**/
#if HAVE_CONFIG_H
-# include "config.h"
-# undef HAVE_CONFIG_H
+#include "config.h"
+#undef HAVE_CONFIG_H
#endif
-/* avoid swap.h error "Cannot use swapctl in the large files compilation environment" */
+/* 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
+#undef _FILE_OFFSET_BITS
+#undef _LARGEFILE64_SOURCE
#endif
#include "collectd.h"
#include "plugin.h"
#if HAVE_SYS_SWAP_H
-# include <sys/swap.h>
+#include <sys/swap.h>
#endif
#if HAVE_VM_ANON_H
-# include <vm/anon.h>
+#include <vm/anon.h>
#endif
#if HAVE_SYS_PARAM_H
-# include <sys/param.h>
+#include <sys/param.h>
#endif
#if HAVE_SYS_SYSCTL_H
-# include <sys/sysctl.h>
+#include <sys/sysctl.h>
#endif
#if HAVE_SYS_DKSTAT_H
-# include <sys/dkstat.h>
+#include <sys/dkstat.h>
#endif
#if HAVE_KVM_H
-# include <kvm.h>
+#include <kvm.h>
#endif
#if HAVE_STATGRAB_H
-# include <statgrab.h>
+#include <statgrab.h>
#endif
#if HAVE_PERFSTAT
-# include <sys/protosw.h>
-# include <libperfstat.h>
+#include <libperfstat.h>
+#include <sys/protosw.h>
#endif
-#undef MAX
-#define MAX(x,y) ((x) > (y) ? (x) : (y))
+#undef MAX
+#define MAX(x, y) ((x) > (y) ? (x) : (y))
#if KERNEL_LINUX
-# define SWAP_HAVE_REPORT_BY_DEVICE 1
+#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
+#define SWAP_HAVE_REPORT_BY_DEVICE 1
static derive_t pagesize;
static _Bool report_by_device = 0;
/* #endif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS */
/*# endif HAVE_PERFSTAT */
#else
-# error "No applicable input method."
+#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) /* {{{ */
+static int swap_config(oconfig_item_t *ci) /* {{{ */
{
- for (int i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
- if (strcasecmp ("ReportBytes", child->key) == 0)
+ for (int 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);
+ 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.");
+ 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)
+ else if (strcasecmp("ReportByDevice", child->key) == 0)
#if SWAP_HAVE_REPORT_BY_DEVICE
- cf_util_get_boolean (child, &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.");
+ 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);
+ 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) /* {{{ */
+static int swap_init(void) /* {{{ */
{
#if KERNEL_LINUX
- pagesize = (derive_t) sysconf (_SC_PAGESIZE);
+ 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 ();
+ /* getpagesize(3C) tells me this does not fail.. */
+ pagesize = (derive_t)getpagesize();
/* #endif HAVE_SWAPCTL */
#elif defined(VM_SWAPUSAGE)
- /* No init stuff */
+/* No init stuff */
/* #endif defined(VM_SWAPUSAGE) */
#elif HAVE_LIBKVM_GETSWAPINFO
- char errbuf[_POSIX2_LINE_MAX];
+ char errbuf[_POSIX2_LINE_MAX];
- if (kvm_obj != NULL)
- {
- kvm_close (kvm_obj);
- kvm_obj = NULL;
- }
+ if (kvm_obj != NULL) {
+ kvm_close(kvm_obj);
+ kvm_obj = NULL;
+ }
- kvm_pagesize = getpagesize ();
+ kvm_pagesize = getpagesize();
- kvm_obj = kvm_openfiles (NULL, "/dev/null", NULL, O_RDONLY, errbuf);
+ 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);
- }
+ if (kvm_obj == NULL) {
+ ERROR("swap plugin: kvm_openfiles failed, %s", errbuf);
+ return -1;
+ }
/* #endif HAVE_LIBKVM_GETSWAPINFO */
#elif HAVE_LIBSTATGRAB
- /* No init stuff */
+/* No init stuff */
/* #endif HAVE_LIBSTATGRAB */
#elif HAVE_PERFSTAT
- pagesize = getpagesize();
+ pagesize = getpagesize();
#endif /* HAVE_PERFSTAT */
- return (0);
+ 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);
+static void swap_submit_usage(char const *plugin_instance, /* {{{ */
+ gauge_t used, gauge_t free,
+ char const *other_name, gauge_t other_value) {
+ value_list_t vl = VALUE_LIST_INIT;
+
+ vl.values = &(value_t){.gauge = NAN};
+ vl.values_len = 1;
+ 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);
+__attribute__((nonnull(1))) static void
+swap_submit_derive(char const *type_instance, /* {{{ */
+ derive_t value) {
+ value_list_t vl = VALUE_LIST_INIT;
+
+ vl.values = &(value_t){.derive = value};
+ vl.values_len = 1;
+ 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) /* {{{ */
+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 * 1024.0, (total - used) * 1024.0,
- NULL, NAN);
- }
-
- fclose (fh);
-
- return (0);
+ 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 * 1024.0, (total - used) * 1024.0, NULL, NAN);
+ }
+
+ fclose(fh);
+
+ return 0;
} /* }}} int swap_read_separate */
-static int swap_read_combined (void) /* {{{ */
+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 * 1024.0, swap_free * 1024.0,
- isnan (swap_cached) ? NULL : "cached",
- isnan (swap_cached) ? NAN : swap_cached * 1024.0);
- return (0);
+ 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 * 1024.0, swap_free * 1024.0,
+ isnan(swap_cached) ? NULL : "cached",
+ isnan(swap_cached) ? NAN : swap_cached * 1024.0);
+ return 0;
} /* }}} int swap_read_combined */
-static int swap_read_io (void) /* {{{ */
+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);
+ 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) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- if (report_by_device)
- swap_read_separate ();
- else
- swap_read_combined ();
+ if (report_by_device)
+ swap_read_separate();
+ else
+ swap_read_combined();
