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diff --git a/src/swap.c b/src/swap.c
--- /dev/null
+++ b/src/swap.c
@@ -0,0 +1,794 @@
+/**
+ * collectd - src/swap.c
+ * Copyright (C) 2005-2014 Florian octo Forster
+ * Copyright (C) 2009 Stefan Völkel
+ * Copyright (C) 2009 Manuel Sanmartin
+ * Copyright (C) 2010 Aurélien Reynaud
+ *
+ * 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; only version 2 of the License is applicable.
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors:
+ * Florian octo Forster <octo at collectd.org>
+ * Manuel Sanmartin
+ * Aurélien Reynaud <collectd at wattapower.net>
+ **/
+
+#if HAVE_CONFIG_H
+# include "config.h"
+# undef HAVE_CONFIG_H
+#endif
+/* avoid swap.h error "Cannot use swapctl in the large files compilation environment" */
+#if HAVE_SYS_SWAP_H && !defined(_LP64) && _FILE_OFFSET_BITS == 64
+# undef _FILE_OFFSET_BITS
+# undef _LARGEFILE64_SOURCE
+#endif
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+
+#if HAVE_SYS_SWAP_H
+# include <sys/swap.h>
+#endif
+#if HAVE_VM_ANON_H
+# include <vm/anon.h>
+#endif
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+#if HAVE_SYS_SYSCTL_H
+# include <sys/sysctl.h>
+#endif
+#if HAVE_SYS_DKSTAT_H
+# include <sys/dkstat.h>
+#endif
+#if HAVE_KVM_H
+# include <kvm.h>
+#endif
+
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif
+
+#if HAVE_PERFSTAT
+# include <sys/protosw.h>
+# include <libperfstat.h>
+#endif
+
+#undef MAX
+#define MAX(x,y) ((x) > (y) ? (x) : (y))
+
+#if KERNEL_LINUX
+# define SWAP_HAVE_REPORT_BY_DEVICE 1
+static derive_t pagesize;
+static _Bool report_bytes = 0;
+static _Bool report_by_device = 0;
+/* #endif KERNEL_LINUX */
+
+#elif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS
+# define SWAP_HAVE_REPORT_BY_DEVICE 1
+static derive_t pagesize;
+static _Bool report_by_device = 0;
+/* #endif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS */
+
+#elif defined(VM_SWAPUSAGE)
+/* No global variables */
+/* #endif defined(VM_SWAPUSAGE) */
+
+#elif HAVE_LIBKVM_GETSWAPINFO
+static kvm_t *kvm_obj = NULL;
+int kvm_pagesize;
+/* #endif HAVE_LIBKVM_GETSWAPINFO */
+
+#elif HAVE_LIBSTATGRAB
+/* No global variables */
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif HAVE_PERFSTAT
+static int pagesize;
+/*# endif HAVE_PERFSTAT */
+
+#else
+# error "No applicable input method."
+#endif /* HAVE_LIBSTATGRAB */
+
+static _Bool values_absolute = 1;
+static _Bool values_percentage = 0;
+
+static int swap_config (oconfig_item_t *ci) /* {{{ */
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+ if (strcasecmp ("ReportBytes", child->key) == 0)
+#if KERNEL_LINUX
+ cf_util_get_boolean (child, &report_bytes);
+#else
+ WARNING ("swap plugin: The \"ReportBytes\" option "
+ "is only valid under Linux. "
+ "The option is going to be ignored.");
+#endif
+ else if (strcasecmp ("ReportByDevice", child->key) == 0)
+#if SWAP_HAVE_REPORT_BY_DEVICE
+ cf_util_get_boolean (child, &report_by_device);
+#else
+ WARNING ("swap plugin: The \"ReportByDevice\" option "
+ "is not supported on this platform. "
+ "The option is going to be ignored.");
+#endif /* SWAP_HAVE_REPORT_BY_DEVICE */
+ else if (strcasecmp ("ValuesAbsolute", child->key) == 0)
