class SlowBuffer
package js.node.buffer
extends Buffer › Uint8Array
@:jsRequire("buffer","SlowBuffer")Returns an un-pooled Buffer.
In order to avoid the garbage collection overhead of creating many individually allocated Buffer instances, by default allocations under 4KB are sliced from a single larger allocated object. This approach improves both performance and memory usage since v8 does not need to track and cleanup as many Persistent objects.
In the case where a developer may need to retain a small chunk of memory from a pool
for an indeterminate amount of time, it may be appropriate to create an un-pooled Buffer instance
using SlowBuffer then copy out the relevant bits.
Use of SlowBuffer should be used only as a last resort after a developer has observed
undue memory retention in their applications.
Constructor
new(size:Int)
Allocates a new SlowBuffer of size bytes.
The size must be less than or equal to the value of Buffer.kMaxLength. Otherwise, a RangeError is thrown.
A zero-length Buffer will be created if size <= 0.
The underlying memory for SlowBuffer instances is not initialized. The contents of a newly created SlowBuffer
are unknown and could contain sensitive data. Use buf.fill(0) to initialize a SlowBuffer to zeroes.
Inherited Variables
Defined by Uint8Array
finalbuffer:ArrayBuffer
Returns the ArrayBuffer referenced by the Uint8Array Fixed at construction time and thus read only.
finalbyteLength:Int
Returns the length (in bytes) of the Uint8Array from the start of its ArrayBuffer. Fixed at construction time and thus read only.
finalbyteOffset:Int
Returns the offset (in bytes) of the Uint8Array from the start of its ArrayBuffer. Fixed at construction time and thus read only.
finallength:Int
Returns the number of elements hold in the Uint8Array. Fixed at construction time and thus read only.
Inherited Methods
Defined by Buffer
compare(target:Uint8Array, ?targetStart:Int, ?targetEnd:Int, ?sourceStart:Int, ?sourceEnd:Int):Int
compare(target:Uint8Array):Int
Compares buf with target and returns a number indicating whether buf comes before, after,
or is the same as target in sort order. Comparison is based on the actual sequence of bytes in each Buffer.
See also:
copy(target:Uint8Array, ?targetStart:Int, ?sourceStart:Int, ?sourceEnd:Int):Void
copy(target:Uint8Array):Void
Copies data from a region of buf to a region in target even if the target memory region overlaps with buf.
See also:
entries():Iterator<KeyValue<Int, Int>>
Creates and returns an iterator of [index, byte] pairs from the contents of buf.
See also:
equals(otherBuffer:Uint8Array):Bool
fill(value:String, ?offset:Int, ?end:Int, ?encoding:String):Buffer
fill(value:Uint8Array, ?offset:Int, ?end:Int):Buffer
fill(value:Int, ?offset:Int, ?end:Int):Buffer
Fills buf with the specified value. If the offset and end are not given, the entire buf will be filled:
See also:
inlinehxToBytes():Bytes
Create haxe.io.Bytes object that uses the same underlying data storage as this buffer.
Any modifications done using the returned object will be reflected in the this buffer.
includes(value:String, ?byteOffset:Int, ?encoding:String):Bool
includes(value:Uint8Array, ?byteOffset:Int):Bool
includes(value:Int, ?byteOffset:Int):Bool
Equivalent to buf.indexOf() !== -1.
See also:
indexOf(value:String, ?byteOffset:Int, ?encoding:String):Int
indexOf(value:Uint8Array, ?byteOffset:Int):Int
indexOf(value:Int, ?byteOffset:Int):Int
lastIndexOf(value:String, ?byteOffset:Int, ?encoding:String):Int
lastIndexOf(value:Uint8Array, ?byteOffset:Int):Int
lastIndexOf(value:Int, ?byteOffset:Int):Int
Identical to buf.indexOf(), except the last occurrence of value is found
rather than the first occurrence.
See also:
readDoubleBE(?offset:Int):Float
Reads a 64-bit double from buf at the specified offset with specified endian format
(readDoubleBE() returns big endian, readDoubleLE() returns little endian).
See also:
readDoubleLE(?offset:Int):Float
Reads a 64-bit double from buf at the specified offset with specified endian format
(readDoubleBE() returns big endian, readDoubleLE() returns little endian).
See also:
readFloatBE(?offset:Int):Float
Reads a 32-bit float from buf at the specified offset with specified endian format
(readFloatBE() returns big endian, readFloatLE() returns little endian).
