Buffer的核心作用是用来缓冲，字面意思缓慢冲击。 比如你每秒要写100次硬盘，对系统冲击很大，浪费了大量时间忙着写处理，用个buffer缓冲区暂存起来，变成每秒要写10次硬盘，对系统 …

Here, the buffer array is used to store the data read by read (2) until it's written; then the buffer is re-used. There are more complicated buffer schemes used, for example a circular buffer, …

Buffers are associated with a specific block device, and cover caching of filesystem metadata as well as tracking in-flight pages. The cache only contains parked file data. That is, the buffers …

The buffer in this case is a sub-string, starting at position 6 with length 5, and it doesn't take extra storage space - it references a slice of the string. This isn't very useful for short strings like …

Jul 10, 2018 · One remark based on the code: your data is in longitude/latitude. If you want an accurate buffer in miles (meters), you will probably need to convert your data to another …

May 26, 2015 · A buffer is a chunk of memory (usually an array) that's used to copy a small chunk of data from a huge data source, so you can process it at whatever pace your computer or …

Aug 10, 2010 · A buffer is generally a portion of memory that contains data that has not yet been fully committed to its intended device. In the case of buffered I/O, generally there is a fast …

Jul 29, 2014 · What about using static char * buffer = new char[N]; , never deleting the buffer and reusing it on each call. I understand that heap allocation should be used when (1) dealing with …

Create the buffer Write data to the buffer (binary junk, not zero-terminated) Get the written data as a char array (together with its length) Free the buffer What is the name of the class/function …

I have a buffer with some binary data: var b = new Buffer ([0x00, 0x01, 0x02]); and I want to append 0x03. How can I append more binary data? I'm searching in the documentation but for …