C++ Debug函數代碼示例

/*
 * NOTE: the dn must be normalized
 */
int
backsql_dn2id(
	Operation		*op,
	SlapReply		*rs,
	SQLHDBC			dbh,
	struct berval		*ndn,
	backsql_entryID		*id,
	int			matched,
	int			muck )
{
	backsql_info		*bi = op->o_bd->be_private;
	SQLHSTMT		sth = SQL_NULL_HSTMT; 
	BACKSQL_ROW_NTS		row = { 0 };
	RETCODE 		rc;
	int			res;
	struct berval		realndn = BER_BVNULL;

	/* TimesTen */
	char			upperdn[ BACKSQL_MAX_DN_LEN + 1 ];
	struct berval		tbbDN;
	int			i, j;

	/*
	 * NOTE: id can be NULL; in this case, the function
	 * simply checks whether the DN can be successfully 
	 * turned into an ID, returning LDAP_SUCCESS for
	 * positive cases, or the most appropriate error
	 */

	Debug( LDAP_DEBUG_TRACE, "==>backsql_dn2id(\"%s\")%s%s\n", 
			ndn->bv_val, id == NULL ? " (no ID expected)" : "",
			matched ? " matched expected" : "" );

	if ( id ) {
		/* NOTE: trap inconsistencies */
		assert( BER_BVISNULL( &id->eid_ndn ) );
	}

	if ( ndn->bv_len > BACKSQL_MAX_DN_LEN ) {
		Debug( LDAP_DEBUG_TRACE, 
			"   backsql_dn2id(\"%s\"): DN length=%ld "
			"exceeds max DN length %d:\n",
			ndn->bv_val, ndn->bv_len, BACKSQL_MAX_DN_LEN );
		return LDAP_OTHER;
	}

	/* return baseObject if available and matches */
	/* FIXME: if ndn is already mucked, we cannot check this */
	if ( bi->sql_baseObject != NULL &&
			dn_match( ndn, &bi->sql_baseObject->e_nname ) )
	{
		if ( id != NULL ) {
#ifdef BACKSQL_ARBITRARY_KEY
			ber_dupbv_x( &id->eid_id, &backsql_baseObject_bv,
					op->o_tmpmemctx );
			ber_dupbv_x( &id->eid_keyval, &backsql_baseObject_bv,
					op->o_tmpmemctx );
#else /* ! BACKSQL_ARBITRARY_KEY */
			id->eid_id = BACKSQL_BASEOBJECT_ID;
			id->eid_keyval = BACKSQL_BASEOBJECT_KEYVAL;
#endif /* ! BACKSQL_ARBITRARY_KEY */
			id->eid_oc_id = BACKSQL_BASEOBJECT_OC;

			ber_dupbv_x( &id->eid_ndn, &bi->sql_baseObject->e_nname,
					op->o_tmpmemctx );
			ber_dupbv_x( &id->eid_dn, &bi->sql_baseObject->e_name,
					op->o_tmpmemctx );

			id->eid_next = NULL;
		}

		return LDAP_SUCCESS;
	}
	
	/* begin TimesTen */
	assert( bi->sql_id_query != NULL );
	Debug( LDAP_DEBUG_TRACE, "   backsql_dn2id(\"%s\"): id_query \"%s\"\n",
			ndn->bv_val, bi->sql_id_query );
 	rc = backsql_Prepare( dbh, &sth, bi->sql_id_query, 0 );
	if ( rc != SQL_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, 
			"   backsql_dn2id(\"%s\"): "
			"error preparing SQL:\n   %s", 
			ndn->bv_val, bi->sql_id_query );
		backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
		res = LDAP_OTHER;
		goto done;
	}

	realndn = *ndn;
	if ( muck ) {
		if ( backsql_api_dn2odbc( op, rs, &realndn ) ) {
			Debug( LDAP_DEBUG_TRACE, "   backsql_dn2id(\"%s\"): "
				"backsql_api_dn2odbc(\"%s\") failed\n", 
				ndn->bv_val, realndn.bv_val );
			res = LDAP_OTHER;
			goto done;
//.........這裏部分代碼省略.........

void
VEP_Parse(const struct busyobj *bo, const char *p, size_t l)
{
	struct vep_state *vep;
	const char *e;
	struct vep_match *vm;
	int i;

	CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
	vep = bo->vep;
	CHECK_OBJ_NOTNULL(vep, VEP_MAGIC);
	assert(l > 0);

	/* XXX: Really need to fix this */
	if (vep->hack_p == NULL)
		vep->hack_p = p;

	vep->ver_p = p;

	e = p + l;

	while (p < e) {
		AN(vep->state);
		i = e - p;
		if (i > 10)
			i = 10;
		Debug("EP %s %d (%.*s) [%.*s]\n",
		    vep->state,
		    vep->remove,
		    vep->tag_i, vep->tag,
		    i, p);
		assert(p >= vep->ver_p);

		/******************************************************
		 * SECTION A
		 */

		if (vep->state == VEP_START) {
			if (FEATURE(FEATURE_ESI_REMOVE_BOM) && *p == '\xeb') {
				vep->match = vep_match_bom;
				vep->state = VEP_MATCH;
			} else
				vep->state = VEP_BOM;
		} else if (vep->state == VEP_BOM) {
			vep_mark_skip(vep, p);
			if (FEATURE(FEATURE_ESI_DISABLE_XML_CHECK))
				vep->state = VEP_NEXTTAG;
			else
				vep->state = VEP_TESTXML;
		} else if (vep->state == VEP_TESTXML) {
			/*
			 * If the first non-whitespace char is different
			 * from '<' we assume this is not XML.
			 */
			while (p < e && vct_islws(*p))
				p++;
			vep_mark_verbatim(vep, p);
			if (p < e && *p == '<') {
				p++;
				vep->state = VEP_STARTTAG;
			} else if (p < e && *p == '\xeb') {
				VSLb(vep->bo->vsl, SLT_ESI_xmlerror,
				    "No ESI processing, "
				    "first char not '<' but BOM."
				    " (See feature esi_remove_bom)"
				);
				vep->state = VEP_NOTXML;
			} else if (p < e) {
				VSLb(vep->bo->vsl, SLT_ESI_xmlerror,
				    "No ESI processing, "
				    "first char not '<'."
				    " (See feature esi_disable_xml_check)"
				);
				vep->state = VEP_NOTXML;
			}
		} else if (vep->state == VEP_NOTXML) {
			/*
			 * This is not recognized as XML, just skip thru
			 * vfp_esi_end() will handle the rest
			 */
			p = e;
			vep_mark_verbatim(vep, p);

