2 * collectd - src/perl.c
3 * Copyright (C) 2007 Sebastian Harl
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Sebastian Harl <sh at tokkee.org>
23 * This plugin embeds a Perl interpreter into collectd and provides an
24 * interface for collectd plugins written in perl.
29 #include "configfile.h"
36 /* Some versions of Perl define their own version of DEBUG... :-/ */
41 /* ... while we want the definition found in plugin.h. */
47 #define PLUGIN_WRITE 2
48 #define PLUGIN_SHUTDOWN 3
51 #define PLUGIN_TYPES 5
53 #define PLUGIN_DATASET 255
55 #define log_debug(...) DEBUG ("perl: " __VA_ARGS__)
56 #define log_warn(...) WARNING ("perl: " __VA_ARGS__)
57 #define log_err(...) ERROR ("perl: " __VA_ARGS__)
60 /* this is defined in DynaLoader.a */
61 void boot_DynaLoader (PerlInterpreter *, CV *);
63 static XS (Collectd_plugin_register);
64 static XS (Collectd_plugin_unregister);
65 static XS (Collectd_plugin_dispatch_values);
66 static XS (Collectd_plugin_log);
90 /* valid configuration file keys */
91 static const char *config_keys[] =
97 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
99 static PerlInterpreter *perl = NULL;
101 static char base_name[DATA_MAX_NAME_LEN] = "";
103 static char *plugin_types[] = { "init", "read", "write", "shutdown" };
104 static HV *plugins[PLUGIN_TYPES];
105 static HV *data_sets;
112 { "Collectd::plugin_register", Collectd_plugin_register },
113 { "Collectd::plugin_unregister", Collectd_plugin_unregister },
114 { "Collectd::plugin_dispatch_values", Collectd_plugin_dispatch_values },
115 { "Collectd::plugin_log", Collectd_plugin_log },
121 * Helper functions for data type conversion.
136 static int hv2data_source (HV *hash, data_source_t *ds)
140 if ((NULL == hash) || (NULL == ds))
143 if (NULL != (tmp = Perl_hv_fetch (perl, hash, "name", 4, 0))) {
144 strncpy (ds->name, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
145 ds->name[DATA_MAX_NAME_LEN - 1] = '\0';
148 log_err ("hv2data_source: No DS name given.");
152 if (NULL != (tmp = Perl_hv_fetch (perl, hash, "type", 4, 0))) {
153 ds->type = SvIV (*tmp);
155 if ((DS_TYPE_COUNTER != ds->type) && (DS_TYPE_GAUGE != ds->type)) {
156 log_err ("hv2data_source: Invalid DS type.");
161 ds->type = DS_TYPE_COUNTER;
164 if (NULL != (tmp = Perl_hv_fetch (perl, hash, "min", 3, 0)))
165 ds->min = SvNV (*tmp);
169 if (NULL != (tmp = Perl_hv_fetch (perl, hash, "max", 3, 0)))
170 ds->max = SvNV (*tmp);
174 } /* static data_source_t *hv2data_source (HV *) */
176 static int av2value (char *name, AV *array, value_t *value, int len)
180 ds_types_t *ds = NULL;
184 if ((NULL == name) || (NULL == array) || (NULL == value))
187 if (Perl_av_len (perl, array) < len - 1)
188 len = Perl_av_len (perl, array) + 1;
193 tmp = Perl_hv_fetch (perl, data_sets, name, strlen (name), 0);
195 log_err ("av2value: No dataset for \"%s\".", name);
198 ds = (ds_types_t *)SvIV ((SV *)SvRV (*tmp));
201 log_warn ("av2value: Value length exceeds data set length.");
