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I write a simple function using the lwip api
. the function is followed.
static void vProcessTCPConnection( struct netconn
*pxNetCon )
{ struct netbuf *pxRxBuffer; portCHAR *pcRxString; unsigned portSHORT usLength; while((pxRxBuffer =
netconn_recv( pxNetCon )) != NULL)
{ netbuf_data(pxRxBuffer, ( void * ) &pcRxString, &usLength); netconn_write(pxNetCon, pcRxString, usLength, NETCONN_COPY); //memp_free(MEMP_NETBUF, pxRxBuffer); } netbuf_delete( pxRxBuffer ); netconn_close( pxNetCon );
} after I run the function , I connect to target running the
funciton from a pc.
I input some characters, the pc endpoint will send these characters to
target.
after the target received character, then send back .
I found I only send 4 times. if I add memp_free(MEMP_NETBUF,
pxRxBuffer);
I can send 16 times. Can anybody tell me how to correctly
release the memory ?
thanks
Boter |
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