		/******************************************************
		 * SECTION B
		 */

		} else if (vep->state == VEP_NOTMYTAG) {
			if (FEATURE(FEATURE_ESI_IGNORE_OTHER_ELEMENTS)) {
				p++;
				vep->state = VEP_NEXTTAG;
			} else {
				vep->tag_i = 0;
				while (p < e) {
					if (*p++ == '>') {
						vep->state = VEP_NEXTTAG;
						break;
					}
				}
			}
//.........這裏部分代碼省略.........

static int
pguid_repair( BackendDB *be )
{
	slap_overinst *on = (slap_overinst *)be->bd_info;
	void *ctx = ldap_pvt_thread_pool_context();
	Connection conn = { 0 };
	OperationBuffer opbuf;
	Operation *op;
	slap_callback sc = { 0 };
	pguid_repair_cb_t pcb = { 0 };
	SlapReply rs = { REP_RESULT };
	pguid_mod_t *pmod;
	int nrepaired = 0;

	connection_fake_init2( &conn, &opbuf, ctx, 0 );
	op = &opbuf.ob_op;

	op->o_tag = LDAP_REQ_SEARCH;
	memset( &op->oq_search, 0, sizeof( op->oq_search ) );

	op->o_bd = select_backend( &be->be_nsuffix[ 0 ], 0 );

	op->o_req_dn = op->o_bd->be_suffix[ 0 ];
	op->o_req_ndn = op->o_bd->be_nsuffix[ 0 ];

	op->o_dn = op->o_bd->be_rootdn;
	op->o_ndn = op->o_bd->be_rootndn;

	op->ors_scope = LDAP_SCOPE_SUBORDINATE;
	op->ors_tlimit = SLAP_NO_LIMIT;
	op->ors_slimit = SLAP_NO_LIMIT;
	op->ors_attrs = slap_anlist_no_attrs;

	op->ors_filterstr.bv_len = STRLENOF( "(!(=*))" ) + ad_parentUUID->ad_cname.bv_len;
	op->ors_filterstr.bv_val = op->o_tmpalloc( op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
	snprintf( op->ors_filterstr.bv_val, op->ors_filterstr.bv_len + 1,
		"(!(%s=*))", ad_parentUUID->ad_cname.bv_val );

	op->ors_filter = str2filter_x( op, op->ors_filterstr.bv_val );
	if ( op->ors_filter == NULL ) {
		rs.sr_err = LDAP_OTHER;
		goto done_search;
	}
	
	op->o_callback = ≻
	sc.sc_response = pguid_repair_cb;
	sc.sc_private = &pcb;
	pcb.on = on;

	(void)op->o_bd->bd_info->bi_op_search( op, &rs );

	op->o_tag = LDAP_REQ_MODIFY;
	sc.sc_response = slap_null_cb;
	sc.sc_private = NULL;
	memset( &op->oq_modify, 0, sizeof( req_modify_s ) );

	for ( pmod = pcb.mods; pmod != NULL; ) {
		pguid_mod_t *pnext;

		Modifications *mod;
		SlapReply rs2 = { REP_RESULT };

		mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
		mod->sml_flags = SLAP_MOD_INTERNAL;
		mod->sml_op = LDAP_MOD_REPLACE;
		mod->sml_desc = ad_parentUUID;
		mod->sml_type = ad_parentUUID->ad_cname;
		mod->sml_values = ch_malloc( sizeof( struct berval ) * 2 );
		mod->sml_nvalues = NULL;
		mod->sml_numvals = 1;
		mod->sml_next = NULL;

		ber_dupbv( &mod->sml_values[0], &pmod->pguid );
		BER_BVZERO( &mod->sml_values[1] );

		op->o_req_dn = pmod->ndn;
		op->o_req_ndn = pmod->ndn;

		op->orm_modlist = mod;
		op->o_bd->be_modify( op, &rs2 );
		slap_mods_free( op->orm_modlist, 1 );
		if ( rs2.sr_err == LDAP_SUCCESS ) {
			Debug( LDAP_DEBUG_TRACE, "%s: pguid_repair: entry DN=\"%s\" repaired\n",
				op->o_log_prefix, pmod->ndn.bv_val, 0 );
			nrepaired++;

		} else {
			Debug( LDAP_DEBUG_ANY, "%s: pguid_repair: entry DN=\"%s\" repair failed (%d)\n",
				op->o_log_prefix, pmod->ndn.bv_val, rs2.sr_err );
		}

		pnext = pmod->next;
		op->o_tmpfree( pmod, op->o_tmpmemctx );
		pmod = pnext;
	}

done_search:;
	op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
	filter_free_x( op, op->ors_filter, 1 );

//.........這裏部分代碼省略.........

