/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. * Copyright (c) 2016 by Delphix. All rights reserved. * Copyright 2017 Jason King */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "statcommon.h" /* * For now, parsable output is turned off. Once we gather feedback and * stablize the output format, we'll turn it back on. This prevents * the situation where users build tools which depend on a specific * format before we declare the output stable. */ #define PARSABLE_OUTPUT 0 #if PARSABLE_OUTPUT #define OPTIONS "FPT:afginv" #else #define OPTIONS "FT:afginv" #endif /* Time stamp values */ #define NODATE 0 /* Default: No time stamp */ #define DDATE 1 /* Standard date format */ #define UDATE 2 /* Internal representation of Unix time */ #define RETRY_DELAY 250 /* Timeout for poll() */ #define HEADERLINES 12 /* Number of lines between display headers */ #define LBUFSZ 64 /* Generic size for local buffer */ CTASSERT(LBUFSZ >= NN_NUMBUF_SZ); #define NENTITY_INIT 1 /* Initial number of entities to allocate */ /* * We need to have a mechanism for an old/previous and new/current vopstat * structure. We only need two per entity and we can swap between them. */ #define VS_SIZE 2 /* Size of vopstat array */ #define CUR_INDEX (vs_i) #define PREV_INDEX ((vs_i == 0) ? 1 : 0) /* Opposite of CUR_INDEX */ #define BUMP_INDEX() vs_i = ((vs_i == 0) ? 1 : 0) /* * An "entity" is anything we're collecting statistics on, it could * be a mountpoint or an FS-type. * e_name is the name of the entity (e.g. mount point or FS-type) * e_ksname is the name of the associated kstat * e_vs is an array of vopstats. This is used to keep track of "previous" * and "current" vopstats. */ typedef struct entity { char *e_name; /* name of entity */ vopstats_t *e_vs; /* Array of vopstats */ ulong_t e_fsid; /* fsid for ENTYPE_MNTPT only */ int e_type; /* type of entity */ char e_ksname[KSTAT_STRLEN]; /* kstat name */ } entity_t; /* Types of entities (e_type) */ #define ENTYPE_UNKNOWN 0 /* UNKNOWN must be zero since we calloc() */ #define ENTYPE_FSTYPE 1 #define ENTYPE_MNTPT 2 char *cmdname; /* name of this command */ int caught_cont = 0; /* have caught a SIGCONT */ static uint_t timestamp_fmt = NODATE; /* print timestamp with stats */ static int vs_i = 0; /* Index of current vs[] slot */ static void usage() { (void) fprintf(stderr, gettext( "Usage: %s [-a|f|i|n|v] [-T d|u] {-F | {fstype | fspath}...} " "[interval [count]]\n"), cmdname); exit(2); } #define RAWVAL(ptr, member) ((ptr)->member.value.ui64) #define DELTA(member) \ (newvsp->member.value.ui64 - (oldvsp ? oldvsp->member.value.ui64 : 0)) #define PRINTSTAT(isnice, nicestring, rawstring, rawval, buf) \ (isnice) ? \ nicenum(rawval, buf, sizeof (buf)), \ (void) printf((nicestring), (buf)) \ : \ (void) printf((rawstring), (rawval)) /* Values for display flag */ #define DISP_HEADER 0x1 #define DISP_RAW 0x2 /* * The policy for dealing with multiple flags is dealt with here. * Currently, if we are displaying raw output, then don't allow * headers to be printed. */ int dispflag_policy(int printhdr, int dispflag) { /* If we're not displaying raw output, then allow headers to print */ if ((dispflag & DISP_RAW) == 0) { if (printhdr) { dispflag |= DISP_HEADER; } } return (dispflag); } static void dflt_display(char *name, vopstats_t *oldvsp, vopstats_t *newvsp, int dispflag) { int niceflag = ((dispflag & DISP_RAW) == 0); longlong_t nnewfile; longlong_t nnamerm; longlong_t nnamechg; longlong_t nattrret; longlong_t nattrchg; longlong_t nlookup; longlong_t nreaddir; longlong_t ndataread; longlong_t ndatawrite; longlong_t readthruput; longlong_t writethruput; char buf[LBUFSZ]; nnewfile = DELTA(ncreate) + DELTA(nmkdir) + DELTA(nsymlink); nnamerm = DELTA(nremove) + DELTA(nrmdir); nnamechg = DELTA(nrename) + DELTA(nlink) + DELTA(nsymlink); nattrret = DELTA(ngetattr) + DELTA(naccess) + DELTA(ngetsecattr) + DELTA(nfid); nattrchg = DELTA(nsetattr) + DELTA(nsetsecattr) + DELTA(nspace); nlookup = DELTA(nlookup); nreaddir = DELTA(nreaddir); ndataread = DELTA(nread); ndatawrite = DELTA(nwrite); readthruput = DELTA(read_bytes); writethruput = DELTA(write_bytes); if (dispflag & DISP_HEADER) { (void) printf( " new name name attr attr lookup rddir read read write write\n" " file remov chng get set ops ops ops bytes ops bytes\n"); } PRINTSTAT(niceflag, "%5s ", "%lld:", nnewfile, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", nnamerm, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", nnamechg, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", nattrret, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", nattrchg, buf); PRINTSTAT(niceflag, " %5s ", "%lld:", nlookup, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", nreaddir, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", ndataread, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", readthruput, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", ndatawrite, buf); PRINTSTAT(niceflag, "%5s ", "%lld:", writethruput, buf); (void) printf("%s\n", name); } static void io_display(char *name, vopstats_t *oldvsp, vopstats_t *newvsp, int dispflag) { int niceflag = ((dispflag & DISP_RAW) == 0); char buf[LBUFSZ]; if (dispflag & DISP_HEADER) { (void) printf( " read read write write rddir rddir rwlock rwulock\n" " ops bytes ops bytes ops bytes ops ops\n"); } PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nread), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(read_bytes), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nwrite), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(write_bytes), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nreaddir), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(readdir_bytes), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(nrwlock), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nrwunlock), buf); (void) printf("%s\n", name); } static void vm_display(char *name, vopstats_t *oldvsp, vopstats_t *newvsp, int dispflag) { int niceflag = ((dispflag & DISP_RAW) == 0); char buf[LBUFSZ]; if (dispflag & DISP_HEADER) { (void) printf(" map addmap delmap getpag putpag pagio\n"); } PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nmap), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(naddmap), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(ndelmap), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(ngetpage), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(nputpage), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(npageio), buf); (void) printf("%s\n", name); } static void attr_display(char *name, vopstats_t *oldvsp, vopstats_t *newvsp, int dispflag) { int niceflag = ((dispflag & DISP_RAW) == 0); char buf[LBUFSZ]; if (dispflag & DISP_HEADER) { (void) printf("getattr setattr getsec setsec\n"); } PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(ngetattr), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(nsetattr), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(ngetsecattr), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(nsetsecattr), buf); (void) printf("%s\n", name); } static void naming_display(char *name, vopstats_t *oldvsp, vopstats_t *newvsp, int dispflag) { int niceflag = ((dispflag & DISP_RAW) == 0); char buf[LBUFSZ]; if (dispflag & DISP_HEADER) { (void) printf( "lookup creat remov link renam mkdir rmdir rddir symlnk