#46172 [Opn->Bgs]: fwrite refuses to write more then 32k to non-blocking socket

ID: 46172 Updated by: scottmac@php.net Reported By: php at 3r1c dot eu -Status: Open +Status: Bogus Bug Type: Streams related Operating System: FreeBSD PHP Version: 5.2.6 New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. The default tcp socket send buffer on FreeBSD is 32k, you need to change net.inet.tcp.sendspace to a higher value if you want to write more. Previous Comments: ------------------------------------------------------------------------ [2008-09-25 11:34:58] php at 3r1c dot eu Description: ------------ fwrite refuses to write more then 32k to non-blocking socket. removing the stream_set_blocking line in my sample code will make the program work properly. It seems to get higher amount written on a localhost socket, about 120kb. Reproduce code: --------------- #!/usr/local/bin/php -q <?php // create a string with 100kb of zeros $bytes = ""; for ($i = 0; $i < 100000; $i++){ $bytes .= "0"; } $sock = @stream_socket_client('tcp://google.com:80', $errno, $errstr, 30); stream_set_blocking($sock, 0); $written = fwrite($sock, $bytes); echo "Wrote $written bytes\n"; fclose($sock); ?> Expected result: ---------------- Wrote 100000 bytes Actual result: -------------- Wrote 32768 bytes ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=46172&edit=1