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Fixed missing logic in readahead buffer logic

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@409 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2007-11-27 19:19:30 +00:00
parent c3a7c92677
commit 34e4d846a6
19 changed files with 82 additions and 136 deletions
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include/net/uip/uip-tcp.h
+7
View File
@@ -121,6 +121,9 @@ struct uip_conn
uint8 timer; /* The retransmission timer (units: half-seconds) */
uint8 nrtx; /* The number of retransmissions for the last
* segment sent */
uint8 data_flags; /* Flags that will be handled by the data_event()
* callback function (see data_event() discussion below).
*/
/* Read-ahead buffering */
@@ -143,6 +146,10 @@ struct uip_conn
* UIP_NEWDATA - May be cleared to suppress returning the ACK response.
* (dev->d_len should also be set to zero in this case).
*
*
* The provider of the data_event callback must also set data_flags. This
* will inform the uIP layer which flags are and are not handled by the
* callback.
* accept() is called when the TCP logic has created a connection
* connection_event() is called on any of the subset of connection-related events
*/
include/net/uip/uip.h
+2 -89
View File
@@ -266,9 +266,8 @@ extern void uip_setipid(uint16 id);
*
* Note: This function does not guarantee that the sent data will
* arrive at the destination. If the data is lost in the network, the
* application will be invoked with the uip_rexmit_event() event being
* set. The application will then have to resend the data using this
* function.
* application will be invoked with the UIP_REXMIT flag set. The
* application will then have to resend the data using this function.
*
* data A pointer to the data which is to be sent.
*
@@ -277,92 +276,6 @@ extern void uip_setipid(uint16 id);
extern void uip_send(struct uip_driver_s *dev, const void *buf, int len);
/* The length of any incoming data that is currently avaliable (if avaliable)
* in the d_appdata buffer.
*
* The test function uip_data() must first be used to check if there
* is any data available at all.
*/
#define uip_datalen(dev) ((dev)->d_len)
/* uIP tests that can be made to determine in what state the current
* connection is, and what the application function should do.
*
* Is new incoming data available?
*
* Will reduce to non-zero if there is new data for the application
* present at the d_appdata pointer. The size of the data is
* avaliable through the d_len element.
*/
#define uip_newdata_event(f) ((f) & UIP_NEWDATA)
/* Has previously sent data been acknowledged?
*
* Will reduce to non-zero if the previously sent data has been
* acknowledged by the remote host. This means that the application
* can send new data.
*/
#define uip_ack_event(f) ((f) & UIP_ACKDATA)
/* Has the connection just been connected?
*
* Reduces to non-zero if the current connenetutils/telnetd/telnetd.cction has been connected to
* a remote host. This will happen both if the connection has been
* actively opened (with uip_connect()) or passively opened (with
* uip_listen()).
*/
#define uip_connected_event(f) ((f) & UIP_CONNECTED)
/* Has the connection been closed by the other end?
*
* Is non-zero if the connection has been closed by the remote
* host. The application may then do the necessary clean-ups.
*/
#define uip_close_event(f) ((f) & UIP_CLOSE)
/* Has the connection been aborted by the other end?
*
* Non-zero if the current connection has been aborted (reset) by the
* remote host.
*/
#define uip_abort_event(f) ((f) & UIP_ABORT)
/* Has the connection timed out?
*
* Non-zero if the current connection has been aborted due to too many
* retransmissions.
*/
#define uip_timeout_event(f) ((f) & UIP_TIMEDOUT)
/* Do we need to retransmit previously data?
*
* Reduces to non-zero if the previously sent data has been lost in
* the network, and the application should retransmit it. The
* application should send the exact same data as it did the last
* time, using the uip_send() function.
*/
#define uip_rexmit_event(f) ((f) & UIP_REXMIT)
/* Is the connection being polled by uIP?
*
* Is non-zero if the reason the application is invoked is that the
* current connection has been idle for a while and should be
* polled.
*
* The polling event can be used for sending data without having to
* wait for the remote host to send data.
*/
#define uip_poll_event(f) ((f) & UIP_POLL)
/* uIP convenience and converting functions.
*
* These functions can be used for converting between different data