rdlnk\n"); } PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nlookup), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(ncreate), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nremove), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nlink), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nrename), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nmkdir), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nrmdir), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nreaddir), buf); PRINTSTAT(niceflag, " %5s ", "%lld:", DELTA(nsymlink), buf); PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(nreadlink), buf); (void) printf("%s\n", name); } #define PRINT_VOPSTAT_CMN(niceflag, vop) \ if (niceflag) \ (void) printf("%10s ", #vop); \ PRINTSTAT(niceflag, "%5s ", "%lld:", DELTA(n##vop), buf); #define PRINT_VOPSTAT(niceflag, vop) \ PRINT_VOPSTAT_CMN(niceflag, vop); \ if (niceflag) \ (void) printf("\n"); #define PRINT_VOPSTAT_IO(niceflag, vop) \ PRINT_VOPSTAT_CMN(niceflag, vop); \ PRINTSTAT(niceflag, " %5s\n", "%lld:", \ DELTA(vop##_bytes), buf); static void vop_display(char *name, vopstats_t *oldvsp, vopstats_t *newvsp, int dispflag) { int niceflag = ((dispflag & DISP_RAW) == 0); char buf[LBUFSZ]; if (niceflag) { (void) printf("%s\n", name); (void) printf(" operation #ops bytes\n"); } PRINT_VOPSTAT(niceflag, open); PRINT_VOPSTAT(niceflag, close); PRINT_VOPSTAT_IO(niceflag, read); PRINT_VOPSTAT_IO(niceflag, write); PRINT_VOPSTAT(niceflag, ioctl); PRINT_VOPSTAT(niceflag, setfl); PRINT_VOPSTAT(niceflag, getattr); PRINT_VOPSTAT(niceflag, setattr); PRINT_VOPSTAT(niceflag, access); PRINT_VOPSTAT(niceflag, lookup); PRINT_VOPSTAT(niceflag, create); PRINT_VOPSTAT(niceflag, remove); PRINT_VOPSTAT(niceflag, link); PRINT_VOPSTAT(niceflag, rename); PRINT_VOPSTAT(niceflag, mkdir); PRINT_VOPSTAT(niceflag, rmdir); PRINT_VOPSTAT_IO(niceflag, readdir); PRINT_VOPSTAT(niceflag, symlink); PRINT_VOPSTAT(niceflag, readlink); PRINT_VOPSTAT(niceflag, fsync); PRINT_VOPSTAT(niceflag, inactive); PRINT_VOPSTAT(niceflag, fid); PRINT_VOPSTAT(niceflag, rwlock); PRINT_VOPSTAT(niceflag, rwunlock); PRINT_VOPSTAT(niceflag, seek); PRINT_VOPSTAT(niceflag, cmp); PRINT_VOPSTAT(niceflag, frlock); PRINT_VOPSTAT(niceflag, space); PRINT_VOPSTAT(niceflag, realvp); PRINT_VOPSTAT(niceflag, getpage); PRINT_VOPSTAT(niceflag, putpage); PRINT_VOPSTAT(niceflag, map); PRINT_VOPSTAT(niceflag, addmap); PRINT_VOPSTAT(niceflag, delmap); PRINT_VOPSTAT(niceflag, poll); PRINT_VOPSTAT(niceflag, dump); PRINT_VOPSTAT(niceflag, pathconf); PRINT_VOPSTAT(niceflag, pageio); PRINT_VOPSTAT(niceflag, dumpctl); PRINT_VOPSTAT(niceflag, dispose); PRINT_VOPSTAT(niceflag, getsecattr); PRINT_VOPSTAT(niceflag, setsecattr); PRINT_VOPSTAT(niceflag, shrlock); PRINT_VOPSTAT(niceflag, vnevent); PRINT_VOPSTAT(niceflag, reqzcbuf); PRINT_VOPSTAT(niceflag, retzcbuf); if (niceflag) { /* Make it easier on the eyes */ (void) printf("\n"); } else { (void) printf("%s\n", name); } } /* * Retrieve the vopstats. If kspp (pointer to kstat_t pointer) is non-NULL, * then pass it back to the caller. * * Returns 0 on success, non-zero on failure. */ int get_vopstats(kstat_ctl_t *kc, char *ksname, vopstats_t *vsp, kstat_t **kspp) { kstat_t *ksp; if (ksname == NULL || *ksname == 0) return (1); errno = 0; /* wait for a possibly up-to-date chain */ while (kstat_chain_update(kc) == -1) { if (errno == EAGAIN) { errno = 0; (void) poll(NULL, 0, RETRY_DELAY); continue; } perror("kstat_chain_update"); exit(1); } if ((ksp = kstat_lookup(kc, NULL, -1, ksname)) == NULL) { return (1); } if (kstat_read(kc, ksp, vsp) == -1) { return (1); } if (kspp) *kspp = ksp; return (0); } /* * Given a file system type name, determine if