lwIP BasicWeb block at sys_mbox_fetch(conn->m
Posted by Nobody/Anonymous on February 15, 2006
Inside vBasicWebServer(), when it tries to open up a new connection, "pxHTTPListener = netconn_new( NETCONN_TCP );", it tries to call "sys_arch_mbox_fetch(mbox, msg, 0);". Since there is no message in the mbox, it blocks and will not continue to do "netconn_bind()....".
The reason it uses "block" mode to do mbox fetch is because when vBasicWebServer task is created, the timeout structure has a "next" field with value 0.
Is this normal behavior?
RE: lwIP BasicWeb block at sys_mbox_fetch(conn->m
Posted by Nobody/Anonymous on February 16, 2006
Most likely, nobody will help me out on this one. However, I'll still give it a try.
It seems that I'm not alone on this issue also. I found some one on the internet had the same issue when he tried to use lwIP's netconn_new(). It blocks on the call.
FreeRTOS used lwIP in one of the samples, i.e., lwIP_demo_Rowley_ARM7 . I'm just wondering did this issue come up when netconn_new() was called? How was it handled? I'm thinking send a fake message to itself before calling netconn_new() so that it will not block.
Thanks for any input.
Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd..
See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.