On Mon, 4 Feb 2002 11:17:38 -0800, Aaron Bannert wrote: >Can someone please comment on the state of the OS/2 and Netware lock >implementation? Is it unnecessary or even senseless to implement >a cross-process lock on Netware (where I've been told there are >only threads)?
On OS/2 the only native mechanism that has cross-process lock behaviour is file locking (which is yuck because then you have to have a lock file). In fact I suspect the only reason we have cross-process locks at all is that some platforms only have file locks so the API was created to fit these platforms' capabilities. Wouldn't it be more useful & portable for the cross-process lock type to have the "lock all" behaviour, considering that on non-threaded platforms it amounts to the same thing? I'd expect that any platform that has threads would also have process sharable mutexes, making a "lock all" API universal to all platforms, threaded or not. Is it ever useful to have the cross-process behaviour in a threaded application? (not meant as a rhetorical question but I can't think of any cases off the top of my head). -- ______________________________________________________________________________ | Brian Havard | "He is not the messiah! | | [EMAIL PROTECTED] | He's a very naughty boy!" - Life of Brian | ------------------------------------------------------------------------------
