public final class at.yawk.numaec.BumpPointerFileAllocator implements at.yawk.numaec.LargeByteBufferAllocator, java.io.Closeable
minor version: 0
major version: 59
flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
this_class: at.yawk.numaec.BumpPointerFileAllocator
super_class: java.lang.Object
{
private static final int MAP_SIZE_BITS;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 30
public static final java.lang.String KEEP_TEMP_FILE_PROPERTY;
descriptor: Ljava/lang/String;
flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
ConstantValue: "at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE"
private static final boolean KEEP_TEMP_FILE;
descriptor: Z
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private final java.nio.channels.FileChannel channel;
descriptor: Ljava/nio/channels/FileChannel;
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
static void <clinit>();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=2, locals=0, args_size=0
0: ldc "at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE"
invokestatic java.lang.Boolean.getBoolean:(Ljava/lang/String;)Z
putstatic at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE:Z
1: getstatic at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE:Z
ifeq 5
2: getstatic java.lang.System.err:Ljava/io/PrintStream;
3: ldc "at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE is enabled. This is purely a debugging option - the format of file-based collections is not compatible across versions!"
4: invokevirtual java.io.PrintStream.println:(Ljava/lang/String;)V
5: StackMap locals:
StackMap stack:
return
LocalVariableTable:
Start End Slot Name Signature
private void <init>(java.nio.channels.FileChannel);
descriptor: (Ljava/nio/channels/FileChannel;)V
flags: (0x0002) ACC_PRIVATE
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: aload 0
invokespecial java.lang.Object.<init>:()V
1: aload 0
aload 1
putfield at.yawk.numaec.BumpPointerFileAllocator.channel:Ljava/nio/channels/FileChannel;
2: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Lat/yawk/numaec/BumpPointerFileAllocator;
0 3 1 channel Ljava/nio/channels/FileChannel;
MethodParameters:
Name Flags
channel
public static at.yawk.numaec.BumpPointerFileAllocator fromChannel(java.nio.channels.FileChannel);
descriptor: (Ljava/nio/channels/FileChannel;)Lat/yawk/numaec/BumpPointerFileAllocator;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=3, locals=1, args_size=1
start local 0 0: new at.yawk.numaec.BumpPointerFileAllocator
dup
aload 0
invokespecial at.yawk.numaec.BumpPointerFileAllocator.<init>:(Ljava/nio/channels/FileChannel;)V
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 channel Ljava/nio/channels/FileChannel;
MethodParameters:
Name Flags
channel
public static at.yawk.numaec.BumpPointerFileAllocator fromTempDirectory(java.nio.file.Path);
descriptor: (Ljava/nio/file/Path;)Lat/yawk/numaec/BumpPointerFileAllocator;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=7, locals=5, args_size=1
start local 0 0: new java.util.HashSet
dup
invokespecial java.util.HashSet.<init>:()V
astore 1
start local 1 1: aload 1
getstatic java.nio.file.attribute.PosixFilePermission.OWNER_READ:Ljava/nio/file/attribute/PosixFilePermission;
invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
pop
2: aload 1
getstatic java.nio.file.attribute.PosixFilePermission.OWNER_WRITE:Ljava/nio/file/attribute/PosixFilePermission;
invokeinterface java.util.Set.add:(Ljava/lang/Object;)Z
pop
3: aload 0
4: ldc Lat/yawk/numaec/BumpPointerFileAllocator;
invokevirtual java.lang.Class.getName:()Ljava/lang/String;
5: aconst_null
iconst_1
anewarray java.nio.file.attribute.FileAttribute
dup
iconst_0
6: aload 1
invokestatic java.nio.file.attribute.PosixFilePermissions.asFileAttribute:(Ljava/util/Set;)Ljava/nio/file/attribute/FileAttribute;
aastore
7: invokestatic java.nio.file.Files.createTempFile:(Ljava/nio/file/Path;Ljava/lang/String;Ljava/lang/String;[Ljava/nio/file/attribute/FileAttribute;)Ljava/nio/file/Path;
astore 2
start local 2 8: aload 2
iconst_2
anewarray java.nio.file.OpenOption
dup
iconst_0
getstatic java.nio.file.StandardOpenOption.READ:Ljava/nio/file/StandardOpenOption;
aastore
dup
iconst_1
getstatic java.nio.file.StandardOpenOption.WRITE:Ljava/nio/file/StandardOpenOption;