See also:
readFloatLE(?offset:Int):Float
Reads a 32-bit float from buf at the specified offset with specified endian format
(readFloatBE() returns big endian, readFloatLE() returns little endian).
See also:
readInt16BE(?offset:Int):Int
Reads a signed 16-bit integer from buf at the specified offset with the specified endian format
(readInt16BE() returns big endian, readInt16LE() returns little endian).
See also:
readInt16LE(?offset:Int):Int
Reads a signed 16-bit integer from buf at the specified offset with the specified endian format
(readInt16BE() returns big endian, readInt16LE() returns little endian).
See also:
readInt32BE(?offset:Int):Int
Reads a signed 32-bit integer from buf at the specified offset with the specified endian format
(readInt32BE() returns big endian, readInt32LE() returns little endian).
See also:
readInt32LE(?offset:Int):Int
Reads a signed 32-bit integer from buf at the specified offset with the specified endian format
(readInt32BE() returns big endian, readInt32LE() returns little endian).
See also:
readInt8(?offset:Int):Int
Reads a signed 8-bit integer from buf at the specified offset.
https://nodejs.org/api/buffer.html#buffer_buf_readint8_offset
readIntBE(offset:Int, byteLength:Int):Int
Reads byteLength number of bytes from buf at the specified offset and interprets the result
as a two's complement signed value. Supports up to 48 bits of accuracy.
See also:
readIntLE(offset:Int, byteLength:Int):Int
Reads byteLength number of bytes from buf at the specified offset and interprets the result
as a two's complement signed value. Supports up to 48 bits of accuracy.
See also:
readUInt16BE(?offset:Int):Int
Reads an unsigned 16-bit integer from buf at the specified offset with specified endian format
readUInt16BE() returns big endian, readUInt16LE() returns little endian).
See also:
readUInt16LE(?offset:Int):Int
Reads an unsigned 16-bit integer from buf at the specified offset with specified endian format
(readUInt16BE() returns big endian, readUInt16LE() returns little endian).
See also:
readUInt32BE(?offset:Int):Int
Reads an unsigned 32-bit integer from buf at the specified offset with specified endian format
(readUInt32BE() returns big endian, readUInt32LE() returns little endian).
See also:
readUInt32LE(?offset:Int):Int
Reads an unsigned 32-bit integer from buf at the specified offset with specified endian format
(readUInt32BE() returns big endian, readUInt32LE() returns little endian).
See also:
readUInt8(?offset:Int):Int
Reads an unsigned 8-bit integer from buf at the specified offset.
See also:
slice(?start:Int, ?end:Int):Buffer
Returns a new Buffer that references the same memory as the original,
but offset and cropped by the start and end indices.
See also:
subarray(?start:Int, ?end:Int):Buffer
Returns a new Buffer that references the same memory as the original,
but offset and cropped by the start and end indices.
See also:
swap16():Buffer
Interprets buf as an array of unsigned 16-bit integers and swaps the
byte order in-place. Throws ERR_INVALID_BUFFER_SIZE if buf.length
is not a multiple of 2.
See also:
swap32():Buffer
Interprets buf as an array of unsigned 32-bit integers and swaps the
byte order in-place. Throws ERR_INVALID_BUFFER_SIZE if buf.length
is not a multiple of 4.
See also:
swap64():Buffer
Interprets buf as an array of 64-bit numbers and swaps byte order in-place.
Throws ERR_INVALID_BUFFER_SIZE if buf.length is not a multiple of 8.
See also:
toJSON():Dynamic
Returns a JSON representation of buf. JSON.stringify() implicitly calls
this function when stringifying a Buffer instance.
See also:
toString():String
toString(?encoding:String, ?start:Int, ?end:Int):String
Decodes buf to a string according to the specified character encoding in encoding.
start and end may be passed to decode only a subset of buf.
See also:
values():Iterator<Int>
Creates and returns an iterator for buf values (bytes). This function is called automatically
when a Buffer is used in a for..of statement.
See also:
write(string:String, ?offset:Int, ?length:Int, ?encoding:String):Int
Writes string to buf at offset according to the character encoding in encoding.
The length parameter is the number of bytes to write.
If buf did not contain enough space to fit the entire string, only part of string will be written.
However, partially encoded characters will not be written.
See also:
writeDoubleBE(value:Float, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeDoubleBE() writes big endian, writeDoubleLE() writes little endian).
value should be a valid 64-bit double. Behavior is undefined when value is anything other than a 64-bit double.
