> -----Original Message----- > From: Waynn Lue [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 01, 2008 11:06 PM > To: php-general@lists.php.net > Subject: [SPAM] [PHP] FIFO files on PHP? > Importance: Low > > I'm trying to build a queue out using FIFO files (someone on the MySQL > list suggested checking them out instead of using the database), but > I'm running into a problem because of the synchronous fwrite call. > Here's the code: > > $fifoFile = '/tmp/fifo'; > if (!file_exists($fifoFile)) { > posix_mkfifo($fifoFile, 0600); > } > $fp = fopen($fifoFile, "w"); > fwrite($fp, "content"); > fclose($fp); > > But this will block until something actually reads the pipe. Is there > any way to write to the pipe, then go away as opposed to waiting until > something consumes it? Otherwise, I may just go back to a database > table. > > Thanks, > Waynn > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php
Fifo nodes are equivalent to a pipe (|) and have no size on the file system and therefore the write won't finish until some process reads from the node. See the man page http://linux.die.net/man/7/fifo . -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