aastore
invokestatic java.nio.channels.FileChannel.open:(Ljava/nio/file/Path;[Ljava/nio/file/OpenOption;)Ljava/nio/channels/FileChannel;
invokestatic at.yawk.numaec.BumpPointerFileAllocator.fromChannel:(Ljava/nio/channels/FileChannel;)Lat/yawk/numaec/BumpPointerFileAllocator;
astore 4
9: getstatic at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE:Z
ifne 11
10: aload 2
invokestatic java.nio.file.Files.delete:(Ljava/nio/file/Path;)V
11: StackMap locals: java.nio.file.Path java.util.Set java.nio.file.Path top at.yawk.numaec.BumpPointerFileAllocator
StackMap stack:
aload 4
areturn
12: StackMap locals: java.nio.file.Path java.util.Set java.nio.file.Path
StackMap stack: java.lang.Throwable
astore 3
13: getstatic at.yawk.numaec.BumpPointerFileAllocator.KEEP_TEMP_FILE:Z
ifne 15
14: aload 2
invokestatic java.nio.file.Files.delete:(Ljava/nio/file/Path;)V
15: StackMap locals: java.lang.Throwable
StackMap stack:
aload 3
athrow
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 16 0 tmpDirectory Ljava/nio/file/Path;
1 16 1 permissions Ljava/util/Set<Ljava/nio/file/attribute/PosixFilePermission;>;
8 16 2 tempFile Ljava/nio/file/Path;
Exception table:
from to target type
8 9 12 any
Exceptions:
throws java.io.IOException
MethodParameters:
Name Flags
tmpDirectory
public at.yawk.numaec.LargeByteBuffer allocate(long);
descriptor: (J)Lat/yawk/numaec/LargeByteBuffer;
flags: (0x0001) ACC_PUBLIC
Code:
stack=10, locals=11, args_size=2
start local 0 start local 1 0: lload 1
lconst_0
lcmp
ifne 2
1: getstatic at.yawk.numaec.LargeByteBuffer.EMPTY:Lat/yawk/numaec/LargeByteBuffer;
areturn
2: StackMap locals:
StackMap stack:
aload 0
getfield at.yawk.numaec.BumpPointerFileAllocator.channel:Ljava/nio/channels/FileChannel;
invokevirtual java.nio.channels.FileChannel.size:()J
lstore 3
start local 3 3: aload 0
getfield at.yawk.numaec.BumpPointerFileAllocator.channel:Ljava/nio/channels/FileChannel;
lload 3
lload 1
ladd
invokevirtual java.nio.channels.FileChannel.truncate:(J)Ljava/nio/channels/FileChannel;
pop
4: lload 1
lconst_1
lsub
bipush 30
lshr
lconst_1
ladd
l2i
anewarray java.nio.ByteBuffer
astore 5
start local 5 5: iconst_0
istore 6
start local 6 6: goto 11
7: StackMap locals: long java.nio.ByteBuffer[] int
StackMap stack:
lload 3
iload 6
i2l
bipush 30
lshl
ladd
lstore 7
start local 7 8: lload 3
lload 1
ladd
lload 3
iload 6
i2l
lconst_1
ladd
bipush 30
lshl
ladd
invokestatic java.lang.Math.min:(JJ)J
lstore 9
start local 9 9: aload 5
iload 6
aload 0
getfield at.yawk.numaec.BumpPointerFileAllocator.channel:Ljava/nio/channels/FileChannel;
getstatic java.nio.channels.FileChannel$MapMode.READ_WRITE:Ljava/nio/channels/FileChannel$MapMode;
lload 7
lload 9
lload 7
lsub
invokevirtual java.nio.channels.FileChannel.map:(Ljava/nio/channels/FileChannel$MapMode;JJ)Ljava/nio/MappedByteBuffer;
aastore
end local 9 end local 7 10: iinc 6 1
StackMap locals:
StackMap stack:
11: iload 6
aload 5
arraylength
if_icmplt 7
end local 6 12: new at.yawk.numaec.ByteBufferBackedLargeByteBuffer
dup
aload 5
ldc 1073741824
invokespecial at.yawk.numaec.ByteBufferBackedLargeByteBuffer.<init>:([Ljava/nio/ByteBuffer;I)V
13: areturn
end local 5 end local 3 14: StackMap locals: at.yawk.numaec.BumpPointerFileAllocator long
StackMap stack: java.io.IOException
astore 3
start local 3 15: new java.io.UncheckedIOException
dup
aload 3
invokespecial java.io.UncheckedIOException.<init>:(Ljava/io/IOException;)V
athrow
end local 3 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 16 0 this Lat/yawk/numaec/BumpPointerFileAllocator;
0 16 1 size J
3 14 3 start J
5 14 5 parts [Ljava/nio/ByteBuffer;
6 12 6 i I
8 10 7 partStart J
9 10 9 partEnd J
15 16 3 e Ljava/io/IOException;
Exception table:
from to target type
2 13 14 Class java.io.IOException
MethodParameters:
Name Flags
size
public void close();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
getfield at.yawk.numaec.BumpPointerFileAllocator.channel:Ljava/nio/channels/FileChannel;
invokevirtual java.nio.channels.FileChannel.close:()V
1: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Lat/yawk/numaec/BumpPointerFileAllocator;
Exceptions:
throws java.io.IOException
}
SourceFile: "BumpPointerFileAllocator.java"
InnerClasses:
public MapMode = java.nio.channels.FileChannel$MapMode of java.nio.channels.FileChannel