Modifier and Type	Class and Description
private static record	FallbackLinker.DowncallData
private static record	FallbackLinker.UpcallData

Modifier and Type	Field and Description
private static final MethodHandle	MH_DO_DOWNCALL
private static final MethodHandle	MH_DO_UPCALL

Access	Constructor and Description
public	FallbackLinker()

Modifier and Type	Method and Description
protected MethodHandle	arrangeDowncall(MethodType inferredMethodType, FunctionDescriptor function, LinkerOptions options) Implements abstract jdk.internal.foreign.abi.AbstractLinker.arrangeDowncall.
protected AbstractLinker.UpcallStubFactory	arrangeUpcall(MethodType targetType, FunctionDescriptor function, LinkerOptions options) Implements abstract jdk.internal.foreign.abi.AbstractLinker.arrangeUpcall.
private static void	assertNotEmpty(FunctionDescriptor fd)
private static void	assertNotEmpty(MemoryLayout layout)
public Map<String, MemoryLayout>	canonicalLayouts() Implements java.lang.foreign.Linker.canonicalLayouts. Returns an unmodifiable mapping between the names of data types used by the ABI implemented by this linker and their canonical layouts.
private static Object	doDowncall(SegmentAllocator returnAllocator, Object[] args, FallbackLinker.DowncallData invData)
private static void	doUpcall(MethodHandle target, MemorySegment retPtr, MemorySegment argPtrs, FallbackLinker.UpcallData data)
private static IllegalArgumentException	empty(MemoryLayout layout)
public static FallbackLinker	getInstance()
public static boolean	isSupported()
private static MemorySegment	makeCif(MethodType methodType, FunctionDescriptor function, LinkerOptions options, Arena scope)
private static Object	readValue(MemorySegment seg, MemoryLayout layout)
private static void	writeValue(Object arg, MemoryLayout layout, MemorySegment argSeg)

MH_DO_DOWNCALL	back to summary
private static final MethodHandle MH_DO_DOWNCALL

MH_DO_UPCALL	back to summary
private static final MethodHandle MH_DO_UPCALL

FallbackLinker	back to summary
public FallbackLinker()

Method Detail

arrangeDowncall	back to summary
protected MethodHandle arrangeDowncall(MethodType inferredMethodType, FunctionDescriptor function, LinkerOptions options) Implements abstract jdk.internal.foreign.abi.AbstractLinker.arrangeDowncall. Annotations @Override

arrangeDowncall

protected MethodHandle arrangeDowncall(MethodType inferredMethodType, FunctionDescriptor function, LinkerOptions options)

Implements abstract jdk.internal.foreign.abi.AbstractLinker.arrangeDowncall.

Annotations

@Override

arrangeUpcall	back to summary
protected AbstractLinker.UpcallStubFactory arrangeUpcall(MethodType targetType, FunctionDescriptor function, LinkerOptions options) Implements abstract jdk.internal.foreign.abi.AbstractLinker.arrangeUpcall. Annotations @Override

arrangeUpcall

back to summary

protected AbstractLinker.UpcallStubFactory arrangeUpcall(MethodType targetType, FunctionDescriptor function, LinkerOptions options)

Implements abstract jdk.internal.foreign.abi.AbstractLinker.arrangeUpcall.

Annotations

@Override

assertNotEmpty	back to summary
private static void assertNotEmpty(FunctionDescriptor fd)

assertNotEmpty	back to summary
private static void assertNotEmpty(MemoryLayout layout)

canonicalLayouts back to summary

canonicalLayouts	back to summary
public Map<String, MemoryLayout> canonicalLayouts() Implements java.lang.foreign.Linker.canonicalLayouts. Doc from java.lang.foreign.Linker.canonicalLayouts. Returns an unmodifiable mapping between the names of data types used by the ABI implemented by this linker and their canonical layouts. Each `Linker` is responsible for choosing the data types that are widely recognized as useful on the OS and processor combination supported by the `Linker`. Accordingly, the precise set of data type names and canonical layouts exposed by the linker are unspecified; they vary from one `Linker` to another. Annotations @Override

public Map<String, MemoryLayout> canonicalLayouts()

Implements java.lang.foreign.Linker.canonicalLayouts.

Doc from java.lang.foreign.Linker.canonicalLayouts.

Returns an unmodifiable mapping between the names of data types used by the ABI implemented by this linker and their canonical layouts.

Each Linker is responsible for choosing the data types that are widely recognized as useful on the OS and processor combination supported by the Linker. Accordingly, the precise set of data type names and canonical layouts exposed by the linker are unspecified; they vary from one Linker to another.

