This class can be used to write a binary file that consists of an arbitrary header followed by a number of datagrams.
__init__() → None¶
open(file: FileReference) → bool¶
Opens the indicated filename for writing. Returns true if successful, false on failure.
open(filename: Filename) → bool
Opens the indicated filename for writing. Returns true on success, false on failure.
open(out: ostream, filename: Filename) → bool
Starts writing to the indicated stream. Returns true on success, false on failure. The DatagramOutputFile does not take ownership of the stream; you are responsible for closing or deleting it when you are done.
close() → None¶
Closes the file. This is also implicitly done when the DatagramOutputFile destructs.
writeHeader(header: str) → bool¶
Writes a sequence of bytes to the beginning of the datagram file. This may be called any number of times after the file has been opened and before the first datagram is written. It may not be called once the first datagram is written.