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Kotlin Multiplatform bytebuffer/byte[] wrapper

License: Apache License 2.0

Kotlin 99.56% AIDL 0.16% JavaScript 0.28%

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litclimbing gpicron simwagner corewillsoft serjsysoev

buffer's Issues

How can I convert a ByteBuffer to a FloatBuffer (as java.nio.ByteBuffer#asFloatBuffer factory method)?

Hi,
I want to reuse a Java implementation which converts a ByteBuffer to a FloatBuffer. How can I achieve this?
Thanks.

Arm

Please add linux arm64 support

[BUG] In a kotlin/js project, using PlatformBuffer.wrap and then parsing the data, the results are not as expected

Here is my test code

import com.d10ng.common.base.toByteArrayFromHex
import com.d10ng.common.base.toHexString
import com.d10ng.common.base.toUnsignedInt
import com.d10ng.common.base.toUnsignedLong
import com.ditchoom.buffer.PlatformBuffer
import com.ditchoom.buffer.wrap
import kotlin.test.Test

class Test {

    @Test
    fun test1() {
        val str = "0001A960DBD8A500006500006400010A003132333435363738"
        val hex = str.toByteArrayFromHex()
        val buf = PlatformBuffer.wrap(hex)
        val messageId = buf.readByteArray(2).toUnsignedInt()
        val cmd = buf.readByte()
        println("messageId: $messageId, cmd: $cmd")
        val data = buf.readByteArray(buf.remaining())
        println("data=${data.toHexString()}")
        val buf1 = PlatformBuffer.wrap(data)
        println("buf1.readByteArray(4)=${buf1.readByteArray(4).toHexString()}")
        //val timestamp = buf1.readByteArray(4).toUnsignedLong() * 1000L
        //println("timestamp: $timestamp")
    }
}

The output log is as follows:

messageId: 1, cmd: -87
data=60DBD8A500006500006400010A003132333435363738
buf1.readByteArray(4)=0001A960

But the expected buf1.readByteArray(4) output is 60DBD8A5

VERSIONS

kotlin 1.9.23
com.ditchoom:buffer 1.3.38

Need absolute access functions

The ByteBuffer functions that allow fetching a data item from a specific position without moving the pointers are needed to make this a useful replacement for ByteBuffer, e.g. ByteBuffer.get(index) returns the byte at index without moving the position.

How can I read a Unsigned Int of 24 bits,three octets?

I'm using this library to read bluetooth values, in some standards exist this type of value.
uint24. There are ways to read this, with this library.

Inconsistent behaviour ios/jvm, write() doesn't update position on iOS

Using version 1.3.9

Having following test

@Test
fun test() {
    val text = "Hello world!"
    val input = PlatformBuffer.wrap(text.encodeToByteArray())
    val output = PlatformBuffer.allocate(text.length)
    output.write(input)
    assertThat(input.position()).isEqualTo(text.length) //<- ios fails
    assertThat(output.position()).isEqualTo(text.length)
    output.position(0)
    assertThat(output.readString(text.length)).isEqualTo(text)
}

JVM: OK
iOS: fails

com.willowtreeapps.opentest4k.AssertionFailedError: expected:<[12]> but was:<[0]>
Expected :[12]
Actual   :[0]

ditchoom / buffer Goto Github PK

buffer's People

Contributors

Stargazers

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Forkers

buffer's Issues

How can I convert a ByteBuffer to a FloatBuffer (as java.nio.ByteBuffer#asFloatBuffer factory method)?

Arm

[BUG] In a kotlin/js project, using PlatformBuffer.wrap and then parsing the data, the results are not as expected

VERSIONS

Need absolute access functions

How can I read a Unsigned Int of 24 bits,three octets?

Inconsistent behaviour ios/jvm, write() doesn't update position on iOS

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