/**
* collectd - src/df.c
- * Copyright (C) 2005-2007 Florian octo Forster
+ * Copyright (C) 2005-2009 Florian octo Forster
+ * Copyright (C) 2009 Paul Sadauskas
*
* 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
*
* Authors:
* Florian octo Forster <octo at verplant.org>
+ * Paul Sadauskas <psadauskas at gmail.com>
**/
#include "collectd.h"
# include <sys/statvfs.h>
# endif
# define STATANYFS statvfs
+# define STATANYFS_STR "statvfs"
# define BLOCKSIZE(s) ((s).f_frsize ? (s).f_frsize : (s).f_bsize)
#elif HAVE_STATFS
# if HAVE_SYS_STATFS_H
# include <sys/statfs.h>
# endif
# define STATANYFS statfs
+# define STATANYFS_STR "statfs"
# define BLOCKSIZE(s) (s).f_bsize
#else
# error "No applicable input method."
"MountPoint",
"FSType",
"IgnoreSelected",
- "ReportByDevice",
- NULL
+ "ReportByDevice",
+ "ReportReserved",
+ "ReportInodes"
};
-static int config_keys_num = 5;
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
static ignorelist_t *il_device = NULL;
static ignorelist_t *il_mountpoint = NULL;
static ignorelist_t *il_fstype = NULL;
-static bool by_device = false;
+static _Bool by_device = 0;
+static _Bool report_inodes = 0;
static int df_init (void)
{
}
else if (strcasecmp (key, "IgnoreSelected") == 0)
{
- if ((strcasecmp (value, "True") == 0)
- || (strcasecmp (value, "Yes") == 0)
- || (strcasecmp (value, "On") == 0))
+ if (IS_TRUE (value))
{
ignorelist_set_invert (il_device, 0);
ignorelist_set_invert (il_mountpoint, 0);
}
return (0);
}
- else if (strcasecmp (key, "ReportByDevice") == 0)
- {
- if ((strcasecmp (value, "True") == 0)
- || (strcasecmp (value, "Yes") == 0)
- || (strcasecmp (value, "On") == 0))
- {
- by_device = false;
- }
+ else if (strcasecmp (key, "ReportByDevice") == 0)
+ {
+ if (IS_TRUE (value))
+ by_device = 1;
+
return (0);
}
+ else if (strcasecmp (key, "ReportInodes") == 0)
+ {
+ if (IS_TRUE (value))
+ report_inodes = 1;
+ else
+ report_inodes = 0;
+
+ return (0);
+ }
+
return (-1);
}
-static void df_submit (char *df_name,
- gauge_t df_used,
- gauge_t df_free)
+__attribute__ ((nonnull(2)))
+static void df_submit_one (char *plugin_instance,
+ const char *type, const char *type_instance,
+ gauge_t value)
{
- value_t values[2];
+ value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- values[0].gauge = df_used;
- values[1].gauge = df_free;
+ values[0].gauge = value;
vl.values = values;
- vl.values_len = 2;
+ vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "df", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
- sstrncpy (vl.type, "df", sizeof (vl.host));
- sstrncpy (vl.type_instance, df_name, sizeof (vl.type_instance));
+ if (plugin_instance != NULL)
+ sstrncpy (vl.plugin_instance, plugin_instance,
+ sizeof (vl.plugin_instance));
+ sstrncpy (vl.type, type, sizeof (vl.type));
+ if (type_instance != NULL)
+ sstrncpy (vl.type_instance, type_instance,
+ sizeof (vl.type_instance));
plugin_dispatch_values (&vl);
-} /* void df_submit */
+} /* void df_submit_one */
static int df_read (void)
{
cu_mount_t *mnt_list;
cu_mount_t *mnt_ptr;
- unsigned long long blocksize;
- gauge_t df_free;
- gauge_t df_used;
- char disk_name[256];
-
mnt_list = NULL;
if (cu_mount_getlist (&mnt_list) == NULL)
+ {
+ ERROR ("df plugin: cu_mount_getlist failed.");
return (-1);
+ }
for (mnt_ptr = mnt_list; mnt_ptr != NULL; mnt_ptr = mnt_ptr->next)
{
+ unsigned long long blocksize;
+ char disk_name[256];
+ uint64_t blk_free;
+ uint64_t blk_reserved;
+ uint64_t blk_used;
+
+ if (ignorelist_match (il_device,