//.........這裏部分代碼省略.........
				}
			}
		}
	}

	req = NewPack();
	BinToStr(key_str, sizeof(key_str), c->Key, sizeof(c->Key));
	StrUpper(key_str);
	PackAddStr(req, "key", key_str);

	// Build Number
	build = c->Cedar->Build;


	PackAddInt(req, "build", build);
	PackAddInt(req, "osinfo", GetOsInfo()->OsType);
	PackAddInt(req, "is_64bit", Is64());
#ifdef	OS_WIN32
	PackAddInt(req, "is_windows_64bit", MsIs64BitWindows());
#endif	// OS_WIN32
	PackAddBool(req, "is_softether", true);
	PackAddBool(req, "is_packetix", false);
	PackAddStr(req, "machine_key", machine_key_str);
	PackAddStr(req, "machine_name", machine_name);
	PackAddInt(req, "lasterror_ipv4", c->Err_IPv4_GetMyIp);
	PackAddInt(req, "lasterror_ipv6", c->Err_IPv6_GetMyIp);
	PackAddBool(req, "use_azure", use_azure);
	PackAddStr(req, "product_str", CEDAR_PRODUCT_STR);
	PackAddInt(req, "ddns_protocol_version", DDNS_VERSION);


	if (use_azure)
	{
		Debug("current_azure_ip = %s\n", current_azure_ip);
		PackAddStr(req, "current_azure_ip", current_azure_ip);
	}

	HashSha1(key_hash, key_str, StrLen(key_str));
	BinToStr(key_hash_str, sizeof(key_hash_str), key_hash, sizeof(key_hash));
	StrLower(key_hash_str);

	if (p != NULL)
	{
		if (IsEmptyStr(p->NewHostname) == false)
		{
			PackAddStr(req, "new_hostname", p->NewHostname);
		}
	}



	cert_hash = StrToBin(DDNS_CERT_HASH);

	Format(url2, sizeof(url2), "%s?v=%I64u", url, Rand64());
	Format(url3, sizeof(url3), url2, key_hash_str[0], key_hash_str[1], key_hash_str[2], key_hash_str[3]);

	if (use_https == false)
	{
		ReplaceStr(url3, sizeof(url3), url3, "https://", "http://");
	}

	ReplaceStr(url3, sizeof(url3), url3, ".servers", ".open.servers");

	Debug("WpcCall: %s\n", url3);
	ret = WpcCallEx(url3, &t, DDNS_CONNECT_TIMEOUT, DDNS_COMM_TIMEOUT, "register", req,
		NULL, NULL, ((cert_hash != NULL && cert_hash->Size == SHA1_SIZE) ? cert_hash->Buf : NULL), NULL, DDNS_RPC_MAX_RECV_SIZE);

int ldap_pvt_gethostbyname_a(
	const char *name, 
	struct hostent *resbuf,
	char **buf,
	struct hostent **result,
	int *herrno_ptr )
{
#if defined( HAVE_GETHOSTBYNAME_R )

# define NEED_SAFE_REALLOC 1   
	int r=-1;
	int buflen=BUFSTART;
	*buf = NULL;
	for(;buflen<BUFMAX;) {
		if (safe_realloc( buf, buflen )==NULL)
			return r;

#if (GETHOSTBYNAME_R_NARGS < 6)
		*result=gethostbyname_r( name, resbuf, *buf, buflen, herrno_ptr );
		r = (*result == NULL) ?  -1 : 0;
#else
		r = gethostbyname_r( name, resbuf, *buf,
			buflen, result, herrno_ptr );
#endif

		Debug( LDAP_DEBUG_TRACE, "ldap_pvt_gethostbyname_a: host=%s, r=%d\n",
		       name, r, 0 );

#ifdef NETDB_INTERNAL
		if ((r<0) &&
			(*herrno_ptr==NETDB_INTERNAL) &&
			(errno==ERANGE))
		{
			buflen*=2;
			continue;
	 	}
#endif
		return r;
	}
	return -1;
#elif defined( LDAP_R_COMPILE )
# define NEED_COPY_HOSTENT   
	struct hostent *he;
	int	retval;
	*buf = NULL;
	
	ldap_pvt_thread_mutex_lock( &ldap_int_resolv_mutex );
	
	he = gethostbyname( name );
	
	if (he==NULL) {
		*herrno_ptr = h_errno;
		retval = -1;
	} else if (copy_hostent( resbuf, buf, he )<0) {
		*herrno_ptr = -1;
		retval = -1;
	} else {
		*result = resbuf;
		retval = 0;
	}
	
	ldap_pvt_thread_mutex_unlock( &ldap_int_resolv_mutex );
	
	return retval;
#else	
	*buf = NULL;
	*result = gethostbyname( name );

	if (*result!=NULL) {
		return 0;
	}

	*herrno_ptr = h_errno;
	
	return -1;
#endif	
}

int
wt_back_initialize( BackendInfo *bi )
{
	static char *controls[] = {
		LDAP_CONTROL_ASSERT,
		LDAP_CONTROL_MANAGEDSAIT,
		LDAP_CONTROL_NOOP,
		LDAP_CONTROL_PAGEDRESULTS,
		LDAP_CONTROL_PRE_READ,
		LDAP_CONTROL_POST_READ,
		LDAP_CONTROL_SUBENTRIES,
		LDAP_CONTROL_X_PERMISSIVE_MODIFY,
		NULL
	};

	/* initialize the database system */
	Debug( LDAP_DEBUG_TRACE,
		   LDAP_XSTRING(wt_back_initialize)
		   ": initialize WiredTiger backend\n",
		   0, 0, 0 );

	bi->bi_flags |=
		SLAP_BFLAG_INCREMENT |
		SLAP_BFLAG_SUBENTRIES |
		SLAP_BFLAG_ALIASES |
		SLAP_BFLAG_REFERRALS;

	bi->bi_controls = controls;

	{ /* version check */
		Debug( LDAP_DEBUG_TRACE,
			   LDAP_XSTRING(wt_back_initialize) ": %s\n",
			   wiredtiger_version(NULL, NULL, NULL), 0, 0 );
	}

	bi->bi_open = 0;
	bi->bi_close = 0;
	bi->bi_config = 0;
	bi->bi_destroy = 0;

	bi->bi_db_init = wt_db_init;
	bi->bi_db_config = config_generic_wrapper;
	bi->bi_db_open = wt_db_open;
	bi->bi_db_close = wt_db_close;
	bi->bi_db_destroy = wt_db_destroy;

	bi->bi_op_add = wt_add;
	bi->bi_op_bind = wt_bind;
	bi->bi_op_unbind = 0;
	bi->bi_op_search = wt_search;
	bi->bi_op_compare = wt_compare;
	bi->bi_op_modify = wt_modify;
	bi->bi_op_modrdn = 0;
	bi->bi_op_delete = wt_delete;
	bi->bi_op_abandon = 0;

	bi->bi_extended = 0;

	bi->bi_chk_referrals = 0;
	bi->bi_operational = wt_operational;

