dnl Process this file with autoconf to produce a configure script.
- AC_INIT(collectd, 4.0.2)
+ AC_INIT(collectd, 4.0.3)
AC_CONFIG_SRCDIR(src/collectd.c)
AC_CONFIG_HEADERS(src/config.h)
AM_INIT_AUTOMAKE(dist-bzip2)
AC_CHECK_FUNCS(getifaddrs)
# Check for NAN
- nan_type="none"
+ AC_ARG_WITH(nan-emulation, [AS_HELP_STRING([--with-nan-emulation], [use emulated NAN. For crosscompiling only.])],
+ [
+ if test "x$withval" = "xno"; then
+ nan_type="none"
+ else if test "x$withval" = "xyes"; then
+ nan_type="zero"
+ else
+ nan_type="$withval"
+ fi; fi
+ ],
+ [nan_type="none"])
if test "x$nan_type" = "xnone"; then
AC_CACHE_CHECK([whether NAN is defined by default],
[have_nan_default],
)
if test "x$have_nan_default" = "xyes"
then
- nan_type="default"
- AC_DEFINE(NAN_STATIC_DEFAULT, 1,
- [Define if NAN is defined by default and can initialize static variables.])
+ nan_type="default"
fi
fi
if test "x$nan_type" = "xnone"; then
)
if test "x$have_nan_isoc" = "xyes"
then
- nan_type="isoc99"
- AC_DEFINE(NAN_STATIC_ISOC, 1,
- [Define if NAN is defined by __USE_ISOC99 and can initialize static variables.])
+ nan_type="isoc99"
fi
fi
if test "x$nan_type" = "xnone"; then
)
if test "x$have_nan_zero" = "xyes"
then
- nan_type="zero"
- AC_DEFINE(NAN_ZERO_ZERO, 1,
- [Define if NAN can be defined as (0.0 / 0.0)])
+ nan_type="zero"
fi
fi
- if test "x$nan_type" = "xnone"; then
+
+ if test "x$nan_type" = "xdefault"; then
+ AC_DEFINE(NAN_STATIC_DEFAULT, 1,
+ [Define if NAN is defined by default and can initialize static variables.])
+ else if test "x$nan_type" = "xisoc99"; then
+ AC_DEFINE(NAN_STATIC_ISOC, 1,
+ [Define if NAN is defined by __USE_ISOC99 and can initialize static variables.])
+ else if test "x$nan_type" = "xzero"; then
+ AC_DEFINE(NAN_ZERO_ZERO, 1,
+ [Define if NAN can be defined as (0.0 / 0.0)])
+ else
AC_MSG_ERROR([Didn't find out how to statically initialize variables to NAN. Sorry.])
- fi
+ fi; fi; fi
# For mount interface
#AC_CHECK_FUNCS(getfsent getvfsent)
fi
AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
+AC_ARG_WITH(libnetsnmp, [AS_HELP_STRING([--with-libnetsnmp@<:@=PREFIX@:>@], [Path to the Net-SNMPD library.])],
+[
+ if test "x$withval" != "xno" && test "x$withval" != "xyes"
+ then
+ LDFLAGS="$LDFLAGS -L$withval/lib"
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ with_libnetsnmp="yes"
+ fi
+],
+[with_libnetsnmp="yes"])
+if test "x$with_libnetsnmp" = "xyes"
+then
+ AC_CHECK_LIB(netsnmp, init_snmp,
+ [
+ AC_DEFINE(HAVE_LIBSNMP, 1, [Define to 1 if you have the Net-SNMP library (-lnetsnmp).])
+ ], [with_libnetsnmp="no (libnetsnmp not found)"])
+fi
+if test "x$with_libnetsnmp" = "xyes"
+then
+ AC_CHECK_HEADERS(net-snmp/net-snmp-config.h,
+ [
+ AC_DEFINE(HAVE_NET_SNMP_NET_SNMP_CONFIG_H, 1, [Define to 1 if you have the <net-snmp/net-snmp-config.h> header file.])
