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more MessageBuilder constructors

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This commit is contained in:
David Renshaw 2014-06-15 14:17:32 -04:00
parent 74fccc9461
commit 0c56671f3c
2 changed files with 30 additions and 3 deletions
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20
runtime/src/main/java/org/capnproto/BuilderArena.java
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@ -6,12 +6,28 @@ import java.util.Vector;
public final class BuilderArena implements Arena {
public enum AllocationStrategy {
FIXED_SIZE,
GROW_HEURISTICALLY
}
public static final int SUGGESTED_FIRST_SEGMENT_WORDS = 1024;
public static final AllocationStrategy SUGGESTED_ALLOCATION_STRATEGY =
AllocationStrategy.GROW_HEURISTICALLY;
// Maybe this should be ArrayList?
public final Vector<SegmentBuilder> segments;
public BuilderArena() {
public int nextSize;
public final AllocationStrategy allocationStrategy;
public BuilderArena(int firstSegmentSizeWords, AllocationStrategy allocationStrategy) {
this.segments = new Vector<SegmentBuilder>();
SegmentBuilder segment0 = new SegmentBuilder(ByteBuffer.allocate(1024 * 8));
this.nextSize = firstSegmentSizeWords;
this.allocationStrategy = allocationStrategy;
SegmentBuilder segment0 = new SegmentBuilder(
ByteBuffer.allocate(firstSegmentSizeWords * Constants.BYTES_PER_WORD));
segment0.buffer.mark();
segment0.buffer.order(ByteOrder.LITTLE_ENDIAN);
this.segments.add(segment0);

13
runtime/src/main/java/org/capnproto/MessageBuilder.java
View file

@ -5,7 +5,18 @@ public final class MessageBuilder {
private final BuilderArena arena;
public MessageBuilder() {
this.arena = new BuilderArena();
this.arena = new BuilderArena(BuilderArena.SUGGESTED_FIRST_SEGMENT_WORDS,
BuilderArena.SUGGESTED_ALLOCATION_STRATEGY);
}
public MessageBuilder(int firstSegmentWords) {
this.arena = new BuilderArena(firstSegmentWords,
BuilderArena.SUGGESTED_ALLOCATION_STRATEGY);
}
public MessageBuilder(int firstSegmentWords, BuilderArena.AllocationStrategy allocationStrategy) {
this.arena = new BuilderArena(firstSegmentWords,
allocationStrategy);
}
public <T> T getRoot(FromStructBuilder<T> factory) {