FileChannel.Map(FileChannel+MapMode, Int64, Int64) Method
Definition
Important
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Maps a region of this channel's file directly into memory.
[Android.Runtime.Register("map", "(Ljava/nio/channels/FileChannel$MapMode;JJ)Ljava/nio/MappedByteBuffer;", "GetMap_Ljava_nio_channels_FileChannel_MapMode_JJHandler")]
public abstract Java.Nio.MappedByteBuffer? Map (Java.Nio.Channels.FileChannel.MapMode? mode, long position, long size);[<Android.Runtime.Register("map", "(Ljava/nio/channels/FileChannel$MapMode;JJ)Ljava/nio/MappedByteBuffer;", "GetMap_Ljava_nio_channels_FileChannel_MapMode_JJHandler")>]
abstract member Map : Java.Nio.Channels.FileChannel.MapMode * int64 * int64 -> Java.Nio.MappedByteBufferParameters
- mode
- FileChannel.MapMode
One of the constants MapMode#READ_ONLY READ_ONLY, MapMode#READ_WRITE READ_WRITE, or MapMode#PRIVATE
PRIVATE defined in the MapMode class, according to
whether the file is to be mapped read-only, read/write, or
privately (copy-on-write), respectively
- position
- Int64
The position within the file at which the mapped region is to start; must be non-negative
- size
- Int64
The size of the region to be mapped; must be non-negative and
no greater than java.lang.Integer#MAX_VALUE
Returns
The mapped byte buffer
- Attributes
Exceptions
if the FileChannel is not opened for reading but the given mode is "READ_ONLY".
if the FileChannel is not opened for writing but the given mode is not "READ_ONLY".
if the given parameters of position and size are not correct.
Both must be non negative. size also must not be
bigger than max integer.
if any I/O error occurs.
Remarks
Java documentation for java.nio.channels.FileChannel.map(java.nio.channels.MapMode, long, long).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.