/**
* Request to mount specific Volume
*
* Entered with device blocked and dcr->VolumeName is desired
* volume.
* Leaves with device blocked.
*
* Returns: true on success (operator issues a mount command)
* false on failure
* Note, must create dev->errmsg on error return.
*
*/
bool dir_ask_sysop_to_mount_volume(DCR *dcr, int mode)
{
int status = W_TIMEOUT;
DEVICE *dev = dcr->dev;
JCR *jcr = dcr->jcr;
Dmsg0(dbglvl, "enter dir_ask_sysop_to_mount_volume\n");
if (!dcr->VolumeName[0]) {
Mmsg0(dev->errmsg, _("Cannot request another volume: no volume name given.\n"));
return false;
}
ASSERT(dev->blocked());
for ( ;; ) {
if (job_canceled(jcr)) {
Mmsg(dev->errmsg, _("Job %s canceled while waiting for mount on Storage Device %s.\n"),
jcr->Job, dev->print_name());
return false;
}
/*
* If we are not polling, and the wait timeout or the
* user explicitly did a mount, send him the message.
* Otherwise skip it.
*/
if (!dev->poll && (status == W_TIMEOUT || status == W_MOUNT)) {
const char *msg;
if (mode == ST_APPENDREADY) {
msg = _("Please mount append Volume \"%s\" or label a new one for:\n"
" Job: %s\n"
" Storage: %s\n"
" Pool: %s\n"
" Media type: %s\n");
} else {
msg = _("Please mount read Volume \"%s\" for:\n"
" Job: %s\n"
" Storage: %s\n"
" Pool: %s\n"
" Media type: %s\n");
}
Jmsg(jcr, M_MOUNT, 0, msg, dcr->VolumeName, jcr->Job,
dev->print_name(), dcr->pool_name, dcr->media_type);
Dmsg3(dbglvl, "Mount \"%s\" on device \"%s\" for Job %s\n",
dcr->VolumeName, dev->print_name(), jcr->Job);
}
jcr->sendJobStatus(JS_WaitMount);
status = wait_for_sysop(dcr); /* wait on device */
Dmsg1(dbglvl, "Back from wait_for_sysop status=%d\n", status);
if (dev->poll) {
Dmsg1(dbglvl, "Poll timeout in mount vol on device %s\n", dev->print_name());
Dmsg1(dbglvl, "Blocked=%s\n", dev->print_blocked());
goto get_out;
}
if (status == W_TIMEOUT) {
if (!double_dev_wait_time(dev)) {
Mmsg(dev->errmsg, _("Max time exceeded waiting to mount Storage Device %s for Job %s\n"),
dev->print_name(), jcr->Job);
Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
Dmsg1(dbglvl, "Gave up waiting on device %s\n", dev->print_name());
return false; /* exceeded maximum waits */
}
continue;
}
if (status == W_ERROR) {
berrno be;
Mmsg(dev->errmsg, _("pthread error in mount_volume\n"));
Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
return false;
}
Dmsg1(dbglvl, "Someone woke me for device %s\n", dev->print_name());
break;
}
get_out:
jcr->sendJobStatus(JS_Running);
Dmsg0(dbglvl, "leave dir_ask_sysop_to_mount_volume\n");
return true;
}
/*********************************************************************
* Acquire device for reading.
* The drive should have previously been reserved by calling
* reserve_device_for_read(). We read the Volume label from the block and
* leave the block pointers just after the label.
