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annotate src/g23m-fad/tcpip/rnet/rnet_rt/rnet_rt_api_getmaxpacketsize.c @ 101:2c4e31c7c4e5

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LICENSE: same as Citrine and Magnetite
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 21 Jul 2018 07:28:12 +0000
parents d393cd9bb723
children
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1 /**
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2 * @file rnet_rt_api_getmaxpacketsize.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_getmaxpacketsize.c,v 1.3 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 * 7/23/2002 Regis Feneon Create
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19 *
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20 */
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21 #include "rnet_cfg.h"
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22 #ifdef RNET_CFG_REAL_TRANSPORT
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23
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24 #include "rnet_rt_i.h"
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25 #include "rnet_rt_env.h"
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27 /**
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28 * Gets the maximum send size of a message.
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29 *
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30 * @param desc Connection identifier [IN].
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31 * @param size_p Maximum send size [OUT].
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32 * @return RNET_NOT_INITIALIZED NET subsystem not initialized (internal error).
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33 * RNET_INTERNAL_ERR Network subsystem failed.
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34 * RNET_INVALID_PARAMETER The connection ID is invalid.
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35 * RNET_NOT_READY Still processing a callback function.
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36 * RNET_OK Local address/port successfully get.
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37 */
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38
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39 T_RNET_RET rnet_rt_get_max_packet_size(T_RNET_DESC * desc,
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40 UINT32 * size_p)
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41 {
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42 int err, len, maxsize;
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43
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44 len = sizeof( maxsize);
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45
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46 /* get socket buffer size */
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47 rvf_lock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
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48 err = ngSAIOGetOption( (NGsock *) desc, NG_IOCTL_SOCKET, NG_SO_SNDBUF,
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49 &maxsize, &len);
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50 rvf_unlock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
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51
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52 if( err == NG_EOK) {
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53 *size_p = maxsize;
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54 return( RNET_OK);
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55 }
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57 return( rnet_rt_ngip_error( err));
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58 }
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59
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60 #endif /* ifdef RNET_CFG_REAL_TRANSPORT */
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