it's part of the * exception list of file systems that are not to be displayed. */ int is_exception(char *fsname) { char **xlp; /* Pointer into the exception list */ static char *exception_list[] = { "specfs", "fifofs", "fd", "swapfs", "ctfs", "objfs", "nfsdyn", NULL }; for (xlp = &exception_list[0]; *xlp != NULL; xlp++) { if (strcmp(fsname, *xlp) == 0) return (1); } return (0); } /* * Plain and simple, build an array of names for fstypes * Returns 0, if it encounters a problem. */ int build_fstype_list(char ***fstypep) { int i; int nfstype; char buf[FSTYPSZ + 1]; if ((nfstype = sysfs(GETNFSTYP)) < 0) { perror("sysfs(GETNFSTYP)"); return (0); } if ((*fstypep = calloc(nfstype, sizeof (char *))) == NULL) { perror("calloc() fstypes"); return (0); } for (i = 1; i < nfstype; i++) { if (sysfs(GETFSTYP, i, buf) < 0) { perror("sysfs(GETFSTYP)"); return (0); } if (buf[0] == 0) continue; /* If this is part of the exception list, move on */ if (is_exception(buf)) continue; if (((*fstypep)[i] = strdup(buf)) == NULL) { perror("strdup() fstype name"); return (0); } } return (i); } /* * After we're done with getopts(), process the rest of the * operands. We have three cases and this is the priority: * * 1) [ operand... ] interval count * 2) [ operand... ] interval * 3) [ operand... ] * * The trick is that any of the operands might start with a number or even * be made up exclusively of numbers (and we have to handle negative numbers * in case a user/script gets out of line). If we find two operands at the * end of the list then we claim case 1. If we find only one operand at the * end made up only of number, then we claim case 2. Otherwise, case 3. * BTW, argc, argv don't change. */ int parse_operands( int argc, char **argv, int optind, long *interval, long *count, entity_t **entityp) /* Array of stat-able entities */ { int nentities = 0; /* Number of entities found */ int out_of_range; /* Set if 2nd-to-last operand out-of-range */ if (argc == optind) return (nentities); /* None found, returns 0 */ /* * We know exactly what the maximum number of entities is going * to be: argc - optind */ if ((*entityp = calloc((argc - optind), sizeof (entity_t))) == NULL) { perror("calloc() entities"); return (-1); } for (/* void */; argc > optind; optind++) { char *endptr; /* If we have more than two operands left to process */ if ((argc - optind) > 2) { (*entityp)[nentities++].e_name = strdup(argv[optind]); continue; } /* If we're here, then we only have one or two operands left */ errno = 0; out_of_range = 0; *interval = strtol(argv[optind], &endptr, 10); if (*endptr && !isdigit((int)*endptr)) { /* Operand was not a number */ (*entityp)[nentities++].e_name = strdup(argv[optind]); continue; } else if (errno == ERANGE || *interval <= 0 || *interval > MAXLONG) { /* Operand was a number, just out of range */ out_of_range++; } /* * The last operand we saw was a number. If it happened to * be the last operand, then it is the interval... */ if ((argc - optind) == 1) { /* ...but we need to check the range. */ if (out_of_range) { (void) fprintf(stderr, gettext( "interval must be between 1 and " "%ld (inclusive)\n"), MAXLONG); return (-1); } else { /* * The value of the interval is valid. Set * count to something really big so it goes * virtually forever. */ *count = MAXLONG; break; } } /* * At this point, we *might* have the interval, but if the * next operand isn't a number, then we don't have either * the interval nor the count. Both must be set to the * defaults. In that case, both the current and the previous * operands are stat-able entities. */ errno = 0; *count = strtol(argv[optind + 1], &endptr, 10); if (*endptr && !isdigit((int)*endptr)) { /* * Faked