song* insert_ordered(song* list, char* n, char* a) {
  if (list == NULL) {
    return insert_front(list, n, a);
  } else if (strcmp(a, list->artist) < 0) {
    return insert_front(list, n, a);
  } else if (strcmp(a, list->artist) == 0 &&
	     strcmp(n, list->name) <0) {
    return insert_front(list, n, a);
  }
  list->next = insert_ordered(list->next, n, a);
  return list;
}
Example #2
0
/**
 * Do a complete insertion of a sample into the median filter
 *
 * @param filter The median filter to insert the value into
 * @param value The value to insert
 * @return The filtered value
 */
gint median_filter_map(median_filter_struct *filter, gint value)
{
	gint filtered_value;

	/* Insert into the ordered array (deleting the oldest value) */
	filtered_value = insert_ordered(filter, value,
					filter->window[filter->oldest]);

	/* Insert into the ring buffer (overwriting the oldest value) */
	filter->window[filter->oldest] = value;
	filter->oldest = (filter->oldest + 1) % filter->window_size;

	return filtered_value;
}
Example #3
0
void reclaim_marked()
{
	struct cell* i;
	for(i= top_allocated; i >= gc_block_start ; i = i - 1)
	{
		if(i->type & MARKED)
		{
			i->type = FREE;
			i->car = NULL;
			i->cdr = NULL;
			i->env = NULL;
			free_cells = insert_ordered(i, free_cells);
		}
	}
}
Example #4
0
struct cell* insert_ordered(struct cell* i, struct cell* list)
{
	if(NULL == list)
	{
		return i;
	}

	if(i < list)
	{
		i->cdr = list;
		return i;
	}

	list->cdr = insert_ordered(i, list->cdr);
	return list;
}
Example #5
0
static int
collect_cf( ConfigArgs *c )
{
	slap_overinst *on = (slap_overinst *)c->bi;
	int rc = 1, idx;

	switch( c->op ) {
	case SLAP_CONFIG_EMIT:
		{
		collect_info *ci;
		for ( ci = on->on_bi.bi_private; ci; ci = ci->ci_next ) {
			struct berval bv;
			char *ptr;
			int len;

			/* calculate the length & malloc memory */
			bv.bv_len = ci->ci_dn.bv_len + STRLENOF("\"\" ");
			for (idx=0; idx<ci->ci_ad_num; idx++) {
				bv.bv_len += ci->ci_ad[idx]->ad_cname.bv_len;
				if (idx<(ci->ci_ad_num-1)) { 
					bv.bv_len++;
				}
			}
			bv.bv_val = ch_malloc( bv.bv_len + 1 );

			/* copy the value and update len */
			len = snprintf( bv.bv_val, bv.bv_len + 1, "\"%s\" ", 
				ci->ci_dn.bv_val);
			ptr = bv.bv_val + len;
			for (idx=0; idx<ci->ci_ad_num; idx++) {
				ptr = lutil_strncopy( ptr,
					ci->ci_ad[idx]->ad_cname.bv_val,
					ci->ci_ad[idx]->ad_cname.bv_len);
				if (idx<(ci->ci_ad_num-1)) {
					*ptr++ = ',';
				}
			}
			*ptr = '\0';
			bv.bv_len = ptr - bv.bv_val;

			ber_bvarray_add( &c->rvalue_vals, &bv );
			rc = 0;
		}
		}
		break;
	case LDAP_MOD_DELETE:
		if ( c->valx == -1 ) {
		/* Delete entire attribute */
			collect_info *ci;
			while (( ci = on->on_bi.bi_private )) {
				on->on_bi.bi_private = ci->ci_next;
				ch_free( ci->ci_dn.bv_val );
				ch_free( ci );
			}
		} else {
		/* Delete just one value */
			collect_info **cip, *ci;
			int i;
			cip = (collect_info **)&on->on_bi.bi_private;
			ci = *cip;
			for ( i=0; i < c->valx; i++ ) {
				cip = &ci->ci_next;
				ci = *cip;
			}
			*cip = ci->ci_next;
			ch_free( ci->ci_dn.bv_val );
			ch_free( ci );
		}
		rc = 0;
		break;
	case SLAP_CONFIG_ADD:
	case LDAP_MOD_ADD:
		{
		collect_info *ci;
		struct berval bv, dn;
		const char *text;
		int idx, count=0;
		char *arg;

