onSessionExit: Registers a function to be called when the R session finishes
Description
Registers a function to be called when the R session finishes.
Usage
"onSessionExit"(fcn, action=c("prepend", "append", "replace"), ...)
Arguments
fcn
A function to be called without argument. action
A character string specifying how the hook function is
added to list of hooks. Value
Returns (invisibly) the hooks successfully called.
Details
Functions registered this way are called when finalizeSession() is
called. Moreover, when this package is loaded, the .Last()
function is modified such that finalizeSession() is called.
However, note that .Last() is not guaranteed to be called
when the R session finished. For instance, the user may quit R by
calling quit(callLast=FALSE).
Moreover, when R is run in batch mode, .Last() is never called.