205 for (i = 0; i < len; ++i) {
206 SV **tmp = Perl_av_fetch (perl, array, i, 0);
209 if (DS_TYPE_COUNTER == ds->values[i])
210 value[i].counter = SvIV (*tmp);
212 value[i].gauge = SvNV (*tmp);
219 } /* static int av2value (char *, AV *, value_t *, int) */
221 static int data_set2av (data_set_t *ds, AV *array)
225 if ((NULL == ds) || (NULL == array))
228 Perl_av_extend (perl, array, ds->ds_num);
230 for (i = 0; i < ds->ds_num; ++i) {
231 HV *source = Perl_newHV (perl);
233 if (NULL == Perl_hv_store (perl, source, "name", 4,
234 Perl_newSVpv (perl, ds->ds[i].name, 0), 0))
237 if (NULL == Perl_hv_store (perl, source, "type", 4,
238 Perl_newSViv (perl, ds->ds[i].type), 0))
241 if (! isnan (ds->ds[i].min))
242 if (NULL == Perl_hv_store (perl, source, "min", 3,
243 Perl_newSVnv (perl, ds->ds[i].min), 0))
246 if (! isnan (ds->ds[i].max))
247 if (NULL == Perl_hv_store (perl, source, "max", 3,
248 Perl_newSVnv (perl, ds->ds[i].max), 0))
251 if (NULL == Perl_av_store (perl, array, i,
252 Perl_newRV_noinc (perl, (SV *)source)))
256 } /* static int data_set2av (data_set_t *, AV *) */
258 static int value_list2hv (value_list_t *vl, data_set_t *ds, HV *hash)
265 if ((NULL == vl) || (NULL == ds) || (NULL == hash))
268 len = vl->values_len;
270 if (ds->ds_num < len) {
271 log_warn ("value2av: Value length exceeds data set length.");
275 values = Perl_newAV (perl);
276 Perl_av_extend (perl, values, len - 1);
278 for (i = 0; i < len; ++i) {
281 if (DS_TYPE_COUNTER == ds->ds[i].type)
282 val = Perl_newSViv (perl, vl->values[i].counter);
284 val = Perl_newSVnv (perl, vl->values[i].gauge);
286 if (NULL == Perl_av_store (perl, values, i, val)) {
287 Perl_av_undef (perl, values);
292 if (NULL == Perl_hv_store (perl, hash, "values", 6,
293 Perl_newRV_noinc (perl, (SV *)values), 0))
297 if (NULL == Perl_hv_store (perl, hash, "time", 4,
298 Perl_newSViv (perl, vl->time), 0))
301 if ('\0' != vl->host[0])
302 if (NULL == Perl_hv_store (perl, hash, "host", 4,
303 Perl_newSVpv (perl, vl->host, 0), 0))
306 if ('\0' != vl->plugin[0])
307 if (NULL == Perl_hv_store (perl, hash, "plugin", 6,
308 Perl_newSVpv (perl, vl->plugin, 0), 0))
311 if ('\0' != vl->plugin_instance[0])
312 if (NULL == Perl_hv_store (perl, hash, "plugin_instance", 15,
313 Perl_newSVpv (perl, vl->plugin_instance, 0), 0))
316 if ('\0' != vl->type_instance[0])
317 if (NULL == Perl_hv_store (perl, hash, "type_instance", 13,
318 Perl_newSVpv (perl, vl->type_instance, 0), 0))
321 } /* static int value2av (value_list_t *, data_set_t *, HV *) */
325 * Internal functions.
328 static char *get_module_name (char *buf, size_t buf_len, const char *module) {
330 if (base_name[0] == '\0')
331 status = snprintf (buf, buf_len, "%s", module);
333 status = snprintf (buf, buf_len, "%s::%s", base_name, module);
334 if ((status < 0) || (status >= buf_len))
338 } /* char *get_module_name */
341 * Add a new plugin with the given name.
