usr/src/cmd/rcap/rcapd/rcapd_collection_zone.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include <procfs.h>
  29 #include <project.h>
  30 #include <stdlib.h>
  31 #include <strings.h>
  32 #include <zone.h>
  33 #include <libzonecfg.h>
  34 #include "rcapd.h"
  35 #include "utils.h"
  36
  37 extern boolean_t gz_capped;
  38
  39                                 /* round up to next y = 2^n */
  40 #define ROUNDUP(x, y)           (((x) + ((y) - 1)) & ~((y) - 1))
  41
  42 static void
  43 update_zone(zone_entry_t *zent, void *walk_data)
  44 {
  45         void(*update_notification_cb)(char *, char *, int, uint64_t, int) =
  46             (void(*)(char *, char *, int, uint64_t, int))walk_data;
  47         int changes;
  48         int64_t max_rss;
  49         uint64_t mcap;
  50         lcollection_t *lcol;
  51         rcid_t colid;
  52
  53         if (zone_getattr(zent->zid, ZONE_ATTR_PHYS_MCAP, &mcap,
  54             sizeof (mcap)) != -1 && mcap != 0)
  55                 max_rss = ROUNDUP(mcap, 1024) / 1024;
  56         else
  57                 max_rss = 0;
  58
  59         if (zent->zid == GLOBAL_ZONEID) {
  60                 if (max_rss > 0)
  61                         gz_capped = B_TRUE;
  62                 else
  63                         gz_capped = B_FALSE;
  64         }
  65
  66
  67         colid.rcid_type = RCIDT_ZONE;
  68         colid.rcid_val = zent->zid;
  69
  70         lcol = lcollection_insert_update(&colid, max_rss, zent->zname,
  71             &changes);
  72         if (update_notification_cb != NULL)
  73                 update_notification_cb("zone", zent->zname, changes, max_rss,
  74                     (lcol != NULL) ? lcol->lcol_mark : 0);
  75 }
  76
  77
  78 /* ARGSUSED */
  79 void
  80 lcollection_update_zone(lcollection_update_type_t ut,
  81     void(*update_notification_cb)(char *, char *, int, uint64_t, int))
  82 {
  83         int i;
  84         uint_t nzents;
  85         zone_entry_t *zents;
  86
  87         /*
  88          * Enumerate running zones.
  89          */
  90         if (get_running_zones(&nzents, &zents) != 0)
  91                 return;
  92
  93         for (i = 0; i < nzents; i++) {
  94                 update_zone(&zents[i], (void *)update_notification_cb);
  95
  96         }
  97
  98         free(zents);
  99 }