Page Comparison

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net_tcp.h/net_tcp.c

Prototype

           CPU_BOOLEAN NetTCP_ConnCfgMaxSegSizeLocal(NET_TCP_CONN_ID   conn_id_tcp,
                                                    NET_TCP_SEG_SIZE  max_seg_size,
                                                    NET_ERR          *perr);

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Available only if TCP is enabled (see TCP Layer Configuration).

Notes / Warnings

The conn_id_tcp argument represents the TCP connection handle — not the socket handle. The following code may be used to get the TCP connection handle and configure TCP connection parameters (see also NetSock_GetConnTransportID):

NET_SOCK_ID     sock_id;
NET_TCP_CONN_ID conn_id_tcp;
NET_ERR         err;
sock_id     = Application's TCP socket ID; /* Get application's TCP socket     ID. */
                                           /* Get socket's      TCP connection ID. */
conn_id_tcp = (NET_TCP_CONN_ID)NetSock_GetConnTransportID(sock_id, &err);
if (err == NET_SOCK_ERR_NONE) { /* If NO errors, ...                                        */
                                /* ... configure TCP connection local maximum segment size. */
    NetTCP_ConnCfgMaxSegSizeLocal(conn_id_tcp, 1360u);
}

NetTCP_ConnCfgMaxSegSizeLocal() is called by application function(s) and must not be called with the global network lock already acquired. It must block all other network protocol tasks by pending on and acquiring the global network lock (see “net.h Note #3”). This is required since an application's network protocol suite API function access is asynchronous to other network protocol tasks.