gain in program performance. A direct byte buffer may also be created by mapping a region of a file directly into memory. An implementation of the Java platform may optionally support the creation of direct byte buffers from native code via JNI. If an instance of one of these kinds of buff...
(1)Buffer中定义的变量含义 /*** UNSET_MARK means the mark has not been set.*/staticfinalintUNSET_MARK = -1;/*** The capacity of this buffer, which never changes.*/finalintcapacity;/*** limit - 1 is the last element that can be read or written. * Limit must be no less than ze...
This means that Buffer will create an output coverage in the same precision as the input coverage. On both single-precision and double-precision coverages, Buffer calculates a minimum tolerance based on the mathematical precision of the coverage (based on the width of the BND and the number ...
In Java, an IOException is an exception that is thrown when an input or output operation fails or is interrupted. It is a checked exception, which means that it must be explicitly handled in the code or declared in the method signature using thethrowskeyword. An IOException can occur in var...
Another thing to consider is what each chunk represents in percentage terms. Continuing with the example, each chunk per instance represent 1.61%, which means that we can increase or decrease the complete buffer pool size in multiples of this percentage. ...
Get a ReadBuffer object to read data from this buffer. This method is not guaranteed to return a snapshot of this buffer's data, nor is it guaranteed to return a live view of this buffer, which means that subsequent changes to this WriteBuffer may or may not affect the contents and /...
and that transmission is stored in a too-small stack buffer. Your hacker could choose a "push" function and store new items on the top of the stack. Or the hacker could choose a "pop" function and remove the top item and replace it. That means the hacker has officiallyinserted malicious...
java.io.IOException- if an IOException occurs reading from the passed stream intlength() Determine the length of the data that is in the buffer. This is the actual number of bytes of data that have been written to the buffer, not the capacity of the buffer. ...
当然没有这个必要重复造轮子, Thrift, Protocol Buffers or Avro, provide efficient, cross-language serialization of data using a schema, and code generation for the Java folks. So you have some data that you want to store in a file or send over the network. You may find yourself going throug...
In write mode the limit of aBufferis the limit of how much data you can write into the buffer. In write mode the limit is equal to the capacity of theBuffer. When flipping theBufferinto read mode, limit means the limit of how much data you can read from the data. Therefore, when ...