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package manta.runtime;
import java.nio.*;
// these are wrappers around byte[]'s
#include "temp.h"
public final class BUFFERImpl extends java.nio. BUFFER
{
private int array_offset;
ELT [] backing_buffer;
private boolean ro;
BUFFERImpl(int cap, int off, int lim)
{
this.backing_buffer = new ELT[cap];
this.cap = cap;
this.pos = off;
this.limit = lim;
}
BUFFERImpl(ELT[] array, int off, int lim)
{
this.backing_buffer = array;
this.cap = array.length;
this.pos = off;
this.limit = lim;
}
BUFFERImpl(BUFFERImpl copy)
{
backing_buffer = copy.backing_buffer;
ro = copy.ro;
pos = copy.pos;
limit = copy.limit;
}
void inc_pos(int a)
{
pos += a;
}
private static MantaNative ELT[] nio_cast(byte[]copy);
private static MantaNative ELT[] nio_cast(char[]copy);
private static MantaNative ELT[] nio_cast(short[]copy);
private static MantaNative ELT[] nio_cast(long[]copy);
private static MantaNative ELT[] nio_cast(int[]copy);
private static MantaNative ELT[] nio_cast(float[]copy);
private static MantaNative ELT[] nio_cast(double[]copy);
#define CAST_CTOR(ELT,TO_TYPE) \
BUFFERImpl(ELT[] copy) \
{ \
this.backing_buffer = copy != null ? nio_cast(copy) : null; \
} \
\
\
\
private static MantaNative ELT nio_get_ ## TO_TYPE(BUFFERImpl b, int index); \
\
\
private static MantaNative void nio_put_ ## TO_TYPE(BUFFERImpl b, int index, ELT value);\
\
\
public java.nio. TO_TYPE ## Buffer as ## TO_TYPE ## Buffer() \
{ \
return new manta.runtime. TO_TYPE ## BufferImpl(backing_buffer); \
}
CAST_CTOR(byte,Byte)
CAST_CTOR(char,Char)
CAST_CTOR(short,Short)
CAST_CTOR(int,Int)
CAST_CTOR(long,Long)
CAST_CTOR(float,Float)
CAST_CTOR(double,Double)
public boolean isReadOnly()
{
return ro;
}
public java.nio. BUFFER slice()
{
BUFFERImpl A = new BUFFERImpl(this);
A.array_offset = pos;
return A;
}
public java.nio. BUFFER duplicate()
{
return new BUFFERImpl(this);
}
public java.nio. BUFFER asReadOnlyBuffer()
{
BUFFERImpl a = new BUFFERImpl(this);
a.ro = true;
return a;
}
public java.nio. BUFFER compact()
{
return this;
}
public boolean isDirect()
{
return backing_buffer != null;
}
public ELT get()
{
ELT e = backing_buffer[pos];
pos++;
return e;
}
public java.nio. BUFFER put(ELT b)
{
backing_buffer[pos] = b;
pos++;
return this;
}
public ELT get(int index)
{
return backing_buffer[index];
}
public java.nio. BUFFER put(int index, ELT b)
{
backing_buffer[index] = b;
return this;
}
#define NATIVE_GET_PUT(TYPE,SIZE,ELT) \
public ELT get ## TYPE() \
{ \
ELT a = nio_get_ ## TYPE(this, pos); \
inc_pos(SIZE); \
return a; \
} \
public java.nio. BUFFER put ## TYPE(ELT value) \
{ \
nio_put_ ## TYPE(this, pos, value); \
inc_pos(SIZE); \
return this; \
} \
public ELT get ## TYPE(int index) \
{ \
ELT a = nio_get_ ## TYPE(this, index); \
inc_pos(SIZE); \
return a; \
} \
public java.nio. BUFFER put ## TYPE(int index, ELT value) \
{ \
nio_put_ ## TYPE(this, index, value); \
inc_pos(SIZE); \
return this; \
}
#define INLINE_GET_PUT(TYPE,ELT) \
public ELT get ## TYPE() \
{ \
return get(); \
} \
public java.nio. BUFFER put ## TYPE(ELT value) \
{ \
return put(value); \
} \
public ELT get ## TYPE(int index) \
{ \
return get(index); \
} \
public java.nio. BUFFER put ## TYPE(int index, ELT value) \
{ \
return put(index, value); \
}
#if defined(CHAR)
INLINE_GET_PUT(Char, char);
#else
NATIVE_GET_PUT(Char,2,char);
#endif
#if defined(SHORT)
INLINE_GET_PUT(Short, short);
#else
NATIVE_GET_PUT(Short,2,short);
#endif
#if defined(INT)
INLINE_GET_PUT(Int,int);
#else
NATIVE_GET_PUT(Int,4,int);
#endif
#if defined(LONG)
INLINE_GET_PUT(Long,long);
#else
NATIVE_GET_PUT(Long,8,long);
#endif
#if defined(FLOAT)
INLINE_GET_PUT(Float,float);
#else
NATIVE_GET_PUT(Float,4,float);
#endif
#if defined(DOUBLE)
INLINE_GET_PUT(Double,double);
#else
NATIVE_GET_PUT(Double,8,double);
#endif
#if defined(CHAR)
public String toString()
{
if (backing_buffer != null)
{
return new String(backing_buffer, position(), limit());
}
return super.toString();
}
#endif
}
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