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1.76.4 FileDescriptor: accessing

canRead

Answer whether the file is open and we can read from it

canWrite

Answer whether the file is open and we can write from it

ensureReadable

If the file is open, wait until data can be read from it. The wait allows other Processes to run.

ensureWriteable

If the file is open, wait until we can write to it. The wait allows other Processes to run.

exceptionalCondition

Answer whether the file is open and an exceptional condition (such as presence of out of band data) has occurred on it

fd

Return the OS file descriptor of the file

file

Return the name of the file

isOpen

Answer whether the file is still open

isPeerAlive

Present for compatibility with sockets. For files, it answers whether the file is still open

isPipe

Answer whether the file is a pipe or an actual disk file

name

Return the name of the file

waitForException

If the file is open, wait until an exceptional condition (such as presence of out of band data) has occurred on it. The wait allows other Processes to run.