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annotate src/g23m-fad/tcpip/rnet/rnet_rt/rnet_rt_api_send.c @ 86:425ab6d987f3

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