Busy CallBack

Some UUDeview library functions, like scanning of an input file or decoding an output file, can take quite some time. A php script can use a Busy Callback function which is called frequently while a large action is being executed within the library. It is not called when the php script itself has control. The Busy Callback function receives an object corresponding to the C structure uuprogress as unique parameter. This object has the following members :

• int action : What the library is currently doing. One of the following integer constants:
  • UUACT_IDLE : The library is idle. This value shouldn’t be seen in the Busy Callback, because it is never called in an idle state.
  • UUACT_SCANNING : Scanning an input file.
  • UUACT_DECODING : Decoding a file.
  • UUACT_COPYING : Copying a file.
  • UUACT_ENCODING : Encoding a file.
• string curfile : The name of the file we're working on. It may include the full path.
• int partno : When decoding a file, this is the current part number we’re working on.
• int numparts : The maximum part number of this file.
• int percent : The percentage of the current part already processed.
• int fsize : The size of the current file.