public class org.h2.store.PageFreeList extends org.h2.store.Page
minor version: 0
major version: 59
flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
this_class: org.h2.store.PageFreeList
super_class: org.h2.store.Page
{
private static final int DATA_START;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 3
private final org.h2.store.PageStore store;
descriptor: Lorg/h2/store/PageStore;
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final java.util.BitSet used;
descriptor: Ljava/util/BitSet;
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final int pageCount;
descriptor: I
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private boolean full;
descriptor: Z
flags: (0x0002) ACC_PRIVATE
private org.h2.store.Data data;
descriptor: Lorg/h2/store/Data;
flags: (0x0002) ACC_PRIVATE
private void <init>(org.h2.store.PageStore, int, int, java.util.BitSet);
descriptor: (Lorg/h2/store/PageStore;IILjava/util/BitSet;)V
flags: (0x0002) ACC_PRIVATE
Code:
stack=2, locals=5, args_size=5
start local 0 start local 1 start local 2 start local 3 start local 4 0: aload 0
invokespecial org.h2.store.Page.<init>:()V
1: aload 0
iload 2
invokevirtual org.h2.store.PageFreeList.setPos:(I)V
2: aload 0
aload 1
putfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
3: aload 0
iload 3
putfield org.h2.store.PageFreeList.pageCount:I
4: aload 0
aload 4
putfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
5: return
end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 6 0 this Lorg/h2/store/PageFreeList;
0 6 1 store Lorg/h2/store/PageStore;
0 6 2 pageId I
0 6 3 pageCount I
0 6 4 used Ljava/util/BitSet;
MethodParameters:
Name Flags
store
pageId
pageCount
used
static org.h2.store.PageFreeList read(org.h2.store.PageStore, org.h2.store.Data, int);
descriptor: (Lorg/h2/store/PageStore;Lorg/h2/store/Data;I)Lorg/h2/store/PageFreeList;
flags: (0x0008) ACC_STATIC
Code:
stack=6, locals=6, args_size=3
start local 0 start local 1 start local 2 0: aload 1
invokevirtual org.h2.store.Data.reset:()V
1: aload 1
invokevirtual org.h2.store.Data.readByte:()B
pop
2: aload 1
invokevirtual org.h2.store.Data.readShortInt:()S
pop
3: aload 0
invokevirtual org.h2.store.PageStore.getPageSize:()I
iconst_3
isub
istore 3
start local 3 4: iload 3
newarray 8
astore 4
start local 4 5: aload 1
aload 4
iconst_0
aload 4
arraylength
invokevirtual org.h2.store.Data.read:([BII)V
6: new org.h2.store.PageFreeList
dup
aload 0
iload 2
iload 3
bipush 8
imul
aload 4
invokestatic java.util.BitSet.valueOf:([B)Ljava/util/BitSet;
invokespecial org.h2.store.PageFreeList.<init>:(Lorg/h2/store/PageStore;IILjava/util/BitSet;)V
astore 5
start local 5 7: aload 5
aload 1
putfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
8: aload 5
iconst_0
putfield org.h2.store.PageFreeList.full:Z
9: aload 5
areturn
end local 5 end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 10 0 store Lorg/h2/store/PageStore;
0 10 1 data Lorg/h2/store/Data;
0 10 2 pageId I
4 10 3 length I
5 10 4 b [B
7 10 5 p Lorg/h2/store/PageFreeList;
MethodParameters:
Name Flags
store
data
pageId
static org.h2.store.PageFreeList create(org.h2.store.PageStore, int);
descriptor: (Lorg/h2/store/PageStore;I)Lorg/h2/store/PageFreeList;
flags: (0x0008) ACC_STATIC
Code:
stack=6, locals=4, args_size=2
start local 0 start local 1 0: aload 0
invokevirtual org.h2.store.PageStore.getPageSize:()I
iconst_3
isub
bipush 8
imul
istore 2
start local 2 1: new java.util.BitSet
dup
iload 2
invokespecial java.util.BitSet.<init>:(I)V
astore 3
start local 3 2: aload 3
iconst_0
invokevirtual java.util.BitSet.set:(I)V
3: new org.h2.store.PageFreeList
dup
aload 0
iload 1
iload 2
aload 3
invokespecial org.h2.store.PageFreeList.<init>:(Lorg/h2/store/PageStore;IILjava/util/BitSet;)V
areturn
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 4 0 store Lorg/h2/store/PageStore;
0 4 1 pageId I
1 4 2 pageCount I
2 4 3 used Ljava/util/BitSet;
MethodParameters:
Name Flags
store
pageId
int allocate(java.util.BitSet, int);
descriptor: (Ljava/util/BitSet;I)I
flags: (0x0000)
Code:
stack=3, locals=5, args_size=3
start local 0 start local 1 start local 2 0: aload 0
getfield org.h2.store.PageFreeList.full:Z
ifeq 2
1: iconst_m1
ireturn
2: StackMap locals:
StackMap stack:
iconst_0
iload 2
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
isub
invokestatic java.lang.Math.max:(II)I
istore 3
start local 3 3: StackMap locals: int
StackMap stack:
aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 3
invokevirtual java.util.BitSet.nextClearBit:(I)I
istore 4
start local 4 4: iload 4
aload 0
getfield org.h2.store.PageFreeList.pageCount:I
if_icmplt 8
5: iload 3
ifne 7
6: aload 0
iconst_1
putfield org.h2.store.PageFreeList.full:Z
7: StackMap locals: int
StackMap stack:
iconst_m1
ireturn
8: StackMap locals:
StackMap stack:
aload 1
ifnull 12
aload 1
iload 4
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
iadd
invokevirtual java.util.BitSet.get:(I)Z
ifeq 12
9: aload 1
iload 4
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
iadd
invokevirtual java.util.BitSet.nextClearBit:(I)I
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
isub
istore 3
10: iload 3
aload 0
getfield org.h2.store.PageFreeList.pageCount:I
if_icmplt 3
11: iconst_m1
ireturn
12: StackMap locals:
StackMap stack:
aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 4
invokevirtual java.util.BitSet.set:(I)V
13: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
invokevirtual org.h2.store.PageStore.logUndo:(Lorg/h2/store/Page;Lorg/h2/store/Data;)V
14: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
invokevirtual org.h2.store.PageStore.update:(Lorg/h2/store/Page;)V
15: iload 4
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
iadd
ireturn
end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 16 0 this Lorg/h2/store/PageFreeList;
0 16 1 exclude Ljava/util/BitSet;
0 16 2 first I
3 16 3 start I
4 16 4 free I
MethodParameters:
Name Flags
exclude
first
int getFirstFree(int);
descriptor: (I)I
flags: (0x0000)
Code:
stack=3, locals=4, args_size=2
start local 0 start local 1 0: aload 0
getfield org.h2.store.PageFreeList.full:Z
ifeq 2
1: iconst_m1
ireturn
2: StackMap locals:
StackMap stack:
iconst_0
iload 1
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
isub
invokestatic java.lang.Math.max:(II)I
istore 2
start local 2 3: aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 2
invokevirtual java.util.BitSet.nextClearBit:(I)I
istore 3
start local 3 4: iload 3
aload 0
getfield org.h2.store.PageFreeList.pageCount:I
if_icmplt 6
5: iconst_m1
ireturn
6: StackMap locals: int int
StackMap stack:
iload 3
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
iadd
ireturn
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 7 0 this Lorg/h2/store/PageFreeList;
0 7 1 first I
3 7 2 start I
4 7 3 free I
MethodParameters:
Name Flags
first
int getLastUsed();
descriptor: ()I
flags: (0x0000)
Code:
stack=2, locals=2, args_size=1
start local 0 0: aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
invokevirtual java.util.BitSet.length:()I
iconst_1
isub
istore 1
start local 1 1: iload 1
ifgt 2
iconst_m1
goto 3
StackMap locals: int
StackMap stack:
2: iload 1
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
iadd
StackMap locals:
StackMap stack: int
3: ireturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/h2/store/PageFreeList;
1 4 1 last I
void allocate(int);
descriptor: (I)V
flags: (0x0000)
Code:
stack=3, locals=3, args_size=2
start local 0 start local 1 0: iload 1
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
isub
istore 2
start local 2 1: iload 2
iflt 5
aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 2
invokevirtual java.util.BitSet.get:(I)Z
ifne 5
2: aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 2
invokevirtual java.util.BitSet.set:(I)V
3: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
invokevirtual org.h2.store.PageStore.logUndo:(Lorg/h2/store/Page;Lorg/h2/store/Data;)V
4: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
invokevirtual org.h2.store.PageStore.update:(Lorg/h2/store/Page;)V
5: StackMap locals: int
StackMap stack:
return
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 6 0 this Lorg/h2/store/PageFreeList;
0 6 1 pageId I
1 6 2 idx I
MethodParameters:
Name Flags
pageId
void free(int);
descriptor: (I)V
flags: (0x0000)
Code:
stack=3, locals=2, args_size=2
start local 0 start local 1 0: aload 0
iconst_0
putfield org.h2.store.PageFreeList.full:Z
1: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
invokevirtual org.h2.store.PageStore.logUndo:(Lorg/h2/store/Page;Lorg/h2/store/Data;)V
2: aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 1
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
isub
invokevirtual java.util.BitSet.clear:(I)V
3: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
invokevirtual org.h2.store.PageStore.update:(Lorg/h2/store/Page;)V