+ cf_util_get_boolean (child, &values_absolute);
+ else if (strcasecmp ("ValuesPercentage", child->key) == 0)
+ cf_util_get_boolean (child, &values_percentage);
+ else
+ WARNING ("swap plugin: Unknown config option: \"%s\"",
+ child->key);
+ }
+
+ return (0);
+} /* }}} int swap_config */
+
+static int swap_init (void) /* {{{ */
+{
+#if KERNEL_LINUX
+ pagesize = (derive_t) sysconf (_SC_PAGESIZE);
+/* #endif KERNEL_LINUX */
+
+#elif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS
+ /* getpagesize(3C) tells me this does not fail.. */
+ pagesize = (derive_t) getpagesize ();
+/* #endif HAVE_SWAPCTL */
+
+#elif defined(VM_SWAPUSAGE)
+ /* No init stuff */
+/* #endif defined(VM_SWAPUSAGE) */
+
+#elif HAVE_LIBKVM_GETSWAPINFO
+ char errbuf[_POSIX2_LINE_MAX];
+
+ if (kvm_obj != NULL)
+ {
+ kvm_close (kvm_obj);
+ kvm_obj = NULL;
+ }
+
+ kvm_pagesize = getpagesize ();
+
+ kvm_obj = kvm_openfiles (NULL, "/dev/null", NULL, O_RDONLY, errbuf);
+
+ if (kvm_obj == NULL)
+ {
+ ERROR ("swap plugin: kvm_openfiles failed, %s", errbuf);
+ return (-1);
+ }
+/* #endif HAVE_LIBKVM_GETSWAPINFO */
+
+#elif HAVE_LIBSTATGRAB
+ /* No init stuff */
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif HAVE_PERFSTAT
+ pagesize = getpagesize();
+#endif /* HAVE_PERFSTAT */
+
+ return (0);
+} /* }}} int swap_init */
+
+static void swap_submit_usage (char const *plugin_instance, /* {{{ */
+ gauge_t used, gauge_t free,
+ char const *other_name, gauge_t other_value)
+{
+ value_t v[1];
+ value_list_t vl = VALUE_LIST_INIT;
+
+ vl.values = v;
+ vl.values_len = STATIC_ARRAY_SIZE (v);
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "swap", sizeof (vl.plugin));
+ if (plugin_instance != NULL)
+ sstrncpy (vl.plugin_instance, plugin_instance,
+ sizeof (vl.plugin_instance));
+ sstrncpy (vl.type, "swap", sizeof (vl.type));
+
+ if (values_absolute)
+ plugin_dispatch_multivalue (&vl, 0, DS_TYPE_GAUGE,
+ "used", used, "free", free,
+ other_name, other_value, NULL);
+ if (values_percentage)
+ plugin_dispatch_multivalue (&vl, 1, DS_TYPE_GAUGE,
+ "used", used, "free", free,
+ other_name, other_value, NULL);
+} /* }}} void swap_submit_usage */
+
+#if KERNEL_LINUX || HAVE_PERFSTAT
+__attribute__((nonnull(1)))
+static void swap_submit_derive (char const *type_instance, /* {{{ */
+ derive_t value)
+{
+ value_list_t vl = VALUE_LIST_INIT;
+ value_t v[1];
+
+ v[0].derive = value;
+
+ vl.values = v;
+ vl.values_len = STATIC_ARRAY_SIZE (v);
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "swap", sizeof (vl.plugin));
+ sstrncpy (vl.type, "swap_io", sizeof (vl.type));
+ sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+
+ plugin_dispatch_values (&vl);
+} /* }}} void swap_submit_derive */
+#endif
+
+#if KERNEL_LINUX
+static int swap_read_separate (void) /* {{{ */
+{
+ FILE *fh;
+ char buffer[1024];
+
+ fh = fopen ("/proc/swaps", "r");
+ if (fh == NULL)
+ {
+ char errbuf[1024];
+ WARNING ("swap plugin: fopen (/proc/swaps) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ while (fgets (buffer, sizeof (buffer), fh) != NULL)
+ {
+ char *fields[8];
+ int numfields;
+ char *endptr;
+
+ char path[PATH_MAX];
+ gauge_t total;
+ gauge_t used;
+
+ numfields = strsplit (buffer, fields, STATIC_ARRAY_SIZE (fields));