*
* Returns: NULL if failed for any reason
* dcr if successful
*/
bool acquire_device_for_read(DCR *dcr)
{
DEVICE *dev;
JCR *jcr = dcr->jcr;
bool ok = false;
bool tape_previously_mounted;
VOL_LIST *vol;
bool try_autochanger = true;
int i;
int vol_label_status;
int retry = 0;
Enter(rdbglvl);
dev = dcr->dev;
dev->Lock_read_acquire();
Dmsg2(rdbglvl, "dcr=%p dev=%p\n", dcr, dcr->dev);
Dmsg2(rdbglvl, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
dev->dblock(BST_DOING_ACQUIRE);
if (dev->num_writers > 0) {
Jmsg2(jcr, M_FATAL, 0, _("Acquire read: num_writers=%d not zero. Job %d canceled.\n"),
dev->num_writers, jcr->JobId);
goto get_out;
}
/* Find next Volume, if any */
vol = jcr->VolList;
if (!vol) {
char ed1[50];
Jmsg(jcr, M_FATAL, 0, _("No volumes specified for reading. Job %s canceled.\n"),
edit_int64(jcr->JobId, ed1));
goto get_out;
}
jcr->CurReadVolume++;
for (i=1; i<jcr->CurReadVolume; i++) {
vol = vol->next;
}
if (!vol) {
Jmsg(jcr, M_FATAL, 0, _("Logic error: no next volume to read. Numvol=%d Curvol=%d\n"),
jcr->NumReadVolumes, jcr->CurReadVolume);
goto get_out; /* should not happen */
}
set_dcr_from_vol(dcr, vol);
Dmsg2(rdbglvl, "Want Vol=%s Slot=%d\n", vol->VolumeName, vol->Slot);
/*
* If the MediaType requested for this volume is not the
* same as the current drive, we attempt to find the same
* device that was used to write the orginal volume. If
* found, we switch to using that device.
*
* N.B. A lot of routines rely on the dcr pointer not changing
* read_records.c even has multiple dcrs cached, so we take care
* here to release all important parts of the dcr and re-acquire
* them such as the block pointer (size may change), but we do
* not release the dcr.
*/
Dmsg2(rdbglvl, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
if (dcr->media_type[0] && !bstrcmp(dcr->media_type, dev->device->media_type)) {
RCTX rctx;
DIRSTORE *store;
int status;
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(rdbglvl, "Changing read device. Want Media Type=\"%s\" have=\"%s\"\n"
" device=%s\n",
dcr->media_type, dev->device->media_type, dev->print_name());
dev->dunblock(DEV_UNLOCKED);
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;
store = new DIRSTORE;
memset(store, 0, sizeof(DIRSTORE));
store->name[0] = 0; /* No dir name */
bstrncpy(store->media_type, vol->MediaType, sizeof(store->media_type));
bstrncpy(store->pool_name, dcr->pool_name, sizeof(store->pool_name));
bstrncpy(store->pool_type, dcr->pool_type, sizeof(store->pool_type));
store->append = false;
rctx.store = store;
clean_device(dcr); /* clean up the dcr */
/*
* Search for a new device
*/
status = search_res_for_device(rctx);
release_reserve_messages(jcr); /* release queued messages */
unlock_reservations();
if (status == 1) { /* found new device to use */
/*
* Switching devices, so acquire lock on new device,
* then release the old one.
*/
dcr->dev->Lock_read_acquire(); /* lock new one */
dev->Unlock_read_acquire(); /* release old one */
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 read 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));
dcr->setVolCatName(vol->VolumeName);
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 {
/* error */
Jmsg1(jcr, M_FATAL, 0, _("No suitable device found to read Volume \"%s\"\n"),
vol->VolumeName);
Dmsg1(rdbglvl, "No suitable device found to read Volume \"%s\"\n", vol->VolumeName);
goto get_out;
}
}
Dmsg2(rdbglvl, "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(rdbglvl, "swapping: slot=%d Vol=%s dev=%s\n", dev->vol->get_slot(),
dev->vol->vol_name, dev->print_name());
}
init_device_wait_timers(dcr);
tape_previously_mounted = dev->can_read() || dev->can_append() ||
dev->is_labeled();
// tape_initially_mounted = tape_previously_mounted;
/* Volume info is always needed because of VolParts */
Dmsg1(rdbglvl, "dir_get_volume_info vol=%s\n", dcr->VolumeName);
if (!dcr->dir_get_volume_info(GET_VOL_INFO_FOR_READ)) {
Dmsg2(rdbglvl, "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 */
if (!dev->poll && retry++ > 10) {
break;
}
dev->clear_labeled(); /* force reread of label */
if (job_canceled(jcr)) {
char ed1[50];
Mmsg1(dev->errmsg, _("Job %s canceled.\n"), edit_int64(jcr->JobId, ed1));
Jmsg(jcr, M_INFO, 0, dev->errmsg);
goto get_out; /* error return */
}
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
* reading. If it is a file, it opens it.