+ ], [with_libnetsnmp="no (net-snmp/net-snmp-config.h not found)"])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBNETSNMP, test "x$with_libnetsnmp" = "xyes")
+
AC_ARG_WITH(libupsclient, [AS_HELP_STRING([--with-libupsclient@<:@=PREFIX@:>@], [Path to libupsclient.])],
[
if test "x$withval" != "xno" && test "x$withval" != "xyes"
fi
AM_CONDITIONAL(BUILD_WITH_LIBUPSCLIENT, test "x$with_libupsclient" = "xyes")
+### BEGIN of check for libxmms ###
+with_xmms_config="xmms-config"
+with_xmms_prefix=0
+with_xmms_cflags=""
+with_xmms_libs=""
+AC_ARG_WITH(libxmms, [AS_HELP_STRING([--with-libxmms@<:@=PREFIX@:>@], [Path to libxmms.])],
+[
+ if test "x$withval" != "xno" -a "x$withval" != "xyes"
+ then
+ if test -x "$withval/bin/xmms-config"
+ then
+ with_xmms_config="$withval/bin/xmms-config"
+ with_xmms_prefix=1
+ fi
+ fi
+ if test "x$withval" = "xno"
+ then
+ with_libxmms="no"
+ else
+ with_libxmms="yes"
+ fi
+],
+[
+ with_libxmms="yes"
+])
+if test "x$with_libxmms" = "xyes"
+then
+ with_xmms_cflags=`$with_xmms_config --cflags 2>/dev/null`
+ xmms_config_status=$?
+
+ if test $xmms_config_status -ne 0
+ then
+ with_libxmms="no"
+ fi
+fi
+if test "x$with_libxmms" = "xyes"
+then
+ with_xmms_libs=`$with_xmms_config --libs 2>/dev/null`
+ xmms_config_status=$?
+
+ if test $xmms_config_status -ne 0
+ then
+ with_libxmms="no"
+ fi
+fi
+if test "x$with_libxmms" = "xyes"
+then
+ AC_CHECK_LIB(xmms, xmms_remote_get_info,
+ [
+ BUILD_WITH_LIBXMMS_CFLAGS="$with_xmms_cflags"
+ BUILD_WITH_LIBXMMS_LIBS="$with_xmms_libs"
+ AC_SUBST(BUILD_WITH_LIBXMMS_CFLAGS)
+ AC_SUBST(BUILD_WITH_LIBXMMS_LIBS)
+ ],
+ [
+ with_libxmms="no"
+ ],
+ [$with_xmms_libs])
+fi
+with_libxmms_numeric=0
+if test "x$with_libxmms" = "xyes"
+then
+ with_libxmms_numeric=1
+fi
+AC_DEFINE_UNQUOTED(HAVE_LIBXMMS, [$with_libxmms_numeric], [Define to 1 if you have the 'xmms' library (-lxmms).])
+AM_CONDITIONAL(BUILD_WITH_LIBXMMS, test "x$with_libxmms" = "xyes")
+### END of check for libxmms ###
+
# Check for enabled/disabled features
#
AC_COLLECTD([processes], [disable], [module], [processes statistics])
AC_COLLECTD([sensors], [disable], [module], [lm_sensors statistics])
AC_COLLECTD([serial], [disable], [module], [serial statistics])
+AC_COLLECTD([snmp], [disable], [module], [serial statistics])
AC_COLLECTD([logfile], [disable], [module], [logfile log facility])
AC_COLLECTD([swap], [disable], [module], [swap statistics])
AC_COLLECTD([syslog], [disable], [module], [syslog log facility])
AC_COLLECTD([users], [disable], [module], [user count statistics])
AC_COLLECTD([vserver], [disable], [module], [vserver statistics])
AC_COLLECTD([wireless], [disable], [module], [wireless link statistics])
+AC_COLLECTD([xmms], [disable], [module], [wireless link statistics])
AC_OUTPUT(Makefile src/Makefile src/collectd.conf src/liboconfig/Makefile src/liboping/Makefile)
libiptc . . . . . . $with_libiptc
libkstat . . . . . $with_kstat
libmysql . . . . . $with_libmysql
+ libnetsnmp . . . . $with_libnetsnmp
liboconfig . . . . $with_liboconfig
liboping . . . . . $with_liboping
libpcap . . . . . . $with_libpcap
libsensors . . . . $with_lm_sensors