343 static int pplugin_register (int type, const char *name, SV *sub)
347 if ((type < 0) || (type >= PLUGIN_TYPES))
353 p = (pplugin_t *)smalloc (sizeof (pplugin_t));
354 /* this happens during parsing of config file,
355 * thus interval_g is not set correctly */
358 p->sub = Perl_newSVsv (perl, sub);
360 if (NULL == Perl_hv_store (perl, plugins[type], name, strlen (name),
361 Perl_sv_setref_pv (perl, Perl_newSV (perl, 0), 0, p), 0)) {
362 log_debug ("pplugin_register: Failed to add plugin \"%s\" (\"%s\")",
363 name, SvPV_nolen (sub));
364 Perl_sv_free (perl, p->sub);
369 } /* static int pplugin_register (int, char *, SV *) */
372 * Removes the plugin with the given name and frees any ressources.
374 static int pplugin_unregister (int type, char *name)
378 if ((type < 0) || (type >= PLUGIN_TYPES))
384 /* freeing the allocated memory of the element itself (pplugin_t *) causes
385 * a segfault during perl_destruct () thus I assume perl somehow takes
388 tmp = Perl_hv_delete (perl, plugins[type], name, strlen (name), 0);
390 pplugin_t *p = (pplugin_t *)SvIV ((SV *)SvRV (tmp));
391 Perl_sv_free (perl, p->sub);
394 } /* static int pplugin_unregister (char *) */
397 * Add a plugin's data set definition.
399 static int pplugin_register_data_set (char *name, AV *dataset)
404 data_source_t *ds = NULL;
405 data_set_t *set = NULL;
407 ds_types_t *types = NULL;
409 if ((NULL == name) || (NULL == dataset))
412 len = Perl_av_len (perl, dataset);
417 ds = (data_source_t *)smalloc ((len + 1) * sizeof (data_source_t));
418 set = (data_set_t *)smalloc (sizeof (data_set_t));
420 types = (ds_types_t *)smalloc (sizeof (ds_types_t));
421 types->len = len + 1;
422 types->values = (int *)smalloc ((types->len) * sizeof (int));
424 for (i = 0; i <= len; ++i) {
425 SV **elem = Perl_av_fetch (perl, dataset, i, 0);
430 if (! (SvROK (*elem) && (SVt_PVHV == SvTYPE (SvRV (*elem))))) {
431 log_err ("pplugin_register_data_set: Invalid data source.");
435 if (-1 == hv2data_source ((HV *)SvRV (*elem), &ds[i]))
438 types->values[i] = ds[i].type;
439 log_debug ("pplugin_register_data_set: "
440 "DS.name = \"%s\", DS.type = %i, DS.min = %f, DS.max = %f",
441 ds[i].name, ds[i].type, ds[i].min, ds[i].max);
444 if (NULL == Perl_hv_store (perl, data_sets, name, strlen (name),
445 Perl_sv_setref_pv (perl, Perl_newSV (perl, 0), 0, types), 0))
448 strncpy (set->type, name, DATA_MAX_NAME_LEN);
449 set->type[DATA_MAX_NAME_LEN - 1] = '\0';
451 set->ds_num = len + 1;
453 return plugin_register_data_set (set);
454 } /* static int pplugin_register_data_set (char *, SV *) */
457 * Remove a plugin's data set definition.
459 static int pplugin_unregister_data_set (char *name)
466 /* freeing the allocated memory of the element itself (ds_types_t *)
467 * causes a segfault during perl_destruct () thus I assume perl somehow
468 * takes care of this... */
470 tmp = Perl_hv_delete (perl, data_sets, name, strlen (name), 0);
472 ds_types_t *ds = (ds_types_t *)SvIV ((SV *)SvRV (tmp));
475 return plugin_unregister_data_set (name);
476 } /* static int pplugin_unregister_data_set (char *) */
479 * Submit the values to the write functions.
483 * values => [ @values ],
487 * plugin_instance => $pinstance,
488 * type_instance => $tinstance,
491 static int pplugin_dispatch_values (char *name, HV *values)
493 value_list_t list = VALUE_LIST_INIT;
500 if ((NULL == name) || (NULL == values))
503 if ((NULL == (tmp = Perl_hv_fetch (perl, values, "values", 6, 0)))
504 || (! (SvROK (*tmp) && (SVt_PVAV == SvTYPE (SvRV (*tmp)))))) {
505 log_err ("pplugin_dispatch_values: No valid values given.");
510 AV *array = (AV *)SvRV (*tmp);
511 int len = Perl_av_len (perl, array) + 1;
513 val = (value_t *)smalloc (len * sizeof (value_t));
515 list.values_len = av2value (name, (AV *)SvRV (*tmp), val, len);
518 if (-1 == list.values_len) {
524 if (NULL != (tmp = Perl_hv_fetch (perl, values, "time", 4, 0))) {
525 list.time = (time_t)SvIV (*tmp);
528 list.time = time (NULL);
531 if (NULL != (tmp = Perl_hv_fetch (perl, values, "host", 4, 0))) {
532 strncpy (list.host, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
533 list.host[DATA_MAX_NAME_LEN - 1] = '\0';
536 strcpy (list.host, hostname_g);
539 if (NULL != (tmp = Perl_hv_fetch (perl, values, "plugin", 6, 0))) {
540 strncpy (list.plugin, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
541 list.plugin[DATA_MAX_NAME_LEN - 1] = '\0';
544 if (NULL != (tmp = Perl_hv_fetch (perl, values,
545 "plugin_instance", 15, 0))) {
546 strncpy (list.plugin_instance, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
547 list.plugin_instance[DATA_MAX_NAME_LEN - 1] = '\0';
550 if (NULL != (tmp = Perl_hv_fetch (perl, values, "type_instance", 13, 0))) {
551 strncpy (list.type_instance, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
552 list.type_instance[DATA_MAX_NAME_LEN - 1] = '\0';
555 ret = plugin_dispatch_values (name, &list);
559 } /* static int pplugin_dispatch_values (char *, HV *) */
562 * Call a plugin's working function.
564 static int pplugin_call (int type, char *name, SV *sub, va_list ap)
567 I32 xflags = G_NOARGS;
573 if ((type < 0) || (type >= PLUGIN_TYPES))
581 if (PLUGIN_WRITE == type) {
583 * $_[0] = $plugin_type;
598 * values => [ $v1, ... ],
602 * plugin_instance => $instance,
603 * type_instance => $type_instance
609 AV *pds = Perl_newAV (perl);
610 HV *pvl = Perl_newHV (perl);
612 ds = va_arg (ap, data_set_t *);
613 vl = va_arg (ap, value_list_t *);
615 if (-1 == data_set2av (ds, pds))
618 if (-1 == value_list2hv (vl, ds, pvl))
621 XPUSHs (sv_2mortal (Perl_newSVpv (perl, ds->type, 0)));
622 XPUSHs (sv_2mortal (Perl_newRV_noinc (perl, (SV *)pds)));
623 XPUSHs (sv_2mortal (Perl_newRV_noinc (perl, (SV *)pvl)));
627 else if (PLUGIN_LOG == type) {
633 XPUSHs (sv_2mortal (Perl_newSViv (perl, va_arg (ap, int))));
634 XPUSHs (sv_2mortal (Perl_newSVpv (perl, va_arg (ap, char *), 0)));
641 /* prevent an endless loop */
642 if (PLUGIN_LOG != type)
643 log_debug ("pplugin_call: executing %s::%s->%s()",
644 base_name, name, plugin_types[type]);
646 retvals = Perl_call_sv (perl, sub, G_SCALAR | xflags);
650 if (PLUGIN_LOG != type)
651 log_warn ("pplugin_call: "
652 "%s::%s->%s() returned void - assuming true",
653 base_name, name, plugin_types[type]);
665 } /* static int pplugin_call (int, char *, SV *, va_list) */
668 * Call all working functions of the given type.
670 static int pplugin_call_all (int type, ...)
