1 /**
2 * collectd - src/perl.c
3 * Copyright (C) 2007 Sebastian Harl
4 *
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.
8 *
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.
13 *
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
17 *
18 * Author:
19 * Sebastian Harl <sh at tokkee.org>
20 **/
22 /*
23 * This plugin embeds a Perl interpreter into collectd and provides an
24 * interface for collectd plugins written in perl.
25 */
27 /* do not automatically get the thread specific perl interpreter */
28 #define PERL_NO_GET_CONTEXT
30 #include "collectd.h"
32 #include "configfile.h"
34 #include <EXTERN.h>
35 #include <perl.h>
37 #include <XSUB.h>
39 /* Some versions of Perl define their own version of DEBUG... :-/ */
40 #ifdef DEBUG
41 # undef DEBUG
42 #endif /* DEBUG */
44 /* ... while we want the definition found in plugin.h. */
45 #include "plugin.h"
46 #include "common.h"
48 #include <pthread.h>
50 #if !defined(USE_ITHREADS)
51 # error "Perl does not support ithreads!"
52 #endif /* !defined(USE_ITHREADS) */
54 /* clear the Perl sub's stack frame
55 * (this should only be used inside an XSUB) */
56 #define CLEAR_STACK_FRAME PL_stack_sp = PL_stack_base + *PL_markstack_ptr
58 #define PLUGIN_INIT 0
59 #define PLUGIN_READ 1
60 #define PLUGIN_WRITE 2
61 #define PLUGIN_SHUTDOWN 3
62 #define PLUGIN_LOG 4
63 #define PLUGIN_NOTIF 5
65 #define PLUGIN_TYPES 6
67 #define PLUGIN_DATASET 255
69 #define log_debug(...) DEBUG ("perl: " __VA_ARGS__)
70 #define log_info(...) INFO ("perl: " __VA_ARGS__)
71 #define log_warn(...) WARNING ("perl: " __VA_ARGS__)
72 #define log_err(...) ERROR ("perl: " __VA_ARGS__)
74 /* this is defined in DynaLoader.a */
75 void boot_DynaLoader (PerlInterpreter *, CV *);
77 static XS (Collectd_plugin_register_ds);
78 static XS (Collectd_plugin_unregister_ds);
79 static XS (Collectd_plugin_dispatch_values);
80 static XS (Collectd_plugin_dispatch_notification);
81 static XS (Collectd_plugin_log);
82 static XS (Collectd_call_by_name);
84 /*
85 * private data types
86 */
88 typedef struct c_ithread_s {
89 /* the thread's Perl interpreter */
90 PerlInterpreter *interp;
92 /* double linked list of threads */
93 struct c_ithread_s *prev;
94 struct c_ithread_s *next;
95 } c_ithread_t;
97 typedef struct {
98 c_ithread_t *head;
99 c_ithread_t *tail;
101 #if COLLECT_DEBUG
102 /* some usage stats */
103 int number_of_threads;
104 #endif /* COLLECT_DEBUG */
106 pthread_mutex_t mutex;
107 } c_ithread_list_t;
109 /*
110 * private variables
111 */
113 /* if perl_threads != NULL perl_threads->head must
114 * point to the "base" thread */
115 static c_ithread_list_t *perl_threads = NULL;
117 /* the key used to store each pthread's ithread */
118 static pthread_key_t perl_thr_key;
120 static int perl_argc = 0;
121 static char **perl_argv = NULL;
123 static char base_name[DATA_MAX_NAME_LEN] = "";
125 static struct {
126 char name[64];
127 XS ((*f));
128 } api[] =
129 {
130 { "Collectd::plugin_register_data_set", Collectd_plugin_register_ds },
131 { "Collectd::plugin_unregister_data_set", Collectd_plugin_unregister_ds },
132 { "Collectd::plugin_dispatch_values", Collectd_plugin_dispatch_values },
133 { "Collectd::plugin_dispatch_notification",
134 Collectd_plugin_dispatch_notification },
135 { "Collectd::plugin_log", Collectd_plugin_log },
136 { "Collectd::call_by_name", Collectd_call_by_name },
137 { "", NULL }
138 };
140 struct {
141 char name[64];
142 int value;
143 } constants[] =
144 {
145 { "Collectd::TYPE_INIT", PLUGIN_INIT },
146 { "Collectd::TYPE_READ", PLUGIN_READ },
147 { "Collectd::TYPE_WRITE", PLUGIN_WRITE },
148 { "Collectd::TYPE_SHUTDOWN", PLUGIN_SHUTDOWN },
149 { "Collectd::TYPE_LOG", PLUGIN_LOG },
150 { "Collectd::TYPE_NOTIF", PLUGIN_NOTIF },
151 { "Collectd::TYPE_DATASET", PLUGIN_DATASET },
152 { "Collectd::DS_TYPE_COUNTER", DS_TYPE_COUNTER },
153 { "Collectd::DS_TYPE_GAUGE", DS_TYPE_GAUGE },
154 { "Collectd::LOG_ERR", LOG_ERR },
155 { "Collectd::LOG_WARNING", LOG_WARNING },
156 { "Collectd::LOG_NOTICE", LOG_NOTICE },
157 { "Collectd::LOG_INFO", LOG_INFO },
158 { "Collectd::LOG_DEBUG", LOG_DEBUG },
159 { "Collectd::NOTIF_FAILURE", NOTIF_FAILURE },
160 { "Collectd::NOTIF_WARNING", NOTIF_WARNING },
161 { "Collectd::NOTIF_OKAY", NOTIF_OKAY },
162 { "", 0 }
163 };
165 struct {
166 char name[64];
167 char *var;
168 } g_strings[] =
169 {
170 { "Collectd::hostname_g", hostname_g },
171 { "", NULL }
172 };
174 struct {
175 char name[64];
176 int *var;
177 } g_integers[] =
178 {
179 { "Collectd::interval_g", &interval_g },
180 { "", NULL }
181 };
183 /*
184 * Helper functions for data type conversion.
185 */
187 /*
188 * data source:
189 * [
190 * {
191 * name => $ds_name,
192 * type => $ds_type,
193 * min => $ds_min,
194 * max => $ds_max
195 * },
196 * ...
