| kern_acct.c (12221) | kern_acct.c (12819) |
|---|---|
| 1/*- 2 * Copyright (c) 1994 Christopher G. Demetriou 3 * Copyright (c) 1982, 1986, 1989, 1993 4 * The Regents of the University of California. All rights reserved. 5 * (c) UNIX System Laboratories, Inc. 6 * All or some portions of this file are derived from material licensed 7 * to the University of California by American Telephone and Telegraph 8 * Co. or Unix System Laboratories, Inc. and are reproduced herein with --- 23 unchanged lines hidden (view full) --- 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)kern_acct.c 8.1 (Berkeley) 6/14/93 | 1/*- 2 * Copyright (c) 1994 Christopher G. Demetriou 3 * Copyright (c) 1982, 1986, 1989, 1993 4 * The Regents of the University of California. All rights reserved. 5 * (c) UNIX System Laboratories, Inc. 6 * All or some portions of this file are derived from material licensed 7 * to the University of California by American Telephone and Telegraph 8 * Co. or Unix System Laboratories, Inc. and are reproduced herein with --- 23 unchanged lines hidden (view full) --- 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)kern_acct.c 8.1 (Berkeley) 6/14/93 |
| 40 * $Id: kern_acct.c,v 1.8 1995/10/29 15:30:56 phk Exp $ | 40 * $Id: kern_acct.c,v 1.9 1995/11/12 06:42:51 bde Exp $ |
| 41 */ 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/sysproto.h> 46#include <sys/proc.h> 47#include <sys/mount.h> 48#include <sys/vnode.h> 49#include <sys/file.h> 50#include <sys/syslog.h> 51#include <sys/kernel.h> | 41 */ 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/sysproto.h> 46#include <sys/proc.h> 47#include <sys/mount.h> 48#include <sys/vnode.h> 49#include <sys/file.h> 50#include <sys/syslog.h> 51#include <sys/kernel.h> |
| 52#include <sys/sysctl.h> |
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| 52#include <sys/namei.h> 53#include <sys/errno.h> 54#include <sys/acct.h> 55#include <sys/resourcevar.h> 56#include <sys/ioctl.h> 57#include <sys/tty.h> 58 59/* --- 7 unchanged lines hidden (view full) --- 67 * is read by a user process, etc. However, that has its own problems. 68 */ 69 70/* 71 * Internal accounting functions. 72 * The former's operation is described in Leffler, et al., and the latter 73 * was provided by UCB with the 4.4BSD-Lite release 74 */ | 53#include <sys/namei.h> 54#include <sys/errno.h> 55#include <sys/acct.h> 56#include <sys/resourcevar.h> 57#include <sys/ioctl.h> 58#include <sys/tty.h> 59 60/* --- 7 unchanged lines hidden (view full) --- 68 * is read by a user process, etc. However, that has its own problems. 69 */ 70 71/* 72 * Internal accounting functions. 73 * The former's operation is described in Leffler, et al., and the latter 74 * was provided by UCB with the 4.4BSD-Lite release 75 */ |
| 75comp_t encode_comp_t __P((u_long, u_long)); 76void acctwatch __P((void *)); | 76static comp_t encode_comp_t __P((u_long, u_long)); 77static void acctwatch __P((void *)); |
| 77 78/* 79 * Accounting vnode pointer, and saved vnode pointer. 80 */ | 78 79/* 80 * Accounting vnode pointer, and saved vnode pointer. 81 */ |
| 81struct vnode *acctp; 82struct vnode *savacctp; | 82static struct vnode *acctp; 83static struct vnode *savacctp; |
| 83 84/* 85 * Values associated with enabling and disabling accounting 86 */ | 84 85/* 86 * Values associated with enabling and disabling accounting 87 */ |