	bi->bi_entry_release_rw = wt_entry_release;
	bi->bi_entry_get_rw = wt_entry_get;

	bi->bi_tool_entry_open = wt_tool_entry_open;
	bi->bi_tool_entry_close = wt_tool_entry_close;
	bi->bi_tool_entry_first = backend_tool_entry_first;
	bi->bi_tool_entry_first_x = wt_tool_entry_first_x;
	bi->bi_tool_entry_next = wt_tool_entry_next;
	bi->bi_tool_entry_get = wt_tool_entry_get;
	bi->bi_tool_entry_put = wt_tool_entry_put;
	bi->bi_tool_entry_reindex = wt_tool_entry_reindex;

	bi->bi_connection_init = 0;
	bi->bi_connection_destroy = 0;

	return wt_back_init_cf( bi );
}

int
monitor_subsys_rww_init(
	BackendDB		*be,
	monitor_subsys_t	*ms )
{
	monitor_info_t	*mi;
	
	Entry		**ep, *e_conn;
	monitor_entry_t	*mp;
	int			i;

	assert( be != NULL );

	ms->mss_destroy = monitor_subsys_rww_destroy;
	ms->mss_update = monitor_subsys_rww_update;

	mi = ( monitor_info_t * )be->be_private;

	if ( monitor_cache_get( mi, &ms->mss_ndn, &e_conn ) ) {
		Debug( LDAP_DEBUG_ANY,
			"monitor_subsys_rww_init: "
			"unable to get entry \"%s\"\n",
			ms->mss_ndn.bv_val );
		return( -1 );
	}

	mp = ( monitor_entry_t * )e_conn->e_private;
	mp->mp_children = NULL;
	ep = &mp->mp_children;

	for ( i = 0; i < MONITOR_RWW_LAST; i++ ) {
		struct berval		nrdn, bv;
		Entry			*e;
		
		e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &monitor_rww[i].rdn,
			mi->mi_oc_monitorCounterObject, NULL, NULL );
		if ( e == NULL ) {
			Debug( LDAP_DEBUG_ANY,
				"monitor_subsys_rww_init: "
				"unable to create entry \"cn=Read,%s\"\n",
				ms->mss_ndn.bv_val );
			return( -1 );
		}

		/* steal normalized RDN */
		dnRdn( &e->e_nname, &nrdn );
		ber_dupbv( &monitor_rww[ i ].nrdn, &nrdn );
	
		BER_BVSTR( &bv, "0" );
		attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
	
		mp = monitor_entrypriv_create();
		if ( mp == NULL ) {
			return -1;
		}
		e->e_private = ( void * )mp;
		mp->mp_info = ms;
		mp->mp_flags = ms->mss_flags \
			| MONITOR_F_SUB | MONITOR_F_PERSISTENT;

		if ( monitor_cache_add( mi, e ) ) {
			Debug( LDAP_DEBUG_ANY,
				"monitor_subsys_rww_init: "
				"unable to add entry \"%s,%s\"\n",
				monitor_rww[ i ].rdn.bv_val,
				ms->mss_ndn.bv_val );
			return( -1 );
		}
	
		*ep = e;
		ep = &mp->mp_next;
	}

	monitor_cache_release( mi, e_conn );

	return( 0 );
}

static int
proxyOld_parse(
	Operation *op,
	SlapReply *rs,
	LDAPControl *ctrl )
{
	int rc;
	BerElement	*ber;
	ber_tag_t	tag;
	struct berval dn = BER_BVNULL;
	struct berval authzDN = BER_BVNULL;


	/* We hijack the flag for the new control. Clearly only one or the
	 * other can be used at any given time.
	 */
	if ( op->o_proxy_authz != SLAP_CONTROL_NONE ) {
		rs->sr_text = "proxy authorization control specified multiple times";
		return LDAP_PROTOCOL_ERROR;
	}

	op->o_proxy_authz = ctrl->ldctl_iscritical
		? SLAP_CONTROL_CRITICAL
		: SLAP_CONTROL_NONCRITICAL;

	/* Parse the control value
	 *  proxyAuthzControlValue ::= SEQUENCE {
	 *		proxyDN	LDAPDN
	 *	}
	 */
	ber = ber_init( &ctrl->ldctl_value );
	if ( ber == NULL ) {
		rs->sr_text = "ber_init failed";
		return LDAP_OTHER;
	}

	tag = ber_scanf( ber, "{m}", &dn );

	if ( tag == LBER_ERROR ) {
		rs->sr_text = "proxyOld control could not be decoded";
		rc = LDAP_OTHER;
		goto done;
	}
	if ( BER_BVISEMPTY( &dn )) {
		Debug( LDAP_DEBUG_TRACE,
			"proxyOld_parse: conn=%lu anonymous\n",
				op->o_connid, 0, 0 );
		authzDN.bv_val = ch_strdup("");
	} else {
		Debug( LDAP_DEBUG_ARGS,
			"proxyOld_parse: conn %lu ctrl DN=\"%s\"\n",
				op->o_connid, dn.bv_val, 0 );
		rc = dnNormalize( 0, NULL, NULL, &dn, &authzDN, op->o_tmpmemctx );
		if ( rc != LDAP_SUCCESS ) {
			goto done;
		}
		rc = slap_sasl_authorized( op, &op->o_ndn, &authzDN );
		if ( rc ) {
			op->o_tmpfree( authzDN.bv_val, op->o_tmpmemctx );
			rs->sr_text = "not authorized to assume identity";
			/* new spec uses LDAP_PROXY_AUTHZ_FAILURE */
			rc = LDAP_INSUFFICIENT_ACCESS;
			goto done;
		}
	}
	free( op->o_ndn.bv_val );
	free( op->o_dn.bv_val );
	op->o_ndn = authzDN;
	ber_dupbv( &op->o_dn, &authzDN );

	Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu PROXYOLD dn=\"%s\"\n",
		op->o_connid, op->o_opid,
		authzDN.bv_len ? authzDN.bv_val : "anonymous", 0, 0 );
	rc = LDAP_SUCCESS;
done:
	ber_free( ber, 1 );
	return rc;
}

int
get_filter(
	Operation *op,
	BerElement *ber,
	Filter **filt,
	const char **text )
{
	ber_tag_t	tag;
	ber_len_t	len;
	int		err;
	Filter		f;

	Debug( LDAP_DEBUG_FILTER, "begin get_filter\n" );
	/*
	 * A filter looks like this coming in:
	 *	Filter ::= CHOICE {
	 *		and		[0]	SET OF Filter,
	 *		or		[1]	SET OF Filter,
	 *		not		[2]	Filter,
	 *		equalityMatch	[3]	AttributeValueAssertion,
	 *		substrings	[4]	SubstringFilter,
	 *		greaterOrEqual	[5]	AttributeValueAssertion,
	 *		lessOrEqual	[6]	AttributeValueAssertion,
	 *		present		[7]	AttributeType,
	 *		approxMatch	[8]	AttributeValueAssertion,
	 *		extensibleMatch [9]	MatchingRuleAssertion
	 *	}
	 *
	 *	SubstringFilter ::= SEQUENCE {
	 *		type		   AttributeType,
	 *		SEQUENCE OF CHOICE {
	 *			initial		 [0] IA5String,
	 *			any		 [1] IA5String,
	 *			final		 [2] IA5String
	 *		}
	 *	}
	 *
	 *	MatchingRuleAssertion ::= SEQUENCE {
	 *		matchingRule	[1] MatchingRuleId OPTIONAL,
	 *		type		[2] AttributeDescription OPTIONAL,
	 *		matchValue	[3] AssertionValue,
	 *		dnAttributes	[4] BOOLEAN DEFAULT FALSE
	 *	}
	 *
	 */

	tag = ber_peek_tag( ber, &len );

	if( tag == LBER_ERROR ) {
		*text = "error decoding filter";
		return SLAPD_DISCONNECT;
	}

	err = LDAP_SUCCESS;

	f.f_next = NULL;
	f.f_choice = tag;

	switch ( f.f_choice ) {
	case LDAP_FILTER_EQUALITY:
		Debug( LDAP_DEBUG_FILTER, "EQUALITY\n" );
		err = get_ava( op, ber, &f, SLAP_MR_EQUALITY, text );
		if ( err != LDAP_SUCCESS ) {
			break;
		}

		assert( f.f_ava != NULL );
		break;

	case LDAP_FILTER_SUBSTRINGS:
		Debug( LDAP_DEBUG_FILTER, "SUBSTRINGS\n" );
		err = get_ssa( op, ber, &f, text );
		if( err != LDAP_SUCCESS ) {
			break;
		}
		assert( f.f_sub != NULL );
		break;

	case LDAP_FILTER_GE:
		Debug( LDAP_DEBUG_FILTER, "GE\n" );
		err = get_ava( op, ber, &f, SLAP_MR_ORDERING, text );
		if ( err != LDAP_SUCCESS ) {
			break;
		}
		assert( f.f_ava != NULL );
		break;

	case LDAP_FILTER_LE:
		Debug( LDAP_DEBUG_FILTER, "LE\n" );
		err = get_ava( op, ber, &f, SLAP_MR_ORDERING, text );
		if ( err != LDAP_SUCCESS ) {
			break;
		}
		assert( f.f_ava != NULL );
		break;

	case LDAP_FILTER_PRESENT: {
		struct berval type;

		Debug( LDAP_DEBUG_FILTER, "PRESENT\n" );
//.........這裏部分代碼省略.........

void CAppBase::Render()
{
//	SDL_SysWMinfo wmi = { 0 };
//	SDL_GetWMInfo(&wmi);
//	SetWindowPos(wmi.window, HWND_TOPMOST, NULL, NULL, NULL, NULL, SWP_NOREPOSITION |SWP_NOSIZE);

	CCamera Camera;
	Camera.SetViewportDims(CVec2i(GetVideo()->GetWidth(), GetVideo()->GetHeight()));
	GetRender()->SetCamera(&Camera);
	
	CVec3f vDirection;
	vDirection.Point(g_fAzimuth, g_fElevation);
	Camera.SetDirection(-vDirection);
	
	CVec3f vPosition(0,0,0);
	vDirection *= g_fZoom;
	Camera.SetPosition(vPosition+vDirection+CVec3f(160,0,160));
//	Camera.SetFOV(60.0f);
//	Camera.SetAspectRatio(4.0f/3.0f);
	static ITube* s_pTube = NULL;
	if ( !s_pTube )
	{
		s_pTube = ITube::Create();
		s_pTube->SetShader("shaders/tube.shader");
		CVec3f vPoint(0,0,0);
		for ( int i = 0 ; i < 100 ; ++i )
		{
			s_pTube->AddControlPoint(CVec3f(160+20.0f*sin(float(i)/10.0f), i, (160+20.0f*cos(float(i)/10.0f))));
		}
	}

	GetRender()->BeginProjection(eProjectionPerspective);
	{
		GetRender()->BeginRenderPass(eRenderPassAccum);
		{
			GetScene()->Render3d();
			GetRender()->RenderTube(s_pTube);
		}
		GetRender()->EndRenderPass(eRenderPassAccum);

		GetRender()->BeginRenderPass(eRenderPassNormal);
		{
			GetScene()->Render3d();
			GetRender()->RenderTube(s_pTube);

			static bool once = true;
			static CVec3f vSrc;
			static CVec3f vDest;
//				if ( once )
			{
				vSrc = GetRender()->Unproject(NULL, g_vMousePos, 10.0f);
				vDest = GetRender()->Unproject(NULL, g_vMousePos, 10000.0f);
				once=false;
			}

			CVec3f vDir = vDest-vSrc; vDir.Normalize();
			IObject* pObject = NULL;
			if ( pObject = GetScene()->PickObject(vSrc, vDir) )
			{
				Debug("Picked %s", pObject->GetClass()->GetClassDef()->GetName().c_str());
			}