libstatgrab . . . . $with_libstatgrab
libupsclient . . . $with_libupsclient
+ libxmms . . . . . . $with_libxmms
Features:
daemon mode . . . . $enable_daemon
processes . . . . . $enable_processes
sensors . . . . . . $enable_sensors
serial . . . . . . $enable_serial
+ snmp . . . . . . . $enable_snmp
swap . . . . . . . $enable_swap
syslog . . . . . . $enable_syslog
tape . . . . . . . $enable_tape
users . . . . . . . $enable_users
vserver . . . . . . $enable_vserver
wireless . . . . . $enable_wireless
+ xmms . . . . . . . $enable_xmms
EOF
char **values;
time_t first_value;
time_t last_value;
+ enum
+ {
+ FLAG_NONE = 0x00,
+ FLAG_QUEUED = 0x01
+ } flags;
};
typedef struct rrd_cache_s rrd_cache_t;
+struct rrd_queue_s
+{
+ char *filename;
+ struct rrd_queue_s *next;
+};
+typedef struct rrd_queue_s rrd_queue_t;
+
/*
* Private variables
*/
};
static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+/* If datadir is zero, the daemon's basedir is used. If stepsize or heartbeat
+ * is zero a default, depending on the `interval' member of the value list is
+ * being used. */
static char *datadir = NULL;
static int stepsize = 0;
static int heartbeat = 0;
static int rrarows = 1200;
static double xff = 0.1;
+/* XXX: If you need to lock both, cache_lock and queue_lock, at the same time,
+ * ALWAYS lock `cache_lock' first! */
static int cache_timeout = 0;
static int cache_flush_timeout = 0;
static time_t cache_flush_last;
static avl_tree_t *cache = NULL;
static pthread_mutex_t cache_lock = PTHREAD_MUTEX_INITIALIZER;
+static rrd_queue_t *queue_head = NULL;
+static rrd_queue_t *queue_tail = NULL;
+static pthread_t queue_thread = 0;
+static pthread_mutex_t queue_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t queue_cond = PTHREAD_COND_INITIALIZER;
+
+static int do_shutdown = 0;
+
/* * * * * * * * * *
* WARNING: Magic *
* * * * * * * * * */
-static int rra_get (char ***ret)
+
+static void rra_free (int rra_num, char **rra_def)
+{
+ int i;
+
+ for (i = 0; i < rra_num; i++)
+ {
+ sfree (rra_def[i]);
+ }
+ sfree (rra_def);
+} /* void rra_free */
+
+static int rra_get (char ***ret, const value_list_t *vl)
{
- static char **rra_def = NULL;
- static int rra_num = 0;
+ char **rra_def;
+ int rra_num;
int *rts;
int rts_num;
char buffer[64];
- if ((rra_num != 0) && (rra_def != NULL))
+ /* The stepsize we use here: If it is user-set, use it. If not, use the
+ * interval of the value-list. */
+ int ss;
+
+ if (rrarows <= 0)
+ {
+ *ret = NULL;
+ return (-1);
+ }
+
+ ss = (stepsize > 0) ? stepsize : vl->interval;
+ if (ss <= 0)
{
- *ret = rra_def;
- return (rra_num);
+ *ret = NULL;
+ return (-1);
}
/* Use the configured timespans or fall back to the built-in defaults */
if ((rra_def = (char **) malloc ((rra_max + 1) * sizeof (char *))) == NULL)
return (-1);
memset (rra_def, '\0', (rra_max + 1) * sizeof (char *));
-
- if ((stepsize <= 0) || (rrarows <= 0))
- {
- *ret = NULL;
- return (-1);
- }
+ rra_num = 0;
cdp_len = 0;
for (i = 0; i < rts_num; i++)
{
span = rts[i];
- if ((span / stepsize) < rrarows)
+ if ((span / ss) < rrarows)
continue;
if (cdp_len == 0)
cdp_len = 1;
else