197 * ]
198 */
199 static int hv2data_source (pTHX_ HV *hash, data_source_t *ds)
200 {
201 SV **tmp = NULL;
203 if ((NULL == hash) || (NULL == ds))
204 return -1;
206 if (NULL != (tmp = hv_fetch (hash, "name", 4, 0))) {
207 strncpy (ds->name, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
208 ds->name[DATA_MAX_NAME_LEN - 1] = '\0';
209 }
210 else {
211 log_err ("hv2data_source: No DS name given.");
212 return -1;
213 }
215 if (NULL != (tmp = hv_fetch (hash, "type", 4, 0))) {
216 ds->type = SvIV (*tmp);
218 if ((DS_TYPE_COUNTER != ds->type) && (DS_TYPE_GAUGE != ds->type)) {
219 log_err ("hv2data_source: Invalid DS type.");
220 return -1;
221 }
222 }
223 else {
224 ds->type = DS_TYPE_COUNTER;
225 }
227 if (NULL != (tmp = hv_fetch (hash, "min", 3, 0)))
228 ds->min = SvNV (*tmp);
229 else
230 ds->min = NAN;
232 if (NULL != (tmp = hv_fetch (hash, "max", 3, 0)))
233 ds->max = SvNV (*tmp);
234 else
235 ds->max = NAN;
236 return 0;
237 } /* static data_source_t *hv2data_source (HV *) */
239 static int av2value (pTHX_ char *name, AV *array, value_t *value, int len)
240 {
241 const data_set_t *ds;
243 int i = 0;
245 if ((NULL == name) || (NULL == array) || (NULL == value))
246 return -1;
248 if (av_len (array) < len - 1)
249 len = av_len (array) + 1;
251 if (0 >= len)
252 return -1;
254 ds = plugin_get_ds (name);
255 if (NULL == ds) {
256 log_err ("av2value: Unknown dataset \"%s\"", name);
257 return -1;
258 }
260 if (ds->ds_num < len) {
261 log_warn ("av2value: Value length exceeds data set length.");
262 len = ds->ds_num;
263 }
265 for (i = 0; i < len; ++i) {
266 SV **tmp = av_fetch (array, i, 0);
268 if (NULL != tmp) {
269 if (DS_TYPE_COUNTER == ds->ds[i].type)
270 value[i].counter = SvIV (*tmp);
271 else
272 value[i].gauge = SvNV (*tmp);
273 }
274 else {
275 return -1;
276 }
277 }
278 return len;
279 } /* static int av2value (char *, AV *, value_t *, int) */
281 static int data_set2av (pTHX_ data_set_t *ds, AV *array)
282 {
283 int i = 0;
285 if ((NULL == ds) || (NULL == array))
286 return -1;
288 av_extend (array, ds->ds_num);
290 for (i = 0; i < ds->ds_num; ++i) {
291 HV *source = newHV ();
293 if (NULL == hv_store (source, "name", 4,
294 newSVpv (ds->ds[i].name, 0), 0))
295 return -1;
297 if (NULL == hv_store (source, "type", 4, newSViv (ds->ds[i].type), 0))
298 return -1;
300 if (! isnan (ds->ds[i].min))
301 if (NULL == hv_store (source, "min", 3,
302 newSVnv (ds->ds[i].min), 0))
303 return -1;
305 if (! isnan (ds->ds[i].max))
306 if (NULL == hv_store (source, "max", 3,
307 newSVnv (ds->ds[i].max), 0))
308 return -1;
310 if (NULL == av_store (array, i, newRV_noinc ((SV *)source)))
311 return -1;
312 }
313 return 0;
314 } /* static int data_set2av (data_set_t *, AV *) */
316 static int value_list2hv (pTHX_ value_list_t *vl, data_set_t *ds, HV *hash)
317 {
318 AV *values = NULL;
320 int i = 0;
321 int len = 0;
323 if ((NULL == vl) || (NULL == ds) || (NULL == hash))
324 return -1;
326 len = vl->values_len;
328 if (ds->ds_num < len) {
329 log_warn ("value2av: Value length exceeds data set length.");
330 len = ds->ds_num;
331 }
333 values = newAV ();
334 av_extend (values, len - 1);
336 for (i = 0; i < len; ++i) {
337 SV *val = NULL;
339 if (DS_TYPE_COUNTER == ds->ds[i].type)
340 val = newSViv (vl->values[i].counter);
341 else
342 val = newSVnv (vl->values[i].gauge);
344 if (NULL == av_store (values, i, val)) {
345 av_undef (values);
346 return -1;
347 }
348 }
350 if (NULL == hv_store (hash, "values", 6, newRV_noinc ((SV *)values), 0))
351 return -1;
353 if (0 != vl->time)
354 if (NULL == hv_store (hash, "time", 4, newSViv (vl->time), 0))
355 return -1;
357 if ('\0' != vl->host[0])
358 if (NULL == hv_store (hash, "host", 4, newSVpv (vl->host, 0), 0))
359 return -1;
361 if ('\0' != vl->plugin[0])
362 if (NULL == hv_store (hash, "plugin", 6, newSVpv (vl->plugin, 0), 0))
363 return -1;
365 if ('\0' != vl->plugin_instance[0])
366 if (NULL == hv_store (hash, "plugin_instance", 15,
367 newSVpv (vl->plugin_instance, 0), 0))
368 return -1;
370 if ('\0' != vl->type_instance[0])
371 if (NULL == hv_store (hash, "type_instance", 13,
372 newSVpv (vl->type_instance, 0), 0))
373 return -1;
374 return 0;
375 } /* static int value2av (value_list_t *, data_set_t *, HV *) */
377 static int notification2hv (pTHX_ notification_t *n, HV *hash)
378 {
379 if (NULL == hv_store (hash, "severity", 8, newSViv (n->severity), 0))
380 return -1;
382 if (0 != n->time)
383 if (NULL == hv_store (hash, "time", 4, newSViv (n->time), 0))
384 return -1;
386 if ('\0' != *n->message)
387 if (NULL == hv_store (hash, "message", 7, newSVpv (n->message, 0), 0))
388 return -1;
390 if ('\0' != *n->host)
391 if (NULL == hv_store (hash, "host", 4, newSVpv (n->host, 0), 0))
392 return -1;
394 if ('\0' != *n->plugin)
395 if (NULL == hv_store (hash, "plugin", 6, newSVpv (n->plugin, 0), 0))
396 return -1;
398 if ('\0' != *n->plugin_instance)
399 if (NULL == hv_store (hash, "plugin_instance", 15,
400 newSVpv (n->plugin_instance, 0), 0))
401 return -1;
403 if ('\0' != *n->type)
404 if (NULL == hv_store (hash, "type", 4, newSVpv (n->type, 0), 0))
405 return -1;
407 if ('\0' != *n->type_instance)
408 if (NULL == hv_store (hash, "type_instance", 13,
409 newSVpv (n->type_instance, 0), 0))
410 return -1;
411 return 0;
412 } /* static int notification2hv (notification_t *, HV *) */
414 /*
415 * Internal functions.
