Re: Re: Threading

Hi! >"George Schlossnagle" <george@omniti.com> escribió en el mensaje news:F8874747-4A84-11D7-8ACF-000393B2B3C0@omniti.com... >On Thursday, February 27, 2003, at 01:50 PM, Braulio JosX Solano Rojas >wrote: > > Are there semaphores in PHP? > >Yes. I'd recommend a reading of the fine manual. I did of course. > Of course if you're actually writing an extension it doesn't matter > much if the semaphores are implemented in PHP or not, since you'll > probably just want to use the sysv ipc support of the os yourself, > without taking it through php userland functions. I already know about this functionality, but as you know this is only for Unix. And yes it matters if the semaphores are implemented in PHP since I need portability between different OSes. (I like Inter-Process Comunication, I am sorry not to have it on win32). I am working in an extension that provides functionality to read CDS/ISIS databases on PHP. Those databases are files (there is not a server, but a server is planned by the OpenIsis project [1]), so when there is concurrency we should provide consistent data. There is a paper on different solutions on how to solve this on PHP [2]. I was thinking of assume the worst case: PHP as a CGI. But, I am really interested in multi-threading inside PHP. CDS/ISIS is wide used in latin-america by librarians. If I could have a multi-platform solution, that would be great. Regards, Braulio [1] http://sourceforge.net/projects/isis [2] http://openisis.org/openisis/doc/Concurrency