bytebuffer

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Fastest and most efficient conversion of a byte array to a 29 bit integer in Java

Since 29 bit integers are popular in AMF, I would like to incorporate the fastest / best routine known. Two routines currently exist in our library and can be tested live on ideone[详细]

2023-01-15 13:49 分类：问答
Deep copy duplicate() of Java's ByteBuffer

java.nio.ByteBuf开发者_StackOverflowfer#duplicate() returns a new byte buffer that shares the old buffer\'s content. Changes to the old buffer\'s content will be visible in the new buffer, and vice ve[详细]

2023-01-09 06:05 分类：问答
Infinite ByteBuffer in Java

I\'m working on a program where I\'m compressing a large amount on information and storing it in bytes in a buffer. 开发者_如何转开发I can\'t use ByteBuffer because I don\'t know the finall size.[详细]

2023-01-08 20:50 分类：问答
Using Java's ByteBuffer to read millions of messages

Here\'s my problem: one big gzipped file; millions of messages. Each message consists of: ***************** *************** ******************[详细]

2023-01-08 13:07 分类：问答
How to fill byte array with junk?

I am using this: byte[] buffer = new byte[10240]; As I understand this initi开发者_如何转开发alize the buffer array of 10kb filled with 0s.[详细]

2023-01-02 06:11 分类：问答
Does CGDataProviderCopyData() actually copy the bytes? Or just the pointer?

I\'m running that method in quick succession as fast as I can, and the fa开发者_JAVA技巧ster the better, so obviously if CGDataProviderCopyData() is actually copying the data byte-for-byte, then I thi[详细]

2022-12-28 13:32 分类：问答
Which JVMs do not support direct java.nio.ByteBuffer?

The release notes for Java NIO (in Java 1.4+) state that support for direct ByteBuffers is an optional feature.I am curious which JVM vendors/flavors do not support it?Should a JNI library always code[详细]

2022-12-26 05:36 分类：问答
Java: Using type punning on primitive arrays?

I need to be able to convert byte arrays to/from other primitive type arrays, but instead of casting, I need type punning. Correct term for raw copy without casting?[详细]

2022-12-19 21:26 分类：问答
Growing ByteBuffer

Has anyone has ever seen an implementation of java.nio.ByteBuffer that will grow dynamically if a putX() call overruns the capacity?[详细]

2022-12-11 22:03 分类：问答
JNA ByteBuffer statvfs

I am trying to get the free space on the / folder using statvfs call from java, I have check the size of statvfs struct from c it shows 44 bytes,开发者_高级运维 I have allocated a byte buffer using j[详细]

2022-12-11 18:31 分类：问答