677 if ((type < 0) || (type >= PLUGIN_TYPES))
680 if (0 == Perl_hv_iterinit (perl, plugins[type]))
683 while (NULL != (tmp = Perl_hv_iternextsv (perl, plugins[type],
692 p = (pplugin_t *)SvIV ((SV *)SvRV (tmp));
694 if (p->wait_left > 0)
695 p->wait_left -= interval_g;
697 if (p->wait_left > 0)
700 if (0 == (status = pplugin_call (type, plugin, p->sub, ap))) {
702 p->wait_time = interval_g;
704 else if (PLUGIN_READ == type) {
705 p->wait_left = p->wait_time;
708 if (p->wait_time > 86400)
709 p->wait_time = 86400;
711 log_warn ("%s->read() failed. Will suspend it for %i seconds.",
712 plugin, p->wait_left);
714 else if (PLUGIN_INIT == type) {
717 log_err ("%s->init() failed. Plugin will be disabled.",
720 for (i = 0; i < PLUGIN_TYPES; ++i)
721 pplugin_unregister (i, plugin);
723 else if (PLUGIN_LOG != type) {
724 log_warn ("%s->%s() failed with status %i.",
725 plugin, plugin_types[type], status);
731 } /* static int pplugin_call_all (int, ...) */
739 * Collectd::plugin_register (type, name, data).
742 * init, read, write, shutdown, data set
748 * reference to the plugin's subroutine that does the work or the data set
751 static XS (Collectd_plugin_register)
761 log_err ("Usage: Collectd::plugin_register(type, name, data)");
765 log_debug ("Collectd::plugin_register: "
766 "type = \"%i\", name = \"%s\", \"%s\"",
767 (int)SvIV (ST (0)), SvPV_nolen (ST (1)), SvPV_nolen (ST (2)));
769 type = (int)SvIV (ST (0));
772 if ((type >= 0) && (type < PLUGIN_TYPES)
773 && SvROK (data) && (SVt_PVCV == SvTYPE (SvRV (data)))) {
774 ret = pplugin_register (type, SvPV_nolen (ST (1)), data);
776 else if ((type == PLUGIN_DATASET)
777 && SvROK (data) && (SVt_PVAV == SvTYPE (SvRV (data)))) {
778 ret = pplugin_register_data_set (SvPV_nolen (ST (1)),
782 log_err ("Collectd::plugin_register: Invalid data.");
790 } /* static XS (Collectd_plugin_register) */
793 * Collectd::plugin_unregister (type, name).
796 * init, read, write, shutdown, data set
801 static XS (Collectd_plugin_unregister)
809 log_err ("Usage: Collectd::plugin_unregister(type, name)");
813 log_debug ("Collectd::plugin_unregister: type = \"%i\", name = \"%s\"",
814 (int)SvIV (ST (0)), SvPV_nolen (ST (1)));
816 type = (int)SvIV (ST (0));
818 if ((type >= 0) && (type < PLUGIN_TYPES)) {
819 ret = pplugin_unregister (type, SvPV_nolen (ST (1)));
821 else if (type == PLUGIN_DATASET) {
822 ret = pplugin_unregister_data_set (SvPV_nolen (ST (1)));
825 log_err ("Collectd::plugin_unregister: Invalid type.");
833 } /* static XS (Collectd_plugin_unregister) */
836 * Collectd::plugin_dispatch_values (name, values).
842 * value list to submit
844 static XS (Collectd_plugin_dispatch_values)
853 log_err ("Usage: Collectd::plugin_dispatch_values(name, values)");
857 log_debug ("Collectd::plugin_dispatch_values: "
858 "name = \"%s\", values=\"%s\"",
859 SvPV_nolen (ST (0)), SvPV_nolen (ST (1)));
863 if (! (SvROK (values) && (SVt_PVHV == SvTYPE (SvRV (values))))) {
864 log_err ("Collectd::plugin_dispatch_values: Invalid values.");
868 if ((NULL == ST (0)) || (NULL == values))
871 ret = pplugin_dispatch_values (SvPV_nolen (ST (0)), (HV *)SvRV (values));
877 } /* static XS (Collectd_plugin_dispatch_values) */
880 * Collectd::plugin_log (level, message).