See also:
writeDoubleLE(value:Float, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeDoubleBE() writes big endian, writeDoubleLE() writes little endian).
value should be a valid 64-bit double. Behavior is undefined when value is anything other than a 64-bit double.
See also:
writeFloatBE(value:Float, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeFloatBE() writes big endian, writeFloatLE() writes little endian).
value should be a valid 32-bit float. Behavior is undefined when value is anything other than a 32-bit float.
See also:
writeFloatLE(value:Float, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeFloatBE() writes big endian, writeFloatLE() writes little endian).
value should be a valid 32-bit float. Behavior is undefined when value is anything other than a 32-bit float.
See also:
writeInt16BE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeInt16BE() writes big endian, writeInt16LE() writes little endian).
value should be a valid signed 16-bit integer.
Behavior is undefined when value is anything other than a signed 16-bit integer.
See also:
writeInt16LE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeInt16BE() writes big endian, writeInt16LE() writes little endian).
value should be a valid signed 16-bit integer.
Behavior is undefined when value is anything other than a signed 16-bit integer.
See also:
writeInt32BE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeInt32BE() writes big endian, writeInt32LE() writes little endian).
value should be a valid signed 32-bit integer.
Behavior is undefined when value is anything other than a signed 32-bit integer.
See also:
writeInt32LE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeInt32BE() writes big endian, writeInt32LE() writes little endian).
value should be a valid signed 32-bit integer.
Behavior is undefined when value is anything other than a signed 32-bit integer.
See also:
writeInt8(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset. value should be a valid signed 8-bit integer.
Behavior is undefined when value is anything other than a signed 8-bit integer.
See also:
writeIntBE(value:Int, offset:Int, byteLength:Int):Int
Writes byteLength bytes of value to buf at the specified offset.
Supports up to 48 bits of accuracy. Behavior is undefined when value is anything other than a signed integer.
See also:
writeIntLE(value:Int, offset:Int, byteLength:Int):Int
Writes byteLength bytes of value to buf at the specified offset.
Supports up to 48 bits of accuracy. Behavior is undefined when value is anything other than a signed integer.
See also:
writeUInt16BE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeUInt16BE() writes big endian, writeUInt16LE() writes little endian).
value should be a valid unsigned 16-bit integer.
Behavior is undefined when value is anything other than an unsigned 16-bit integer.
See also:
writeUInt16LE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeUInt16BE() writes big endian, writeUInt16LE() writes little endian).
value should be a valid unsigned 16-bit integer.
Behavior is undefined when value is anything other than an unsigned 16-bit integer.
See also:
writeUInt32BE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeUInt32BE() writes big endian, writeUInt32LE() writes little endian).
value should be a valid unsigned 32-bit integer.
Behavior is undefined when value is anything other than an unsigned 32-bit integer.
See also:
writeUInt32LE(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset with specified endian format
(writeUInt32BE() writes big endian, writeUInt32LE() writes little endian).
value should be a valid unsigned 32-bit integer.
Behavior is undefined when value is anything other than an unsigned 32-bit integer.
See also:
writeUInt8(value:Int, ?offset:Int):Void
Writes value to buf at the specified offset. value should be a valid unsigned 8-bit integer.
Behavior is undefined when value is anything other than an unsigned 8-bit integer.
See also:
Defined by Uint8Array
copyWithin(target:Int, start:Int, ?end:Int):Uint8Array
Copies a sequence of array elements within the array. See also Array.prototype.copyWithin().
every(callback:(currentValue:Int, index:Int, array:Uint8Array) ‑> Bool, ?thisArg:Any):Bool
every(callback:(currentValue:Int) ‑> Bool, ?thisArg:Any):Bool
every(callback:(currentValue:Int, index:Int) ‑> Bool, ?thisArg:Any):Bool
Tests whether all elements in the array pass the test provided by a function. See also Array.prototype.every().
filter(callback:(element:Int, index:Int, array:Uint8Array) ‑> Bool, ?thisArg:Any):Uint8Array
filter(callback:(element:Int) ‑> Bool, ?thisArg:Any):Uint8Array
filter(callback:(element:Int, index:Int) ‑> Bool, ?thisArg:Any):Uint8Array
Creates a new array with all of the elements of this array for which the provided filtering function returns true. See also Array.prototype.filter().
find(callback:(element:Int, index:Int, array:Uint8Array) ‑> Bool, ?thisArg:Any):Null<Int>
find(callback:(element:Int) ‑> Bool, ?thisArg:Any):Null<Int>
find(callback:(element:Int, index:Int) ‑> Bool, ?thisArg:Any):Null<Int>
Returns the found value in the array, if an element in the array satisfies the provided testing function or undefined if not found. See also Array.prototype.find().