Annotations

@Override

doDowncall	back to summary
private static Object doDowncall(SegmentAllocator returnAllocator, Object[] args, FallbackLinker.DowncallData invData)

doUpcall	back to summary
private static void doUpcall(MethodHandle target, MemorySegment retPtr, MemorySegment argPtrs, FallbackLinker.UpcallData data) throws Throwable Annotations @SuppressWarnings:restricted

empty	back to summary
private static IllegalArgumentException empty(MemoryLayout layout)

getInstance	back to summary
public static FallbackLinker getInstance()

isSupported	back to summary
public static boolean isSupported()

makeCif	back to summary
private static MemorySegment makeCif(MethodType methodType, FunctionDescriptor function, LinkerOptions options, Arena scope)

readValue	back to summary
private static Object readValue(MemorySegment seg, MemoryLayout layout)

writeValue	back to summary
private static void writeValue(Object arg, MemoryLayout layout, MemorySegment argSeg)

jdk.internal.foreign.abi.fallback back to summary

private final Record FallbackLinker.DowncallData

Class Inheritance

extends Record

java.lang.Object
java.lang.Record
jdk.internal.foreign.abi.fallback.FallbackLinker.DowncallData

Record Components

cif:MemorySegment
returnLayout:MemoryLayout
argLayouts:List<MemoryLayout>
capturedStateMask:int
allowsHeapAccess:boolean

Field Summary

Modifier and Type	Field and Description
private final boolean	allowsHeapAccess Record Component accessed by allowsHeapAccess().
private final List<MemoryLayout>	argLayouts Record Component accessed by argLayouts().
private final int	capturedStateMask Record Component accessed by capturedStateMask().
private final MemorySegment	cif Record Component accessed by cif().
private final MemoryLayout	returnLayout Record Component accessed by returnLayout().

Constructor Summary

Access	Constructor and Description
private	DowncallData(MemorySegment cif, MemoryLayout returnLayout, List<MemoryLayout> argLayouts, int capturedStateMask, boolean allowsHeapAccess)

Method Summary

Modifier and Type	Method and Description
public boolean	allowsHeapAccess() Record Component getter of allowsHeapAccess.
public List<MemoryLayout>	argLayouts() Record Component getter of argLayouts.
public int	capturedStateMask() Record Component getter of capturedStateMask.
public MemorySegment	cif() Record Component getter of cif.
public final boolean	equals(Object o) Implements abstract java.lang.Record.equals. Indicates whether some other object is "equal to" this one.
public final int	hashCode() Implements abstract java.lang.Record.hashCode. Returns a hash code value for the record.
public MemoryLayout	returnLayout() Record Component getter of returnLayout.
public final String	toString() Implements abstract java.lang.Record.toString. Returns a string representation of the record.

Field Detail

allowsHeapAccess	back to summary
private final boolean allowsHeapAccess Record Component accessed by allowsHeapAccess().

argLayouts	back to summary
private final List<MemoryLayout> argLayouts Record Component accessed by argLayouts().

capturedStateMask	back to summary
private final int capturedStateMask Record Component accessed by capturedStateMask().

cif	back to summary
private final MemorySegment cif Record Component accessed by cif().

returnLayout	back to summary
private final MemoryLayout returnLayout Record Component accessed by returnLayout().

Constructor Detail

DowncallData	back to summary
private DowncallData(MemorySegment cif, MemoryLayout returnLayout, List<MemoryLayout> argLayouts, int capturedStateMask, boolean allowsHeapAccess)

Method Detail

allowsHeapAccess	back to summary
public boolean allowsHeapAccess() Record Component getter of allowsHeapAccess.

argLayouts	back to summary
public List<MemoryLayout> argLayouts() Record Component getter of argLayouts.

capturedStateMask	back to summary
public int capturedStateMask() Record Component getter of capturedStateMask.

cif	back to summary
public MemorySegment cif() Record Component getter of cif.

equals back to summary

equals	back to summary
public final boolean equals(Object o) Implements abstract java.lang.Record.equals. Doc from java.lang.Record.equals. Indicates whether some other object is "equal to" this one. In addition to the general contract of `Object.equals`, record classes must further obey the invariant that when a record instance is "copied" by passing the result of the record component accessor methods to the canonical constructor, as follows: R copy = new R(r.c1(), r.c2(), ..., r.cn()); then it must be the case that `r.equals(copy)`.

public final boolean equals(Object o)

Implements abstract java.lang.Record.equals.

Doc from java.lang.Record.equals.

Indicates whether some other object is "equal to" this one. In addition to the general contract of Object.equals, record classes must further obey the invariant that when a record instance is "copied" by passing the result of the record component accessor methods to the canonical constructor, as follows:

    R copy = new R(r.c1(), r.c2(), ..., r.cn());

then it must be the case that r.equals(copy).

hashCode back to summary

hashCode	back to summary
public final int hashCode() Implements abstract java.lang.Record.hashCode. Doc from java.lang.Record.hashCode. Returns a hash code value for the record. Obeys the general contract of `Object.hashCode`. For records, hashing behavior is constrained by the refined contract of `Record.equals`, so that any two records created from the same components must have the same hash code.

public final int hashCode()

Implements abstract java.lang.Record.hashCode.

Doc from java.lang.Record.hashCode.

