org.jruby.ext.ffi
Class Pointer

java.lang.Object
  extended by org.jruby.RubyBasicObject
      extended by org.jruby.RubyObject
          extended by org.jruby.ext.ffi.AbstractMemory
              extended by org.jruby.ext.ffi.Pointer
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, InstanceVariables, InternalVariables, IRubyObject, CoreObjectType
Direct Known Subclasses:
AbstractMemoryPointer, AutoPointer

public abstract class Pointer
extends AbstractMemory

C memory pointer operations.

This is an abstract class that defines Pointer operations

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.jruby.RubyObject
RubyObject.ObjectMethods
 
Nested classes/interfaces inherited from class org.jruby.RubyBasicObject
RubyBasicObject.BasicObjectMethods, RubyBasicObject.Finalizer, RubyBasicObject.VariableTableEntry
 
Field Summary
 
Fields inherited from class org.jruby.ext.ffi.AbstractMemory
ABSTRACT_MEMORY_RUBY_CLASS, io, offset, size
 
Fields inherited from class org.jruby.RubyObject
OBJECT_ALLOCATOR
 
Fields inherited from class org.jruby.RubyBasicObject
ALL_F, dataStruct, ERR_INSECURE_SET_INST_VAR, FALSE_F, FL_USHIFT, flags, FROZEN_F, metaClass, NEVER, NIL_F, TAINTED_F, UNDEF, USER0_F, USER1_F, USER2_F, USER3_F, USER4_F, USER5_F, USER6_F, USER7_F, VARIABLE_TABLE_DEFAULT_CAPACITY, VARIABLE_TABLE_EMPTY_TABLE, VARIABLE_TABLE_LOAD_FACTOR, VARIABLE_TABLE_MAXIMUM_CAPACITY, variableTable, variableTableSize, variableTableThreshold
 
Fields inherited from interface org.jruby.runtime.builtin.IRubyObject
NULL_ARRAY
 
Constructor Summary
protected Pointer(Ruby runtime, RubyClass klass, MemoryIO io, long offset, long size)
           
 
Method Summary
static RubyClass createPointerClass(Ruby runtime, RubyModule module)
           
 IRubyObject null_p(ThreadContext context)
          Tests if this Pointer represents the C NULL value.
 
Methods inherited from class org.jruby.ext.ffi.AbstractMemory
checkBounds, checkBounds, checkBounds, clear, createAbstractMemoryClass, eql, equals, get_array_of_float, get_array_of_float64, get_array_of_int16, get_array_of_int32, get_array_of_int64, get_array_of_int8, get_array_of_long, get_buffer, get_bytes, get_float32, get_float64, get_int16, get_int32, get_int64, get_int8, get_long, get_pointer, get_string, get_string, get_uint16, get_uint32, get_uint8, get_ulong, getMemoryIO, getOffset, getOffset, getPointer, getSize, hash, hashCode, op_equal, put_array_of_float, put_array_of_float64, put_array_of_int16, put_array_of_int32, put_array_of_int64, put_array_of_int8, put_array_of_long, put_buffer, put_bytes, put_float32, put_float64, put_int16, put_int32, put_int64, put_int8, put_long, put_string, put_uint16, put_uint32, put_uint8, put_ulong, to_s, total
 
Methods inherited from class org.jruby.RubyObject
as, attachToObjectSpace, callInit, checkFrozen, convertToType, createObjectClass, display, dup, eql_p, eqlInternal, equal_p, equalInternal, evalUnder, evalUnder, extend, freeze, frozen_p, getNativeTypeIndex, hash, id_deprecated, id, initialize_copy, initialize, inspect, instance_eval, instance_eval, instance_eval, instance_eval, instance_eval, instance_exec, instance_of_p, instance_variable_defined_p, instance_variable_get, instance_variable_set, instance_variables, kind_of_p, method, methods, nil_p, op_eqq, op_match, private_methods, protected_methods, public_methods, puts, rbClone, remove_instance_variable, respond_to_p, respond_to_p, send, send, send, send, send, singleton_methods, singleton_methods19, singletonMethods, specificEval, specificEval, specificEval, specificEval, specificEval, taint, tainted_p, to_a, to_java, to_s, toString, type_deprecated, type, untaint, validateInstanceVariable
 
Methods inherited from class org.jruby.RubyBasicObject
addFinalizer, anyToString, asJavaString, asString, callMethod, callMethod, callMethod, callMethod, callMethod, callMethod, callSuper, checkArrayType, checkStringType, convertToArray, convertToFloat, convertToHash, convertToInteger, convertToInteger, convertToInteger, convertToString, copyInstanceVariablesInto, copySpecialInstanceVariables, createBasicObjectClass, dataGetStruct, dataWrapStruct, ensureInstanceVariablesSettable, fastGetInstanceVariable, fastGetInternalVariable, fastHasInstanceVariable, fastHasInternalVariable, fastSetInstanceVariable, fastSetInternalVariable, getFlag, getInstanceVariable, getInstanceVariableList, getInstanceVariableNameList, getInstanceVariables, getInternalVariable, getInternalVariableList, getInternalVariables, getJavaClass, getMetaClass, getRuntime, getSingletonClass, getSingletonClassClone, getType, getVariableCount, getVariableList, getVariableMap, getVariableNameList, hasInstanceVariable, hasInternalVariable, hasVariables, infectBy, isClass, isFalse, isFrozen, isImmediate, isModule, isNil, isRubyVariable, isTaint, isTrue, makeMetaClass, op_not_equal, op_not, removeFinalizers, removeInstanceVariable, removeInternalVariable, respondsTo, setFlag, setFrozen, setInstanceVariable, setInternalVariable, setMetaClass, setTaint, syncVariables, taint, testFrozen, variableTableContains, variableTableFastContains, variableTableFastFetch, variableTableFastStore, variableTableFetch, variableTableGetMap, variableTableGetMap, variableTableGetSize, variableTableGetTable, variableTableReadLocked, variableTableRehash, variableTableRemove, variableTableStore, variableTableSync
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Pointer

protected Pointer(Ruby runtime,
                  RubyClass klass,
                  MemoryIO io,
                  long offset,
                  long size)
Method Detail

createPointerClass

public static RubyClass createPointerClass(Ruby runtime,
                                           RubyModule module)

null_p

public IRubyObject null_p(ThreadContext context)
Tests if this Pointer represents the C NULL value.

Returns:
true if the address is NULL.


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