cdp_len = (int) floor (((double) span)
- / ((double) (rrarows * stepsize)));
+ / ((double) (rrarows * ss)));
cdp_num = (int) ceil (((double) span)
- / ((double) (cdp_len * stepsize)));
+ / ((double) (cdp_len * ss)));
for (j = 0; j < rra_types_num; j++)
{
*ret = rra_def;
return (rra_num);
-}
+} /* int rra_get */
static void ds_free (int ds_num, char **ds_def)
{
free (ds_def);
}
-static int ds_get (char ***ret, const data_set_t *ds)
+static int ds_get (char ***ret, const data_set_t *ds, const value_list_t *vl)
{
char **ds_def;
int ds_num;
status = snprintf (buffer, sizeof (buffer),
"DS:%s:%s:%i:%s:%s",
- d->name, type, heartbeat,
+ d->name, type,
+ (heartbeat > 0) ? heartbeat : (2 * vl->interval),
min, max);
if ((status < 1) || (status >= sizeof (buffer)))
break;
return (ds_num);
}
-static int rrd_create_file (char *filename, const data_set_t *ds)
+static int rrd_create_file (char *filename, const data_set_t *ds, const value_list_t *vl)
{
char **argv;
int argc;
if (check_create_dir (filename))
return (-1);
- if ((rra_num = rra_get (&rra_def)) < 1)
+ if ((rra_num = rra_get (&rra_def, vl)) < 1)
{
ERROR ("rrd_create_file failed: Could not calculate RRAs");
return (-1);
}
- if ((ds_num = ds_get (&ds_def, ds)) < 1)
+ if ((ds_num = ds_get (&ds_def, ds, vl)) < 1)
{
ERROR ("rrd_create_file failed: Could not calculate DSes");
return (-1);
}
status = snprintf (stepsize_str, sizeof (stepsize_str),
- "%i", stepsize);
+ "%i", (stepsize > 0) ? stepsize : vl->interval);
if ((status < 1) || (status >= sizeof (stepsize_str)))
{
ERROR ("rrdtool plugin: snprintf failed.");
+ free (argv);
+ ds_free (ds_num, ds_def);
+ rra_free (rra_num, rra_def);
return (-1);
}
free (argv);
ds_free (ds_num, ds_def);
+ rra_free (rra_num, rra_def);
return (status);
}
int status;
int i;
- memset (buffer, '\0', sizeof (buffer_len));
+ memset (buffer, '\0', buffer_len);
status = snprintf (buffer, buffer_len, "%u", (unsigned int) vl->time);
if ((status < 1) || (status >= buffer_len))
return (0);
} /* int value_list_to_filename */
-static rrd_cache_t *rrd_cache_insert (const char *filename,
- const char *value, time_t value_time)
+static int rrd_write_to_file (char *filename, char **values, int values_num)
{
- rrd_cache_t *rc = NULL;
- int new_rc = 0;
+ char **argv;
+ int argc;
+ int status;
- if (cache != NULL)
- avl_get (cache, filename, (void *) &rc);
+ if (values_num < 1)
+ return (0);
- if (rc == NULL)
- {
- rc = (rrd_cache_t *) malloc (sizeof (rrd_cache_t));
- if (rc == NULL)
- return (NULL);
- rc->values_num = 0;
- rc->values = NULL;
- rc->first_value = 0;
- rc->last_value = 0;
- new_rc = 1;
- }
+ argc = values_num + 2;
+ argv = (char **) malloc ((argc + 1) * sizeof (char *));
+ if (argv == NULL)
+ return (-1);
- if (rc->last_value >= value_time)
+ argv[0] = "update";
+ argv[1] = filename;
+ memcpy (argv + 2, values, values_num * sizeof (char *));
+ argv[argc] = NULL;
+
+ DEBUG ("rrd_update (argc = %i, argv = %p)", argc, (void *) argv);
+
+ optind = 0; /* bug in librrd? */
+ rrd_clear_error ();
+ status = rrd_update (argc, argv);
+ if (status != 0)
{
- WARNING ("rrdtool plugin: (rc->last_value = %u) >= (value_time = %u)",
