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Diffstat (limited to 'src/pmdas/solaris/kvm.c')
-rw-r--r-- | src/pmdas/solaris/kvm.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/pmdas/solaris/kvm.c b/src/pmdas/solaris/kvm.c new file mode 100644 index 0000000..5aa674a --- /dev/null +++ b/src/pmdas/solaris/kvm.c @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2009 Max Matveev. All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <kvm.h> +#include <nlist.h> + +#include "common.h" + + +static kvm_t *kvm; +struct nlist kvm_names[] = { + {.n_name = "fsf_total"}, + {.n_name = NULL} +}; + +fsf_stat_t s = {0}; +static int fresh; + +void +kvm_init(int ignore) +{ + kvm = kvm_open(NULL, NULL, NULL, O_RDONLY, "pmdasolaris"); + if (kvm && kvm_nlist(kvm, kvm_names)) + fprintf(stderr, "Cannot extract addresses\n"); +} + +void +kvm_refresh(void) +{ + fresh = kvm && + (kvm_kread(kvm, kvm_names[0].n_value, &s, sizeof(s)) == sizeof(s)); +} + +int +kvm_fetch(pmdaMetric *pm, int inst, pmAtomValue *v) +{ + metricdesc_t *md = pm->m_user; + char *p = (char *)&s; + + if (!fresh) + return 0; + + memcpy(&v->ull, p + md->md_offset, sizeof(v->ull)); + return 1; +} |