4: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lorg/h2/store/PageFreeList;
0 5 1 pageId I
MethodParameters:
Name Flags
pageId
public void write();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=5, args_size=1
start local 0 0: aload 0
aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
invokevirtual org.h2.store.PageStore.createData:()Lorg/h2/store/Data;
putfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
1: aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
bipush 6
invokevirtual org.h2.store.Data.writeByte:(B)V
2: aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
iconst_0
invokevirtual org.h2.store.Data.writeShortInt:(I)V
3: aload 0
getfield org.h2.store.PageFreeList.pageCount:I
iconst_3
iushr
istore 1
start local 1 4: aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
invokevirtual java.util.BitSet.toByteArray:()[B
astore 2
start local 2 5: aload 2
arraylength
iload 1
invokestatic java.lang.Math.min:(II)I
istore 3
start local 3 6: aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
aload 2
iconst_0
iload 3
invokevirtual org.h2.store.Data.write:([BII)V
7: iload 1
iload 3
isub
istore 4
start local 4 8: goto 11
9: StackMap locals: org.h2.store.PageFreeList int byte[] int int
StackMap stack:
aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
iconst_0
invokevirtual org.h2.store.Data.writeByte:(B)V
10: iinc 4 -1
StackMap locals:
StackMap stack:
11: iload 4
ifgt 9
end local 4 12: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
aload 0
getfield org.h2.store.PageFreeList.data:Lorg/h2/store/Data;
invokevirtual org.h2.store.PageStore.writePage:(ILorg/h2/store/Data;)V
13: return
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 14 0 this Lorg/h2/store/PageFreeList;
4 14 1 cnt I
5 14 2 b [B
6 14 3 l I
8 12 4 i I
public static int getPagesAddressed(int);
descriptor: (I)I
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: iload 0
iconst_3
isub
bipush 8
imul
ireturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 pageSize I
MethodParameters:
Name Flags
pageSize
public int getMemory();
descriptor: ()I
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
invokevirtual org.h2.store.PageStore.getPageSize:()I
iconst_2
ishr
ireturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/h2/store/PageFreeList;
boolean isUsed(int);
descriptor: (I)Z
flags: (0x0000)
Code:
stack=3, locals=2, args_size=2
start local 0 start local 1 0: aload 0
getfield org.h2.store.PageFreeList.used:Ljava/util/BitSet;
iload 1
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
isub
invokevirtual java.util.BitSet.get:(I)Z
ireturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/h2/store/PageFreeList;
0 1 1 pageId I
MethodParameters:
Name Flags
pageId
public void moveTo(org.h2.engine.Session, int);
descriptor: (Lorg/h2/engine/Session;I)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=3, args_size=3
start local 0 start local 1 start local 2 0: aload 0
getfield org.h2.store.PageFreeList.store:Lorg/h2/store/PageStore;
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
iconst_0
invokevirtual org.h2.store.PageStore.free:(IZ)V
1: return
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Lorg/h2/store/PageFreeList;
0 2 1 session Lorg/h2/engine/Session;
0 2 2 newPos I
MethodParameters:
Name Flags
session
newPos
public java.lang.String toString();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=1, args_size=1
start local 0 0: new java.lang.StringBuilder
dup
ldc "page ["
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
aload 0
invokevirtual org.h2.store.PageFreeList.getPos:()I
invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
ldc "] freeList"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
aload 0
getfield org.h2.store.PageFreeList.full:Z
ifeq 1
ldc "full"
goto 2
StackMap locals:
StackMap stack: java.lang.StringBuilder
1: ldc ""
StackMap locals: org.h2.store.PageFreeList
StackMap stack: java.lang.StringBuilder java.lang.String
2: invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Lorg/h2/store/PageFreeList;
public boolean canRemove();
descriptor: ()Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: iconst_1
ireturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/h2/store/PageFreeList;
public boolean canMove();
descriptor: ()Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: iconst_0
ireturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/h2/store/PageFreeList;
}
SourceFile: "PageFreeList.java"