- (unsigned int) rc->last_value,
- (unsigned int) value_time);
- return (NULL);
+ WARNING ("rrd_update failed: %s: %s",
+ filename, rrd_get_error ());
+ status = -1;
}
- rc->values = (char **) realloc ((void *) rc->values,
- (rc->values_num + 1) * sizeof (char *));
- if (rc->values == NULL)
+ sfree (argv);
+
+ return (status);
+} /* int rrd_write_cache_entry */
+
+static void *rrd_queue_thread (void *data)
+{
+ while (42)
{
- char errbuf[1024];
- ERROR ("rrdtool plugin: realloc failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- if (cache != NULL)
+ rrd_queue_t *queue_entry;
+ rrd_cache_t *cache_entry;
+ char **values;
+ int values_num;
+ int i;
+
+ /* XXX: If you need to lock both, cache_lock and queue_lock, at
+ * the same time, ALWAYS lock `cache_lock' first! */
+
+ /* wait until an entry is available */
+ pthread_mutex_lock (&queue_lock);
+ while ((queue_head == NULL) && (do_shutdown == 0))
+ pthread_cond_wait (&queue_cond, &queue_lock);
+
+ /* We're in the shutdown phase */
+ if (queue_head == NULL)
{
- void *cache_key = NULL;
- avl_remove (cache, filename, &cache_key, NULL);
- sfree (cache_key);
+ pthread_mutex_unlock (&queue_lock);
+ break;
}
- free (rc);
- return (NULL);
- }
- rc->values[rc->values_num] = strdup (value);
- if (rc->values[rc->values_num] != NULL)
- rc->values_num++;
+ /* Dequeue the first entry */
+ queue_entry = queue_head;
+ if (queue_head == queue_tail)
+ queue_head = queue_tail = NULL;
+ else
+ queue_head = queue_head->next;
- if (rc->values_num == 1)
- rc->first_value = value_time;
- rc->last_value = value_time;
+ /* Unlock the queue again */
+ pthread_mutex_unlock (&queue_lock);
- /* Insert if this is the first value */
- if ((cache != NULL) && (new_rc == 1))
- {
- void *cache_key = strdup (filename);
+ /* We now need the cache lock so the entry isn't updated while
+ * we make a copy of it's values */
+ pthread_mutex_lock (&cache_lock);
- if (cache_key == NULL)
- {
- char errbuf[1024];
- ERROR ("rrdtool plugin: strdup failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- sfree (rc->values[0]);
- sfree (rc->values);
- sfree (rc);
- return (NULL);
- }
+ avl_get (cache, queue_entry->filename, (void *) &cache_entry);
- avl_insert (cache, cache_key, rc);
- }
+ values = cache_entry->values;
+ values_num = cache_entry->values_num;
- DEBUG ("rrd_cache_insert (%s, %s, %u) = %p", filename, value,
- (unsigned int) value_time, (void *) rc);
+ cache_entry->values = NULL;
+ cache_entry->values_num = 0;
+ cache_entry->flags = FLAG_NONE;
- return (rc);
-} /* rrd_cache_t *rrd_cache_insert */
+ pthread_mutex_unlock (&cache_lock);
-static int rrd_write_cache_entry (const char *filename, rrd_cache_t *rc)
-{
- char **argv;
- int argc;
+ /* Write the values to the RRD-file */
+ rrd_write_to_file (queue_entry->filename, values, values_num);
- char *fn;
- int status;
+ for (i = 0; i < values_num; i++)
+ {
+ sfree (values[i]);
+ }
+ sfree (values);
+ sfree (queue_entry->filename);
+ sfree (queue_entry);
+ } /* while (42) */
- int i;
+ pthread_mutex_lock (&cache_lock);
+ avl_destroy (cache);
+ cache = NULL;
+ pthread_mutex_unlock (&cache_lock);