+ if (numfields != 5)
+ continue;
+
+ sstrncpy (path, fields[0], sizeof (path));
+ escape_slashes (path, sizeof (path));
+
+ errno = 0;
+ endptr = NULL;
+ total = strtod (fields[2], &endptr);
+ if ((endptr == fields[2]) || (errno != 0))
+ continue;
+
+ errno = 0;
+ endptr = NULL;
+ used = strtod (fields[3], &endptr);
+ if ((endptr == fields[3]) || (errno != 0))
+ continue;
+
+ if (total < used)
+ continue;
+
+ swap_submit_usage (path, used, total - used, NULL, NAN);
+ }
+
+ fclose (fh);
+
+ return (0);
+} /* }}} int swap_read_separate */
+
+static int swap_read_combined (void) /* {{{ */
+{
+ FILE *fh;
+ char buffer[1024];
+
+ gauge_t swap_used = NAN;
+ gauge_t swap_cached = NAN;
+ gauge_t swap_free = NAN;
+ gauge_t swap_total = NAN;
+
+ fh = fopen ("/proc/meminfo", "r");
+ if (fh == NULL)
+ {
+ char errbuf[1024];
+ WARNING ("swap plugin: fopen (/proc/meminfo) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ while (fgets (buffer, sizeof (buffer), fh) != NULL)
+ {
+ char *fields[8];
+ int numfields;
+
+ numfields = strsplit (buffer, fields, STATIC_ARRAY_SIZE (fields));
+ if (numfields < 2)
+ continue;
+
+ if (strcasecmp (fields[0], "SwapTotal:") == 0)
+ strtogauge (fields[1], &swap_total);
+ else if (strcasecmp (fields[0], "SwapFree:") == 0)
+ strtogauge (fields[1], &swap_free);
+ else if (strcasecmp (fields[0], "SwapCached:") == 0)
+ strtogauge (fields[1], &swap_cached);
+ }
+
+ fclose (fh);
+
+ if (isnan (swap_total) || isnan (swap_free))
+ return (ENOENT);
+
+ /* Some systems, OpenVZ for example, don't provide SwapCached. */
+ if (isnan (swap_cached))
+ swap_used = swap_total - swap_free;
+ else
+ swap_used = swap_total - (swap_free + swap_cached);
+ assert (!isnan (swap_used));
+
+ if (swap_used < 0.0)
+ return (EINVAL);
+
+ swap_submit_usage (NULL, swap_used, swap_free,
+ isnan (swap_cached) ? NULL : "cached", swap_cached);
+ return (0);
+} /* }}} int swap_read_combined */
+
+static int swap_read_io (void) /* {{{ */
+{
+ FILE *fh;
+ char buffer[1024];
+
+ _Bool old_kernel = 0;
+
+ uint8_t have_data = 0;
+ derive_t swap_in = 0;
+ derive_t swap_out = 0;
+
+ fh = fopen ("/proc/vmstat", "r");
+ if (fh == NULL)
+ {
+ /* /proc/vmstat does not exist in kernels <2.6 */
+ fh = fopen ("/proc/stat", "r");
+ if (fh == NULL)
+ {
+ char errbuf[1024];
+ WARNING ("swap: fopen: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+ else
+ old_kernel = 1;
+ }
+
+ while (fgets (buffer, sizeof (buffer), fh) != NULL)
+ {
+ char *fields[8];
+ int numfields;
+
+ numfields = strsplit (buffer, fields, STATIC_ARRAY_SIZE (fields));
+
+ if (!old_kernel)
+ {
+ if (numfields != 2)
+ continue;
+
+ if (strcasecmp ("pswpin", fields[0]) == 0)
+ {
+ strtoderive (fields[1], &swap_in);
+ have_data |= 0x01;
+ }
+ else if (strcasecmp ("pswpout", fields[0]) == 0)
+ {
+ strtoderive (fields[1], &swap_out);
+ have_data |= 0x02;
+ }
+ }
+ else /* if (old_kernel) */
+ {
+ if (numfields != 3)
+ continue;
+
+ if (strcasecmp ("page", fields[0]) == 0)
+ {
+ strtoderive (fields[1], &swap_in);
+ strtoderive (fields[2], &swap_out);
+ }
+ }
+ } /* while (fgets) */
+
+ fclose (fh);
+
+ if (have_data != 0x03)
+ return (ENOENT);
+
+ if (report_bytes)
+ {