883 * log level (LOG_DEBUG, ... LOG_ERR)
888 static XS (Collectd_plugin_log)
893 log_err ("Usage: Collectd::plugin_log(level, message)");
897 log_debug ("Collectd::plugin_log: level = %i, message = \"%s\"",
898 SvIV (ST (0)), SvPV_nolen (ST (1)));
899 plugin_log (SvIV (ST (0)), SvPV_nolen (ST (1)));
901 } /* static XS (Collectd_plugin_log) */
904 * Collectd::bootstrap ().
906 static XS (boot_Collectd)
909 char *file = __FILE__;
916 { "Collectd::TYPE_INIT", Perl_newSViv (perl, PLUGIN_INIT) },
917 { "Collectd::TYPE_READ", Perl_newSViv (perl, PLUGIN_READ) },
918 { "Collectd::TYPE_WRITE", Perl_newSViv (perl, PLUGIN_WRITE) },
919 { "Collectd::TYPE_SHUTDOWN", Perl_newSViv (perl, PLUGIN_SHUTDOWN) },
920 { "Collectd::TYPE_LOG", Perl_newSViv (perl, PLUGIN_LOG) },
921 { "Collectd::TYPE_DATASET", Perl_newSViv (perl, PLUGIN_DATASET) },
922 { "Collectd::DS_TYPE_COUNTER", Perl_newSViv (perl, DS_TYPE_COUNTER) },
923 { "Collectd::DS_TYPE_GAUGE", Perl_newSViv (perl, DS_TYPE_GAUGE) },
924 { "Collectd::LOG_ERR", Perl_newSViv (perl, LOG_ERR) },
925 { "Collectd::LOG_WARNING", Perl_newSViv (perl, LOG_WARNING) },
926 { "Collectd::LOG_NOTICE", Perl_newSViv (perl, LOG_NOTICE) },
927 { "Collectd::LOG_INFO", Perl_newSViv (perl, LOG_INFO) },
928 { "Collectd::LOG_DEBUG", Perl_newSViv (perl, LOG_DEBUG) },
936 if ((1 > items) || (2 < items)) {
937 log_err ("Usage: Collectd::bootstrap(name[, version])");
941 XS_VERSION_BOOTCHECK;
944 for (i = 0; NULL != api[i].f; ++i)
945 Perl_newXS (perl, api[i].name, api[i].f, file);
947 stash = Perl_gv_stashpv (perl, "Collectd", 1);
949 /* export "constants" */
950 for (i = 0; NULL != consts[i].value; ++i)
951 Perl_newCONSTSUB (perl, stash, consts[i].name, consts[i].value);
953 } /* static XS (boot_Collectd) */
957 * Interface to collectd.
960 static int perl_config (const char *key, const char *value)
962 assert (NULL != perl);
964 log_debug ("perl_config: key = \"%s\", value=\"%s\"", key, value);
966 if (0 == strcasecmp (key, "LoadPlugin")) {
967 char module_name[DATA_MAX_NAME_LEN];
969 if (get_module_name (module_name, sizeof (module_name), value)
971 log_err ("Invalid module name %s", value);
973 } /* if (get_module_name == NULL) */
975 log_debug ("perl_config: loading perl plugin \"%s\"", value);
976 Perl_load_module (perl, PERL_LOADMOD_NOIMPORT,
977 Perl_newSVpv (perl, module_name, strlen (module_name)),
980 else if (0 == strcasecmp (key, "BaseName")) {
981 log_debug ("perl_config: Setting plugin basename to \"%s\"", value);
982 strncpy (base_name, value, sizeof (base_name));
983 base_name[sizeof (base_name) - 1] = '\0';
985 else if (0 == strcasecmp (key, "IncludeDir")) {
986 Perl_av_unshift (perl, GvAVn (PL_incgv), 1);
987 Perl_av_store (perl, GvAVn (PL_incgv),
988 0, Perl_newSVpv (perl, value, strlen (value)));
994 } /* static int perl_config (char *, char *) */
996 static int perl_init (void)
998 assert (NULL != perl);
1000 PERL_SET_CONTEXT (perl);
1001 return pplugin_call_all (PLUGIN_INIT);
1002 } /* static int perl_init (void) */
1004 static int perl_read (void)
1006 assert (NULL != perl);