			CPlane3f plane(CVec3f(0,1,0), 0.0f);
			if ( plane.IntersectRay(CRay3f(vSrc, vDir), &g_vCursor3d) )
			{
//				Debug("x,y,z = %f,%f,%f", g_vCursor3d.x, g_vCursor3d.y, g_vCursor3d.z);
			}
			else
			{
//				Debug("...");
			}

//				GetRender()->RenderLine(CVec3f(160,0,160), vDest, CRGBA(255,255,0,255));
//				GetRender()->RenderLine(CVec3f(0,0,0), vDest, CRGBA(0,255,0,255));
//				GetRender()->RenderModelSkinned(&s_ModelSkinned);
		}
		GetRender()->EndRenderPass(eRenderPassNormal);
	}
	GetRender()->EndProjection(eProjectionPerspective);
	GetRender()->BeginProjection(eProjectionOrtho);
	{
		GetUi()->Render();
	}
	GetRender()->EndProjection(eProjectionOrtho);

	GetRender()->SetCamera(NULL);

	GetRender()->Swap();
}

static void
engine_loop(struct Generators *gen)
{
  struct epoll_event *events;
  struct Socket *sock;
  size_t codesize;
  int events_count, i, wait, nevs, errcode;

  if ((events_count = feature_int(FEAT_POLLS_PER_LOOP)) < 20)
    events_count = 20;
  events = MyMalloc(sizeof(events[0]) * events_count);
  while (running) {
    if ((i = feature_int(FEAT_POLLS_PER_LOOP)) >= 20 && i != events_count) {
      events = MyRealloc(events, sizeof(events[0]) * i);
      events_count = i;
    }

    wait = timer_next(gen) ? (timer_next(gen) - CurrentTime) * 1000 : -1;
    Debug((DEBUG_INFO, "epoll: delay: %d (%d) %d", timer_next(gen),
           CurrentTime, wait));
    nevs = epoll_wait(epoll_fd, events, events_count, wait);
    CurrentTime = time(0);

    if (nevs < 0) {
      if (errno != EINTR) {
        log_write(LS_SOCKET, L_ERROR, 0, "epoll() error: %m");
        if (!errors++)
          timer_add(timer_init(&clear_error), error_clear, 0, TT_PERIODIC,
                    ERROR_EXPIRE_TIME);
        else if (errors > EPOLL_ERROR_THRESHOLD)
          server_restart("too many epoll errors");
      }
      continue;
    }

    for (i = 0; i < nevs; i++) {
      if (!(sock = events[i].data.ptr))
        continue;
      gen_ref_inc(sock);
      Debug((DEBUG_ENGINE,
             "epoll: Checking socket %p (fd %d) state %s, events %s",
             sock, s_fd(sock), state_to_name(s_state(sock)),
             sock_flags(s_events(sock))));

      if (events[i].events & EPOLLERR) {
        errcode = 0;
        codesize = sizeof(errcode);
        if (getsockopt(s_fd(sock), SOL_SOCKET, SO_ERROR, &errcode,
                       &codesize) < 0)
          errcode = errno;
        if (errcode) {
          event_generate(ET_ERROR, sock, errcode);
          gen_ref_dec(sock);
          continue;
        }
      }

      switch (s_state(sock)) {
      case SS_CONNECTING:
        if (events[i].events & EPOLLOUT) /* connection completed */
          event_generate(ET_CONNECT, sock, 0);
        break;

      case SS_LISTENING:
        if (events[i].events & EPOLLIN) /* incoming connection */
          event_generate(ET_ACCEPT, sock, 0);
        break;

      case SS_NOTSOCK:
      case SS_CONNECTED:
        if (events[i].events & EPOLLIN)
          event_generate((events[i].events & EPOLLHUP) ? ET_EOF : ET_READ, sock, 0);
        if (events[i].events & EPOLLOUT)
          event_generate(ET_WRITE, sock, 0);
        break;

      case SS_DATAGRAM:
      case SS_CONNECTDG:
        if (events[i].events & EPOLLIN)
          event_generate(ET_READ, sock, 0);
        if (events[i].events & EPOLLOUT)
          event_generate(ET_WRITE, sock, 0);
        break;
      }
      gen_ref_dec(sock);
    }
    timer_run();
  }
}

int
backsql_id2entry( backsql_srch_info *bsi, backsql_entryID *eid )
{
	Operation		*op = bsi->bsi_op;
	backsql_info		*bi = (backsql_info *)op->o_bd->be_private;
	int			i;
	int			rc;

	Debug( LDAP_DEBUG_TRACE, "==>backsql_id2entry()\n" );

	assert( bsi->bsi_e != NULL );

	memset( bsi->bsi_e, 0, sizeof( Entry ) );

	if ( bi->sql_baseObject && BACKSQL_IS_BASEOBJECT_ID( &eid->eid_id ) ) {
		(void)entry_dup2( bsi->bsi_e, bi->sql_baseObject );
		goto done;
	}

	bsi->bsi_e->e_attrs = NULL;
	bsi->bsi_e->e_private = NULL;

	if ( eid->eid_oc == NULL ) {
		eid->eid_oc = backsql_id2oc( bsi->bsi_op->o_bd->be_private,
			eid->eid_oc_id );
		if ( eid->eid_oc == NULL ) {
			Debug( LDAP_DEBUG_TRACE,
				"backsql_id2entry(): unable to fetch objectClass with id=" BACKSQL_IDNUMFMT " for entry id=" BACKSQL_IDFMT " dn=\"%s\"\n",
				eid->eid_oc_id, BACKSQL_IDARG(eid->eid_id),
				eid->eid_dn.bv_val );
			return LDAP_OTHER;
		}
	}
	bsi->bsi_oc = eid->eid_oc;
	bsi->bsi_c_eid = eid;

	ber_dupbv_x( &bsi->bsi_e->e_name, &eid->eid_dn, op->o_tmpmemctx );
	ber_dupbv_x( &bsi->bsi_e->e_nname, &eid->eid_ndn, op->o_tmpmemctx );