+ swap_in = swap_in * pagesize;
+ swap_out = swap_out * pagesize;
+ }
+
+ swap_submit_derive ("in", swap_in);
+ swap_submit_derive ("out", swap_out);
+
+ return (0);
+} /* }}} int swap_read_io */
+
+static int swap_read (void) /* {{{ */
+{
+ if (report_by_device)
+ swap_read_separate ();
+ else
+ swap_read_combined ();
+
+ swap_read_io ();
+
+ return (0);
+} /* }}} int swap_read */
+/* #endif KERNEL_LINUX */
+
+/*
+ * Under Solaris, two mechanisms can be used to read swap statistics, swapctl
+ * and kstat. The former reads physical space used on a device, the latter
+ * reports the view from the virtual memory system. It was decided that the
+ * kstat-based information should be moved to the "vmem" plugin, but nobody
+ * with enough Solaris experience was available at that time to do this. The
+ * code below is still there for your reference but it won't be activated in
+ * *this* plugin again. --octo
+ */
+#elif 0 && HAVE_LIBKSTAT
+/* kstat-based read function */
+static int swap_read_kstat (void) /* {{{ */
+{
+ gauge_t swap_alloc;
+ gauge_t swap_resv;
+ gauge_t swap_avail;
+
+ struct anoninfo ai;
+
+ if (swapctl (SC_AINFO, &ai) == -1)
+ {
+ char errbuf[1024];
+ ERROR ("swap plugin: swapctl failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ /*
+ * Calculations from:
+ * http://cvs.opensolaris.org/source/xref/on/usr/src/cmd/swap/swap.c
+ * Also see:
+ * http://www.itworld.com/Comp/2377/UIR980701perf/ (outdated?)
+ * /usr/include/vm/anon.h
+ *
+ * In short, swap -s shows: allocated + reserved = used, available
+ *
+ * However, Solaris does not allow to allocated/reserved more than the
+ * available swap (physical memory + disk swap), so the pedant may
+ * prefer: allocated + unallocated = reserved, available
+ *
+ * We map the above to: used + resv = n/a, free
+ *
+ * Does your brain hurt yet? - Christophe Kalt
+ *
+ * Oh, and in case you wonder,
+ * swap_alloc = pagesize * ( ai.ani_max - ai.ani_free );
+ * can suffer from a 32bit overflow.
+ */
+ swap_alloc = (gauge_t) ((ai.ani_max - ai.ani_free) * pagesize);
+ swap_resv = (gauge_t) ((ai.ani_resv + ai.ani_free - ai.ani_max) * pagesize);
+ swap_avail = (gauge_t) ((ai.ani_max - ai.ani_resv) * pagesize);
+
+ swap_submit_usage (NULL, swap_alloc, swap_avail, "reserved", swap_resv);
+ return (0);
+} /* }}} int swap_read_kstat */
+/* #endif 0 && HAVE_LIBKSTAT */
+
+#elif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS
+/* swapctl-based read function */
+static int swap_read (void) /* {{{ */
+{
+ swaptbl_t *s;
+ char *s_paths;
+ int swap_num;
+ int status;
+ int i;
+
+ gauge_t avail = 0;
+ gauge_t total = 0;
+
+ swap_num = swapctl (SC_GETNSWP, NULL);
+ if (swap_num < 0)
+ {
+ ERROR ("swap plugin: swapctl (SC_GETNSWP) failed with status %i.",
+ swap_num);
+ return (-1);
+ }
+ else if (swap_num == 0)
+ return (0);
+
+ /* Allocate and initialize the swaptbl_t structure */
+ s = (swaptbl_t *) smalloc (swap_num * sizeof (swapent_t) + sizeof (struct swaptable));
+ if (s == NULL)
+ {
+ ERROR ("swap plugin: smalloc failed.");
+ return (-1);
+ }
+
+ /* Memory to store the path names. We only use these paths when the
+ * separate option has been configured, but it's easier to just