findIndex(callback:(element:Int, index:Int, array:Uint8Array) ‑> Bool, ?thisArg:Any):Int
findIndex(callback:(element:Int) ‑> Bool, ?thisArg:Any):Int
findIndex(callback:(element:Int, index:Int) ‑> Bool, ?thisArg:Any):Int
Returns the found index in the array, if an element in the array satisfies the provided testing function or -1 if not found. See also Array.prototype.findIndex().
forEach(callback:(element:Int, index:Int, array:Uint8Array) ‑> Void, ?thisArg:Any):Void
forEach(callback:(element:Int) ‑> Void, ?thisArg:Any):Void
forEach(callback:(element:Int, index:Int) ‑> Void, ?thisArg:Any):Void
Calls a function for each element in the array. See also Array.prototype.forEach().
join(?separator:String):String
Joins all elements of an array into a string. See also Array.prototype.join().
map(callback:(element:Int, index:Int, array:Uint8Array) ‑> Int, ?thisArg:Any):Uint8Array
map(callback:(element:Int) ‑> Int, ?thisArg:Any):Uint8Array
map(callback:(element:Int, index:Int) ‑> Int, ?thisArg:Any):Uint8Array
Creates a new array with the results of calling a provided function on every element in this array. See also Array.prototype.map().
reduce<T>(callback:(previousValue:T, currentValue:Int, index:Int, array:Uint8Array) ‑> T, initialValue:T):T
reduce<T>(callback:(previousValue:T, currentValue:Int) ‑> T, initialValue:T):T
reduce<T>(callback:(previousValue:T, currentValue:Int, index:Int) ‑> T, initialValue:T):T
reduce(callbackfn:(previousValue:Int, currentValue:Int) ‑> Int):Int
reduce(callbackfn:(previousValue:Int, currentValue:Int, index:Int) ‑> Int):Int
reduce(callbackfn:(previousValue:Int, currentValue:Int, index:Int, array:Uint8Array) ‑> Int):Int
Apply a function against an accumulator and each value of the array (from left-to-right) as to reduce it to a single value. See also Array.prototype.reduce().
reduceRight<T>(callback:(previousValue:T, currentValue:Int, index:Int, array:Uint8Array) ‑> T, initialValue:T):T
reduceRight<T>(callback:(previousValue:T, currentValue:Int) ‑> T, initialValue:T):T
reduceRight<T>(callback:(previousValue:T, currentValue:Int, index:Int) ‑> T, initialValue:T):T
reduceRight(callbackfn:(previousValue:Int, currentValue:Int) ‑> Int):Int
reduceRight(callbackfn:(previousValue:Int, currentValue:Int, index:Int) ‑> Int):Int
reduceRight(callbackfn:(previousValue:Int, currentValue:Int, index:Int, array:Uint8Array) ‑> Int):Int
Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value. See also Array.prototype.reduceRight().
reverse():Uint8Array
Reverses the order of the elements of an array — the first becomes the last, and the last becomes the first. See also Array.prototype.reverse().
set(array:Array<Int>, ?offset:Int):Void
set(array:Int8Array, ?offset:Int):Void
set(array:Uint8Array, ?offset:Int):Void
set(array:Uint8ClampedArray, ?offset:Int):Void
set(array:Int16Array, ?offset:Int):Void
set(array:Uint16Array, ?offset:Int):Void
set(array:Int32Array, ?offset:Int):Void
set(array:Uint32Array, ?offset:Int):Void
set(array:Float32Array, ?offset:Int):Void
set(array:Float64Array, ?offset:Int):Void
Stores multiple values in the typed array, reading input values from a specified array.
some(callback:(element:Int, index:Int, array:Uint8Array) ‑> Bool, ?thisArg:Any):Bool
some(callback:(element:Int) ‑> Bool, ?thisArg:Any):Bool
some(callback:(element:Int, index:Int) ‑> Bool, ?thisArg:Any):Bool
Returns true if at least one element in this array satisfies the provided testing function. See also Array.prototype.some().
sort(?compareFn:(x:Int, y:Int) ‑> Int):Uint8Array
Sorts the elements of an array in place and returns the array. See also Array.prototype.sort().
toLocaleString(?locales:String, ?options:Null<NumberFormatOptions>):String
Returns a string representing the array and its elements. See also Array.prototype.toString().