out! The last operand wasn't a number so * the current and previous operands should be * stat-able entities. We also need to reset interval. */ *interval = 0; (*entityp)[nentities++].e_name = strdup(argv[optind++]); (*entityp)[nentities++].e_name = strdup(argv[optind++]); } else if (out_of_range || errno == ERANGE || *count <= 0) { (void) fprintf(stderr, gettext( "Both interval and count must be between 1 " "and %ld (inclusive)\n"), MAXLONG); return (-1); } break; /* Done! */ } return (nentities); } /* * set_mntpt() looks at the entity's name (e_name) and finds its * mountpoint. To do this, we need to build a list of mountpoints * from /etc/mnttab. We only need to do this once and we don't do it * if we don't need to look at any mountpoints. * Returns 0 on success, non-zero if it couldn't find a mount-point. */ int set_mntpt(entity_t *ep) { static struct mnt { struct mnt *m_next; char *m_mntpt; ulong_t m_fsid; /* From statvfs(), set only as needed */ } *mnt_list = NULL; /* Linked list of mount-points */ struct mnt *mntp; struct statvfs64 statvfsbuf; char *original_name = ep->e_name; char path[PATH_MAX]; if (original_name == NULL) /* Shouldn't happen */ return (1); /* We only set up mnt_list the first time this is called */ if (mnt_list == NULL) { FILE *fp; struct mnttab mnttab; if ((fp = fopen(MNTTAB, "r")) == NULL) { perror(MNTTAB); return (1); } resetmnttab(fp); /* * We insert at the front of the list so that when we * search entries we'll have the last mounted entries * first in the list so that we can match the longest * mountpoint. */ while (getmntent(fp, &mnttab) == 0) { if ((mntp = malloc(sizeof (*mntp))) == NULL) { perror("malloc() mount list"); return (1); } mntp->m_mntpt = strdup(mnttab.mnt_mountp); mntp->m_next = mnt_list; mnt_list = mntp; } (void) fclose(fp); } if (realpath(original_name, path) == NULL) { perror(original_name); return (1); } /* * Now that we have the path, walk through the mnt_list and * look for the first (best) match. */ for (mntp = mnt_list; mntp; mntp = mntp->m_next) { if (strncmp(path, mntp->m_mntpt, strlen(mntp->m_mntpt)) == 0) { if (mntp->m_fsid == 0) { if (statvfs64(mntp->m_mntpt, &statvfsbuf)) { /* Can't statvfs so no match */ continue; } else { mntp->m_fsid = statvfsbuf.f_fsid; } } if (ep->e_fsid != mntp->m_fsid) { /* No match - Move on */ continue; } break; } } if (mntp == NULL) { (void) fprintf(stderr, gettext( "Can't find mount point for %s\n"), path); return (1); } ep->e_name = strdup(mntp->m_mntpt); free(original_name); return (0); } /* * We have an array of entities that are potentially stat-able. Using * the name (e_name) of the entity, attempt to construct a ksname suitable * for use by kstat_lookup(3kstat) and fill it into the e_ksname member. * * We check the e_name against the list of file system types. If there is * no match then test to see if the path is valid. If the path is valid, * then determine the mountpoint. */ void set_ksnames(entity_t *entities, int nentities, char **fstypes, int nfstypes) { int i, j; struct statvfs64 statvfsbuf; for (i = 0; i < nentities; i++) { entity_t *ep = &entities[i]; /* Check the name against the list of fstypes */ for (j = 1; j < nfstypes; j++) { if (fstypes[j] && ep->e_name && strcmp(ep->e_name, fstypes[j]) == 0) { /* It's a file system type */ ep->e_type = ENTYPE_FSTYPE; (void) snprintf(ep->e_ksname, KSTAT_STRLEN, "%s%s", VOPSTATS_STR, ep->e_name); /* Now allocate the vopstats array */ ep->e_vs = calloc(VS_SIZE, sizeof (vopstats_t)); if (entities[i].e_vs == NULL) { perror("calloc() fstype vopstats"); exit(1); } break; } } if (j < nfstypes) /* Found it! */ continue; /* * If the entity in the exception list of