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comparison src/g23m-fad/tcpip/rnet/rnet_rt/rnet_rt_api_send.c @ 1:d393cd9bb723

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src/g23m-*: initial import from Magnetite
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 15 Jul 2018 04:40:46 +0000
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0:b6a5e36de839 1:d393cd9bb723
1 /**
2 * @file rnet_rt_api_send.c
3 *
4 * RNET_RT API
5 *
6 * @author Regis Feneon
7 * @version 0.1
8 */
9
10 /*
11 * $Id: rnet_rt_api_send.c,v 1.4 2002/10/30 15:23:34 rf Exp $
12 * $Name: ti_20021030 $
13 *
14 * History:
15 *
16 * Date Author Modification
17 * --------------------------------------------------
18 * 3/22/2002 Regis Feneon Create
19 *
20 * (C) Copyright 2002 by TI, All Rights Reserved
21 *
22 */
23
24 #include "rnet_cfg.h"
25 #ifdef RNET_CFG_REAL_TRANSPORT
26
27 #include "rnet_rt_i.h"
28 #include "rnet_rt_env.h"
29
30 /**
31 * Enqueues the data for sending.
32 *
33 * Data is sent by enqueueing the data with a call to rnet_send().
34 * The function is not-blocking.
35 *
36 * In case of TCP, when the data is successfully transmitted to the remote
37 * host, the application will be notified with a RNET_SEND_CFM message.
38 *
39 * Returns RNET_PARTIAL_SENT if not all data could be sent and the function
40 * needs to be called again later to send the rest of the data. In that case,
41 * the out value of len_p is the number of bytes effectively sent.
42 *
43 * The buffer is copied by RNET, so the application can free the data buffer
44 * when the function returns.
45 *
46 * TODO: The proper way to use this function.
47 *
48 * @param desc Connection identifier [IN].
49 * @param buff Pointer on the data to send [IN].
50 * @param len_p Pointer on the length of the data to send [IN].
51 * Pointer on the length of the data effectively sent [OUT].
52 * @return RNET_MEMORY_ERR Not enough memory is available
53 * RNET_NOT_INITIALIZED NET subsystem not initialized (internal error).
54 * RNET_INTERNAL_ERR Network subsystem failed.
55 * or Requested address is a broadcast address.
56 * RNET_INVALID_PARAMETER The connection ID is invalid.
57 * or The ID is not connected.
58 * or Invalid buff parameter.
59 * or Connection not bound with bind.
60 * RNET_CONN_ABORTED Connection broken due to the "keep-alive" activity
61 * detecting a failure while the operation was in progress.
62 * or Virtual circuit terminated due to a time-out or other failure.
63 * RNET_MSG_SIZE Message oriented connection (UDP), and the message
64 * is larger than the maximum supported by the underlying transport.
65 * RNET_NET_UNREACHABLE Remote host cannot be reached from this host at this time.
66 * RNET_CONN_RESET The virtual circuit was reset by the remote side executing a "hard"
67 * or "abortive" close.
68 * RNET_TIMEOUT The connection has been dropped, because of a
69 * network failure or because the system on the other end went down
70 * without notice.
71 * RNET_NOT_READY Still processing a callback function.
72 * RNET_OK Sending in progress
73 * RNET_SEND_CFM will be sent when the sending
74 * has been successfully completed.
75 */
76
77 T_RNET_RET rnet_rt_send (T_RNET_DESC * desc,
78 T_RVF_BUFFER * buff,
79 UINT16 * len_p)
80 {
81 int ret;
82
83 rvf_lock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
84 ret = ngSAIOSend( (NGsock *) desc, buff, *len_p, 0, NULL);
85 if( (ret == NG_EWOULDBLOCK) || ((ret > 0) && (ret != *len_p))) {
86 /* send RNET_SEND_RDY message when data will be acknowledged */
87 ((T_RNET_RT_SOCK *) desc)->flags |= RNET_RT_SOCKF_NOTIFY_SEND;
88 }
89 rvf_unlock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
90
91 if( ret == NG_EWOULDBLOCK) {
92 ret = 0;
93 }
94 if( ret >= 0) {
95 if( ret != *len_p) {
96 /* not all data has been sent */
97 *len_p = ret;
98 return( RNET_PARTIAL_SENT);
99 }
100 return( RNET_OK);
101 }
102
103 return( rnet_rt_ngip_error( ret));
104 }
105
106 #endif /* ifdef RNET_CFG_REAL_TRANSPORT */
107