#ifndef BACKSQL_ARBITRARY_KEY	
	/* FIXME: unused */
	bsi->bsi_e->e_id = eid->eid_id;
#endif /* ! BACKSQL_ARBITRARY_KEY */
 
	rc = attr_merge_normalize_one( bsi->bsi_e,
			slap_schema.si_ad_objectClass,
			&bsi->bsi_oc->bom_oc->soc_cname,
			bsi->bsi_op->o_tmpmemctx );
	if ( rc != LDAP_SUCCESS ) {
		backsql_entry_clean( op, bsi->bsi_e );
		return rc;
	}

	if ( bsi->bsi_attrs == NULL || ( bsi->bsi_flags & BSQL_SF_ALL_USER ) )
	{
		Debug( LDAP_DEBUG_TRACE, "backsql_id2entry(): "
			"retrieving all attributes\n" );
		avl_apply( bsi->bsi_oc->bom_attrs, backsql_get_attr_vals,
				bsi, 0, AVL_INORDER );

	} else {
		Debug( LDAP_DEBUG_TRACE, "backsql_id2entry(): "
			"custom attribute list\n" );
		for ( i = 0; !BER_BVISNULL( &bsi->bsi_attrs[ i ].an_name ); i++ ) {
			backsql_at_map_rec	**vat;
			AttributeName		*an = &bsi->bsi_attrs[ i ];
			int			j;

			/* if one of the attributes listed here is
			 * a subtype of another, it must be ignored,
			 * because subtypes are already dealt with
			 * by backsql_supad2at()
			 */
			for ( j = 0; !BER_BVISNULL( &bsi->bsi_attrs[ j ].an_name ); j++ ) {
				/* skip self */
				if ( j == i ) {
					continue;
				}

				/* skip subtypes */
				if ( is_at_subtype( an->an_desc->ad_type,
							bsi->bsi_attrs[ j ].an_desc->ad_type ) )
				{
					goto next;
				}
			}

			rc = backsql_supad2at( bsi->bsi_oc, an->an_desc, &vat );
			if ( rc != 0 || vat == NULL ) {
				Debug( LDAP_DEBUG_TRACE, "backsql_id2entry(): "
						"attribute \"%s\" is not defined "
						"for objectclass \"%s\"\n",
						an->an_name.bv_val, 
						BACKSQL_OC_NAME( bsi->bsi_oc ) );
				continue;
			}

			for ( j = 0; vat[j]; j++ ) {
    				backsql_get_attr_vals( vat[j], bsi );
			}
//.........這裏部分代碼省略.........

static int
backsql_get_attr_vals( void *v_at, void *v_bsi )
{
	backsql_at_map_rec	*at = v_at;
	backsql_srch_info	*bsi = v_bsi;
	backsql_info		*bi;
	RETCODE			rc;
	SQLHSTMT		sth = SQL_NULL_HSTMT;
	BACKSQL_ROW_NTS		row;
	unsigned long		i,
				k = 0,
				oldcount = 0,
				res = 0;
#ifdef BACKSQL_COUNTQUERY
	unsigned 		count,
				j,
				append = 0;
	SQLLEN			countsize = sizeof( count );
	Attribute		*attr = NULL;

	slap_mr_normalize_func		*normfunc = NULL;
#endif /* BACKSQL_COUNTQUERY */
#ifdef BACKSQL_PRETTY_VALIDATE
	slap_syntax_validate_func	*validate = NULL;
	slap_syntax_transform_func	*pretty = NULL;
#endif /* BACKSQL_PRETTY_VALIDATE */

	assert( at != NULL );
	assert( bsi != NULL );
	Debug( LDAP_DEBUG_TRACE, "==>backsql_get_attr_vals(): "
		"oc=\"%s\" attr=\"%s\" keyval=" BACKSQL_IDFMT "\n",
		BACKSQL_OC_NAME( bsi->bsi_oc ), at->bam_ad->ad_cname.bv_val, 
		BACKSQL_IDARG(bsi->bsi_c_eid->eid_keyval) );

	bi = (backsql_info *)bsi->bsi_op->o_bd->be_private;

#ifdef BACKSQL_PRETTY_VALIDATE
	validate = at->bam_true_ad->ad_type->sat_syntax->ssyn_validate;
	pretty =  at->bam_true_ad->ad_type->sat_syntax->ssyn_pretty;

	if ( validate == NULL && pretty == NULL ) {
		return 1;
	}
#endif /* BACKSQL_PRETTY_VALIDATE */

#ifdef BACKSQL_COUNTQUERY
	if ( at->bam_true_ad->ad_type->sat_equality ) {
		normfunc = at->bam_true_ad->ad_type->sat_equality->smr_normalize;
	}

	/* Count how many rows will be returned. This avoids memory 
	 * fragmentation that can result from loading the values in 
	 * one by one and using realloc() 
	 */
	rc = backsql_Prepare( bsi->bsi_dbh, &sth, at->bam_countquery, 0 );
	if ( rc != SQL_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, "backsql_get_attr_vals(): "
			"error preparing count query: %s\n",
			at->bam_countquery );
		backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh, sth, rc );
		return 1;
	}

	rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT,
			&bsi->bsi_c_eid->eid_keyval );
	if ( rc != SQL_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, "backsql_get_attr_vals(): "
			"error binding key value parameter\n" );
		SQLFreeStmt( sth, SQL_DROP );
		return 1;
	}

	rc = SQLExecute( sth );
	if ( ! BACKSQL_SUCCESS( rc ) ) {
		Debug( LDAP_DEBUG_TRACE, "backsql_get_attr_vals(): "
			"error executing attribute count query '%s'\n",
			at->bam_countquery );
		backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh, sth, rc );
		SQLFreeStmt( sth, SQL_DROP );
		return 1;
	}

	SQLBindCol( sth, (SQLUSMALLINT)1, SQL_C_LONG,
			(SQLPOINTER)&count,
			(SQLINTEGER)sizeof( count ),
			&countsize );

	rc = SQLFetch( sth );
	if ( rc != SQL_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, "backsql_get_attr_vals(): "
			"error fetch results of count query: %s\n",
			at->bam_countquery );
		backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh, sth, rc );
		SQLFreeStmt( sth, SQL_DROP );
		return 1;
	}