| 87int acctsuspend = 2; /* stop accounting when < 2% free space left */ 88int acctresume = 4; /* resume when free space risen to > 4% */ 89int acctchkfreq = 15; /* frequency (in seconds) to check space */ | 88static int acctsuspend = 2; /* stop accounting when < 2% free space left */ 89SYSCTL_INT(_kern, OID_AUTO, acct_suspend, CTLFLAG_RW, 90 &acctsuspend, 0, ""); |
| 90 | 91 |
| 92static int acctresume = 4; /* resume when free space risen to > 4% */ 93SYSCTL_INT(_kern, OID_AUTO, acct_resume, CTLFLAG_RW, 94 &acctresume, 0, ""); 95 96static int acctchkfreq = 15; /* frequency (in seconds) to check space */ 97SYSCTL_INT(_kern, OID_AUTO, acct_chkfreq, CTLFLAG_RW, 98 &acctchkfreq, 0, ""); 99 |
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| 91/* 92 * Accounting system call. Written based on the specification and 93 * previous implementation done by Mark Tinguely. 94 */ 95#ifndef _SYS_SYSPROTO_H_ 96struct acct_args { 97 char *path; 98}; --- 131 unchanged lines hidden (view full) --- 230 * to ticks in 1/AHZ seconds. The encoding is described in 231 * Leffler, et al., on page 63. 232 */ 233 234#define MANTSIZE 13 /* 13 bit mantissa. */ 235#define EXPSIZE 3 /* Base 8 (3 bit) exponent. */ 236#define MAXFRACT ((1 << MANTSIZE) - 1) /* Maximum fractional value. */ 237 | 100/* 101 * Accounting system call. Written based on the specification and 102 * previous implementation done by Mark Tinguely. 103 */ 104#ifndef _SYS_SYSPROTO_H_ 105struct acct_args { 106 char *path; 107}; --- 131 unchanged lines hidden (view full) --- 239 * to ticks in 1/AHZ seconds. The encoding is described in 240 * Leffler, et al., on page 63. 241 */ 242 243#define MANTSIZE 13 /* 13 bit mantissa. */ 244#define EXPSIZE 3 /* Base 8 (3 bit) exponent. */ 245#define MAXFRACT ((1 << MANTSIZE) - 1) /* Maximum fractional value. */ 246 |
| 238comp_t | 247static comp_t |
| 239encode_comp_t(s, us) 240 u_long s, us; 241{ 242 int exp, rnd; 243 244 exp = 0; 245 rnd = 0; 246 s *= AHZ; --- 19 unchanged lines hidden (view full) --- 266 267/* 268 * Periodically check the file system to see if accounting 269 * should be turned on or off. Beware the case where the vnode 270 * has been vgone()'d out from underneath us, e.g. when the file 271 * system containing the accounting file has been forcibly unmounted. 272 */ 273/* ARGSUSED */ | 248encode_comp_t(s, us) 249 u_long s, us; 250{ 251 int exp, rnd; 252 253 exp = 0; 254 rnd = 0; 255 s *= AHZ; --- 19 unchanged lines hidden (view full) --- 275 276/* 277 * Periodically check the file system to see if accounting 278 * should be turned on or off. Beware the case where the vnode 279 * has been vgone()'d out from underneath us, e.g. when the file 280 * system containing the accounting file has been forcibly unmounted. 281 */ 282/* ARGSUSED */ |
| 274void | 283static void |
| 275acctwatch(a) 276 void *a; 277{ 278 struct statfs sb; 279 280 if (savacctp != NULLVP) { 281 if (savacctp->v_type == VBAD) { 282 (void) vn_close(savacctp, FWRITE, NOCRED, NULL); --- 25 unchanged lines hidden --- | 284acctwatch(a) 285 void *a; 286{ 287 struct statfs sb; 288 289 if (savacctp != NULLVP) { 290 if (savacctp->v_type == VBAD) { 291 (void) vn_close(savacctp, FWRITE, NOCRED, NULL); --- 25 unchanged lines hidden --- |