IOException

Returns true if the LE runtime option STORAGE(ON) is set

Throws:

IOException