- if (rc->values_num < 1)
- return (0);
+ pthread_exit ((void *) 0);
+ return ((void *) 0);
+} /* void *rrd_queue_thread */
- argc = rc->values_num + 2;
- argv = (char **) malloc ((argc + 1) * sizeof (char *));
- if (argv == NULL)
+static int rrd_queue_cache_entry (const char *filename)
+{
+ rrd_queue_t *queue_entry;
+
+ queue_entry = (rrd_queue_t *) malloc (sizeof (rrd_queue_t));
+ if (queue_entry == NULL)
return (-1);
- fn = strdup (filename);
- if (fn == NULL)
+ queue_entry->filename = strdup (filename);
+ if (queue_entry->filename == NULL)
{
- free (argv);
+ free (queue_entry);
return (-1);
}
- argv[0] = "update";
- argv[1] = fn;
- memcpy (argv + 2, rc->values, rc->values_num * sizeof (char *));
- argv[argc] = NULL;
-
- DEBUG ("rrd_update (argc = %i, argv = %p)", argc, (void *) argv);
+ queue_entry->next = NULL;
- optind = 0; /* bug in librrd? */
- rrd_clear_error ();
- status = rrd_update (argc, argv);
- if (status != 0)
- {
- WARNING ("rrd_update failed: %s: %s",
- filename, rrd_get_error ());
- status = -1;
- }
+ pthread_mutex_lock (&queue_lock);
+ if (queue_tail == NULL)
+ queue_head = queue_entry;
+ else
+ queue_tail->next = queue_entry;
+ queue_tail = queue_entry;
+ pthread_cond_signal (&queue_cond);
+ pthread_mutex_unlock (&queue_lock);
- free (argv);
- free (fn);
- /* Free the value list of `rc' */
- for (i = 0; i < rc->values_num; i++)
- free (rc->values[i]);
- free (rc->values);
- rc->values = NULL;
- rc->values_num = 0;
+ DEBUG ("rrdtool plugin: Put `%s' into the update queue", filename);
- return (status);
-} /* int rrd_write_cache_entry */
+ return (0);
+} /* int rrd_queue_cache_entry */
static void rrd_cache_flush (int timeout)
{
avl_iterator_t *iter;
int i;
- if (cache == NULL)
- return;
-
DEBUG ("Flushing cache, timeout = %i", timeout);
now = time (NULL);
while (avl_iterator_next (iter, (void *) &key, (void *) &rc) == 0)
{
DEBUG ("key = %s; age = %i;", key, now - rc->first_value);
- if ((now - rc->first_value) >= timeout)
+
+ if (rc->flags == FLAG_QUEUED)
+ continue;
+ else if ((now - rc->first_value) < timeout)
+ continue;
+ else if (rc->values_num > 0)
+ {
+ if (rrd_queue_cache_entry (key) == 0)
+ rc->flags = FLAG_QUEUED;
+ }
+ else /* ancient and no values -> waste of memory */
{
keys = (char **) realloc ((void *) keys,
(keys_num + 1) * sizeof (char *));
continue;
}
- rrd_write_cache_entry (keys[i], rc);
- /* rc's value-list is free's by `rrd_write_cache_entry' */
+ assert (rc->values == NULL);
+ assert (rc->values_num == 0);
+
sfree (rc);
sfree (key);
keys[i] = NULL;
cache_flush_last = now;
} /* void rrd_cache_flush */
+static int rrd_cache_insert (const char *filename,
+ const char *value, time_t value_time)
+{
+ rrd_cache_t *rc = NULL;
+ int new_rc = 0;
+ char **values_new;
+
+ pthread_mutex_lock (&cache_lock);
+
+ avl_get (cache, filename, (void *) &rc);
+
+ if (rc == NULL)
+ {
+ rc = (rrd_cache_t *) malloc (sizeof (rrd_cache_t));
+ if (rc == NULL)
+ return (-1);
+ rc->values_num = 0;
+ rc->values = NULL;
+ rc->first_value = 0;
+ rc->last_value = 0;
+ rc->flags = FLAG_NONE;
+ new_rc = 1;
+ }
+
+ if (rc->last_value >= value_time)
