ExpandableBuffer
ExpandableBuffer wraps around a bytearray object that can be extended in both direction, front & back The valid bytes in the Buffer is between Head & Tail. The current implementation of expandableBuffer is not threadsafe, and should not be used in multiple thread environment.
Constructors
| Constructor | Description |
new(size, posAtZero)
Signature: (size:int * posAtZero:int) -> ExpandableBuffer
|
Create an expandable buffer of a certain size, and a position at zero. The buffer can be extended both at head and at tail |
new(size)
Signature: size:int -> ExpandableBuffer
|
Create an expandable buffer of a certain size, with a default position at zero |
new()
Signature: unit -> ExpandableBuffer
|
Create an expandable buffer of default size |
Instance members
| Instance member | Description |
ExtendHead(len)
Signature: len:int -> unit
|
Extend the buffer at head by len byte, move the Head pointer. |
ExtendTail(len)
Signature: len:int -> unit
|
Extend the buffer at tail by len byte, move the Tail pointer. |
GetBufferAfterTail()
Signature: unit -> byte [] * int * int
|
Get Buffer at tail |
GetBufferTuple()
Signature: unit -> byte [] * int * int
|
Get Buffer with position and length Return: buf: byte[] start: start position len: length of the valid buffer |
GetTruncatedBuffer()
Signature: unit -> byte []
|
Return a buffer (as a new Object) |
Head()
Signature: unit -> int
|
Head position |
Head()
Signature: unit -> unit
|
Head position |
Length
Signature: int
|
Length of the buffer |
ReadStream(readStream, blocklen)
Signature: (readStream:Stream * blocklen:int) -> unit
|
Read All stream into an expandable buffer |
Tail()
Signature: unit -> int
|
Tail position |
Tail()
Signature: unit -> unit
|
Tail position |
TryExtendHead(len)
Signature: len:int -> unit
|
Extend the buffer at head by len byte |
TryExtendTail(len)
Signature: len:int -> unit
|
Try extend the buffer at tail by len byte do not move the tail pointer. |
Static members
| Static member | Description |
DefaultReadStreamBlockLength()
Signature: unit -> int
|
If using Expandable buffer to read stream, the chunk size used to readin stream data |
DefaultReadStreamBlockLength()
Signature: unit -> unit
|
If using Expandable buffer to read stream, the chunk size used to readin stream data |
ReadStreamToBuffer(readStream)
Signature: readStream:Stream -> byte [] * int * int
|
Read stream into an expandable buffer |
