xref: /illumos-gate/usr/src/cmd/rcap/common/rcapd_stat.h (revision fe4627ef755b7c263f91a0e6f07cdca5d7083501)
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 #ifndef	_RCAPD_STAT_H
27 #define	_RCAPD_STAT_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 /*
36  * Default path to statistics file
37  */
38 #define	STAT_FILE_DIR	"/var/run/daemon"
39 #define	STAT_FILE_DEFAULT	STAT_FILE_DIR	"/rcap.stat"
40 
41 /*
42  * Statistics file header.
43  */
44 #define	RC_MODE_LEN	16
45 typedef struct rcapd_stat_hdr {
46 	/*
47 	 * sizeof pid_t can vary, so we use a fixed 64-bit quantity.
48 	 */
49 	uint64_t	rs_pid;			/* pid of producer */
50 	hrtime_t	rs_time;		/* time recorded */
51 
52 	/*
53 	 * Physical memory pressure statistics, in percent.
54 	 */
55 	uint32_t	rs_pressure_cur;	/* current memory pressure */
56 	uint32_t	rs_pressure_cap;	/* minimum cap enforcement p. */
57 
58 	uint64_t	rs_pressure_sample;	/* count of pr. samplings */
59 	char		rs_mode[RC_MODE_LEN];	/* mode ("project" only) */
60 } rcapd_stat_hdr_t;
61 
62 extern pid_t stat_get_rcapd_pid(char *);
63 
64 #ifdef	__cplusplus
65 }
66 #endif
67 
68 #endif	/* _RCAPD_STAT_H */
69