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view src/g23m-fad/tcpip/rnet/rnet_rt/rnet_rt_api_send.c @ 139:148776c3f4c9
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author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 06 Feb 2019 21:03:09 +0000 |
parents | d393cd9bb723 |
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/** * @file rnet_rt_api_send.c * * RNET_RT API * * @author Regis Feneon * @version 0.1 */ /* * $Id: rnet_rt_api_send.c,v 1.4 2002/10/30 15:23:34 rf Exp $ * $Name: ti_20021030 $ * * History: * * Date Author Modification * -------------------------------------------------- * 3/22/2002 Regis Feneon Create * * (C) Copyright 2002 by TI, All Rights Reserved * */ #include "rnet_cfg.h" #ifdef RNET_CFG_REAL_TRANSPORT #include "rnet_rt_i.h" #include "rnet_rt_env.h" /** * Enqueues the data for sending. * * Data is sent by enqueueing the data with a call to rnet_send(). * The function is not-blocking. * * In case of TCP, when the data is successfully transmitted to the remote * host, the application will be notified with a RNET_SEND_CFM message. * * Returns RNET_PARTIAL_SENT if not all data could be sent and the function * needs to be called again later to send the rest of the data. In that case, * the out value of len_p is the number of bytes effectively sent. * * The buffer is copied by RNET, so the application can free the data buffer * when the function returns. * * TODO: The proper way to use this function. * * @param desc Connection identifier [IN]. * @param buff Pointer on the data to send [IN]. * @param len_p Pointer on the length of the data to send [IN]. * Pointer on the length of the data effectively sent [OUT]. * @return RNET_MEMORY_ERR Not enough memory is available * RNET_NOT_INITIALIZED NET subsystem not initialized (internal error). * RNET_INTERNAL_ERR Network subsystem failed. * or Requested address is a broadcast address. * RNET_INVALID_PARAMETER The connection ID is invalid. * or The ID is not connected. * or Invalid buff parameter. * or Connection not bound with bind. * RNET_CONN_ABORTED Connection broken due to the "keep-alive" activity * detecting a failure while the operation was in progress. * or Virtual circuit terminated due to a time-out or other failure. * RNET_MSG_SIZE Message oriented connection (UDP), and the message * is larger than the maximum supported by the underlying transport. * RNET_NET_UNREACHABLE Remote host cannot be reached from this host at this time. * RNET_CONN_RESET The virtual circuit was reset by the remote side executing a "hard" * or "abortive" close. * RNET_TIMEOUT The connection has been dropped, because of a * network failure or because the system on the other end went down * without notice. * RNET_NOT_READY Still processing a callback function. * RNET_OK Sending in progress * RNET_SEND_CFM will be sent when the sending * has been successfully completed. */ T_RNET_RET rnet_rt_send (T_RNET_DESC * desc, T_RVF_BUFFER * buff, UINT16 * len_p) { int ret; rvf_lock_mutex( &rnet_rt_env_ctrl_blk_p->mutex); ret = ngSAIOSend( (NGsock *) desc, buff, *len_p, 0, NULL); if( (ret == NG_EWOULDBLOCK) || ((ret > 0) && (ret != *len_p))) { /* send RNET_SEND_RDY message when data will be acknowledged */ ((T_RNET_RT_SOCK *) desc)->flags |= RNET_RT_SOCKF_NOTIFY_SEND; } rvf_unlock_mutex( &rnet_rt_env_ctrl_blk_p->mutex); if( ret == NG_EWOULDBLOCK) { ret = 0; } if( ret >= 0) { if( ret != *len_p) { /* not all data has been sent */ *len_p = ret; return( RNET_PARTIAL_SENT); } return( RNET_OK); } return( rnet_rt_ngip_error( ret)); } #endif /* ifdef RNET_CFG_REAL_TRANSPORT */