fstypes, then * null out the entry so it isn't displayed and move along. */ if (is_exception(ep->e_name)) { ep->e_ksname[0] = 0; continue; } /* If we didn't find it, see if it's a path */ if (ep->e_name == NULL || statvfs64(ep->e_name, &statvfsbuf)) { /* Error - Make sure the entry is nulled out */ ep->e_ksname[0] = 0; continue; } (void) snprintf(ep->e_ksname, KSTAT_STRLEN, "%s%lx", VOPSTATS_STR, statvfsbuf.f_fsid); ep->e_fsid = statvfsbuf.f_fsid; if (set_mntpt(ep)) { (void) fprintf(stderr, gettext("Can't determine type of \"%s\"\n"), ep->e_name ? ep->e_name : gettext("")); } else { ep->e_type = ENTYPE_MNTPT; } /* Now allocate the vopstats array */ ep->e_vs = calloc(VS_SIZE, sizeof (vopstats_t)); if (entities[i].e_vs == NULL) { perror("calloc() vopstats array"); exit(1); } } } /* * The idea is that 'dspfunc' should only be modified from the default * once since the display options are mutually exclusive. If 'dspfunc' * only contains the default display function, then all is good and we * can set it to the new display function. Otherwise, bail. */ void set_dispfunc( void (**dspfunc)(char *, vopstats_t *, vopstats_t *, int), void (*newfunc)(char *, vopstats_t *, vopstats_t *, int)) { if (*dspfunc != dflt_display) { (void) fprintf(stderr, gettext( "%s: Display options -{a|f|i|n|v} are mutually exclusive\n"), cmdname); usage(); } *dspfunc = newfunc; } int main(int argc, char *argv[]) { int c; int i, j; /* Generic counters */ int nentities_found; int linesout = 0; /* Keeps track of lines printed */ int printhdr = 0; /* Print a header? 0 = no, 1 = yes */ int nfstypes; /* Number of fstypes */ int dispflag = 0; /* Flags for display control */ long count = 0; /* Number of iterations for display */ int forever; /* Run forever */ long interval = 0; boolean_t fstypes_only = B_FALSE; /* Display fstypes only */ char **fstypes; /* Array of names of all fstypes */ int nentities; /* Number of stat-able entities */ entity_t *entities; /* Array of stat-able entities */ kstat_ctl_t *kc; void (*dfunc)(char *, vopstats_t *, vopstats_t *, int) = dflt_display; hrtime_t start_n; /* Start time */ hrtime_t period_n; /* Interval in nanoseconds */ extern int optind; (void) setlocale(LC_ALL, ""); #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */ #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */ #endif (void) textdomain(TEXT_DOMAIN); /* Don't let buffering interfere with piped output. */ (void) setvbuf(stdout, NULL, _IOLBF, 0); cmdname = argv[0]; while ((c = getopt(argc, argv, OPTIONS)) != EOF) { switch (c) { default: usage(); break; case 'F': /* Only display available FStypes */ fstypes_only = B_TRUE; break; #if PARSABLE_OUTPUT case 'P': /* Parsable output */ dispflag |= DISP_RAW; break; #endif /* PARSABLE_OUTPUT */ case 'T': /* Timestamp */ if (optarg) { if (strcmp(optarg, "u") == 0) { timestamp_fmt = UDATE; } else if (strcmp(optarg, "d") == 0) { timestamp_fmt = DDATE; } } /* If it was never set properly... */ if (timestamp_fmt == NODATE) { (void) fprintf(stderr, gettext("%s: -T option " "requires either 'u' or 'd'\n"), cmdname); usage(); } break; case 'a': set_dispfunc(&dfunc, attr_display); break; case 'f': set_dispfunc(&dfunc, vop_display); break; case 'i': set_dispfunc(&dfunc, io_display); break; case 'n': set_dispfunc(&dfunc, naming_display); break; case 'v': set_dispfunc(&dfunc, vm_display); break; } } #if PARSABLE_OUTPUT if ((dispflag & DISP_RAW) && (timestamp_fmt != NODATE)) { (void) fprintf(stderr, gettext( "-P and -T options are mutually exclusive\n")); usage(); } #endif /* PARSABLE_OUTPUT */ /* Gather the list of filesystem types */ if ((nfstypes = build_fstype_list(&fstypes)) == 0) { (void) fprintf(stderr, gettext("Can't