xref: /illumos-gate/usr/src/cmd/rcap/rcapd/rcapd_collection_zone.c (revision bd97c7ce2344fa3252d8785c35895490916bc79b)
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 #include <procfs.h>
27 #include <project.h>
28 #include <stdlib.h>
29 #include <strings.h>
30 #include <zone.h>
31 #include <libzonecfg.h>
32 #include "rcapd.h"
33 #include "utils.h"
34 
35 extern boolean_t gz_capped;
36 
37 				/* round up to next y = 2^n */
38 #define	ROUNDUP(x, y)		(((x) + ((y) - 1)) & ~((y) - 1))
39 
40 static void
41 update_zone(zone_entry_t *zent, void *walk_data)
42 {
43 	void(*update_notification_cb)(char *, char *, int, uint64_t, int) =
44 	    (void(*)(char *, char *, int, uint64_t, int))walk_data;
45 	int changes;
46 	int64_t max_rss;
47 	uint64_t mcap;
48 	lcollection_t *lcol;
49 	rcid_t colid;
50 
51 	if (zone_getattr(zent->zid, ZONE_ATTR_PHYS_MCAP, &mcap,
52 	    sizeof (mcap)) != -1 && mcap != 0)
53 		max_rss = ROUNDUP(mcap, 1024) / 1024;
54 	else
55 		max_rss = 0;
56 
57 	if (zent->zid == GLOBAL_ZONEID) {
58 		if (max_rss > 0)
59 			gz_capped = B_TRUE;
60 		else
61 			gz_capped = B_FALSE;
62 	}
63 
64 
65 	colid.rcid_type = RCIDT_ZONE;
66 	colid.rcid_val = zent->zid;
67 
68 	lcol = lcollection_insert_update(&colid, max_rss, zent->zname,
69 	    &changes);
70 	if (update_notification_cb != NULL)
71 		update_notification_cb("zone", zent->zname, changes, max_rss,
72 		    (lcol != NULL) ? lcol->lcol_mark : 0);
73 }
74 
75 
76 /* ARGSUSED */
77 void
78 lcollection_update_zone(lcollection_update_type_t ut,
79     void(*update_notification_cb)(char *, char *, int, uint64_t, int))
80 {
81 	int i;
82 	uint_t nzents;
83 	zone_entry_t *zents;
84 
85 	/*
86 	 * Enumerate running zones.
87 	 */
88 	if (get_running_zones(&nzents, &zents) != 0)
89 		return;
90 
91 	for (i = 0; i < nzents; i++) {
92 		update_zone(&zents[i], (void *)update_notification_cb);
93 
94 	}
95 
96 	free(zents);
97 }
98