/*
Bacula® - The Network Backup Solution
- Copyright (C) 2002-2008 Free Software Foundation Europe e.V.
+ Copyright (C) 2002-2009 Free Software Foundation Europe e.V.
The main author of Bacula is Kern Sibbald, with contributions from
many others, a complete list can be found in the file AUTHORS.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Bacula® is a registered trademark of John Walker.
+ Bacula® is a registered trademark of Kern Sibbald.
The licensor of Bacula is the Free Software Foundation Europe
(FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
Switzerland, email:ftf@fsfeurope.org.
*
* Kern Sibbald, August MMII
*
- * Version $Id$
*/
#include "bacula.h" /* pull in global headers */
/* Forward referenced functions */
static void attach_dcr_to_dev(DCR *dcr);
-static bool is_tape_position_ok(JCR *jcr, DEVICE *dev);
+static void detach_dcr_from_dev(DCR *dcr);
+static void set_dcr_from_vol(DCR *dcr, VOL_LIST *vol);
/*********************************************************************
int vol_label_status;
int retry = 0;
- Dmsg1(950, "jcr->dcr=%p\n", jcr->dcr);
+ Dmsg2(950, "dcr=%p dev=%p\n", dcr, dcr->dev);
+ Dmsg2(950, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
dev->dblock(BST_DOING_ACQUIRE);
if (dev->num_writers > 0) {
jcr->NumReadVolumes, jcr->CurReadVolume);
goto get_out; /* should not happen */
}
- bstrncpy(dcr->VolumeName, vol->VolumeName, sizeof(dcr->VolumeName));
- bstrncpy(dcr->media_type, vol->MediaType, sizeof(dcr->media_type));
- dcr->VolCatInfo.Slot = vol->Slot;
+ set_dcr_from_vol(dcr, vol);
+
+ Dmsg2(100, "Want Vol=%s Slot=%d\n", vol->VolumeName, vol->Slot);
/*
* If the MediaType requested for this volume is not the
DIRSTORE *store;
int stat;
- Jmsg3(jcr, M_INFO, 0, _("Changing device. Want Media Type=\"%s\" have=\"%s\"\n"
+ Jmsg3(jcr, M_INFO, 0, _("Changing read device. Want Media Type=\"%s\" have=\"%s\"\n"
" device=%s\n"),
dcr->media_type, dev->device->media_type, dev->print_name());
- Dmsg3(50, "Changing device. Want Media Type=\"%s\" have=\"%s\"\n"
+ Dmsg3(50, "Changing read device. Want Media Type=\"%s\" have=\"%s\"\n"
" device=%s\n",
dcr->media_type, dev->device->media_type, dev->print_name());
lock_reservations();
memset(&rctx, 0, sizeof(RCTX));
rctx.jcr = jcr;
+ jcr->read_dcr = dcr;
jcr->reserve_msgs = New(alist(10, not_owned_by_alist));
rctx.any_drive = true;
rctx.device_name = vol->device;
dev = dcr->dev; /* get new device pointer */
dev->dblock(BST_DOING_ACQUIRE);
dcr->VolumeName[0] = 0;
- Jmsg(jcr, M_INFO, 0, _("Media Type change. New device %s chosen.\n"),
+ Jmsg(jcr, M_INFO, 0, _("Media Type change. New read device %s chosen.\n"),
dev->print_name());
- Dmsg1(50, "Media Type change. New device %s chosen.\n", dev->print_name());
+ Dmsg1(50, "Media Type change. New read device %s chosen.\n", dev->print_name());
bstrncpy(dcr->VolumeName, vol->VolumeName, sizeof(dcr->VolumeName));
+ bstrncpy(dcr->VolCatInfo.VolCatName, vol->VolumeName, sizeof(dcr->VolCatInfo.VolCatName));
bstrncpy(dcr->media_type, vol->MediaType, sizeof(dcr->media_type));
dcr->VolCatInfo.Slot = vol->Slot;
+ dcr->VolCatInfo.InChanger = vol->Slot > 0;
bstrncpy(dcr->pool_name, store->pool_name, sizeof(dcr->pool_name));
bstrncpy(dcr->pool_type, store->pool_type, sizeof(dcr->pool_type));
} else {
goto get_out;
}
}
+ Dmsg2(400, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
+ dev->clear_unload();
+
+ if (dev->vol && dev->vol->is_swapping()) {
+ dev->vol->set_slot(vol->Slot);
+ Dmsg3(100, "swapping: slot=%d Vol=%s dev=%s\n", dev->vol->get_slot(),
+ dev->vol->vol_name, dev->print_name());
+ }
init_device_wait_timers(dcr);
/* Volume info is always needed because of VolParts */
- Dmsg0(200, "dir_get_volume_info\n");
+ Dmsg1(150, "dir_get_volume_info vol=%s\n", dcr->VolumeName);
if (!dir_get_volume_info(dcr, GET_VOL_INFO_FOR_READ)) {
- Jmsg1(jcr, M_WARNING, 0, "%s", jcr->errmsg);