+ {
+ pthread_mutex_unlock (&cache_lock);
+ WARNING ("rrdtool plugin: (rc->last_value = %u) >= (value_time = %u)",
+ (unsigned int) rc->last_value,
+ (unsigned int) value_time);
+ return (-1);
+ }
+
+ values_new = (char **) realloc ((void *) rc->values,
+ (rc->values_num + 1) * sizeof (char *));
+ if (values_new == NULL)
+ {
+ char errbuf[1024];
+ void *cache_key = NULL;
+
+ sstrerror (errno, errbuf, sizeof (errbuf));
+
+ avl_remove (cache, filename, &cache_key, NULL);
+ pthread_mutex_unlock (&cache_lock);
+
+ ERROR ("rrdtool plugin: realloc failed: %s", errbuf);
+
+ sfree (cache_key);
+ sfree (rc->values);
+ sfree (rc);
+ return (-1);
+ }
+ rc->values = values_new;
+
+ rc->values[rc->values_num] = strdup (value);
+ if (rc->values[rc->values_num] != NULL)
+ rc->values_num++;
+
+ if (rc->values_num == 1)
+ rc->first_value = value_time;
+ rc->last_value = value_time;
+
+ /* Insert if this is the first value */
+ if (new_rc == 1)
+ {
+ void *cache_key = strdup (filename);
+
+ if (cache_key == NULL)
+ {
+ char errbuf[1024];
+ sstrerror (errno, errbuf, sizeof (errbuf));
+
+ pthread_mutex_unlock (&cache_lock);
+
+ ERROR ("rrdtool plugin: strdup failed: %s", errbuf);
+
+ sfree (rc->values[0]);
+ sfree (rc->values);
+ sfree (rc);
+ return (-1);
+ }
+
+ avl_insert (cache, cache_key, rc);
+ }
+
+ DEBUG ("rrd_cache_insert (%s, %s, %u) = %p", filename, value,
+ (unsigned int) value_time, (void *) rc);
+
+ if ((rc->last_value - rc->first_value) >= cache_timeout)
+ {
+ /* XXX: If you need to lock both, cache_lock and queue_lock, at
+ * the same time, ALWAYS lock `cache_lock' first! */
+ if (rc->flags != FLAG_QUEUED)
+ {
+ if (rrd_queue_cache_entry (filename) == 0)
+ rc->flags = FLAG_QUEUED;
+ }
+ else
+ {
+ DEBUG ("rrdtool plugin: `%s' is already queued.", filename);
+ }
+ }
+
+ if ((cache_timeout > 0) &&
+ ((time (NULL) - cache_flush_last) > cache_flush_timeout))
+ rrd_cache_flush (cache_flush_timeout);
+
+
+ pthread_mutex_unlock (&cache_lock);
+
+ return (0);
+} /* int rrd_cache_insert */
+
static int rrd_write (const data_set_t *ds, const value_list_t *vl)
{
struct stat statbuf;
char filename[512];
char values[512];
- rrd_cache_t *rc;
- time_t now;
+ int status;
if (value_list_to_filename (filename, sizeof (filename), ds, vl) != 0)
return (-1);
{
if (errno == ENOENT)
{
- if (rrd_create_file (filename, ds))
+ if (rrd_create_file (filename, ds, vl))
return (-1);
}
else
return (-1);
}
- pthread_mutex_lock (&cache_lock);
- rc = rrd_cache_insert (filename, values, vl->time);
- if (rc == NULL)
- {
- pthread_mutex_unlock (&cache_lock);
- return (-1);
- }
-
- if (cache == NULL)
- {
- rrd_write_cache_entry (filename, rc);
- /* rc's value-list is free's by `rrd_write_cache_entry' */
- sfree (rc);
- pthread_mutex_unlock (&cache_lock);
- return (0);
- }
-
- now = time (NULL);
-
- DEBUG ("age (%s) = %i", filename, now - rc->first_value);
+ status = rrd_cache_insert (filename, values, vl->time);
- /* `rc' is not free'd here, because we'll likely reuse it. If not, then
- * the next flush will remove this entry. */
- if ((now - rc->first_value) >= cache_timeout)
