Package com.kenai.jffi
Class InvocationBuffer
java.lang.Object
com.kenai.jffi.InvocationBuffer
- Direct Known Subclasses:
HeapInvocationBuffer
A parameter buffer used when invoking a function
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionabstract void
putAddress
(long value) Adds a native address parameter.abstract void
putArray
(byte[] value, int offset, int length, int flags) Adds a java byte array as a pointer parameter.abstract void
putArray
(double[] value, int offset, int length, int flags) Adds a java double array as a pointer parameter.abstract void
putArray
(float[] value, int offset, int length, int flags) Adds a java float array as a pointer parameter.abstract void
putArray
(int[] value, int offset, int length, int flags) Adds a java int array as a pointer parameter.abstract void
putArray
(long[] value, int offset, int length, int flags) Adds a java long array as a pointer parameter.abstract void
putArray
(short[] value, int offset, int length, int flags) Adds a java short array as a pointer parameter.abstract void
putByte
(int value) Adds an 8 bit integer parameter.abstract void
putDirectBuffer
(Buffer buffer, int offset, int length) Adds a java direct buffer as a pointer parameter.abstract void
putDouble
(double value) Adds a 64 bit floating point parameter.abstract void
putFloat
(float value) Adds a 32 bit floating point parameter.abstract void
putInt
(int value) Adds a 32 bit integer parameter.abstract void
putLong
(long value) Adds a 64 bit integer parameter.abstract void
putShort
(int value) Adds a 16 bit integer parameter.abstract void
putStruct
(byte[] struct, int offset) Adds a struct or union as a parameter.abstract void
putStruct
(long struct) Adds a struct or union as a parameter.
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Constructor Details
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InvocationBuffer
public InvocationBuffer()
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Method Details
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putByte
public abstract void putByte(int value) Adds an 8 bit integer parameter.- Parameters:
value
- An 8 bit integer value to use as the parameter.
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putShort
public abstract void putShort(int value) Adds a 16 bit integer parameter.- Parameters:
value
- A 16 bit integer value to use as the parameter.
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putInt
public abstract void putInt(int value) Adds a 32 bit integer parameter.- Parameters:
value
- A 32 bit integer value to use as the parameter.
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putLong
public abstract void putLong(long value) Adds a 64 bit integer parameter.- Parameters:
value
- A 64 bit integer value to use as the parameter.
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putFloat
public abstract void putFloat(float value) Adds a 32 bit floating point parameter.- Parameters:
value
- A 32 bit floating point value to use as the parameter.
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putDouble
public abstract void putDouble(double value) Adds a 64 bit floating point parameter.- Parameters:
value
- A 64 bit floating point value to use as the parameter.
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putAddress
public abstract void putAddress(long value) Adds a native address parameter.- Parameters:
value
- A native address value to use as the parameter.
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putArray
public abstract void putArray(byte[] value, int offset, int length, int flags) Adds a java byte array as a pointer parameter.- Parameters:
value
- The java array to use as the pointer parameter.offset
- The offset from the start of the array.length
- The length of the array to use.flags
- The flags to use (IN, OUT)
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putArray
public abstract void putArray(short[] value, int offset, int length, int flags) Adds a java short array as a pointer parameter.- Parameters:
value
- The java array to use as the pointer parameter.offset
- The offset from the start of the array.length
- The length of the array to use.flags
- The flags to use (IN, OUT)
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putArray
public abstract void putArray(int[] value, int offset, int length, int flags) Adds a java int array as a pointer parameter.- Parameters:
value
- The java array to use as the pointer parameter.offset
- The offset from the start of the array.length
- The length of the array to use.flags
- The flags to use (IN, OUT)
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putArray
public abstract void putArray(long[] value, int offset, int length, int flags) Adds a java long array as a pointer parameter.- Parameters:
value
- The java array to use as the pointer parameter.offset
- The offset from the start of the array.length
- The length of the array to use.flags
- The flags to use (IN, OUT)
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putArray
public abstract void putArray(float[] value, int offset, int length, int flags) Adds a java float array as a pointer parameter.- Parameters:
value
- The java array to use as the pointer parameter.offset
- The offset from the start of the array.length
- The length of the array to use.flags
- The flags to use (IN, OUT)
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putArray
public abstract void putArray(double[] value, int offset, int length, int flags) Adds a java double array as a pointer parameter.- Parameters:
value
- The java array to use as the pointer parameter.offset
- The offset from the start of the array.length
- The length of the array to use.flags
- The flags to use (IN, OUT)
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putDirectBuffer
Adds a java direct buffer as a pointer parameter.- Parameters:
buffer
- The buffer to use as a pointer argument.offset
- An offset to add to the buffer native address.length
- The length of the buffer to use.
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putStruct
public abstract void putStruct(byte[] struct, int offset) Adds a struct or union as a parameter. This passes the struct or union by value, not by reference.- Parameters:
struct
- A java byte array with the struct contents.offset
- The offset from the start of the array.
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putStruct
public abstract void putStruct(long struct) Adds a struct or union as a parameter. This passes the struct or union by value, not by reference.- Parameters:
struct
- The native address to use as the struct contents.
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