X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fswap.c;h=de9b5f3de430ef08fa034df37aae168a9e0f1057;hb=bf90793e82989b1c36fe8f3b66b9c9fe05c9532d;hp=b8b5f09830629e57dd34c80b739a38e0e7e6cee3;hpb=bc7992ed0693313a2b1fe282a5bf23f1cc9f8e42;p=collectd.git

diff --git a/src/swap.c b/src/swap.c
index b8b5f098..de9b5f3d 100644
--- a/src/swap.c
+++ b/src/swap.c
@@ -1,6 +1,6 @@
 /**
  * collectd - src/swap.c
- * Copyright (C) 2005-2007  Florian octo Forster
+ * Copyright (C) 2005-2009  Florian octo Forster
  *
  * 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
@@ -19,6 +19,16 @@
  *   Florian octo Forster <octo at verplant.org>
  **/
 
+#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"
@@ -26,12 +36,18 @@
 #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
@@ -52,6 +68,10 @@ static unsigned long long pagesize;
 static kstat_t *ksp;
 /* #endif HAVE_LIBKSTAT */
 
+#elif HAVE_SWAPCTL
+/* No global variables */
+/* #endif HAVE_SWAPCTL */
+
 #elif defined(VM_SWAPUSAGE)
 /* No global variables */
 /* #endif defined(VM_SWAPUSAGE) */
@@ -82,6 +102,10 @@ static int swap_init (void)
 		ksp = NULL;
 /* #endif HAVE_LIBKSTAT */
 
+#elif HAVE_SWAPCTL
+	/* No init stuff */
+/* #endif HAVE_SWAPCTL */
+
 #elif defined(VM_SWAPUSAGE)
 	/* No init stuff */
 /* #endif defined(VM_SWAPUSAGE) */
@@ -239,6 +263,84 @@ static int swap_read (void)
 	swap_submit ("reserved", swap_resv);
 /* #endif HAVE_LIBKSTAT */
 
+#elif HAVE_SWAPCTL
+	struct swapent *swap_entries;
+	int swap_num;
+	int status;
+	int i;
+
+	uint64_t used  = 0;
+	uint64_t total = 0;
+
+	/*
+	 * XXX: This is the syntax for the *BSD `swapctl', which has the
+	 * following prototype:
+	 *   swapctl (int cmd, void *arg, int misc);
+	 *
+	 * HP-UX and Solaris (and possibly other UNIXes) provide `swapctl',
+	 * too, but with the following prototype:
+	 *   swapctl (int cmd, void *arg);
+	 *
+	 * Solaris is usually handled in the KSTAT case above. For other UNIXes
+	 * a separate case for the other version of `swapctl' may be necessary.
+	 */
+	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 ((uint64_t) DEV_BSIZE)
+#else
+# define C_SWAP_BLOCK_SIZE ((uint64_t) 512)
+#endif
+
+	for (i = 0; i < swap_num; i++)
+	{
+		if ((swap_entries[i].se_flags & SWF_ENABLE) == 0)
+			continue;
+
+		used  += ((uint64_t) swap_entries[i].se_inuse)
+			* C_SWAP_BLOCK_SIZE;
+		total += ((uint64_t) swap_entries[i].se_nblks)
+			* C_SWAP_BLOCK_SIZE;
+	}
+
+	if (total < used)
+	{
+		ERROR ("swap plugin: Total swap space (%"PRIu64") "
+				"is less than used swap space (%"PRIu64").",
+				total, used);
+		return (-1);
+	}
+
+	swap_submit ("used", (gauge_t) used);
+	swap_submit ("free", (gauge_t) (total - used));
+
+	sfree (swap_entries);
+/* #endif HAVE_SWAPCTL */
+
 #elif defined(VM_SWAPUSAGE)
 	int              mib[3];
 	size_t           mib_len;