A simpler alternative might be to use something like this adverb: NB.* doForTime: do verb for set number of seconds. doForTime=: 1 : 0 tsEnd=. y+6!:1 '' NB. Time now + how many seconds to run rr=. '' while. tsEnd>6!:1 '' do. rr=. u rr end. )
NB. For example, using an arbitrary function "f" f=: 3 : '<./y,?100$0' NB. Find lowest random number 6!:2 'rr=. f doForTime 5' NB. Only work on it for 5 seconds. 4.9970432 On 1/15/08, Devon McCormick <[EMAIL PROTECTED]> wrote: > > David - > > I have a script called "semaphore" which I use to flag a long-running > process to stop or continue depending on a value in a flag file. I've put > it on the J wiki at > http://www.jsoftware.com/jwiki/DevonMcCormick/semaphore . > > The code will need to be customized for your own use but it shouldn't be > too hard; there are a couple of notes on the page to point out a few items > to help you do this. The major problem is that it is probably more > elaborate than you need. For instance, I do a lot of work to allow the name > of the flag file to be entered in a number of different ways; you could just > hard-code this to a known name (in function "setFlagFileName"). > > Feel free to contact me if you would like some help getting this to work. > > Devon > > On 1/15/08, bill lam < [EMAIL PROTECTED]> wrote: > > > > I think that this is not possible for that running J instance alone. The > > reason > > is J is single thread so that while running the looping code, it can not > > process > > gui messages. Or you may test for a certain file periodically. If that > > file is > > deleted, then exit the loop. > > > > David Porter wrote: > > > I have a loop that processes around a hundred files. Once started, it > > > must continue or, you must stop it using one of several ugly methods > > > from the operating system. > > > > > > I put in the break. control word that looks at a variable to enable a > > > way to break out of the loop. I thought setting that variable with a > > > button on the form would be a good idea, but all I get when I try this > > > > > while the loop is running is the Windows "boink" . Is there a good, > > or > > > any, way to set this variable while the loop is running? > > > > > > Dave Porter > > > ---------------------------------------------------------------------- > > > > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > > > -- > Devon McCormick, CFA > ^me^ at acm. > org is my > preferred e-mail > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
