serverscanning/capnproto-java-rpc
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get rid of struct list packing optimization

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This commit is contained in:
David Renshaw 2014-10-26 09:31:09 -04:00
parent 8599ffc7a7
commit 9c5b64b98b
4 changed files with 26 additions and 13 deletions
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3
compiler/src/main/cpp/capnpc-java.c++
View file

@ -1151,8 +1151,7 @@ private:
kj::strTree(
spaces(indent), " public static final org.capnproto.StructSize STRUCT_SIZE =\n",
spaces(indent), " new org.capnproto.StructSize((short)", structNode.getDataWordCount(),
",(short)", structNode.getPointerCount(),
", org.capnproto.ElementSize.", FIELD_SIZE_NAMES[(int)structNode.getPreferredListEncoding()], ");\n"),
",(short)", structNode.getPointerCount(), ");\n"),
spaces(indent), " public static final class Factory extends org.capnproto.StructFactory<Builder, Reader> {\n",
spaces(indent),

4
runtime/src/main/java/org/capnproto/StructSize.java
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@ -24,12 +24,10 @@ package org.capnproto;
public final class StructSize {
public final short data; // number of words in data section
public final short pointers; // number of words in pointer section
public final byte preferredListEncoding; // a FieldSize
public StructSize(short data, short pointers, byte preferredListEncoding) {
public StructSize(short data, short pointers) {
this.data = data;
this.pointers = pointers;
this.preferredListEncoding = preferredListEncoding;
}
public final int total() {

30
runtime/src/main/java/org/capnproto/WireHelpers.java
View file

@ -237,12 +237,6 @@ final class WireHelpers {
SegmentBuilder segment,
int elementCount,
StructSize elementSize) {
if (elementSize.preferredListEncoding != ElementSize.INLINE_COMPOSITE) {
//# Small data-only struct. Allocate a list of primitives instead.
return initListPointer(factory, refOffset, segment, elementCount,
elementSize.preferredListEncoding);
}
int wordsPerElement = elementSize.total();
//# Allocate the list, prefixed by a single WirePointer.
@ -278,7 +272,7 @@ final class WireHelpers {
}
//# We must verify that the pointer has the right size. Unlike
//# in getWritableStructListReference(), we never need to
//# in getWritableStructListPointer(), we never need to
//# "upgrade" the data, because this method is called only for
//# non-struct lists, and there is no allowed upgrade path *to*
//# a non-struct list, only *from* them.
@ -326,6 +320,28 @@ final class WireHelpers {
StructSize elementSize,
SegmentReader defaultSegment,
int defaultOffset) {
long origRef = WirePointer.get(origSegment.buffer, origRefOffset);
int origRefTarget = WirePointer.target(origRefOffset, origRef);
if (WirePointer.isNull(origRef)) {
throw new Error("unimplemented");
}
//# We must verify that the pointer has the right size and potentially upgrade it if not.
FollowBuilderFarsResult resolved = followBuilderFars(origRef, origRefTarget, origSegment);
if (WirePointer.kind(resolved.ref) != WirePointer.LIST) {
throw new DecodeException("Called getList{Field,Element}() but existing pointer is not a list");
}
byte oldSize = ListPointer.elementSize(resolved.ref);
if (oldSize == ElementSize.INLINE_COMPOSITE) {
// ...
} else {
// ...
}
throw new Error("getWritableStructListPointer is unimplemented");
}

2
runtime/src/test/scala/org/capnproto/LayoutTest.scala
View file

@ -137,7 +137,7 @@ class LayoutSuite extends FunSuite {
val segment = new SegmentBuilder(buffer, new BuilderArena(BuilderArena.SUGGESTED_FIRST_SEGMENT_WORDS,
BuilderArena.SUGGESTED_ALLOCATION_STRATEGY))
val factory = new BareStructBuilder(new StructSize(2, 4, ElementSize.INLINE_COMPOSITE));
val factory = new BareStructBuilder(new StructSize(2, 4));
val builder = WireHelpers.initStructPointer(factory, 0, segment, factory.structSize());
setupStruct(builder);
checkStruct(builder);