+ Dmsg2(150, "dir_get_vol_info failed for vol=%s: %s\n",
+ dcr->VolumeName, jcr->errmsg);
+ Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
}
+ dev->set_load(); /* set to load volume */
for ( ;; ) {
/* If not polling limit retries */
goto get_out; /* error return */
}
- autoload_device(dcr, 0, NULL);
+ dcr->do_unload();
+ dcr->do_swapping(false/*!is_writing*/);
+ dcr->do_load(false /*!is_writing*/);
+ set_dcr_from_vol(dcr, vol); /* refresh dcr with desired volume info */
/*
* This code ensures that the device is ready for
*/
Dmsg1(100, "bstored: open vol=%s\n", dcr->VolumeName);
if (dev->open(dcr, OPEN_READ_ONLY) < 0) {
- Jmsg3(jcr, M_WARNING, 0, _("Read open device %s Volume \"%s\" failed: ERR=%s\n"),
- dev->print_name(), dcr->VolumeName, dev->bstrerror());
+ if (!dev->poll) {
+ Jmsg3(jcr, M_WARNING, 0, _("Read open device %s Volume \"%s\" failed: ERR=%s\n"),
+ dev->print_name(), dcr->VolumeName, dev->bstrerror());
+ }
goto default_path;
}
Dmsg1(50, "opened dev %s OK\n", dev->print_name());
vol_label_status = read_dev_volume_label(dcr);
switch (vol_label_status) {
case VOL_OK:
+ Dmsg0(50, "Got correct volume.\n");
ok = true;
- memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo));
+ dev->VolCatInfo = dcr->VolCatInfo; /* structure assignment */
break; /* got it */
case VOL_IO_ERROR:
+ Dmsg0(50, "IO Error\n");
/*
* Send error message generated by read_dev_volume_label()
* only we really had a tape mounted. This supresses superfluous
* error messages when nothing is mounted.
*/
if (tape_previously_mounted) {
- Jmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg);
+ Jmsg(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
}
goto default_path;
case VOL_NAME_ERROR:
- if (tape_initially_mounted) {
- tape_initially_mounted = false;
+ Dmsg3(50, "Vol name=%s want=%s drv=%s.\n", dev->VolHdr.VolumeName,
+ dcr->VolumeName, dev->print_name());
+ if (dev->is_volume_to_unload()) {
goto default_path;
}
- /* If polling and got a previous bad name, ignore it */
- if (dev->poll && strcmp(dev->BadVolName, dev->VolHdr.VolumeName) == 0) {
- goto default_path;
- } else {
- bstrncpy(dev->BadVolName, dev->VolHdr.VolumeName, sizeof(dev->BadVolName));
+ dev->set_unload(); /* force unload of unwanted tape */
+ if (!unload_autochanger(dcr, -1)) {
+ /* at least free the device so we can re-open with correct volume */
+ dev->close();
+ free_volume(dev);
}
+ dev->set_load();
/* Fall through */
default:
- Jmsg1(jcr, M_WARNING, 0, "%s", jcr->errmsg);
+ Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
default_path:
+ Dmsg0(50, "default path\n");
tape_previously_mounted = true;
/*
*/
if (dev->requires_mount()) {
dev->close();
+ free_volume(dev);
}
/* Call autochanger only once unless ask_sysop called */
if (!dir_ask_sysop_to_mount_volume(dcr, ST_READ)) {
goto get_out; /* error return */
}
- try_autochanger = true; /* permit using autochanger again */
+
+ /* Volume info is always needed because of VolParts */
+ Dmsg1(150, "dir_get_volume_info vol=%s\n", dcr->VolumeName);
+ if (!dir_get_volume_info(dcr, GET_VOL_INFO_FOR_READ)) {
+ Dmsg2(150, "dir_get_vol_info failed for vol=%s: %s\n",
+ dcr->VolumeName, jcr->errmsg);
+ Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
+ }
+ dev->set_load(); /* set to load volume */
+
+ try_autochanger = true; /* permit trying the autochanger again */
+
continue; /* try reading again */
} /* end switch */
break;
} /* end for loop */
+
if (!ok) {
Jmsg1(jcr, M_FATAL, 0, _("Too many errors trying to mount device %s for reading.\n"),
dev->print_name());
*/
if (dev->is_blocked()) {
dev->dunblock(DEV_LOCKED);
+ } else {
+ dev->dunlock(); /* dunblock() unlock the device too */
}
- Dmsg1(950, "jcr->dcr=%p\n", jcr->dcr);
+ Dmsg2(950, "dcr=%p dev=%p\n", dcr, dcr->dev);
+ Dmsg2(950, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
return ok;
}
-
/*
* Acquire device for writing. We permit multiple writers.
* If this is the first one, we read the label.
DEVICE *dev = dcr->dev;
JCR *jcr = dcr->jcr;
bool ok = false;
+ bool have_vol = false;
init_device_wait_timers(dcr);
- dev->dblock(BST_DOING_ACQUIRE);
+ P(dev->acquire_mutex); /* only one job at a time */
+ dev->dlock();
Dmsg1(100, "acquire_append device is %s\n", dev->is_tape()?"tape":
(dev->is_dvd()?"DVD":"disk"));
goto get_out;
}
+ dev->clear_unload();
+
/*
* have_vol defines whether or not mount_next_write_volume should
* ask the Director again about what Volume to use.
if (dev->num_writers == 0) {
memcpy(&dev->VolCatInfo, &dcr->VolCatInfo, sizeof(dev->VolCatInfo));
}
- if (!is_tape_position_ok(jcr, dev)) {
- goto get_out;
- }
- } else {
+ have_vol = dcr->is_tape_position_ok();
+ }
+
+ if (!have_vol) {
+ dev->r_dlock(true);
+ block_device(dev, BST_DOING_ACQUIRE);
+ dev->dunlock();
Dmsg1(190, "jid=%u Do mount_next_write_vol\n", (uint32_t)jcr->JobId);
if (!dcr->mount_next_write_volume()) {
if (!job_canceled(jcr)) {
Dmsg1(200, "Could not ready device %s for append.\n",
dev->print_name());
}
+ dev->dlock();
+ unblock_device(dev);
goto get_out;
}
Dmsg2(190, "Output pos=%u:%u\n", dcr->dev->file, dcr->dev->block_num);
+ dev->dlock();
+ unblock_device(dev);
}
dev->num_writers++; /* we are now a writer */
jcr->NumWriteVolumes = 1;
}
dev->VolCatInfo.VolCatJobs++; /* increment number of jobs on vol */
+ Dmsg4(100, "=== nwriters=%d nres=%d vcatjob=%d dev=%s\n",
+ dev->num_writers, dev->num_reserved(), dev->VolCatInfo.VolCatJobs,
+ dev->print_name());
dir_update_volume_info(dcr, false, false); /* send Volume info to Director */
ok = true;
get_out:
- dev->dlock();
dcr->clear_reserved();
- dev->dunblock(DEV_LOCKED);
+ dev->dunlock();
+ V(dev->acquire_mutex);
return ok ? dcr : NULL;
}
-/*
- * Insanity check
- *
- * Check to see if the tape position as defined by the OS is
- * the same as our concept. If it is not, we bail out, because
- * it means the user has probably manually rewound the tape.
- * Note, we check only if num_writers == 0, but this code will
- * also work fine for any number of writers. If num_writers > 0,
- * we probably should cancel all jobs using this device, or
- * perhaps even abort the SD, or at a minimum, mark the tape
- * in error. Another strategy with num_writers == 0, would be
- * to rewind the tape and do a new eod() request.
- */
-static bool is_tape_position_ok(JCR *jcr, DEVICE *dev)
-{
- if (dev->is_tape() && dev->num_writers == 0) {
- int32_t file = dev->get_os_tape_file();
- if (file >= 0 && file != (int32_t)dev->get_file()) {
- Jmsg(jcr, M_FATAL, 0, _("Invalid tape position on volume \"%s\""
- " on device %s. Expected %d, got %d\n"),
- dev->VolHdr.VolumeName, dev->print_name(), dev->get_file(), file);
- return false;
- }
- }
- return true;
-}
-
-
/*
* This job is done, so release the device. From a Unix standpoint,
* the device remains open.
*
- * Note, if we are spooling, we may enter with the device locked.
- * However, in all cases, unlock the device when leaving.
+ * Note, if we are spooling, we may enter with the device blocked.
+ * However, in all cases, unblock the device when leaving.
*
*/
bool release_device(DCR *dcr)
JCR *jcr = dcr->jcr;
DEVICE *dev = dcr->dev;
bool ok = true;
+ char tbuf[100];
- /* lock only if not already locked by this thread */
- if (!dcr->is_dev_locked()) {
- dev->r_dlock();
+ dev->dlock();
+ if (!dev->is_blocked()) {
+ block_device(dev, BST_RELEASING);
+ } else if (dev->blocked() == BST_DESPOOLING) {
+ dev->set_blocked(BST_RELEASING);
}
lock_volumes();
Dmsg2(100, "release_device device %s is %s\n", dev->print_name(), dev->is_tape()?"tape":"disk");
dcr->clear_reserved();
if (dev->can_read()) {
+ VOLUME_CAT_INFO *vol = &dev->VolCatInfo;
dev->clear_read(); /* clear read bit */
- Dmsg0(100, "dir_update_vol_info. Release0\n");
- dir_update_volume_info(dcr, false, false); /* send Volume info to Director */
- volume_unused(dcr);
-
+ Dmsg2(150, "dir_update_vol_info. label=%d Vol=%s\n",
+ dev->is_labeled(), vol->VolCatName);
+ if (dev->is_labeled() && vol->VolCatName[0] != 0) {
+ dir_update_volume_info(dcr, false, false); /* send Volume info to Director */
+ remove_read_volume(jcr, dcr->VolumeName);
+ volume_unused(dcr);
+ }
} else if (dev->num_writers > 0) {
/*
* Note if WEOT is set, we are at the end of the tape
Dmsg2(200, "dir_create_jobmedia. Release vol=%s dev=%s\n",
dev->VolCatInfo.VolCatName, dev->print_name());
if (!dev->at_weot() && !dir_create_jobmedia_record(dcr)) {
- Jmsg(jcr, M_FATAL, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
+ Jmsg2(jcr, M_FATAL, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
dcr->VolCatInfo.VolCatName, jcr->Job);
}
/* If no more writers, and no errors, and wrote something, write an EOF */
Dmsg2(200, "dir_update_vol_info. Release vol=%s dev=%s\n",
dev->VolCatInfo.VolCatName, dev->print_name());
}
- if (!dev->is_busy()) { /* if not being used */
+ if (dev->num_writers == 0) { /* if not being used */
volume_unused(dcr); /* we obviously are not using the volume */
}
}
*/
volume_unused(dcr);
}
- unlock_volumes();
+ Dmsg3(100, "%d writers, %d reserve, dev=%s\n", dev->num_writers, dev->num_reserved(),
+ dev->print_name());
/* If no writers, close if file or !CAP_ALWAYS_OPEN */
if (dev->num_writers == 0 && (!dev->is_tape() || !dev->has_cap(CAP_ALWAYSOPEN))) {
dvd_remove_empty_part(dcr); /* get rid of any empty spool part */
dev->close();
+ free_volume(dev);
}
/* Fire off Alert command and include any output */
free_pool_memory(alert);
}
pthread_cond_broadcast(&dev->wait_next_vol);
- Dmsg1(100, "JobId=%u broadcast wait_device_release\n", (uint32_t)jcr->JobId);
+ Dmsg2(100, "JobId=%u broadcast wait_device_release at %s\n",
+ (uint32_t)jcr->JobId, bstrftimes(tbuf, sizeof(tbuf), (utime_t)time(NULL)));
pthread_cond_broadcast(&wait_device_release);
- dev->dunlock();
+ unlock_volumes();
+ dev->dunblock(true);
if (dcr->keep_dcr) {
detach_dcr_from_dev(dcr);
} else {
- if (jcr->read_dcr == dcr) {
- jcr->read_dcr = NULL;
- }
- if (jcr->dcr == dcr) {
- jcr->dcr = NULL;
- }
free_dcr(dcr);
}
Dmsg2(100, "===== Device %s released by JobId=%u\n", dev->print_name(),
DCR *new_dcr(JCR *jcr, DCR *dcr, DEVICE *dev)
{
if (!dcr) {
+ int errstat;
dcr = (DCR *)malloc(sizeof(DCR));
memset(dcr, 0, sizeof(DCR));
dcr->tid = pthread_self();
dcr->spool_fd = -1;
+ if ((errstat = pthread_mutex_init(&dcr->m_mutex, NULL)) != 0) {
+ berrno be;
+ dev->dev_errno = errstat;
+ Mmsg1(dev->errmsg, _("Unable to init mutex: ERR=%s\n"), be.bstrerror(errstat));
+ Jmsg0(jcr, M_ERROR_TERM, 0, dev->errmsg);
+ }
}
dcr->jcr = jcr; /* point back to jcr */
/* Set device information, possibly change device */
static void attach_dcr_to_dev(DCR *dcr)
{
- DEVICE *dev = dcr->dev;
- JCR *jcr = dcr->jcr;
+ DEVICE *dev;
+ JCR *jcr;
+ P(dcr->m_mutex);
+ dev = dcr->dev;
+ jcr = dcr->jcr;
if (jcr) Dmsg1(500, "JobId=%u enter attach_dcr_to_dev\n", (uint32_t)jcr->JobId);
- if (!dcr->attached_to_dev && dev->initiated && jcr && jcr->JobType != JT_SYSTEM) {
+ if (!dcr->attached_to_dev && dev->initiated && jcr && jcr->getJobType() != JT_SYSTEM) {
dev->attached_dcrs->append(dcr); /* attach dcr to device */
dcr->attached_to_dev = true;
Dmsg1(500, "JobId=%u attach_dcr_to_dev\n", (uint32_t)jcr->JobId);
}
+ V(dcr->m_mutex);
}
-void detach_dcr_from_dev(DCR *dcr)
+/*
+ * DCR is locked before calling this routine
+ */
+static void locked_detach_dcr_from_dev(DCR *dcr)
{
DEVICE *dev = dcr->dev;
Dmsg0(500, "Enter detach_dcr_from_dev\n"); /* jcr is NULL in some cases */
/* Detach this dcr only if attached */
if (dcr->attached_to_dev && dev) {
- dev->dlock();
dcr->unreserve_device();
+ dev->dlock();
dcr->dev->attached_dcrs->remove(dcr); /* detach dcr from device */
- dcr->attached_to_dev = false;
// remove_dcr_from_dcrs(dcr); /* remove dcr from jcr list */
dev->dunlock();
}
+ dcr->attached_to_dev = false;
+}
+
+
+static void detach_dcr_from_dev(DCR *dcr)
+{
+ P(dcr->m_mutex);
+ locked_detach_dcr_from_dev(dcr);
+ V(dcr->m_mutex);
}
/*
*/
void free_dcr(DCR *dcr)
{
- JCR *jcr = dcr->jcr;
+ JCR *jcr;
- detach_dcr_from_dev(dcr);
+ P(dcr->m_mutex);
+ jcr = dcr->jcr;
+ locked_detach_dcr_from_dev(dcr);
if (dcr->block) {
free_block(dcr->block);
if (jcr && jcr->dcr == dcr) {
jcr->dcr = NULL;
}
+ if (jcr && jcr->read_dcr == dcr) {
+ jcr->read_dcr = NULL;
+ }
+ V(dcr->m_mutex);
+ pthread_mutex_destroy(&dcr->m_mutex);
free(dcr);
}
+
+static void set_dcr_from_vol(DCR *dcr, VOL_LIST *vol)
+{
+ /*
+ * Note, if we want to be able to work from a .bsr file only
+ * for disaster recovery, we must "simulate" reading the catalog
+ */
+ bstrncpy(dcr->VolumeName, vol->VolumeName, sizeof(dcr->VolumeName));
+ bstrncpy(dcr->VolCatInfo.VolCatName, vol->VolumeName, sizeof(dcr->VolCatInfo.VolCatName));
+ bstrncpy(dcr->media_type, vol->MediaType, sizeof(dcr->media_type));
+ dcr->VolCatInfo.Slot = vol->Slot;
+ dcr->VolCatInfo.InChanger = vol->Slot > 0;
+}
projects / bacula / bacula / blobdiff