+ (mnt_ptr->spec_device != NULL)
+ ? mnt_ptr->spec_device
+ : mnt_ptr->device))
+ continue;
+ if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
+ continue;
+ if (ignorelist_match (il_fstype, mnt_ptr->type))
+ continue;
+
if (STATANYFS (mnt_ptr->dir, &statbuf) < 0)
{
char errbuf[1024];
- ERROR ("statv?fs failed: %s",
+ ERROR (STATANYFS_STR"(%s) failed: %s",
+ mnt_ptr->dir,
sstrerror (errno, errbuf,
sizeof (errbuf)));
continue;
if (!statbuf.f_blocks)
continue;
- blocksize = BLOCKSIZE(statbuf);
- df_free = statbuf.f_bfree * blocksize;
- df_used = (statbuf.f_blocks - statbuf.f_bfree) * blocksize;
-
if (by_device)
{
- // eg, /dev/hda1 -- strip off the "/dev/"
- strncpy (disk_name, mnt_ptr->device + 5, sizeof (disk_name));
+ /* eg, /dev/hda1 -- strip off the "/dev/" */
+ if (strncmp (mnt_ptr->spec_device, "/dev/", strlen ("/dev/")) == 0)
+ sstrncpy (disk_name, mnt_ptr->spec_device + strlen ("/dev/"), sizeof (disk_name));
+ else
+ sstrncpy (disk_name, mnt_ptr->spec_device, sizeof (disk_name));
+
+ if (strlen(disk_name) < 1)
+ {
+ DEBUG("df: no device name name for mountpoint %s, skipping", mnt_ptr->dir);
+ continue;
+ }
}
else
{
}
}
- if (ignorelist_match (il_device,
- (mnt_ptr->spec_device != NULL)
- ? mnt_ptr->spec_device
- : mnt_ptr->device))
- continue;
- if (ignorelist_match (il_mountpoint, mnt_ptr->dir))
- continue;
- if (ignorelist_match (il_fstype, mnt_ptr->type))
- continue;
+ blocksize = BLOCKSIZE(statbuf);
+
+ /*
+ * Sanity-check for the values in the struct
+ */
+ /* Check for negative "available" byes. For example UFS can
+ * report negative free space for user. Notice. blk_reserved
+ * will start to diminish after this. */
+#if HAVE_STATVFS
+ /* Cast and temporary variable are needed to avoid
+ * compiler warnings.
+ * ((struct statvfs).f_bavail is unsigned (POSIX)) */
+ int64_t signed_bavail = (int64_t) statbuf.f_bavail;
+ if (signed_bavail < 0)
+ statbuf.f_bavail = 0;
+#elif HAVE_STATFS
+ if (statbuf.f_bavail < 0)
+ statbuf.f_bavail = 0;
+#endif
+ /* Make sure that f_blocks >= f_bfree >= f_bavail */
+ if (statbuf.f_bfree < statbuf.f_bavail)
+ statbuf.f_bfree = statbuf.f_bavail;
+ if (statbuf.f_blocks < statbuf.f_bfree)
+ statbuf.f_blocks = statbuf.f_bfree;
- df_submit (disk_name, df_used, df_free);
+ blk_free = (uint64_t) statbuf.f_bavail;
+ blk_reserved = (uint64_t) (statbuf.f_bfree - statbuf.f_bavail);
+ blk_used = (uint64_t) (statbuf.f_blocks - statbuf.f_bfree);
+
+ df_submit_one (disk_name, "df_complex", "free",
+ (gauge_t) (blk_free * blocksize));
+ df_submit_one (disk_name, "df_complex", "reserved",
+ (gauge_t) (blk_reserved * blocksize));
+ df_submit_one (disk_name, "df_complex", "used",
+ (gauge_t) (blk_used * blocksize));
+
+ /* inode handling */
+ if (report_inodes)
+ {
+ uint64_t inode_free;
+ uint64_t inode_reserved;
+ uint64_t inode_used;
+
+ /* Sanity-check for the values in the struct */
+ if (statbuf.f_ffree < statbuf.f_favail)
+ statbuf.f_ffree = statbuf.f_favail;
+ if (statbuf.f_files < statbuf.f_ffree)
+ statbuf.f_files = statbuf.f_ffree;
+
+ inode_free = (uint64_t) statbuf.f_favail;
+ inode_reserved = (uint64_t) (statbuf.f_ffree - statbuf.f_favail);
+ inode_used = (uint64_t) (statbuf.f_files - statbuf.f_ffree);
+
+ df_submit_one (disk_name, "df_inodes", "free",
+ (gauge_t) inode_free);
+ df_submit_one (disk_name, "df_inodes", "reserved",
+ (gauge_t) inode_reserved);
+ df_submit_one (disk_name, "df_inodes", "used",
+ (gauge_t) inode_used);
+ }
}
cu_mount_freelist (mnt_list);
projects / collectd.git / blobdiff