416 */
418 static char *get_module_name (char *buf, size_t buf_len, const char *module) {
419 int status = 0;
420 if (base_name[0] == '\0')
421 status = snprintf (buf, buf_len, "%s", module);
422 else
423 status = snprintf (buf, buf_len, "%s::%s", base_name, module);
424 if ((status < 0) || ((unsigned int)status >= buf_len))
425 return (NULL);
426 buf[buf_len - 1] = '\0';
427 return (buf);
428 } /* char *get_module_name */
430 /*
431 * Add a plugin's data set definition.
432 */
433 static int pplugin_register_data_set (pTHX_ char *name, AV *dataset)
434 {
435 int len = -1;
436 int ret = 0;
437 int i = 0;
439 data_source_t *ds = NULL;
440 data_set_t *set = NULL;
442 if ((NULL == name) || (NULL == dataset))
443 return -1;
445 len = av_len (dataset);
447 if (-1 == len)
448 return -1;
450 ds = (data_source_t *)smalloc ((len + 1) * sizeof (data_source_t));
451 set = (data_set_t *)smalloc (sizeof (data_set_t));
453 for (i = 0; i <= len; ++i) {
454 SV **elem = av_fetch (dataset, i, 0);
456 if (NULL == elem)
457 return -1;
459 if (! (SvROK (*elem) && (SVt_PVHV == SvTYPE (SvRV (*elem))))) {
460 log_err ("pplugin_register_data_set: Invalid data source.");
461 return -1;
462 }
464 if (-1 == hv2data_source (aTHX_ (HV *)SvRV (*elem), &ds[i]))
465 return -1;
467 log_debug ("pplugin_register_data_set: "
468 "DS.name = \"%s\", DS.type = %i, DS.min = %f, DS.max = %f",
469 ds[i].name, ds[i].type, ds[i].min, ds[i].max);
470 }
472 strncpy (set->type, name, DATA_MAX_NAME_LEN);
473 set->type[DATA_MAX_NAME_LEN - 1] = '\0';
475 set->ds_num = len + 1;
476 set->ds = ds;
478 ret = plugin_register_data_set (set);
480 free (ds);
481 free (set);
482 return ret;
483 } /* static int pplugin_register_data_set (char *, SV *) */
485 /*
486 * Remove a plugin's data set definition.
487 */
488 static int pplugin_unregister_data_set (char *name)
489 {
490 if (NULL == name)
491 return 0;
492 return plugin_unregister_data_set (name);
493 } /* static int pplugin_unregister_data_set (char *) */
495 /*
496 * Submit the values to the write functions.
497 *
498 * value list:
499 * {
500 * values => [ @values ],
501 * time => $time,
502 * host => $host,
503 * plugin => $plugin,
504 * plugin_instance => $pinstance,
505 * type_instance => $tinstance,
506 * }
507 */
508 static int pplugin_dispatch_values (pTHX_ char *name, HV *values)
509 {
510 value_list_t list = VALUE_LIST_INIT;
511 value_t *val = NULL;
513 SV **tmp = NULL;
515 int ret = 0;
517 if ((NULL == name) || (NULL == values))
518 return -1;
520 if ((NULL == (tmp = hv_fetch (values, "values", 6, 0)))
521 || (! (SvROK (*tmp) && (SVt_PVAV == SvTYPE (SvRV (*tmp)))))) {
522 log_err ("pplugin_dispatch_values: No valid values given.");
523 return -1;
524 }
526 {
527 AV *array = (AV *)SvRV (*tmp);
528 int len = av_len (array) + 1;
530 if (len <= 0)
531 return -1;
533 val = (value_t *)smalloc (len * sizeof (value_t));
535 list.values_len = av2value (aTHX_ name, (AV *)SvRV (*tmp), val, len);
536 list.values = val;
538 if (-1 == list.values_len) {
539 sfree (val);
540 return -1;
541 }
542 }
544 if (NULL != (tmp = hv_fetch (values, "time", 4, 0))) {
545 list.time = (time_t)SvIV (*tmp);
546 }
547 else {
548 list.time = time (NULL);
549 }
551 if (NULL != (tmp = hv_fetch (values, "host", 4, 0))) {
552 strncpy (list.host, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
553 list.host[DATA_MAX_NAME_LEN - 1] = '\0';
554 }
555 else {
556 strcpy (list.host, hostname_g);
557 }
559 if (NULL != (tmp = hv_fetch (values, "plugin", 6, 0))) {
560 strncpy (list.plugin, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
561 list.plugin[DATA_MAX_NAME_LEN - 1] = '\0';
562 }
564 if (NULL != (tmp = hv_fetch (values, "plugin_instance", 15, 0))) {
565 strncpy (list.plugin_instance, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
566 list.plugin_instance[DATA_MAX_NAME_LEN - 1] = '\0';
567 }
569 if (NULL != (tmp = hv_fetch (values, "type_instance", 13, 0))) {
570 strncpy (list.type_instance, SvPV_nolen (*tmp), DATA_MAX_NAME_LEN);
571 list.type_instance[DATA_MAX_NAME_LEN - 1] = '\0';
572 }
574 ret = plugin_dispatch_values (name, &list);
576 sfree (val);
577 return ret;
578 } /* static int pplugin_dispatch_values (char *, HV *) */
580 /*
581 * Dispatch a notification.
582 *
583 * notification:
584 * {
585 * severity => $severity,
586 * time => $time,
587 * message => $msg,
588 * host => $host,
589 * plugin => $plugin,
590 * type => $type,
591 * plugin_instance => $instance,
592 * type_instance => $type_instance
593 * }
594 */
595 static int pplugin_dispatch_notification (pTHX_ HV *notif)
596 {
597 notification_t n;
599 SV **tmp = NULL;
601 if (NULL == notif)
602 return -1;
604 memset (&n, 0, sizeof (n));
606 if (NULL != (tmp = hv_fetch (notif, "severity", 8, 0)))
607 n.severity = SvIV (*tmp);
608 else
609 n.severity = NOTIF_FAILURE;
611 if (NULL != (tmp = hv_fetch (notif, "time", 4, 0)))
612 n.time = (time_t)SvIV (*tmp);
613 else
614 n.time = time (NULL);
616 if (NULL != (tmp = hv_fetch (notif, "message", 7, 0)))
617 strncpy (n.message, SvPV_nolen (*tmp), sizeof (n.message));
618 n.message[sizeof (n.message) - 1] = '\0';
620 if (NULL != (tmp = hv_fetch (notif, "host", 4, 0)))
621 strncpy (n.host, SvPV_nolen (*tmp), sizeof (n.host));
622 else
623 strncpy (n.host, hostname_g, sizeof (n.host));
624 n.host[sizeof (n.host) - 1] = '\0';
626 if (NULL != (tmp = hv_fetch (notif, "plugin", 6, 0)))
627 strncpy (n.plugin, SvPV_nolen (*tmp), sizeof (n.plugin));
628 n.plugin[sizeof (n.plugin) - 1] = '\0';
630 if (NULL != (tmp = hv_fetch (notif, "plugin_instance", 15, 0)))
631 strncpy (n.plugin_instance, SvPV_nolen (*tmp),
632 sizeof (n.plugin_instance));
633 n.plugin_instance[sizeof (n.plugin_instance) - 1] = '\0';
635 if (NULL != (tmp = hv_fetch (notif, "type", 4, 0)))
636 strncpy (n.type, SvPV_nolen (*tmp), sizeof (n.type));
637 n.type[sizeof (n.type) - 1] = '\0';
639 if (NULL != (tmp = hv_fetch (notif, "type_instance", 13, 0)))
640 strncpy (n.type_instance, SvPV_nolen (*tmp), sizeof (n.type_instance));
641 n.type_instance[sizeof (n.type_instance) - 1] = '\0';
642 return plugin_dispatch_notification (&n);
643 } /* static int pplugin_dispatch_notification (HV *) */
645 /*
646 * Call all working functions of the given type.
647 */
648 static int pplugin_call_all (pTHX_ int type, ...)
649 {
650 int retvals = 0;
652 va_list ap;
653 int ret = 0;
655 dSP;
657 if ((type < 0) || (type >= PLUGIN_TYPES))
658 return -1;
660 va_start (ap, type);
662 ENTER;
663 SAVETMPS;
665 PUSHMARK (SP);
667 XPUSHs (sv_2mortal (newSViv ((IV)type)));
669 if (PLUGIN_WRITE == type) {
670 /*
671 * $_[0] = $plugin_type;
672 *
673 * $_[1] =
674 * [
675 * {
676 * name => $ds_name,
677 * type => $ds_type,
678 * min => $ds_min,
679 * max => $ds_max
680 * },
681 * ...
682 * ];
683 *
684 * $_[2] =
685 * {
686 * values => [ $v1, ... ],
687 * time => $time,
688 * host => $hostname,
689 * plugin => $plugin,
690 * plugin_instance => $instance,
691 * type_instance => $type_instance
692 * };
693 */
694 data_set_t *ds;
695 value_list_t *vl;
697 AV *pds = newAV ();
698 HV *pvl = newHV ();
700 ds = va_arg (ap, data_set_t *);
701 vl = va_arg (ap, value_list_t *);
703 if (-1 == data_set2av (aTHX_ ds, pds))
704 return -1;
706 if (-1 == value_list2hv (aTHX_ vl, ds, pvl))
707 return -1;
709 XPUSHs (sv_2mortal (newSVpv (ds->type, 0)));
710 XPUSHs (sv_2mortal (newRV_noinc ((SV *)pds)));
711 XPUSHs (sv_2mortal (newRV_noinc ((SV *)pvl)));
712 }
713 else if (PLUGIN_LOG == type) {
714 /*
715 * $_[0] = $level;
716 *
717 * $_[1] = $message;
718 */
719 XPUSHs (sv_2mortal (newSViv (va_arg (ap, int))));
720 XPUSHs (sv_2mortal (newSVpv (va_arg (ap, char *), 0)));
721 }
722 else if (PLUGIN_NOTIF == type) {
723 /*
724 * $_[0] =
725 * {
726 * severity => $severity,
727 * time => $time,
728 * message => $msg,
729 * host => $host,
730 * plugin => $plugin,
731 * type => $type,
732 * plugin_instance => $instance,
733 * type_instance => $type_instance
734 * };
735 */
736 notification_t *n;
737 HV *notif = newHV ();
739 n = va_arg (ap, notification_t *);
741 if (-1 == notification2hv (aTHX_ n, notif))
742 return -1;
744 XPUSHs (sv_2mortal (newRV_noinc ((SV *)notif)));
745 }
747 PUTBACK;
749 retvals = call_pv ("Collectd::plugin_call_all", G_SCALAR);
751 SPAGAIN;
752 if (0 < retvals) {
753 SV *tmp = POPs;
754 if (! SvTRUE (tmp))
755 ret = -1;
756 }
758 PUTBACK;
759 FREETMPS;
760 LEAVE;
762 va_end (ap);
763 return ret;
764 } /* static int pplugin_call_all (int, ...) */
766 /*
767 * Exported Perl API.
768 */
770 /*
771 * Collectd::plugin_register_data_set (type, dataset).
772 *
773 * type:
774 * type of the dataset
775 *
776 * dataset:
777 * dataset to be registered
778 */
779 static XS (Collectd_plugin_register_ds)
780 {
781 SV *data = NULL;
782 int ret = 0;
784 dXSARGS;
786 if (2 != items) {
787 log_err ("Usage: Collectd::plugin_register_data_set(type, dataset)");
788 XSRETURN_EMPTY;
789 }
791 log_debug ("Collectd::plugin_register_data_set: "
792 "type = \"%s\", dataset = \"%s\"",
793 SvPV_nolen (ST (0)), SvPV_nolen (ST (1)));
795 data = ST (1);
797 if (SvROK (data) && (SVt_PVAV == SvTYPE (SvRV (data)))) {
798 ret = pplugin_register_data_set (aTHX_ SvPV_nolen (ST (0)),
799 (AV *)SvRV (data));
800 }
801 else {
802 log_err ("Collectd::plugin_register_data_set: Invalid data.");
803 XSRETURN_EMPTY;
804 }
806 if (0 == ret)
807 XSRETURN_YES;
808 else
809 XSRETURN_EMPTY;
810 } /* static XS (Collectd_plugin_register_ds) */
812 /*
813 * Collectd::plugin_unregister_data_set (type).
814 *
815 * type:
816 * type of the dataset
817 */
818 static XS (Collectd_plugin_unregister_ds)
819 {
820 dXSARGS;
822 if (1 != items) {
823 log_err ("Usage: Collectd::plugin_unregister_data_set(type)");
824 XSRETURN_EMPTY;
825 }
827 log_debug ("Collectd::plugin_unregister_data_set: type = \"%s\"",
828 SvPV_nolen (ST (0)));
830 if (0 == pplugin_unregister_data_set (SvPV_nolen (ST (0))))
831 XSRETURN_YES;
832 else
833 XSRETURN_EMPTY;
834 } /* static XS (Collectd_plugin_register_ds) */
836 /*
837 * Collectd::plugin_dispatch_values (name, values).
838 *
839 * name:
840 * name of the plugin
841 *
842 * values:
843 * value list to submit
844 */
845 static XS (Collectd_plugin_dispatch_values)
846 {
847 SV *values = NULL;
849 int ret = 0;
851 dXSARGS;
853 if (2 != items) {
854 log_err ("Usage: Collectd::plugin_dispatch_values(name, values)");
855 XSRETURN_EMPTY;
856 }
858 log_debug ("Collectd::plugin_dispatch_values: "
859 "name = \"%s\", values=\"%s\"",
860 SvPV_nolen (ST (0)), SvPV_nolen (ST (1)));
862 values = ST (1);
864 if (! (SvROK (values) && (SVt_PVHV == SvTYPE (SvRV (values))))) {
865 log_err ("Collectd::plugin_dispatch_values: Invalid values.");
866 XSRETURN_EMPTY;
867 }
869 if ((NULL == ST (0)) || (NULL == values))
870 XSRETURN_EMPTY;
872 ret = pplugin_dispatch_values (aTHX_ SvPV_nolen (ST (0)),
873 (HV *)SvRV (values));
875 if (0 == ret)
876 XSRETURN_YES;
877 else
878 XSRETURN_EMPTY;
879 } /* static XS (Collectd_plugin_dispatch_values) */
881 /*
882 * Collectd::plugin_dispatch_notification (notif).
883 *
884 * notif:
885 * notification to dispatch
886 */
887 static XS (Collectd_plugin_dispatch_notification)
888 {
889 SV *notif = NULL;
891 int ret = 0;
893 dXSARGS;
895 if (1 != items) {
896 log_err ("Usage: Collectd::plugin_dispatch_notification(notif)");
897 XSRETURN_EMPTY;
898 }
900 log_debug ("Collectd::plugin_dispatch_notification: notif = \"%s\"",
901 SvPV_nolen (ST (0)));
903 notif = ST (0);
905 if (! (SvROK (notif) && (SVt_PVHV == SvTYPE (SvRV (notif))))) {
906 log_err ("Collectd::plugin_dispatch_notification: Invalid notif.");
907 XSRETURN_EMPTY;
908 }
910 ret = pplugin_dispatch_notification (aTHX_ (HV *)SvRV (notif));
912 if (0 == ret)
913 XSRETURN_YES;
914 else
915 XSRETURN_EMPTY;
916 } /* static XS (Collectd_plugin_dispatch_notification) */
918 /*
919 * Collectd::plugin_log (level, message).
920 *
921 * level:
922 * log level (LOG_DEBUG, ... LOG_ERR)
923 *
924 * message:
925 * log message
926 */
927 static XS (Collectd_plugin_log)
928 {
929 dXSARGS;
931 if (2 != items) {
932 log_err ("Usage: Collectd::plugin_log(level, message)");
933 XSRETURN_EMPTY;
934 }
936 plugin_log (SvIV (ST (0)), SvPV_nolen (ST (1)));
937 XSRETURN_YES;
938 } /* static XS (Collectd_plugin_log) */
940 /*
941 * Collectd::call_by_name (...).
942 *
943 * Call a Perl sub identified by its name passed through $Collectd::cb_name.
944 */
945 static XS (Collectd_call_by_name)
946 {
947 SV *tmp = NULL;
948 char *name = NULL;
950 if (NULL == (tmp = get_sv ("Collectd::cb_name", 0))) {
951 sv_setpv (get_sv ("@", 1), "cb_name has not been set");
952 CLEAR_STACK_FRAME;
953 return;
954 }
956 name = SvPV_nolen (tmp);
958 if (NULL == get_cv (name, 0)) {
959 sv_setpvf (get_sv ("@", 1), "unknown callback \"%s\"", name);
960 CLEAR_STACK_FRAME;
961 return;
962 }
964 /* simply pass on the subroutine call without touching the stack,
965 * thus leaving any arguments and return values in place */
966 call_pv (name, 0);
967 } /* static XS (Collectd_call_by_name) */
969 /*
970 * collectd's perl interpreter based thread implementation.
971 *
972 * This has been inspired by Perl's ithreads introduced in version 5.6.0.
973 */
975 /* must be called with perl_threads->mutex locked */
976 static void c_ithread_destroy (c_ithread_t *ithread)
977 {
978 dTHXa (ithread->interp);
980 assert (NULL != perl_threads);
982 PERL_SET_CONTEXT (aTHX);
983 log_debug ("Shutting down Perl interpreter %p...", aTHX);
985 #if COLLECT_DEBUG
986 sv_report_used ();
988 --perl_threads->number_of_threads;
989 #endif /* COLLECT_DEBUG */
991 perl_destruct (aTHX);
992 perl_free (aTHX);
994 if (NULL == ithread->prev)
995 perl_threads->head = ithread->next;
996 else
997 ithread->prev->next = ithread->next;
999 if (NULL == ithread->next)
1000 perl_threads->tail = ithread->prev;
1001 else
1002 ithread->next->prev = ithread->prev;
1004 sfree (ithread);
1005 return;
1006 } /* static void c_ithread_destroy (c_ithread_t *) */
1008 static void c_ithread_destructor (void *arg)
1009 {
1010 c_ithread_t *ithread = (c_ithread_t *)arg;
1011 c_ithread_t *t = NULL;
1013 if (NULL == perl_threads)
1014 return;
1016 pthread_mutex_lock (&perl_threads->mutex);
1018 for (t = perl_threads->head; NULL != t; t = t->next)
1019 if (t == ithread)
1020 break;
1022 /* the ithread no longer exists */
1023 if (NULL == t)
1024 return;
1026 c_ithread_destroy (ithread);
1028 pthread_mutex_unlock (&perl_threads->mutex);
1029 return;
1030 } /* static void c_ithread_destructor (void *) */
1032 /* must be called with perl_threads->mutex locked */
1033 static c_ithread_t *c_ithread_create (PerlInterpreter *base)
1034 {
1035 c_ithread_t *t = NULL;
1036 dTHXa (NULL);
1038 assert (NULL != perl_threads);
1040 t = (c_ithread_t *)smalloc (sizeof (c_ithread_t));
1041 memset (t, 0, sizeof (c_ithread_t));
1043 t->interp = (NULL == base)
1044 ? NULL
1045 : perl_clone (base, CLONEf_KEEP_PTR_TABLE);
1047 aTHX = t->interp;
1049 if (NULL != base) {
1050 av_clear (PL_endav);
1051 av_undef (PL_endav);
1052 PL_endav = Nullav;
1053 }
1055 #if COLLECT_DEBUG
1056 ++perl_threads->number_of_threads;
1057 #endif /* COLLECT_DEBUG */
1059 t->next = NULL;
1061 if (NULL == perl_threads->tail) {
1062 perl_threads->head = t;
1063 t->prev = NULL;
1064 }
1065 else {
1066 perl_threads->tail->next = t;
1067 t->prev = perl_threads->tail;
1068 }
1070 perl_threads->tail = t;
1072 pthread_setspecific (perl_thr_key, (const void *)t);
1073 return t;
1074 } /* static c_ithread_t *c_ithread_create (PerlInterpreter *) */
1076 /*
1077 * Interface to collectd.
1078 */
1080 static int perl_init (void)
1081 {
1082 dTHX;
1084 if (NULL == perl_threads)
1085 return 0;
1087 if (NULL == aTHX) {
1088 c_ithread_t *t = NULL;
1090 pthread_mutex_lock (&perl_threads->mutex);
1091 t = c_ithread_create (perl_threads->head->interp);
1092 pthread_mutex_unlock (&perl_threads->mutex);
1094 aTHX = t->interp;
1095 }
1097 log_debug ("perl_init: c_ithread: interp = %p (active threads: %i)",
1098 aTHX, perl_threads->number_of_threads);
1099 return pplugin_call_all (aTHX_ PLUGIN_INIT);
1100 } /* static int perl_init (void) */
1102 static int perl_read (void)
1103 {
1104 dTHX;
1106 if (NULL == perl_threads)
1107 return 0;
1109 if (NULL == aTHX) {
1110 c_ithread_t *t = NULL;
1112 pthread_mutex_lock (&perl_threads->mutex);
1113 t = c_ithread_create (perl_threads->head->interp);
1114 pthread_mutex_unlock (&perl_threads->mutex);
1116 aTHX = t->interp;
1117 }
1119 log_debug ("perl_read: c_ithread: interp = %p (active threads: %i)",
1120 aTHX, perl_threads->number_of_threads);
1121 return pplugin_call_all (aTHX_ PLUGIN_READ);
1122 } /* static int perl_read (void) */
1124 static int perl_write (const data_set_t *ds, const value_list_t *vl)
1125 {
1126 dTHX;
1128 if (NULL == perl_threads)
1129 return 0;
1131 if (NULL == aTHX) {
1132 c_ithread_t *t = NULL;
1134 pthread_mutex_lock (&perl_threads->mutex);
1135 t = c_ithread_create (perl_threads->head->interp);
1136 pthread_mutex_unlock (&perl_threads->mutex);
1138 aTHX = t->interp;
1139 }
1141 log_debug ("perl_write: c_ithread: interp = %p (active threads: %i)",
1142 aTHX, perl_threads->number_of_threads);
1143 return pplugin_call_all (aTHX_ PLUGIN_WRITE, ds, vl);
1144 } /* static int perl_write (const data_set_t *, const value_list_t *) */
1146 static void perl_log (int level, const char *msg)
1147 {
1148 dTHX;
1150 if (NULL == perl_threads)
1151 return;
1153 if (NULL == aTHX) {
1154 c_ithread_t *t = NULL;
1156 pthread_mutex_lock (&perl_threads->mutex);
1157 t = c_ithread_create (perl_threads->head->interp);
1158 pthread_mutex_unlock (&perl_threads->mutex);
1160 aTHX = t->interp;
1161 }
1163 pplugin_call_all (aTHX_ PLUGIN_LOG, level, msg);
1164 return;
1165 } /* static void perl_log (int, const char *) */
1167 static int perl_notify (const notification_t *notif)
1168 {
1169 dTHX;
1171 if (NULL == perl_threads)
1172 return 0;
1174 if (NULL == aTHX) {
1175 c_ithread_t *t = NULL;
1177 pthread_mutex_lock (&perl_threads->mutex);
1178 t = c_ithread_create (perl_threads->head->interp);
1179 pthread_mutex_unlock (&perl_threads->mutex);
1181 aTHX = t->interp;
1182 }
1183 return pplugin_call_all (aTHX_ PLUGIN_NOTIF, notif);
1184 } /* static int perl_notify (const notification_t *) */
1186 static int perl_shutdown (void)
1187 {
1188 c_ithread_t *t = NULL;
1190 int ret = 0;
1192 dTHX;
1194 plugin_unregister_complex_config ("perl");
1196 if (NULL == perl_threads)
1197 return 0;
1199 if (NULL == aTHX) {
1200 c_ithread_t *t = NULL;
1202 pthread_mutex_lock (&perl_threads->mutex);
1203 t = c_ithread_create (perl_threads->head->interp);
1204 pthread_mutex_unlock (&perl_threads->mutex);
1206 aTHX = t->interp;
1207 }
1209 log_debug ("perl_shutdown: c_ithread: interp = %p (active threads: %i)",
1210 aTHX, perl_threads->number_of_threads);
1212 plugin_unregister_log ("perl");
1213 plugin_unregister_notification ("perl");
1214 plugin_unregister_init ("perl");
1215 plugin_unregister_read ("perl");
1216 plugin_unregister_write ("perl");
1218 ret = pplugin_call_all (aTHX_ PLUGIN_SHUTDOWN);
1220 pthread_mutex_lock (&perl_threads->mutex);
1221 t = perl_threads->tail;
1223 while (NULL != t) {
1224 c_ithread_t *thr = t;
1226 /* the pointer has to be advanced before destroying
1227 * the thread as this will free the memory */
1228 t = t->prev;
1230 c_ithread_destroy (thr);
1231 }
1233 pthread_mutex_unlock (&perl_threads->mutex);
1234 pthread_mutex_destroy (&perl_threads->mutex);
1236 sfree (perl_threads);
1238 pthread_key_delete (perl_thr_key);
1240 PERL_SYS_TERM ();
1242 plugin_unregister_shutdown ("perl");
1243 return ret;
1244 } /* static void perl_shutdown (void) */
1246 /*
1247 * Access functions for global variables.
1248 *
1249 * These functions implement the "magic" used to access
1250 * the global variables from Perl.
1251 */
1253 static int g_pv_get (pTHX_ SV *var, MAGIC *mg)
1254 {
1255 char *pv = mg->mg_ptr;
1256 sv_setpv (var, pv);
1257 return 0;
1258 } /* static int g_pv_get (pTHX_ SV *, MAGIC *) */
1260 static int g_pv_set (pTHX_ SV *var, MAGIC *mg)
1261 {
1262 char *pv = mg->mg_ptr;
1263 strncpy (pv, SvPV_nolen (var), DATA_MAX_NAME_LEN);
1264 pv[DATA_MAX_NAME_LEN - 1] = '\0';
1265 return 0;
1266 } /* static int g_pv_set (pTHX_ SV *, MAGIC *) */
1268 static int g_iv_get (pTHX_ SV *var, MAGIC *mg)
1269 {
1270 int *iv = (int *)mg->mg_ptr;
1271 sv_setiv (var, *iv);
1272 return 0;
1273 } /* static int g_iv_get (pTHX_ SV *, MAGIC *) */
1275 static int g_iv_set (pTHX_ SV *var, MAGIC *mg)
1276 {
1277 int *iv = (int *)mg->mg_ptr;
1278 *iv = (int)SvIV (var);
1279 return 0;
1280 } /* static int g_iv_set (pTHX_ SV *, MAGIC *) */
1282 static MGVTBL g_pv_vtbl = { g_pv_get, g_pv_set, NULL, NULL, NULL, NULL, NULL };
1283 static MGVTBL g_iv_vtbl = { g_iv_get, g_iv_set, NULL, NULL, NULL, NULL, NULL };
1285 /* bootstrap the Collectd module */
1286 static void xs_init (pTHX)
1287 {
1288 HV *stash = NULL;
1289 SV *tmp = NULL;
1290 char *file = __FILE__;
1292 int i = 0;
1294 dXSUB_SYS;
1296 /* enable usage of Perl modules using shared libraries */
1297 newXS ("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
1299 /* register API */
1300 for (i = 0; NULL != api[i].f; ++i)
1301 newXS (api[i].name, api[i].f, file);
1303 stash = gv_stashpv ("Collectd", 1);
1305 /* export "constants" */
1306 for (i = 0; '\0' != constants[i].name[0]; ++i)
1307 newCONSTSUB (stash, constants[i].name, newSViv (constants[i].value));
1309 /* export global variables
1310 * by adding "magic" to the SV's representing the globale variables
1311 * perl is able to automagically call the get/set function when
1312 * accessing any such variable (this is basically the same as using
1313 * tie() in Perl) */
1314 /* global strings */
1315 for (i = 0; '\0' != g_strings[i].name[0]; ++i) {
1316 tmp = get_sv (g_strings[i].name, 1);
1317 sv_magicext (tmp, NULL, PERL_MAGIC_ext, &g_pv_vtbl,
1318 g_strings[i].var, 0);
1319 }
1321 /* global integers */
1322 for (i = 0; '\0' != g_integers[i].name[0]; ++i) {
1323 tmp = get_sv (g_integers[i].name, 1);
1324 sv_magicext (tmp, NULL, PERL_MAGIC_ext, &g_iv_vtbl,
1325 (char *)g_integers[i].var, 0);
1326 }
1327 return;
1328 } /* static void xs_init (pTHX) */
1330 /* Initialize the global Perl interpreter. */
1331 static int init_pi (int argc, char **argv)
1332 {
1333 dTHXa (NULL);
1335 if (NULL != perl_threads)
1336 return 0;
1338 log_info ("Initializing Perl interpreter...");
1339 #if COLLECT_DEBUG
1340 {
1341 int i = 0;
1343 for (i = 0; i < argc; ++i)
1344 log_debug ("argv[%i] = \"%s\"", i, argv[i]);
1345 }
1346 #endif /* COLLECT_DEBUG */
1348 if (0 != pthread_key_create (&perl_thr_key, c_ithread_destructor)) {
1349 log_err ("init_pi: pthread_key_create failed");
1351 /* this must not happen - cowardly giving up if it does */
1352 exit (1);
1353 }
1355 PERL_SYS_INIT3 (&argc, &argv, &environ);
1357 perl_threads = (c_ithread_list_t *)smalloc (sizeof (c_ithread_list_t));
1358 memset (perl_threads, 0, sizeof (c_ithread_list_t));
1360 pthread_mutex_init (&perl_threads->mutex, NULL);
1361 /* locking the mutex should not be necessary at this point
1362 * but let's just do it for the sake of completeness */
1363 pthread_mutex_lock (&perl_threads->mutex);
1365 perl_threads->head = c_ithread_create (NULL);
1366 perl_threads->tail = perl_threads->head;
1368 if (NULL == (perl_threads->head->interp = perl_alloc ())) {
1369 log_err ("init_pi: Not enough memory.");
1370 exit (3);
1371 }
1373 aTHX = perl_threads->head->interp;
1374 pthread_mutex_unlock (&perl_threads->mutex);
1376 perl_construct (aTHX);
1378 PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
1380 if (0 != perl_parse (aTHX_ xs_init, argc, argv, NULL)) {
1381 log_err ("init_pi: Unable to bootstrap Collectd.");
1382 exit (1);
1383 }
1385 /* Set $0 to "collectd" because perl_parse() has to set it to "-e". */
1386 sv_setpv (get_sv ("0", 0), "collectd");
1388 perl_run (aTHX);
1390 plugin_register_log ("perl", perl_log);
1391 plugin_register_notification ("perl", perl_notify);
1392 plugin_register_init ("perl", perl_init);
1394 plugin_register_read ("perl", perl_read);
1396 plugin_register_write ("perl", perl_write);
1397 plugin_register_shutdown ("perl", perl_shutdown);
1398 return 0;
1399 } /* static int init_pi (const char **, const int) */
1401 /*
1402 * LoadPlugin "<Plugin>"
1403 */
1404 static int perl_config_loadplugin (pTHX_ oconfig_item_t *ci)
1405 {
1406 char module_name[DATA_MAX_NAME_LEN];
1408 char *value = NULL;
1410 if ((0 != ci->children_num) || (1 != ci->values_num)
1411 || (OCONFIG_TYPE_STRING != ci->values[0].type)) {
1412 log_err ("LoadPlugin expects a single string argument.");
1413 return 1;
1414 }
1416 value = ci->values[0].value.string;
1418 if (NULL == get_module_name (module_name, sizeof (module_name), value)) {
1419 log_err ("Invalid module name %s", value);
1420 return (1);
1421 }
1423 init_pi (perl_argc, perl_argv);
1424 assert (NULL != perl_threads);
1425 assert (NULL != perl_threads->head);
1427 aTHX = perl_threads->head->interp;
1429 log_debug ("perl_config: loading perl plugin \"%s\"", value);
1430 load_module (PERL_LOADMOD_NOIMPORT,
1431 newSVpv (module_name, strlen (module_name)), Nullsv);
1432 return 0;
1433 } /* static int perl_config_loadplugin (oconfig_item_it *) */
1435 /*
1436 * BaseName "<Name>"
1437 */
1438 static int perl_config_basename (pTHX_ oconfig_item_t *ci)
1439 {
1440 char *value = NULL;
1442 if ((0 != ci->children_num) || (1 != ci->values_num)
1443 || (OCONFIG_TYPE_STRING != ci->values[0].type)) {
1444 log_err ("BaseName expects a single string argument.");
1445 return 1;
1446 }
1448 value = ci->values[0].value.string;
1450 log_debug ("perl_config: Setting plugin basename to \"%s\"", value);
1451 strncpy (base_name, value, sizeof (base_name));
1452 base_name[sizeof (base_name) - 1] = '\0';
1453 return 0;
1454 } /* static int perl_config_basename (oconfig_item_it *) */
1456 /*
1457 * EnableDebugger "<Package>"|""
1458 */
1459 static int perl_config_enabledebugger (pTHX_ oconfig_item_t *ci)
1460 {
1461 char *value = NULL;
1463 if ((0 != ci->children_num) || (1 != ci->values_num)
1464 || (OCONFIG_TYPE_STRING != ci->values[0].type)) {
1465 log_err ("EnableDebugger expects a single string argument.");
1466 return 1;
1467 }
1469 value = ci->values[0].value.string;
1471 perl_argv = (char **)realloc (perl_argv,
1472 (++perl_argc + 1) * sizeof (char *));
1474 if (NULL == perl_argv) {
1475 log_err ("perl_config: Not enough memory.");
1476 exit (3);
1477 }
1479 if ('\0' == value[0]) {
1480 perl_argv[perl_argc - 1] = "-d";
1481 }
1482 else {
1483 perl_argv[perl_argc - 1] = (char *)smalloc (strlen (value) + 4);
1484 sstrncpy (perl_argv[perl_argc - 1], "-d:", 4);
1485 sstrncpy (perl_argv[perl_argc - 1] + 3, value, strlen (value) + 1);
1486 }
1488 perl_argv[perl_argc] = NULL;
1489 return 0;
1490 } /* static int perl_config_enabledebugger (oconfig_item_it *) */
1492 /*
1493 * IncludeDir "<Dir>"
1494 */
1495 static int perl_config_includedir (pTHX_ oconfig_item_t *ci)
1496 {
1497 char *value = NULL;
1499 if ((0 != ci->children_num) || (1 != ci->values_num)
1500 || (OCONFIG_TYPE_STRING != ci->values[0].type)) {
1501 log_err ("IncludeDir expects a single string argument.");
1502 return 1;
1503 }
1505 value = ci->values[0].value.string;
1507 if (NULL == aTHX) {
1508 perl_argv = (char **)realloc (perl_argv,
1509 (++perl_argc + 1) * sizeof (char *));
1511 if (NULL == perl_argv) {
1512 log_err ("perl_config: Not enough memory.");
1513 exit (3);
1514 }
1516 perl_argv[perl_argc - 1] = (char *)smalloc (strlen (value) + 3);
1517 sstrncpy(perl_argv[perl_argc - 1], "-I", 3);
1518 sstrncpy(perl_argv[perl_argc - 1] + 2, value, strlen (value) + 1);
1520 perl_argv[perl_argc] = NULL;
1521 }
1522 else {
1523 /* prepend the directory to @INC */
1524 av_unshift (GvAVn (PL_incgv), 1);
1525 av_store (GvAVn (PL_incgv), 0, newSVpv (value, strlen (value)));
1526 }
1527 return 0;
1528 } /* static int perl_config_includedir (oconfig_item_it *) */
1530 static int perl_config (oconfig_item_t *ci)
1531 {
1532 int i = 0;
1534 dTHX;
1536 /* dTHX does not get any valid values in case Perl
1537 * has not been initialized */
1538 if (NULL == perl_threads)
1539 aTHX = NULL;
1541 for (i = 0; i < ci->children_num; ++i) {
1542 oconfig_item_t *c = ci->children + i;
1544 if (0 == strcasecmp (c->key, "LoadPlugin"))
1545 perl_config_loadplugin (aTHX_ c);
1546 else if (0 == strcasecmp (c->key, "BaseName"))
1547 perl_config_basename (aTHX_ c);
1548 else if (0 == strcasecmp (c->key, "EnableDebugger"))
1549 perl_config_enabledebugger (aTHX_ c);
1550 else if (0 == strcasecmp (c->key, "IncludeDir"))
1551 perl_config_includedir (aTHX_ c);
1552 else
1553 log_warn ("Ignoring unknown config key \"%s\".", c->key);
1554 }
1555 return 0;
1556 } /* static int perl_config (oconfig_item_t *) */
1558 void module_register (void)
1559 {
1560 perl_argc = 4;
1561 perl_argv = (char **)smalloc ((perl_argc + 1) * sizeof (char *));
1563 /* default options for the Perl interpreter */
1564 perl_argv[0] = "";
1565 perl_argv[1] = "-MCollectd";
1566 perl_argv[2] = "-e";
1567 perl_argv[3] = "1";
1568 perl_argv[4] = NULL;
1570 plugin_register_complex_config ("perl", perl_config);
1571 return;
1572 } /* void module_register (void) */
1574 /* vim: set sw=4 ts=4 tw=78 noexpandtab : */