Returns a hash code value for the record. Obeys the general contract of Object.hashCode. For records, hashing behavior is constrained by the refined contract of Record.equals, so that any two records created from the same components must have the same hash code.

returnLayout	back to summary
public MemoryLayout returnLayout() Record Component getter of returnLayout.

toString back to summary

toString	back to summary
public final String toString() Implements abstract java.lang.Record.toString. Doc from java.lang.Record.toString. Returns a string representation of the record. In accordance with the general contract of `Object#toString()`, the `toString` method returns a string that "textually represents" this record. The result should be a concise but informative representation that is easy for a person to read. In addition to this general contract, record classes must further participate in the invariant that any two records which are equal must produce equal strings. This invariant is necessarily relaxed in the rare case where corresponding equal component values might fail to produce equal strings for themselves.

public final String toString()

Implements abstract java.lang.Record.toString.

Doc from java.lang.Record.toString.

Returns a string representation of the record. In accordance with the general contract of Object#toString(), the toString method returns a string that "textually represents" this record. The result should be a concise but informative representation that is easy for a person to read.

In addition to this general contract, record classes must further participate in the invariant that any two records which are equal must produce equal strings. This invariant is necessarily relaxed in the rare case where corresponding equal component values might fail to produce equal strings for themselves.

jdk.internal.foreign.abi.fallback back to summary

private final Record FallbackLinker.UpcallData

Class Inheritance

extends Record

java.lang.Object
java.lang.Record
jdk.internal.foreign.abi.fallback.FallbackLinker.UpcallData

Record Components

returnLayout:MemoryLayout
argLayouts:List<MemoryLayout>
cif:MemorySegment

Field Summary

Modifier and Type	Field and Description
private final List<MemoryLayout>	argLayouts Record Component accessed by argLayouts().
private final MemorySegment	cif Record Component accessed by cif().
private final MemoryLayout	returnLayout Record Component accessed by returnLayout().

Constructor Summary

Access	Constructor and Description
private	UpcallData(MemoryLayout returnLayout, List<MemoryLayout> argLayouts, MemorySegment cif)

Method Summary

Modifier and Type	Method and Description
public List<MemoryLayout>	argLayouts() Record Component getter of argLayouts.
public MemorySegment	cif() Record Component getter of cif.
public final boolean	equals(Object o) Implements abstract java.lang.Record.equals. Indicates whether some other object is "equal to" this one.
public final int	hashCode() Implements abstract java.lang.Record.hashCode. Returns a hash code value for the record.
public MemoryLayout	returnLayout() Record Component getter of returnLayout.
public final String	toString() Implements abstract java.lang.Record.toString. Returns a string representation of the record.

Field Detail

argLayouts	back to summary
private final List<MemoryLayout> argLayouts Record Component accessed by argLayouts().

cif	back to summary
private final MemorySegment cif Record Component accessed by cif().

returnLayout	back to summary
private final MemoryLayout returnLayout Record Component accessed by returnLayout().

Constructor Detail

UpcallData	back to summary
private UpcallData(MemoryLayout returnLayout, List<MemoryLayout> argLayouts, MemorySegment cif)

Method Detail

argLayouts	back to summary
public List<MemoryLayout> argLayouts() Record Component getter of argLayouts.

cif	back to summary
public MemorySegment cif() Record Component getter of cif.

equals back to summary

equals	back to summary
public final boolean equals(Object o) Implements abstract java.lang.Record.equals. Doc from java.lang.Record.equals. Indicates whether some other object is "equal to" this one. In addition to the general contract of `Object.equals`, record classes must further obey the invariant that when a record instance is "copied" by passing the result of the record component accessor methods to the canonical constructor, as follows: R copy = new R(r.c1(), r.c2(), ..., r.cn()); then it must be the case that `r.equals(copy)`.

public final boolean equals(Object o)

Implements abstract java.lang.Record.equals.

Doc from java.lang.Record.equals.

    R copy = new R(r.c1(), r.c2(), ..., r.cn());

then it must be the case that r.equals(copy).

hashCode back to summary

hashCode	back to summary
public final int hashCode() Implements abstract java.lang.Record.hashCode. Doc from java.lang.Record.hashCode. Returns a hash code value for the record. Obeys the general contract of `Object.hashCode`. For records, hashing behavior is constrained by the refined contract of `Record.equals`, so that any two records created from the same components must have the same hash code.

public final int hashCode()

Implements abstract java.lang.Record.hashCode.

Doc from java.lang.Record.hashCode.

returnLayout	back to summary
public MemoryLayout returnLayout() Record Component getter of returnLayout.

toString back to summary

toString	back to summary
public final String toString() Implements abstract java.lang.Record.toString. Doc from java.lang.Record.toString. Returns a string representation of the record. In accordance with the general contract of `Object#toString()`, the `toString` method returns a string that "textually represents" this record. The result should be a concise but informative representation that is easy for a person to read. In addition to this general contract, record classes must further participate in the invariant that any two records which are equal must produce equal strings. This invariant is necessarily relaxed in the rare case where corresponding equal component values might fail to produce equal strings for themselves.

public final String toString()

Implements abstract java.lang.Record.toString.

Doc from java.lang.Record.toString.

public final Class FallbackLinker

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Record FallbackLinker.DowncallData

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Record FallbackLinker.UpcallData

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail