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Made the temporary buffer part of the TCP senddata() API, to ease the

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transition away from uIP.

Prepared ipv4.c for transition away from uIP.
This commit is contained in:
Michael Brown
2006-06-17 23:20:54 +00:00
parent 3c8aafa209
commit 8637834031
6 changed files with 61 additions and 38 deletions
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18
src/net/tcp.c
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@@ -40,11 +40,10 @@
*
* @code
*
* static void my_senddata ( struct tcp_connection *conn ) {
* int len;
*
* len = snprintf ( tcp_buffer, tcp_buflen, "FETCH %s\r\n", filename );
* tcp_send ( conn, tcp_buffer + already_sent, len - already_sent );
* static void my_senddata ( struct tcp_connection *conn, void *buf,
* size_t len ) {
* len = snprintf ( buf, len, "FETCH %s\r\n", filename );
* tcp_send ( conn, buf + already_sent, len - already_sent );
* }
*
* @endcode
@@ -53,13 +52,12 @@
* variably-sized data.
*
* Note that you cannot use this simple mechanism if you want to be
* able to construct single data blocks of more than #tcp_buflen
* bytes.
* able to construct single data blocks of more than #len bytes.
*/
void *tcp_buffer = uip_buf + ( 40 + UIP_LLH_LEN );
static void *tcp_buffer = uip_buf + ( 40 + UIP_LLH_LEN );
/** Size of #tcp_buffer */
size_t tcp_buflen = UIP_BUFSIZE - ( 40 + UIP_LLH_LEN );
static size_t tcp_buflen = UIP_BUFSIZE - ( 40 + UIP_LLH_LEN );
/**
* Open a TCP connection
@@ -148,7 +146,7 @@ void uip_tcp_appcall ( void ) {
op->newdata ( conn, ( void * ) uip_appdata, uip_len );
if ( ( uip_rexmit() || uip_newdata() || uip_acked() ||
uip_connected() || uip_poll() ) && op->senddata )
op->senddata ( conn );
op->senddata ( conn, tcp_buffer, tcp_buflen );
}
/* Present here to allow everything to link. Will go into separate