X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fdf.c;h=22264d30228f5f8d8f5946beec819f20844cfd7f;hb=1bb1667d220d07f25c584a41be7f3dfcbc1ad04b;hp=462e1c6778fe3aa2f1066de9e3172b548fada012;hpb=8be9c73cc216609a54a1b997aad8a3d646a0a43f;p=collectd.git diff --git a/src/df.c b/src/df.c index 462e1c67..22264d30 100644 --- a/src/df.c +++ b/src/df.c @@ -1,6 +1,6 @@ /** * 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 @@ -33,12 +33,14 @@ # include # 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 # endif # define STATANYFS statfs +# define STATANYFS_STR "statfs" # define BLOCKSIZE(s) (s).f_bsize #else # error "No applicable input method." @@ -50,7 +52,9 @@ static const char *config_keys[] = "MountPoint", "FSType", "IgnoreSelected", - "ReportByDevice" + "ReportByDevice", + "ReportReserved", + "ReportInodes" }; static int config_keys_num = STATIC_ARRAY_SIZE (config_keys); @@ -59,6 +63,8 @@ static ignorelist_t *il_mountpoint = NULL; static ignorelist_t *il_fstype = NULL; static _Bool by_device = false; +static _Bool report_reserved = false; +static _Bool report_inodes = false; static int df_init (void) { @@ -117,11 +123,31 @@ static int df_config (const char *key, const char *value) return (0); } + else if (strcasecmp (key, "ReportReserved") == 0) + { + if (IS_TRUE (value)) + report_reserved = true; + else + report_reserved = false; + + return (0); + } + else if (strcasecmp (key, "ReportInodes") == 0) + { + if (IS_TRUE (value)) + report_inodes = true; + else + report_inodes = false; + + return (0); + } + return (-1); } -static void df_submit (char *df_name, +static void df_submit_two (char *df_name, + const char *type, gauge_t df_used, gauge_t df_free) { @@ -136,11 +162,36 @@ static void df_submit (char *df_name, 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.type)); + sstrncpy (vl.type, type, sizeof (vl.type)); sstrncpy (vl.type_instance, df_name, sizeof (vl.type_instance)); plugin_dispatch_values (&vl); -} /* void df_submit */ +} /* void df_submit_two */ + +__attribute__ ((nonnull(2))) +static void df_submit_one (char *plugin_instance, + const char *type, const char *type_instance, + gauge_t value) +{ + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; + + values[0].gauge = value; + + vl.values = values; + vl.values_len = 1; + sstrncpy (vl.host, hostname_g, sizeof (vl.host)); + sstrncpy (vl.plugin, "df", sizeof (vl.plugin)); + 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_one */ static int df_read (void) { @@ -153,17 +204,18 @@ 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]; + if (ignorelist_match (il_device, (mnt_ptr->spec_device != NULL) ? mnt_ptr->spec_device @@ -177,7 +229,8 @@ static int df_read (void) 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; @@ -186,10 +239,6 @@ static int df_read (void) 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/" */ @@ -223,7 +272,83 @@ static int df_read (void) } } - df_submit (disk_name, df_used, df_free); + blocksize = BLOCKSIZE(statbuf); + + if (report_reserved) + { + uint64_t blk_free; + uint64_t blk_reserved; + uint64_t blk_used; + + /* + * 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; + + 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)); + } + else /* compatibility code */ + { + gauge_t df_free; + gauge_t df_used; + + df_free = statbuf.f_bfree * blocksize; + df_used = (statbuf.f_blocks - statbuf.f_bfree) * blocksize; + + df_submit_two (disk_name, "df", df_used, df_free); + } + + /* 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);