+ * allocate enough memory in any case. */
+ s_paths = calloc (swap_num, PATH_MAX);
+ if (s_paths == NULL)
+ {
+ ERROR ("swap plugin: malloc failed.");
+ sfree (s);
+ return (-1);
+ }
+ for (i = 0; i < swap_num; i++)
+ s->swt_ent[i].ste_path = s_paths + (i * PATH_MAX);
+ s->swt_n = swap_num;
+
+ status = swapctl (SC_LIST, s);
+ if (status < 0)
+ {
+ char errbuf[1024];
+ ERROR ("swap plugin: swapctl (SC_LIST) failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ sfree (s_paths);
+ sfree (s);
+ return (-1);
+ }
+ else if (swap_num < status)
+ {
+ /* more elements returned than requested */
+ ERROR ("swap plugin: I allocated memory for %i structure%s, "
+ "but swapctl(2) claims to have returned %i. "
+ "I'm confused and will give up.",
+ swap_num, (swap_num == 1) ? "" : "s",
+ status);
+ sfree (s_paths);
+ sfree (s);
+ return (-1);
+ }
+ else if (swap_num > status)
+ /* less elements returned than requested */
+ swap_num = status;
+
+ for (i = 0; i < swap_num; i++)
+ {
+ char path[PATH_MAX];
+ gauge_t this_total;
+ gauge_t this_avail;
+
+ if ((s->swt_ent[i].ste_flags & ST_INDEL) != 0)
+ continue;
+
+ this_total = (gauge_t) (s->swt_ent[i].ste_pages * pagesize);
+ this_avail = (gauge_t) (s->swt_ent[i].ste_free * pagesize);
+
+ /* Shortcut for the "combined" setting (default) */
+ if (!report_by_device)
+ {
+ avail += this_avail;
+ total += this_total;
+ continue;
+ }
+
+ sstrncpy (path, s->swt_ent[i].ste_path, sizeof (path));
+ escape_slashes (path, sizeof (path));
+
+ swap_submit_usage (path, this_total - this_avail, this_avail,
+ NULL, NAN);
+ } /* for (swap_num) */
+
+ if (total < avail)
+ {
+ ERROR ("swap plugin: Total swap space (%g) is less than free swap space (%g).",
+ total, avail);
+ sfree (s_paths);
+ sfree (s);
+ return (-1);
+ }
+
+ /* If the "separate" option was specified (report_by_device == 1), all
+ * values have already been dispatched from within the loop. */
+ if (!report_by_device)
+ swap_submit_usage (NULL, total - avail, avail, NULL, NAN);
+
+ sfree (s_paths);
+ sfree (s);
+ return (0);
+} /* }}} int swap_read */
+/* #endif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS */
+
+#elif HAVE_SWAPCTL && HAVE_SWAPCTL_THREE_ARGS
+static int swap_read (void) /* {{{ */
+{
+ struct swapent *swap_entries;
+ int swap_num;
+ int status;
+ int i;
+
+ gauge_t used = 0;
+ gauge_t total = 0;
+
+ swap_num = swapctl (SWAP_NSWAP, NULL, 0);
+ if (swap_num < 0)
+ {
+ ERROR ("swap plugin: swapctl (SWAP_NSWAP) failed with status %i.",
+ swap_num);
+ return (-1);
+ }
+ else if (swap_num == 0)
+ return (0);
+
+ swap_entries = calloc (swap_num, sizeof (*swap_entries));
+ if (swap_entries == NULL)
+ {
+ ERROR ("swap plugin: calloc failed.");
+ return (-1);
+ }
+
+ status = swapctl (SWAP_STATS, swap_entries, swap_num);
+ if (status != swap_num)
+ {
+ ERROR ("swap plugin: swapctl (SWAP_STATS) failed with status %i.",
+ status);
+ sfree (swap_entries);
+ return (-1);
+ }
+
+#if defined(DEV_BSIZE) && (DEV_BSIZE > 0)
+# define C_SWAP_BLOCK_SIZE ((gauge_t) DEV_BSIZE)
+#else
+# define C_SWAP_BLOCK_SIZE 512.0
+#endif
+
+ /* TODO: Report per-device stats. The path name is available from
+ * swap_entries[i].se_path */
+ for (i = 0; i < swap_num; i++)
+ {
