ospmsgattr.c

mgcp协议源代码。支持多种编码：g711

/*
*########################################################################
*########################################################################
*########################################################################
*                                                               
*   COPYRIGHT (c) 1998, 1999 by TransNexus, LLC                          
*                                                                    
*   This software contains proprietary and confidential information  
*   of TransNexus, LLC. Except as may be set forth in the license    
*   agreement under which this software is supplied, use, disclosure, 
*   or reproduction is prohibited without the prior, express, written
*   consent of TransNexus, LLC.                                      
*                                     
*
*
*
*
*
*
*#########################################################################
*#########################################################################
*#########################################################################
*/


/*
 * ospmsgattr.c - OSP attribute processing.
 */

#include "osp.h"
#include "ospmsgdesc.h"
#include "ospmsgattr.h"

/**/
/*-----------------------------------------------------------------------*
 * global variables
 *-----------------------------------------------------------------------*/

/* array that associates attribute and names */

const OSPTMSGDESC OSPVAttrDescs[] =
{
    { ospeAttrUnknown,       "" },
    { ospeAttrComponentId,   "componentId" },
    { ospeAttrCritical,      "critical" },
    { ospeAttrEncoding,      "encoding" },
    { ospeAttrMessageId,     "messageId" },
    { ospeAttrType,          "type" },
    { ospeAttrVersion,       "version"},
    { ospeAttrRandom,        "random"}
};

const unsigned OSPVNumAttrDesc = sizeof(OSPVAttrDescs)/sizeof(OSPTMSGDESC);

#ifdef OSPC_DEBUG
/**/
/*-----------------------------------------------------------------------*
 * OSPPMsgGetAttrName() - get an attribute name from a part value
 *-----------------------------------------------------------------------*/
const char *                              /* returns pointer to the name */
OSPPMsgGetAttrName(
    OSPTMSGATTRPART ospvPart
)
{
    const char *ospvName = OSPC_OSNULL;

    if (ospvPart!= OSPC_MSGPARTUNKNOWN) 
    {
        ospvName = OSPPMsgDescGetName((OSPTMSGPART)ospvPart, OSPVAttrDescs,
            OSPVNumAttrDesc);
    }
    return(ospvName);
}

/**/
/*-----------------------------------------------------------------------*
 * OSPPMsgGetAttrPart() - get an attribute part ID from its name
 *-----------------------------------------------------------------------*/
OSPTMSGATTRPART                           /* returns part */
    OSPPMsgGetAttrPart(
    const char *ospvName
    )
{
    OSPTMSGATTRPART ospvPart = ospeAttrUnknown;

    if (ospvName != OSPC_OSNULL) 
    {
        ospvPart = (OSPTMSGATTRPART) OSPPMsgDescGetPart(ospvName,
            OSPVAttrDescs, OSPVNumAttrDesc);
    }
    return(ospvPart);
}
#endif /* OSPC_DEBUG */