I'm not as familiar with Apache as I am with Netscape's
web server...but this is the sort of thing that's
abstracted from a cgi-bin program.
Under Netscape's nsapi routines, you can detect
a failure in net_write(), which includes the user
pressing the stop button.
It would appear that there is an Apache equivalent, but
you would need to be running something like mod_perl to
gain access to the Apache "request write" functions.
From perusing the mod_perl lists, it appears there
was a change starting with Apache 1.3.6. So...
- For pre-1.3.6 Apache: You have to handle SIGPIPE
- Apache 1.3.6 and later: $r->print() returns
false on write failures
More info found at this url:
http://thingy.kcilink.com/modperlguide/debug/Handling_the_User_pressed_Stop_.html
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