build list of fstypes\n")); exit(1); } nentities = parse_operands( argc, argv, optind, &interval, &count, &entities); forever = count == MAXLONG; period_n = (hrtime_t)interval * NANOSEC; if (nentities == -1) /* Set of operands didn't parse properly */ usage(); if ((nentities == 0) && (fstypes_only == B_FALSE)) { (void) fprintf(stderr, gettext( "Must specify -F or at least one fstype or mount point\n")); usage(); } if ((nentities > 0) && (fstypes_only == B_TRUE)) { (void) fprintf(stderr, gettext( "Cannot use -F with fstypes or mount points\n")); usage(); } /* * If we had no operands (except for interval/count) and we * requested FStypes only (-F), then fill in the entities[] * array with all available fstypes. */ if ((nentities == 0) && (fstypes_only == B_TRUE)) { if ((entities = calloc(nfstypes, sizeof (entity_t))) == NULL) { perror("calloc() fstype stats"); exit(1); } for (i = 1; i < nfstypes; i++) { if (fstypes[i]) { entities[nentities].e_name = strdup(fstypes[i]); nentities++; } } } set_ksnames(entities, nentities, fstypes, nfstypes); if ((kc = kstat_open()) == NULL) { perror("kstat_open"); exit(1); } /* Set start time */ start_n = gethrtime(); /* Initial timestamp */ if (timestamp_fmt != NODATE) { print_timestamp(timestamp_fmt); linesout++; } /* * The following loop walks through the entities[] list to "prime * the pump" */ for (j = 0, printhdr = 1; j < nentities; j++) { entity_t *ent = &entities[j]; vopstats_t *vsp = &ent->e_vs[CUR_INDEX]; kstat_t *ksp = NULL; if (get_vopstats(kc, ent->e_ksname, vsp, &ksp) == 0) { (*dfunc)(ent->e_name, NULL, vsp, dispflag_policy(printhdr, dispflag)); linesout++; } else { /* * If we can't find it the first time through, then * get rid of it. */ entities[j].e_ksname[0] = 0; /* * If we're only displaying FStypes (-F) then don't * complain about any file systems that might not * be loaded. Otherwise, let the user know that * they chose poorly. */ if (fstypes_only == B_FALSE) { (void) fprintf(stderr, gettext( "No statistics available for %s\n"), entities[j].e_name); } } printhdr = 0; } if (count > 1) /* Set up signal handler for SIGCONT */ if (signal(SIGCONT, cont_handler) == SIG_ERR) fail(1, "signal failed"); BUMP_INDEX(); /* Swap the previous/current indices */ i = 1; while (forever || i++ <= count) { /* * No telling how many lines will be printed in any interval. * There should be a minimum of HEADERLINES between any * header. If we exceed that, no big deal. */ if (linesout > HEADERLINES) { linesout = 0; printhdr = 1; } /* Have a kip */ sleep_until(&start_n, period_n, forever, &caught_cont); if (timestamp_fmt != NODATE) { print_timestamp(timestamp_fmt); linesout++; } for (j = 0, nentities_found = 0; j < nentities; j++) { entity_t *ent = &entities[j]; /* * If this entry has been cleared, don't attempt * to process it. */ if (ent->e_ksname[0] == 0) { continue; } if (get_vopstats(kc, ent->e_ksname, &ent->e_vs[CUR_INDEX], NULL) == 0) { (*dfunc)(ent->e_name, &ent->e_vs[PREV_INDEX], &ent->e_vs[CUR_INDEX], dispflag_policy(printhdr, dispflag)); linesout++; nentities_found++; } else { if (ent->e_type == ENTYPE_MNTPT) { (void) printf(gettext( "<>\n"), ent->e_name); } else if (ent->e_type == ENTYPE_FSTYPE) { (void) printf(gettext( "<>\n"), ent->e_name); } else { (void) printf(gettext( "<<%s no longer available>>\n"), ent->e_name); } /* Disable this so it doesn't print again */ ent->e_ksname[0] = 0; } printhdr = 0; /* Always shut this off */ } BUMP_INDEX(); /* Bump the previous/current indices */ /* * If the entities we were observing are no longer there * (file system modules unloaded, file systems unmounted) * then we're done. */ if (nentities_found == 0) break; } return (0); }