- rrd_write_cache_entry (filename, rc);
-
- if ((now - cache_flush_last) >= cache_flush_timeout)
- rrd_cache_flush (cache_flush_timeout);
-
- pthread_mutex_unlock (&cache_lock);
- return (0);
+ return (status);
} /* int rrd_write */
static int rrd_config (const char *key, const char *value)
}
else if (strcasecmp ("StepSize", key) == 0)
{
- int tmp = atoi (value);
- if (tmp <= 0)
- {
- fprintf (stderr, "rrdtool: `StepSize' must "
- "be greater than 0.\n");
- return (1);
- }
- stepsize = tmp;
+ stepsize = atoi (value);
+ if (stepsize < 0)
+ stepsize = 0;
}
else if (strcasecmp ("HeartBeat", key) == 0)
{
- int tmp = atoi (value);
- if (tmp <= 0)
- {
- fprintf (stderr, "rrdtool: `HeartBeat' must "
- "be greater than 0.\n");
- return (1);
- }
- heartbeat = tmp;
+ heartbeat = atoi (value);
+ if (heartbeat < 0)
+ heartbeat = 0;
}
else if (strcasecmp ("RRARows", key) == 0)
{
{
pthread_mutex_lock (&cache_lock);
rrd_cache_flush (-1);
- if (cache != NULL)
- avl_destroy (cache);
- cache = NULL;
pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_lock (&queue_lock);
+ do_shutdown = 1;
+ pthread_cond_signal (&queue_cond);
+ pthread_mutex_unlock (&queue_lock);
+
return (0);
} /* int rrd_shutdown */
static int rrd_init (void)
{
- if (stepsize <= 0)
- stepsize = interval_g;
+ int status;
+
+ if (stepsize < 0)
+ stepsize = 0;
if (heartbeat <= 0)
- heartbeat = 2 * interval_g;
+ {
+ if (stepsize > 0)
+ heartbeat = 2 * stepsize;
+ else
+ heartbeat = 0;
+ }
- if (heartbeat < interval_g)
+ if ((heartbeat > 0) && (heartbeat < interval_g))
WARNING ("rrdtool plugin: Your `heartbeat' is "
"smaller than your `interval'. This will "
"likely cause problems.");
- else if (stepsize < interval_g)
+ else if ((stepsize > 0) && (stepsize < interval_g))
WARNING ("rrdtool plugin: Your `stepsize' is "
"smaller than your `interval'. This will "
"create needlessly big RRD-files.");
+ /* Set the cache up */
pthread_mutex_lock (&cache_lock);
+
+ cache = avl_create ((int (*) (const void *, const void *)) strcmp);
+ if (cache == NULL)
+ {
+ ERROR ("rrdtool plugin: avl_create failed.");
+ return (-1);
+ }
+
+ cache_flush_last = time (NULL);
if (cache_timeout < 2)
{
cache_timeout = 0;
cache_flush_timeout = 0;
}
- else
- {
- if (cache_flush_timeout < cache_timeout)
- cache_flush_timeout = 10 * cache_timeout;
+ else if (cache_flush_timeout < cache_timeout)
+ cache_flush_timeout = 10 * cache_timeout;
- cache = avl_create ((int (*) (const void *, const void *)) strcmp);
- cache_flush_last = time (NULL);
- plugin_register_shutdown ("rrdtool", rrd_shutdown);
- }
pthread_mutex_unlock (&cache_lock);
+ status = pthread_create (&queue_thread, NULL, rrd_queue_thread, NULL);
+ if (status != 0)
+ {
+ ERROR ("rrdtool plugin: Cannot create queue-thread.");
+ return (-1);
+ }
+
DEBUG ("rrdtool plugin: rrd_init: datadir = %s; stepsize = %i;"
" heartbeat = %i; rrarows = %i; xff = %lf;",
(datadir == NULL) ? "(null)" : datadir,
config_keys, config_keys_num);
plugin_register_init ("rrdtool", rrd_init);
plugin_register_write ("rrdtool", rrd_write);
+ plugin_register_shutdown ("rrdtool", rrd_shutdown);
}
projects / collectd.git / commitdiff