/*------------------------------------------------------------------------- * rtcpcname.c - rtcpcnameadd, rtcpcnamerem *------------------------------------------------------------------------- */#include <ipOS.h>#include <ipHAL.h>#include <ipStack.h>#include <ipEthernet.h>#include "hust_rtp.h"#include "hust_rtplibcommon.h"#include "hust_rtcp.h"#include "hust_event.h"#include "hust_hash.h"#include "hust_linux.h"///#include <rtp.h>///#include <rtcp.h>///#include <util.h>///#include <hash.h>///#include <string.h>///#include <stdlib.h>///#include <strings.h>/*------------------------------------------------------------------------ * rtcpnameadd - insert a stream * in a list of streams with same cname *------------------------------------------------------------------------ */intrtcpcnameadd(struct session *psn, struct stream *pstm){	struct stream		*first;	struct cnamelist	*pcnl;///	if (pthread_mutex_lock(&psn->sn_cnamemutex) != 0)///		return ERROR;	/*	 * Lookup the list for the cname pstm->stm_cname.	 */	pcnl = (struct cnamelist  *) htget(psn->sn_cnames, (unsigned long int) pstm->stm_cname);	if (pcnl != NULL) {		/*		 * Insert pstm into the list of struct stream *'s		 * for cname pstm->stm_cname.		 */		first = pcnl->cn_stream;		pstm->stm_cnamenext = first->stm_cnamenext;		first->stm_cnamenext = pstm;		pstm->stm_cnameprev = first;		if (pstm->stm_cnamenext != NULL)			pstm->stm_cnamenext->stm_cnameprev = pstm;	} else {		/*		 * If the list does not exist, create it.		 */		pcnl = heap_alloc(sizeof(struct cnamelist));		memset(pcnl, 0, sizeof(struct cnamelist));    		pcnl->cn_stream = pstm;		pstm->stm_cnamenext = NULL;		pstm->stm_cnameprev = NULL;		htadd(psn->sn_cnames, (unsigned long int) strdup(pstm->stm_cname), pcnl);	}///	pthread_mutex_unlock(&psn->sn_cnamemutex);	return OK;}/*------------------------------------------------------------------------ * rtcpnamerem - remove a stream * from a list of streams with same cname *------------------------------------------------------------------------ */intrtcpcnamerem(struct session *psn, struct stream *pstm){	/*	 * Adjust pointers in the next and previous 	 * nodes in the threading.	 *////	if (pthread_mutex_lock(&psn->sn_cnamemutex) != 0)///		return ERROR;	if (pstm->stm_cnamenext != NULL)		pstm->stm_cnamenext->stm_cnameprev = pstm->stm_cnameprev;	if (pstm->stm_cnameprev != NULL)		pstm->stm_cnameprev->stm_cnamenext = pstm->stm_cnamenext;	/*	 * Check if the last source in the list was removed.	 * If the list is empty, delete the cname from the 	 * cname hashtable.	 */	if (pstm->stm_cnameprev == NULL &&	    pstm->stm_cnamenext == NULL)		htdel(psn->sn_cnames, (unsigned long int) pstm->stm_cname);  ///	pthread_mutex_unlock(&psn->sn_cnamemutex);  	return OK;  }