diff options
Diffstat (limited to 'usr/src/cmd/avs/dsstat/common.c')
| -rw-r--r-- | usr/src/cmd/avs/dsstat/common.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/usr/src/cmd/avs/dsstat/common.c b/usr/src/cmd/avs/dsstat/common.c deleted file mode 100644 index 45f8145591..0000000000 --- a/usr/src/cmd/avs/dsstat/common.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * 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. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <strings.h> -#include <errno.h> -#include <kstat.h> -#include <signal.h> -#include <setjmp.h> - -#include "sdbc_stats.h" -#include "report.h" -#include "common.h" - -static sigjmp_buf env; -static sig_atomic_t sig_raised = 0; -static void sig_handler(int); - -void -sig_handler(int sig) -{ - switch (sig) { - case SIGSEGV: - sig_raised = 1; - siglongjmp(env, sig); - default: - exit(sig); - } -} - -/* - * kstat_retrieve() - populate the ks_data field of the kstat_t structure - * - * This function is a user-land equivalent of a ks_snapshot - * - * parameters - * kstat_ctl_t *kc - kstat_ctl_t structure representing returned from - * kstat_open() - * kstat_t *ksp - kstat_t strcture to popluate ks_data into - * - * returns - * NULL pointer on failure - * kstat_t * structure on success - */ -kstat_t * -kstat_retrieve(kstat_ctl_t *kc, kstat_t *ksp) -{ - - kstat_t *rval; - kstat_named_t *knp; - char *end; - int i; - struct sigaction segv_act; /* default actions */ - - if (ksp == NULL) - return (NULL); - - if (ksp->ks_data == NULL && - kstat_read(kc, ksp, NULL) == -1) - return (NULL); - - rval = (kstat_t *)calloc(1, sizeof (*ksp)); - (void) memcpy(rval, ksp, sizeof (*ksp)); - - rval->ks_data = (void *) calloc(1, ksp->ks_data_size); - (void) memcpy(rval->ks_data, ksp->ks_data, - sizeof (kstat_named_t) * ksp->ks_ndata); - - /* special handling for variable length string KSTAT_DATA_STRING */ - knp = (kstat_named_t *)rval->ks_data; - end = (char *)(knp + ksp->ks_ndata); - for (i = 0; i < ksp->ks_ndata; i++, knp++) { - if (knp->data_type == KSTAT_DATA_STRING && - KSTAT_NAMED_STR_PTR(knp) != NULL) { - /* catch SIGSEGV (bug 6384130) */ - sig_raised = 0; - (void) sigaction(SIGSEGV, NULL, &segv_act); - (void) signal(SIGSEGV, sig_handler); - - (void) strncpy(end, KSTAT_NAMED_STR_PTR(knp), - KSTAT_NAMED_STR_BUFLEN(knp)); - KSTAT_NAMED_STR_PTR(knp) = end; - end += KSTAT_NAMED_STR_BUFLEN(knp); - - /* bug 6384130 */ - (void) sigsetjmp(env, 0); - if (sig_raised) { - bzero(end, KSTAT_NAMED_STR_BUFLEN(knp)); - KSTAT_NAMED_STR_PTR(knp) = end; - end += KSTAT_NAMED_STR_BUFLEN(knp); - } - (void) sigaction(SIGSEGV, &segv_act, NULL); - } - } - - return (rval); -} - -/* - * kstat_value() - retrieve value of a field in a kstat_named_t kstat. - * - * parameters - * kstat_t *ksp - kstat containing the field - * char *name - text string representing the field name - * - * returns - * void * - pointer to data retrieved - */ -void * -kstat_value(kstat_t *ksp, char *name) -{ - kstat_named_t *knm; - - if ((knm = kstat_data_lookup(ksp, name)) == NULL) - return (NULL); - - switch (knm->data_type) { - case KSTAT_DATA_CHAR : - return (knm->value.c); - case KSTAT_DATA_INT32 : - return (&knm->value.i32); - case KSTAT_DATA_UINT32 : - return (&knm->value.ui32); - case KSTAT_DATA_INT64 : - return (&knm->value.i64); - case KSTAT_DATA_UINT64 : - return (&knm->value.ui64); - case KSTAT_DATA_STRING : - return (KSTAT_NAMED_STR_PTR(knm)); - } - - return (NULL); -} - -/* - * kstat_free() - deallocated memory associated with a kstat - * - * paramters - * kstat_t ksp - kstat to be deallocated - * - * returns - * void - */ -void -kstat_free(kstat_t *ksp) -{ - if (ksp != NULL) { - if (ksp->ks_data != NULL) - free(ksp->ks_data); - free(ksp); - } -} - -uint32_t -kstat_delta(kstat_t *pksp, kstat_t *cksp, char *name) -{ - uint32_t *pv, *cv; - - pv = kstat_value(pksp, name); - cv = kstat_value(cksp, name); - - return (u32_delta(*pv, *cv)); -} |