On 2012-08-14 09:06:20 +0200, michael.vancann...@wisa.be wrote: > > > On Mon, 13 Aug 2012, Leonardo M. Ramé wrote: > > >On 2012-08-13 15:15:56 -0700, leledumbo wrote: > >>>How can I send responses by intervals? > >> > >>AFAIK that's not the way web application works. It's the client that should > >>be querying the server in a regular interval (using AJAX request perhaps). > >>The server can track current progress status and return that right away when > >>asked. > >> > > > >Yes, I know that, but I thought Lazarus have something easy to develop > >such process. > > > >The way I'm thinking of implementing is this: > > > >1) The client app asks the server (a CGI process) for a process ID, for > >example 123, by calling getProcId. > >2) Using this ID, the client calls the time-consuming task, passing the > >ID. for example, runTask(Id). At this time, the server launches a > >program passing the ID for the task. This must be a multi-thread > >program, because it can be asked for running many tasks, and can be > >asked for the status of each task. The program only finishes when the > >last task is ended. > >3) The client calss a getProcStatus(ID) method. The server, using IPC or > >Pipes, asks the already-launched process for its status. > > I have code which does exactly that. It's used in production. It's > unix-only, however (it relies on fork and exec). > > If you're interested, I can send you the code. > > Michael.
Yes please, send me the code. Regards, -- Leonardo M. Ramé http://leonardorame.blogspot.com -- _______________________________________________ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus