2 Bacula(R) - The Network Backup Solution
4 Copyright (C) 2002-2011 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version three of the GNU Affero General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU Affero General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula(R) is a registered trademark of Kern Sibbald.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
29 * Routines to acquire and release a device for read/write
31 * Kern Sibbald, August MMII
35 #include "bacula.h" /* pull in global headers */
36 #include "stored.h" /* pull in Storage Deamon headers */
38 /* Forward referenced functions */
39 static void attach_dcr_to_dev(DCR *dcr);
40 static void detach_dcr_from_dev(DCR *dcr);
41 static void set_dcr_from_vol(DCR *dcr, VOL_LIST *vol);
44 /*********************************************************************
45 * Acquire device for reading.
46 * The drive should have previously been reserved by calling
47 * reserve_device_for_read(). We read the Volume label from the block and
48 * leave the block pointers just after the label.
50 * Returns: NULL if failed for any reason
53 bool acquire_device_for_read(DCR *dcr)
55 DEVICE *dev = dcr->dev;
58 bool tape_previously_mounted;
60 bool try_autochanger = true;
65 Dmsg2(950, "dcr=%p dev=%p\n", dcr, dcr->dev);
66 Dmsg2(950, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
67 dev->dblock(BST_DOING_ACQUIRE);
69 if (dev->num_writers > 0) {
70 Jmsg2(jcr, M_FATAL, 0, _("Acquire read: num_writers=%d not zero. Job %d canceled.\n"),
71 dev->num_writers, jcr->JobId);
75 /* Find next Volume, if any */
79 Jmsg(jcr, M_FATAL, 0, _("No volumes specified for reading. Job %s canceled.\n"),
80 edit_int64(jcr->JobId, ed1));
84 for (i=1; i<jcr->CurReadVolume; i++) {
88 Jmsg(jcr, M_FATAL, 0, _("Logic error: no next volume to read. Numvol=%d Curvol=%d\n"),
89 jcr->NumReadVolumes, jcr->CurReadVolume);
90 goto get_out; /* should not happen */
92 set_dcr_from_vol(dcr, vol);
94 if (generate_plugin_event(jcr, bsdEventDeviceOpen, dcr) != bRC_OK) {
95 Jmsg(jcr, M_FATAL, 0, _("generate_plugin_event(bsdEventDeviceOpen) Failed\n"));
99 Dmsg2(100, "Want Vol=%s Slot=%d\n", vol->VolumeName, vol->Slot);
102 * If the MediaType requested for this volume is not the
103 * same as the current drive, we attempt to find the same
104 * device that was used to write the orginal volume. If
105 * found, we switch to using that device.
107 * N.B. A lot of routines rely on the dcr pointer not changing
108 * read_records.c even has multiple dcrs cached, so we take care
109 * here to release all important parts of the dcr and re-acquire
110 * them such as the block pointer (size may change), but we do
111 * not release the dcr.
113 Dmsg2(50, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
114 if (dcr->media_type[0] && strcmp(dcr->media_type, dev->device->media_type) != 0) {
119 Jmsg3(jcr, M_INFO, 0, _("Changing read device. Want Media Type=\"%s\" have=\"%s\"\n"
121 dcr->media_type, dev->device->media_type, dev->print_name());
122 Dmsg3(50, "Changing read device. Want Media Type=\"%s\" have=\"%s\"\n"
124 dcr->media_type, dev->device->media_type, dev->print_name());
126 generate_plugin_event(jcr, bsdEventDeviceClose, dcr);
128 dev->dunblock(DEV_UNLOCKED);
131 memset(&rctx, 0, sizeof(RCTX));
134 jcr->reserve_msgs = New(alist(10, not_owned_by_alist));
135 rctx.any_drive = true;
136 rctx.device_name = vol->device;
137 store = new DIRSTORE;
138 memset(store, 0, sizeof(DIRSTORE));
139 store->name[0] = 0; /* No dir name */
140 bstrncpy(store->media_type, vol->MediaType, sizeof(store->media_type));
141 bstrncpy(store->pool_name, dcr->pool_name, sizeof(store->pool_name));
142 bstrncpy(store->pool_type, dcr->pool_type, sizeof(store->pool_type));
143 store->append = false;
145 clean_device(dcr); /* clean up the dcr */
148 * Search for a new device
150 stat = search_res_for_device(rctx);
151 release_reserve_messages(jcr); /* release queued messages */
152 unlock_reservations();
155 dev = dcr->dev; /* get new device pointer */
156 dev->dblock(BST_DOING_ACQUIRE);
158 dcr->VolumeName[0] = 0;
159 Jmsg(jcr, M_INFO, 0, _("Media Type change. New read device %s chosen.\n"),
161 Dmsg1(50, "Media Type change. New read device %s chosen.\n", dev->print_name());
162 if (generate_plugin_event(jcr, bsdEventDeviceOpen, dcr) != bRC_OK) {
163 Jmsg(jcr, M_FATAL, 0, _("generate_plugin_event(bsdEventDeviceOpen) Failed\n"));
166 bstrncpy(dcr->VolumeName, vol->VolumeName, sizeof(dcr->VolumeName));
167 dcr->setVolCatName(vol->VolumeName);
168 bstrncpy(dcr->media_type, vol->MediaType, sizeof(dcr->media_type));
169 dcr->VolCatInfo.Slot = vol->Slot;
170 dcr->VolCatInfo.InChanger = vol->Slot > 0;
171 bstrncpy(dcr->pool_name, store->pool_name, sizeof(dcr->pool_name));
172 bstrncpy(dcr->pool_type, store->pool_type, sizeof(dcr->pool_type));
175 Jmsg1(jcr, M_FATAL, 0, _("No suitable device found to read Volume \"%s\"\n"),
177 Dmsg1(50, "No suitable device found to read Volume \"%s\"\n", vol->VolumeName);
181 Dmsg2(400, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
185 if (dev->vol && dev->vol->is_swapping()) {
186 dev->vol->set_slot(vol->Slot);
187 Dmsg3(100, "swapping: slot=%d Vol=%s dev=%s\n", dev->vol->get_slot(),
188 dev->vol->vol_name, dev->print_name());
191 init_device_wait_timers(dcr);
193 tape_previously_mounted = dev->can_read() || dev->can_append() ||
195 // tape_initially_mounted = tape_previously_mounted;
197 /* Volume info is always needed because of VolParts */
198 Dmsg1(150, "dir_get_volume_info vol=%s\n", dcr->VolumeName);
199 if (!dir_get_volume_info(dcr, GET_VOL_INFO_FOR_READ)) {
200 Dmsg2(150, "dir_get_vol_info failed for vol=%s: %s\n",
201 dcr->VolumeName, jcr->errmsg);
202 Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
204 dev->set_load(); /* set to load volume */
207 /* If not polling limit retries */
208 if (!dev->poll && retry++ > 10) {
211 dev->clear_labeled(); /* force reread of label */
212 if (job_canceled(jcr)) {
214 Mmsg1(dev->errmsg, _("Job %s canceled.\n"), edit_int64(jcr->JobId, ed1));
215 Jmsg(jcr, M_INFO, 0, dev->errmsg);
216 goto get_out; /* error return */
220 dcr->do_swapping(false/*!is_writing*/);
221 dcr->do_load(false /*!is_writing*/);
222 set_dcr_from_vol(dcr, vol); /* refresh dcr with desired volume info */
225 * This code ensures that the device is ready for
226 * reading. If it is a file, it opens it.
227 * If it is a tape, it checks the volume name
229 Dmsg1(100, "bstored: open vol=%s\n", dcr->VolumeName);
230 if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
232 Jmsg3(jcr, M_WARNING, 0, _("Read open device %s Volume \"%s\" failed: ERR=%s\n"),
233 dev->print_name(), dcr->VolumeName, dev->bstrerror());
237 Dmsg1(50, "opened dev %s OK\n", dev->print_name());
239 /* Read Volume Label */
240 Dmsg0(50, "calling read-vol-label\n");
241 vol_label_status = read_dev_volume_label(dcr);
242 switch (vol_label_status) {
244 Dmsg0(50, "Got correct volume.\n");
246 dev->VolCatInfo = dcr->VolCatInfo; /* structure assignment */
249 Dmsg0(50, "IO Error\n");
251 * Send error message generated by read_dev_volume_label()
252 * only we really had a tape mounted. This supresses superfluous
253 * error messages when nothing is mounted.
255 if (tape_previously_mounted) {
256 Jmsg(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
260 Dmsg3(50, "Vol name=%s want=%s drv=%s.\n", dev->VolHdr.VolumeName,
261 dcr->VolumeName, dev->print_name());
262 if (dev->is_volume_to_unload()) {
265 dev->set_unload(); /* force unload of unwanted tape */
266 if (!unload_autochanger(dcr, -1)) {
267 /* at least free the device so we can re-open with correct volume */
274 Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
276 Dmsg0(50, "default path\n");
277 tape_previously_mounted = true;
280 * If the device requires mount, close it, so the device can be ejected.
282 if (dev->requires_mount()) {
287 /* Call autochanger only once unless ask_sysop called */
288 if (try_autochanger) {
290 Dmsg2(200, "calling autoload Vol=%s Slot=%d\n",
291 dcr->VolumeName, dcr->VolCatInfo.Slot);
292 stat = autoload_device(dcr, 0, NULL);
294 try_autochanger = false;
295 continue; /* try reading volume mounted */
299 /* Mount a specific volume and no other */
300 Dmsg0(200, "calling dir_ask_sysop\n");
301 if (!dir_ask_sysop_to_mount_volume(dcr, ST_READ)) {
302 goto get_out; /* error return */
305 /* Volume info is always needed because of VolParts */
306 Dmsg1(150, "dir_get_volume_info vol=%s\n", dcr->VolumeName);
307 if (!dir_get_volume_info(dcr, GET_VOL_INFO_FOR_READ)) {
308 Dmsg2(150, "dir_get_vol_info failed for vol=%s: %s\n",
309 dcr->VolumeName, jcr->errmsg);
310 Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
312 dev->set_load(); /* set to load volume */
314 try_autochanger = true; /* permit trying the autochanger again */
316 continue; /* try reading again */
322 Jmsg1(jcr, M_FATAL, 0, _("Too many errors trying to mount device %s for reading.\n"),
329 jcr->sendJobStatus(JS_Running);
330 Jmsg(jcr, M_INFO, 0, _("Ready to read from volume \"%s\" on device %s.\n"),
331 dcr->VolumeName, dev->print_name());
335 /* If failed and not writing plugin close device */
336 if (!ok && dev->num_writers == 0) {
337 generate_plugin_event(jcr, bsdEventDeviceClose, dcr);
339 dcr->clear_reserved();
341 * Normally we are blocked, but in at least one error case above
342 * we are not blocked because we unsuccessfully tried changing
345 if (dev->is_blocked()) {
346 dev->dunblock(DEV_LOCKED);
348 dev->dunlock(); /* dunblock() unlock the device too */
350 Dmsg2(950, "dcr=%p dev=%p\n", dcr, dcr->dev);
351 Dmsg2(950, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
356 * Acquire device for writing. We permit multiple writers.
357 * If this is the first one, we read the label.
359 * Returns: NULL if failed for any reason
361 * Note, normally reserve_device_for_append() is called
362 * before this routine.
364 DCR *acquire_device_for_append(DCR *dcr)
366 DEVICE *dev = dcr->dev;
369 bool have_vol = false;
371 init_device_wait_timers(dcr);
373 P(dev->acquire_mutex); /* only one job at a time */
375 Dmsg1(100, "acquire_append device is %s\n", dev->is_tape()?"tape":
376 (dev->is_dvd()?"DVD":"disk"));
380 * With the reservation system, this should not happen
382 if (dev->can_read()) {
383 Jmsg1(jcr, M_FATAL, 0, _("Want to append, but device %s is busy reading.\n"), dev->print_name());
384 Dmsg1(200, "Want to append but device %s is busy reading.\n", dev->print_name());
391 * have_vol defines whether or not mount_next_write_volume should
392 * ask the Director again about what Volume to use.
394 if (dev->can_append() && dcr->is_suitable_volume_mounted() &&
395 strcmp(dcr->VolCatInfo.VolCatStatus, "Recycle") != 0) {
396 Dmsg0(190, "device already in append.\n");
398 * At this point, the correct tape is already mounted, so
399 * we do not need to do mount_next_write_volume(), unless
400 * we need to recycle the tape.
402 if (dev->num_writers == 0) {
403 dev->VolCatInfo = dcr->VolCatInfo; /* structure assignment */
405 have_vol = dcr->is_tape_position_ok();
410 block_device(dev, BST_DOING_ACQUIRE);
412 Dmsg1(190, "jid=%u Do mount_next_write_vol\n", (uint32_t)jcr->JobId);
413 if (!dcr->mount_next_write_volume()) {
414 if (!job_canceled(jcr)) {
415 /* Reduce "noise" -- don't print if job canceled */
416 Jmsg(jcr, M_FATAL, 0, _("Could not ready device %s for append.\n"),
418 Dmsg1(200, "Could not ready device %s for append.\n",
425 Dmsg2(190, "Output pos=%u:%u\n", dcr->dev->file, dcr->dev->block_num);
430 if (generate_plugin_event(jcr, bsdEventDeviceOpen, dcr) != bRC_OK) {
431 Jmsg(jcr, M_FATAL, 0, _("generate_plugin_event(bsdEventDeviceOpen) Failed\n"));
435 dev->num_writers++; /* we are now a writer */
436 if (jcr->NumWriteVolumes == 0) {
437 jcr->NumWriteVolumes = 1;
439 dev->VolCatInfo.VolCatJobs++; /* increment number of jobs on vol */
440 Dmsg4(100, "=== nwriters=%d nres=%d vcatjob=%d dev=%s\n",
441 dev->num_writers, dev->num_reserved(), dev->VolCatInfo.VolCatJobs,
443 dir_update_volume_info(dcr, false, false); /* send Volume info to Director */
447 /* Don't plugin close here, we might have multiple writers */
448 dcr->clear_reserved();
450 V(dev->acquire_mutex);
451 return ok ? dcr : NULL;
455 * This job is done, so release the device. From a Unix standpoint,
456 * the device remains open.
458 * Note, if we were spooling, we may enter with the device blocked.
459 * We unblock at the end, only if it was us who blocked the
463 bool release_device(DCR *dcr)
466 DEVICE *dev = dcr->dev;
469 int was_blocked = BST_NOT_BLOCKED;
472 if (!dev->is_blocked()) {
473 block_device(dev, BST_RELEASING);
475 was_blocked = dev->blocked();
476 dev->set_blocked(BST_RELEASING);
479 Dmsg2(100, "release_device device %s is %s\n", dev->print_name(), dev->is_tape()?"tape":"disk");
481 /* if device is reserved, job never started, so release the reserve here */
482 dcr->clear_reserved();
484 if (dev->can_read()) {
485 VOLUME_CAT_INFO *vol = &dev->VolCatInfo;
486 generate_plugin_event(jcr, bsdEventDeviceClose, dcr);
487 dev->clear_read(); /* clear read bit */
488 Dmsg2(150, "dir_update_vol_info. label=%d Vol=%s\n",
489 dev->is_labeled(), vol->VolCatName);
490 if (dev->is_labeled() && vol->VolCatName[0] != 0) {
491 dir_update_volume_info(dcr, false, false); /* send Volume info to Director */
492 remove_read_volume(jcr, dcr->VolumeName);
495 } else if (dev->num_writers > 0) {
497 * Note if WEOT is set, we are at the end of the tape
498 * and may not be positioned correctly, so the
499 * job_media_record and update_vol_info have already been
500 * done, which means we skip them here.
503 Dmsg1(100, "There are %d writers in release_device\n", dev->num_writers);
504 if (dev->is_labeled()) {
505 Dmsg2(200, "dir_create_jobmedia. Release vol=%s dev=%s\n",
506 dev->getVolCatName(), dev->print_name());
507 if (!dev->at_weot() && !dir_create_jobmedia_record(dcr)) {
508 Jmsg2(jcr, M_FATAL, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
509 dcr->getVolCatName(), jcr->Job);
511 /* If no more writers, and no errors, and wrote something, write an EOF */
512 if (!dev->num_writers && dev->can_write() && dev->block_num > 0) {
514 write_ansi_ibm_labels(dcr, ANSI_EOF_LABEL, dev->VolHdr.VolumeName);
516 if (!dev->at_weot()) {
517 dev->VolCatInfo.VolCatFiles = dev->file; /* set number of files */
518 /* Note! do volume update before close, which zaps VolCatInfo */
519 dir_update_volume_info(dcr, false, false); /* send Volume info to Director */
520 Dmsg2(200, "dir_update_vol_info. Release vol=%s dev=%s\n",
521 dev->getVolCatName(), dev->print_name());
523 if (dev->num_writers == 0) { /* if not being used */
524 volume_unused(dcr); /* we obviously are not using the volume */
530 * If we reach here, it is most likely because the job
531 * has failed, since the device is not in read mode and
532 * there are no writers. It was probably reserved.
536 Dmsg3(100, "%d writers, %d reserve, dev=%s\n", dev->num_writers, dev->num_reserved(),
539 /* If no writers, close if file or !CAP_ALWAYS_OPEN */
540 if (dev->num_writers == 0 && (!dev->is_tape() || !dev->has_cap(CAP_ALWAYSOPEN))) {
541 generate_plugin_event(jcr, bsdEventDeviceClose, dcr);
542 dvd_remove_empty_part(dcr); /* get rid of any empty spool part */
547 /* Fire off Alert command and include any output */
548 if (!job_canceled(jcr) && dcr->device->alert_command) {
552 char line[MAXSTRING];
553 alert = get_pool_memory(PM_FNAME);
554 alert = edit_device_codes(dcr, alert, dcr->device->alert_command, "");
555 /* Wait maximum 5 minutes */
556 bpipe = open_bpipe(alert, 60 * 5, "r");
558 while (fgets(line, sizeof(line), bpipe->rfd)) {
559 Jmsg(jcr, M_ALERT, 0, _("Alert: %s"), line);
561 status = close_bpipe(bpipe);
567 Jmsg(jcr, M_ALERT, 0, _("3997 Bad alert command: %s: ERR=%s.\n"),
568 alert, be.bstrerror(status));
571 Dmsg1(400, "alert status=%d\n", status);
572 free_pool_memory(alert);
574 pthread_cond_broadcast(&dev->wait_next_vol);
575 Dmsg2(100, "JobId=%u broadcast wait_device_release at %s\n",
576 (uint32_t)jcr->JobId, bstrftimes(tbuf, sizeof(tbuf), (utime_t)time(NULL)));
577 pthread_cond_broadcast(&wait_device_release);
581 * If we are the thread that blocked the device, then unblock it
583 if (pthread_equal(dev->no_wait_id, pthread_self())) {
586 /* Otherwise, reset the prior block status and unlock */
587 dev->set_blocked(was_blocked);
592 detach_dcr_from_dev(dcr);
596 Dmsg2(100, "===== Device %s released by JobId=%u\n", dev->print_name(),
597 (uint32_t)jcr->JobId);
602 * Clean up the device for reuse without freeing the memory
604 bool clean_device(DCR *dcr)
607 dcr->keep_dcr = true; /* do not free the dcr */
608 ok = release_device(dcr);
609 dcr->keep_dcr = false;
614 * Create a new Device Control Record and attach
615 * it to the device (if this is a real job).
616 * Note, this has been updated so that it can be called first
617 * without a DEVICE, then a second or third time with a DEVICE,
618 * and each time, it should cleanup and point to the new device.
619 * This should facilitate switching devices.
620 * Note, each dcr must point to the controlling job (jcr). However,
621 * a job can have multiple dcrs, so we must not store in the jcr's
622 * structure as previously. The higher level routine must store
623 * this dcr in the right place
626 DCR *new_dcr(JCR *jcr, DCR *dcr, DEVICE *dev)
630 dcr = (DCR *)malloc(sizeof(DCR));
631 memset(dcr, 0, sizeof(DCR));
632 dcr->tid = pthread_self();
634 if ((errstat = pthread_mutex_init(&dcr->m_mutex, NULL)) != 0) {
636 dev->dev_errno = errstat;
637 Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.bstrerror(errstat));
638 Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
641 dcr->jcr = jcr; /* point back to jcr */
642 /* Set device information, possibly change device */
645 free_block(dcr->block);
647 dcr->block = new_block(dev);
649 free_record(dcr->rec);
651 dcr->rec = new_record();
652 if (dcr->attached_to_dev) {
653 detach_dcr_from_dev(dcr);
655 /* Use job spoolsize prior to device spoolsize */
656 if (jcr->spool_size) {
657 dcr->max_job_spool_size = jcr->spool_size;
659 dcr->max_job_spool_size = dev->device->max_job_spool_size;
661 dcr->device = dev->device;
663 attach_dcr_to_dev(dcr);
669 * Search the dcrs list for the given dcr. If it is found,
670 * as it should be, then remove it. Also zap the jcr pointer
671 * to the dcr if it is the same one.
673 * Note, this code will be turned on when we can write to multiple
674 * dcrs at the same time.
677 static void remove_dcr_from_dcrs(DCR *dcr)
683 int num = jcr->dcrs->size();
684 for (i=0; i < num; i++) {
685 ldcr = (DCR *)jcr->dcrs->get(i);
687 jcr->dcrs->remove(i);
688 if (jcr->dcr == dcr) {
697 static void attach_dcr_to_dev(DCR *dcr)
705 if (jcr) Dmsg1(500, "JobId=%u enter attach_dcr_to_dev\n", (uint32_t)jcr->JobId);
706 /* ***FIXME*** return error if dev not initiated */
707 if (!dcr->attached_to_dev && dev->initiated && jcr && jcr->getJobType() != JT_SYSTEM) {
709 dev->attached_dcrs->append(dcr); /* attach dcr to device */
711 dcr->attached_to_dev = true;
712 Dmsg1(500, "JobId=%u attach_dcr_to_dev\n", (uint32_t)jcr->JobId);
718 * DCR is locked before calling this routine
720 static void locked_detach_dcr_from_dev(DCR *dcr)
722 DEVICE *dev = dcr->dev;
723 Dmsg0(500, "Enter detach_dcr_from_dev\n"); /* jcr is NULL in some cases */
725 /* Detach this dcr only if attached */
726 if (dcr->attached_to_dev && dev) {
727 dcr->unreserve_device();
729 dcr->dev->attached_dcrs->remove(dcr); /* detach dcr from device */
730 // remove_dcr_from_dcrs(dcr); /* remove dcr from jcr list */
733 dcr->attached_to_dev = false;
737 static void detach_dcr_from_dev(DCR *dcr)
740 locked_detach_dcr_from_dev(dcr);
745 * Free up all aspects of the given dcr -- i.e. dechain it,
746 * release allocated memory, zap pointers, ...
748 void free_dcr(DCR *dcr)
755 locked_detach_dcr_from_dev(dcr);
758 free_block(dcr->block);
761 free_record(dcr->rec);
763 if (jcr && jcr->dcr == dcr) {
766 if (jcr && jcr->read_dcr == dcr) {
767 jcr->read_dcr = NULL;
770 pthread_mutex_destroy(&dcr->m_mutex);
774 static void set_dcr_from_vol(DCR *dcr, VOL_LIST *vol)
777 * Note, if we want to be able to work from a .bsr file only
778 * for disaster recovery, we must "simulate" reading the catalog
780 bstrncpy(dcr->VolumeName, vol->VolumeName, sizeof(dcr->VolumeName));
781 dcr->setVolCatName(vol->VolumeName);
782 bstrncpy(dcr->media_type, vol->MediaType, sizeof(dcr->media_type));
783 dcr->VolCatInfo.Slot = vol->Slot;
784 dcr->VolCatInfo.InChanger = vol->Slot > 0;