- swap_read_io ();
+ swap_read_io();
- return (0);
+ return 0;
} /* }}} int swap_read */
/* #endif KERNEL_LINUX */
*/
#elif 0 && HAVE_LIBKSTAT
/* kstat-based read function */
-static int swap_read_kstat (void) /* {{{ */
+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);
+ 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 */
+ /* #endif 0 && HAVE_LIBKSTAT */
#elif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS
/* swapctl-based read function */
-static int swap_read (void) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- swaptbl_t *s;
- char *s_paths;
- int swap_num;
- int status;
-
- 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 = malloc (swap_num * sizeof (swapent_t) + sizeof (struct swaptable));
- if (s == NULL)
- {
- ERROR ("swap plugin: malloc 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: calloc failed.");
- sfree (s);
- return (-1);
- }
- for (int 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 (int 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);
+ swaptbl_t *s;
+ char *s_paths;
+ int swap_num;
+ int status;
+
+ 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 = malloc(swap_num * sizeof(swapent_t) + sizeof(struct swaptable));
+ if (s == NULL) {
+ ERROR("swap plugin: malloc 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: calloc failed.");
+ sfree(s);
+ return -1;
+ }
+ for (int 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 (int 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 */
+ /* #endif HAVE_SWAPCTL && HAVE_SWAPCTL_TWO_ARGS */
#elif HAVE_SWAPCTL && HAVE_SWAPCTL_THREE_ARGS
-static int swap_read (void) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- struct swapent *swap_entries;
- int swap_num;
- int status;
-
- 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);
- }
+ struct swapent *swap_entries;
+ int swap_num;
+ int status;
+
+ 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)
+#define C_SWAP_BLOCK_SIZE ((gauge_t)DEV_BSIZE)
#else
-# define C_SWAP_BLOCK_SIZE 512.0
+#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 (int 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);
- sfree (swap_entries);
- return (-1);
- }
-
- swap_submit_usage (NULL, used, total - used, NULL, NAN);
-
- sfree (swap_entries);
- return (0);
+ /* TODO: Report per-device stats. The path name is available from
+ * swap_entries[i].se_path */
+ for (int 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);
+ sfree(swap_entries);
+ 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 */
+ /* #endif HAVE_SWAPCTL && HAVE_SWAPCTL_THREE_ARGS */
#elif defined(VM_SWAPUSAGE)
-static int swap_read (void) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- int mib[3];
- size_t mib_len;
- struct xsw_usage sw_usage;
- size_t sw_usage_len;
+ 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;
+ mib_len = 2;
+ mib[0] = CTL_VM;
+ mib[1] = VM_SWAPUSAGE;
- sw_usage_len = sizeof (struct xsw_usage);
+ sw_usage_len = sizeof(struct xsw_usage);
- if (sysctl (mib, mib_len, &sw_usage, &sw_usage_len, NULL, 0) != 0)
- return (-1);
+ 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);
+ /* 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);
+ return 0;
} /* }}} int swap_read */
-/* #endif VM_SWAPUSAGE */
+ /* #endif VM_SWAPUSAGE */
#elif HAVE_LIBKVM_GETSWAPINFO
-static int swap_read (void) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- struct kvm_swap data_s;
- int status;
+ struct kvm_swap data_s;
+ int status;
- gauge_t used;
- gauge_t total;
+ gauge_t used;
+ gauge_t total;
- if (kvm_obj == NULL)
- return (-1);
+ 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);
+ /* 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)data_s.ksw_total;
+ used = (gauge_t)data_s.ksw_used;
- total *= (gauge_t) kvm_pagesize;
- used *= (gauge_t) kvm_pagesize;
+ total *= (gauge_t)kvm_pagesize;
+ used *= (gauge_t)kvm_pagesize;
- swap_submit_usage (NULL, used, total - used, NULL, NAN);
+ swap_submit_usage(NULL, used, total - used, NULL, NAN);
- return (0);
+ return 0;
} /* }}} int swap_read */
-/* #endif HAVE_LIBKVM_GETSWAPINFO */
+ /* #endif HAVE_LIBKVM_GETSWAPINFO */
#elif HAVE_LIBSTATGRAB
-static int swap_read (void) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- sg_swap_stats *swap;
+ sg_swap_stats *swap;
- swap = sg_get_swap_stats ();
- if (swap == NULL)
- return (-1);
+ swap = sg_get_swap_stats();
+ if (swap == NULL)
+ return -1;
- swap_submit_usage (NULL, (gauge_t) swap->used, (gauge_t) swap->free,
- NULL, NAN);
+ swap_submit_usage(NULL, (gauge_t)swap->used, (gauge_t)swap->free, NULL, NAN);
- return (0);
+ return 0;
} /* }}} int swap_read */
-/* #endif HAVE_LIBSTATGRAB */
+ /* #endif HAVE_LIBSTATGRAB */
#elif HAVE_PERFSTAT
-static int swap_read (void) /* {{{ */
+static int swap_read(void) /* {{{ */
{
- perfstat_memory_total_t pmemory = { 0 };
- int status;
-
- gauge_t total;
- gauge_t free;
- gauge_t reserved;
-
- 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);
+ perfstat_memory_total_t pmemory = {0};
+ int status;
+
+ gauge_t total;
+ gauge_t free;
+ gauge_t reserved;
+
+ 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(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 : */
projects / collectd.git / blobdiff