	Debug( LDAP_DEBUG_TRACE, "backsql_get_attr_vals(): "
		"number of values in query: %u\n", count );
	SQLFreeStmt( sth, SQL_DROP );
//.........這裏部分代碼省略.........

int
backsql_count_children(
	Operation		*op,
	SQLHDBC			dbh,
	struct berval		*dn,
	unsigned long		*nchildren )
{
	backsql_info 		*bi = (backsql_info *)op->o_bd->be_private;
	SQLHSTMT		sth = SQL_NULL_HSTMT;
	BACKSQL_ROW_NTS		row;
	RETCODE 		rc;
	int			res = LDAP_SUCCESS;

	Debug( LDAP_DEBUG_TRACE, "==>backsql_count_children(): dn=\"%s\"\n", 
			dn->bv_val );

	if ( dn->bv_len > BACKSQL_MAX_DN_LEN ) {
		Debug( LDAP_DEBUG_TRACE, 
			"backsql_count_children(): DN \"%s\" (%ld bytes) "
			"exceeds max DN length (%d):\n",
			dn->bv_val, dn->bv_len, BACKSQL_MAX_DN_LEN );
		return LDAP_OTHER;
	}
	
	/* begin TimesTen */
	assert( bi->sql_has_children_query != NULL );
	Debug(LDAP_DEBUG_TRACE, "children id query \"%s\"\n", 
			bi->sql_has_children_query );
 	rc = backsql_Prepare( dbh, &sth, bi->sql_has_children_query, 0 );
	if ( rc != SQL_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, 
			"backsql_count_children(): error preparing SQL:\n%s", 
			bi->sql_has_children_query );
		backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
		SQLFreeStmt( sth, SQL_DROP );
		return LDAP_OTHER;
	}

	rc = backsql_BindParamBerVal( sth, 1, SQL_PARAM_INPUT, dn );
	if ( rc != SQL_SUCCESS) {
		/* end TimesTen */ 
		Debug( LDAP_DEBUG_TRACE, "backsql_count_children(): "
			"error binding dn=\"%s\" parameter:\n", 
			dn->bv_val );
		backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
		SQLFreeStmt( sth, SQL_DROP );
		return LDAP_OTHER;
	}

	rc = SQLExecute( sth );
	if ( rc != SQL_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, "backsql_count_children(): "
			"error executing query (\"%s\", \"%s\"):\n", 
			bi->sql_has_children_query, dn->bv_val );
		backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
		SQLFreeStmt( sth, SQL_DROP );
		return LDAP_OTHER;
	}

	backsql_BindRowAsStrings_x( sth, &row, op->o_tmpmemctx );
	
	rc = SQLFetch( sth );
	if ( BACKSQL_SUCCESS( rc ) ) {
		char *end;

		*nchildren = strtol( row.cols[ 0 ], &end, 0 );
		if ( end == row.cols[ 0 ] ) {
			res = LDAP_OTHER;

		} else {
			switch ( end[ 0 ] ) {
			case '\0':
				break;

			case '.': {
				unsigned long	ul;

				/* FIXME: braindead RDBMSes return
				 * a fractional number from COUNT!
				 */
				if ( lutil_atoul( &ul, end + 1 ) != 0 || ul != 0 ) {
					res = LDAP_OTHER;
				}
				} break;

			default:
				res = LDAP_OTHER;
			}
		}

	} else {
		res = LDAP_OTHER;
	}
	backsql_FreeRow_x( &row, op->o_tmpmemctx );

	SQLFreeStmt( sth, SQL_DROP );

	Debug( LDAP_DEBUG_TRACE, "<==backsql_count_children(): %lu\n",
			*nchildren );

//.........這裏部分代碼省略.........

void *VideoStream::StreamingThreadCallback(void *ctx){
	
	Debug( 1, "StreamingThreadCallback started" );
	
    if (ctx == NULL) return NULL;

    VideoStream* videoStream = reinterpret_cast<VideoStream*>(ctx);
	
	const uint64_t nanosecond_multiplier = 1000000000;
	
	uint64_t target_interval_ns = nanosecond_multiplier * ( ((double)videoStream->ost->codec->time_base.num) / (videoStream->ost->codec->time_base.den) );
	uint64_t frame_count = 0;
	timespec start_time;
	clock_gettime(CLOCK_MONOTONIC, &start_time);
	uint64_t start_time_ns = (start_time.tv_sec*nanosecond_multiplier) + start_time.tv_nsec;
	while(videoStream->do_streaming)
	{
		timespec current_time;
		clock_gettime(CLOCK_MONOTONIC, &current_time);
		uint64_t current_time_ns = (current_time.tv_sec*nanosecond_multiplier) + current_time.tv_nsec;
		uint64_t target_ns = start_time_ns + (target_interval_ns * frame_count);
		
		if ( current_time_ns < target_ns )
		{
			// It's not time to render a frame yet.
			usleep( (target_ns - current_time_ns) * 0.001 );
		}
        
        // By sending the last rendered frame we deliver frames to the client more accurate.
        // If we're encoding the frame before sending it there will be lag.
        // Since this lag is not constant the client may skip frames.
        
        // Get the last rendered packet.
        AVPacket *packet = videoStream->packet_buffers[videoStream->packet_index];
        if (packet->size) {
            videoStream->SendPacket(packet);
        }
        av_free_packet(packet);
        videoStream->packet_index = videoStream->packet_index ? 0 : 1;
        
		// Lock buffer and render next frame.
        
		if ( pthread_mutex_lock( videoStream->buffer_copy_lock ) != 0 )
		{
			Fatal( "StreamingThreadCallback: pthread_mutex_lock failed." );
		}
		
		if ( videoStream->buffer_copy )
		{
			// Encode next frame.
			videoStream->ActuallyEncodeFrame( videoStream->buffer_copy, videoStream->buffer_copy_used, videoStream->add_timestamp, videoStream->timestamp );
		}
	
		if ( pthread_mutex_unlock( videoStream->buffer_copy_lock ) != 0 )
		{
			Fatal( "StreamingThreadCallback: pthread_mutex_unlock failed." );
		}
		
		frame_count++;
	}
	
	return 0;
}