+ if ((swap_entries[i].se_flags & SWF_ENABLE) == 0)
+ continue;
+
+ used += ((gauge_t) swap_entries[i].se_inuse) * C_SWAP_BLOCK_SIZE;
+ total += ((gauge_t) swap_entries[i].se_nblks) * C_SWAP_BLOCK_SIZE;
+ }
+
+ if (total < used)
+ {
+ ERROR ("swap plugin: Total swap space (%g) is less than used swap space (%g).",
+ total, used);
+ return (-1);
+ }
+
+ swap_submit_usage (NULL, used, total - used, NULL, NAN);
+
+ sfree (swap_entries);
+ return (0);
+} /* }}} int swap_read */
+/* #endif HAVE_SWAPCTL && HAVE_SWAPCTL_THREE_ARGS */
+
+#elif defined(VM_SWAPUSAGE)
+static int swap_read (void) /* {{{ */
+{
+ int mib[3];
+ size_t mib_len;
+ struct xsw_usage sw_usage;
+ size_t sw_usage_len;
+
+ mib_len = 2;
+ mib[0] = CTL_VM;
+ mib[1] = VM_SWAPUSAGE;
+
+ sw_usage_len = sizeof (struct xsw_usage);
+
+ if (sysctl (mib, mib_len, &sw_usage, &sw_usage_len, NULL, 0) != 0)
+ return (-1);
+
+ /* The returned values are bytes. */
+ swap_submit_usage (NULL,
+ (gauge_t) sw_usage.xsu_used, (gauge_t) sw_usage.xsu_avail,
+ NULL, NAN);
+
+ return (0);
+} /* }}} int swap_read */
+/* #endif VM_SWAPUSAGE */
+
+#elif HAVE_LIBKVM_GETSWAPINFO
+static int swap_read (void) /* {{{ */
+{
+ struct kvm_swap data_s;
+ int status;
+
+ gauge_t used;
+ gauge_t total;
+
+ if (kvm_obj == NULL)
+ return (-1);
+
+ /* only one structure => only get the grand total, no details */
+ status = kvm_getswapinfo (kvm_obj, &data_s, 1, 0);
+ if (status == -1)
+ return (-1);
+
+ total = (gauge_t) data_s.ksw_total;
+ used = (gauge_t) data_s.ksw_used;
+
+ total *= (gauge_t) kvm_pagesize;
+ used *= (gauge_t) kvm_pagesize;
+
+ swap_submit_usage (NULL, used, total - used, NULL, NAN);
+
+ return (0);
+} /* }}} int swap_read */
+/* #endif HAVE_LIBKVM_GETSWAPINFO */
+
+#elif HAVE_LIBSTATGRAB
+static int swap_read (void) /* {{{ */
+{
+ sg_swap_stats *swap;
+
+ swap = sg_get_swap_stats ();
+ if (swap == NULL)
+ return (-1);
+
+ swap_submit_usage (NULL, (gauge_t) swap->used, (gauge_t) swap->free,
+ NULL, NAN);
+
+ return (0);
+} /* }}} int swap_read */
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif HAVE_PERFSTAT
+static int swap_read (void) /* {{{ */
+{
+ perfstat_memory_total_t pmemory;
+ int status;
+
+ gauge_t total;
+ gauge_t free;
+ gauge_t reserved;
+
+ memset (&pmemory, 0, sizeof (pmemory));
+ status = perfstat_memory_total (NULL, &pmemory, sizeof(perfstat_memory_total_t), 1);
+ if (status < 0)
+ {
+ char errbuf[1024];
+ WARNING ("swap plugin: perfstat_memory_total failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ total = (gauge_t) (pmemory.pgsp_total * pagesize);
+ free = (gauge_t) (pmemory.pgsp_free * pagesize);
+ reserved = (gauge_t) (pmemory.pgsp_rsvd * pagesize);
+
+ swap_submit_usage (NULL, total - free, free, "reserved", reserved);
+ swap_submit_derive ("in", (derive_t) pmemory.pgspins * pagesize);
+ swap_submit_derive ("out", (derive_t) pmemory.pgspouts * pagesize);
+
+ return (0);
+} /* }}} int swap_read */
+#endif /* HAVE_PERFSTAT */
+
+void module_register (void)
+{
+ plugin_register_complex_config ("swap", swap_config);
+ plugin_register_init ("swap", swap_init);
+ plugin_register_read ("swap", swap_read);
+} /* void module_register */
+
+/* vim: set fdm=marker : */