1008 PERL_SET_CONTEXT (perl);
1009 return pplugin_call_all (PLUGIN_READ);
1010 } /* static int perl_read (void) */
1012 static int perl_write (const data_set_t *ds, const value_list_t *vl)
1014 assert (NULL != perl);
1016 PERL_SET_CONTEXT (perl);
1017 return pplugin_call_all (PLUGIN_WRITE, ds, vl);
1018 } /* static int perl_write (const data_set_t *, const value_list_t *) */
1020 static void perl_log (int level, const char *msg)
1022 assert (NULL != perl);
1024 PERL_SET_CONTEXT (perl);
1025 pplugin_call_all (PLUGIN_LOG, level, msg);
1027 } /* static void perl_log (int, const char *) */
1029 static int perl_shutdown (void)
1034 plugin_unregister_log ("perl");
1035 plugin_unregister_config ("perl");
1036 plugin_unregister_init ("perl");
1037 plugin_unregister_read ("perl");
1038 plugin_unregister_write ("perl");
1040 assert (NULL != perl);
1042 PERL_SET_CONTEXT (perl);
1043 ret = pplugin_call_all (PLUGIN_SHUTDOWN);
1045 for (i = 0; i < PLUGIN_TYPES; ++i) {
1046 if (0 < Perl_hv_iterinit (perl, plugins[i])) {
1050 while (NULL != Perl_hv_iternextsv (perl, plugins[i], &k, &l)) {
1051 pplugin_unregister (i, k);
1055 Perl_hv_undef (perl, plugins[i]);
1058 if (0 < Perl_hv_iterinit (perl, data_sets)) {
1062 while (NULL != Perl_hv_iternextsv (perl, data_sets, &k, &l)) {
1063 pplugin_unregister_data_set (k);
1067 Perl_hv_undef (perl, data_sets);
1070 Perl_sv_report_used (perl);
1071 #endif /* COLLECT_DEBUG */
1073 perl_destruct (perl);
1079 plugin_unregister_shutdown ("perl");
1081 } /* static void perl_shutdown (void) */
1083 static void xs_init (pTHX)
1085 char *file = __FILE__;
1089 /* build the Collectd module into the perl interpreter */
1090 Perl_newXS (perl, "Collectd::bootstrap", boot_Collectd, file);
1092 /* enable usage of Perl modules using shared libraries */
1093 Perl_newXS (perl, "DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
1095 } /* static void xs_init (pTHX) */
1098 * Create the perl interpreter and register it with collectd.
1100 void module_register (void)
1102 char *embed_argv[] = { "", "-e", "bootstrap Collectd \""VERSION"\"", NULL };
1107 log_debug ("module_register: Registering perl plugin...");
1109 PERL_SYS_INIT3 (&argc, &argv, &environ);
1111 if (NULL == (perl = perl_alloc ())) {
1112 log_err ("module_register: Not enough memory.");
1115 perl_construct (perl);
1117 PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
1119 if (0 != perl_parse (perl, xs_init, embed_argc, embed_argv, NULL)) {
1120 log_err ("module_register: Unable to bootstrap Collectd.");
1125 for (i = 0; i < PLUGIN_TYPES; ++i)
1126 plugins[i] = Perl_newHV (perl);
1128 data_sets = Perl_newHV (perl);
1130 plugin_register_log ("perl", perl_log);
1131 plugin_register_config ("perl", perl_config, config_keys, config_keys_num);
1132 plugin_register_init ("perl", perl_init);
1134 plugin_register_read ("perl", perl_read);
1136 plugin_register_write ("perl", perl_write);
1137 plugin_register_shutdown ("perl", perl_shutdown);
1139 } /* void module_register (void) */
1141 /* vim: set sw=4 ts=4 tw=78 noexpandtab : */