		/* count delimiters in attribute argument */
		arg = strtok(c->argv[2], ",");
		while (arg!=NULL) {
			count++;
			arg = strtok(NULL, ",");
		}

		/* validate and normalize dn */
		ber_str2bv( c->argv[1], 0, 0, &bv );
		if ( dnNormalize( 0, NULL, NULL, &bv, &dn, NULL ) ) {
			snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid DN: \"%s\"",
				c->argv[0], c->argv[1] );
			Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
				"%s: %s\n", c->log, c->cr_msg, 0 );
			return ARG_BAD_CONF;
		}

		/* check for duplicate DNs */
		for ( ci = (collect_info *)on->on_bi.bi_private; ci;
			ci = ci->ci_next ) {
			/* If new DN is longest, there are no possible matches */
			if ( dn.bv_len > ci->ci_dn.bv_len ) {
				ci = NULL;
				break;
			}
			if ( bvmatch( &dn, &ci->ci_dn )) {
				break;
			}
		}
		if ( ci ) {
			snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s DN already configured: \"%s\"",
				c->argv[0], c->argv[1] );
			Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
				"%s: %s\n", c->log, c->cr_msg, 0 );
			return ARG_BAD_CONF;
		}

		/* allocate config info with room for attribute array */
		ci = ch_malloc( sizeof( collect_info ) +
			sizeof( AttributeDescription * ) * count );

		/* load attribute description for attribute list */
		arg = c->argv[2];
		for( idx=0; idx<count; idx++) {
			ci->ci_ad[idx] = NULL;

			if ( slap_str2ad( arg, &ci->ci_ad[idx], &text ) ) {
				snprintf( c->cr_msg, sizeof( c->cr_msg ), 
					"%s attribute description unknown: \"%s\"",
					c->argv[0], arg);
				Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
					"%s: %s\n", c->log, c->cr_msg, 0 );
				ch_free( ci );
				return ARG_BAD_CONF;
			}
			while(*arg!='\0') {
				arg++; /* skip to end of argument */
			}
			if (idx<count-1) {
				arg++; /* skip inner delimiters */
			}
		}

		/* The on->on_bi.bi_private pointer can be used for
		 * anything this instance of the overlay needs.
		 */
		ci->ci_ad[count] = NULL;
		ci->ci_ad_num = count;
		ci->ci_dn = dn;

		/* creates list of ci's ordered by dn length */ 
		insert_ordered ( on, ci );

		/* New ci wasn't simply appended to end, adjust its
		 * position in the config entry's a_vals
		 */
		if ( c->ca_entry && ci->ci_next ) {
			Attribute *a = attr_find( c->ca_entry->e_attrs,
				collectcfg[0].ad );
			if ( a ) {
				struct berval bv, nbv;
				collect_info *c2 = (collect_info *)on->on_bi.bi_private;
				int i, j;
				for ( i=0; c2 != ci; i++, c2 = c2->ci_next );
				bv = a->a_vals[a->a_numvals-1];
				nbv = a->a_nvals[a->a_numvals-1];
				for ( j=a->a_numvals-1; j>i; j-- ) {
					a->a_vals[j] = a->a_vals[j-1];
					a->a_nvals[j] = a->a_nvals[j-1];
				}
				a->a_vals[j] = bv;
				a->a_nvals[j] = nbv;
			}
		}

		rc = 0;
		}
	}
	return rc;
}