* If it is a tape, it checks the volume name
*/
Dmsg1(rdbglvl, "stored: open vol=%s\n", dcr->VolumeName);
if (!dev->open(dcr, OPEN_READ_ONLY)) {
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(rdbglvl, "opened dev %s OK\n", dev->print_name());
/* Read Volume Label */
Dmsg0(rdbglvl, "calling read-vol-label\n");
vol_label_status = read_dev_volume_label(dcr);
switch (vol_label_status) {
case VOL_OK:
Dmsg0(rdbglvl, "Got correct volume.\n");
ok = true;
dev->VolCatInfo = dcr->VolCatInfo; /* structure assignment */
break; /* got it */
case VOL_IO_ERROR:
Dmsg0(rdbglvl, "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, "Read acquire: %s", jcr->errmsg);
}
goto default_path;
case VOL_NAME_ERROR:
Dmsg3(rdbglvl, "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;
}
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(dcr);
free_volume(dev);
}
dev->set_load();
/* Fall through */
default:
Jmsg1(jcr, M_WARNING, 0, "Read acquire: %s", jcr->errmsg);
default_path:
Dmsg0(rdbglvl, "default path\n");
tape_previously_mounted = true;
/*
* If the device requires mount, close it, so the device can be ejected.
*/
if (dev->requires_mount()) {
dev->close(dcr);
free_volume(dev);
}
/* Call autochanger only once unless ask_sysop called */
if (try_autochanger) {
int status;
Dmsg2(rdbglvl, "calling autoload Vol=%s Slot=%d\n",
dcr->VolumeName, dcr->VolCatInfo.Slot);
status = autoload_device(dcr, 0, NULL);
if (status > 0) {
try_autochanger = false;
continue; /* try reading volume mounted */
}
}
/* Mount a specific volume and no other */
Dmsg0(rdbglvl, "calling dir_ask_sysop\n");
if (!dcr->dir_ask_sysop_to_mount_volume(ST_READREADY)) {
goto get_out; /* error return */
}
/* Volume info is always needed because of VolParts */
Dmsg1(150, "dir_get_volume_info vol=%s\n", dcr->VolumeName);
if (!dcr->dir_get_volume_info(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());
goto get_out;
}
dev->clear_append();
dev->set_read();
jcr->sendJobStatus(JS_Running);
Jmsg(jcr, M_INFO, 0, _("Ready to read from volume \"%s\" on device %s.\n"),
dcr->VolumeName, dev->print_name());
get_out:
dev->Lock();
dcr->clear_reserved();
/*
* Normally we are blocked, but in at least one error case above
* we are not blocked because we unsuccessfully tried changing
* devices.
*/
if (dev->is_blocked()) {
dev->dunblock(DEV_LOCKED);
} else {
dev->Unlock(); /* dunblock() unlock the device too */
}
Dmsg2(rdbglvl, "dcr=%p dev=%p\n", dcr, dcr->dev);
Dmsg2(rdbglvl, "MediaType dcr=%s dev=%s\n", dcr->media_type, dev->device->media_type);
dev->Unlock_read_acquire();
Leave(rdbglvl);
return ok;
}
/**
* Request the sysop to create an appendable volume
*
* Entered with device blocked.
* Leaves with device blocked.
*
* Returns: true on success (operator issues a mount command)
* false on failure
* Note, must create dev->errmsg on error return.
*
* On success, dcr->VolumeName and dcr->VolCatInfo contain
* information on suggested volume, but this may not be the
* same as what is actually mounted.
*
* When we return with success, the correct tape may or may not
* actually be mounted. The calling routine must read it and
* verify the label.
*/
bool dir_ask_sysop_to_create_appendable_volume(DCR *dcr)
{
int status = W_TIMEOUT;
DEVICE *dev = dcr->dev;
JCR *jcr = dcr->jcr;
bool got_vol = false;
if (job_canceled(jcr)) {
return false;
}
Dmsg0(dbglvl, "enter dir_ask_sysop_to_create_appendable_volume\n");
ASSERT(dev->blocked());
for ( ;; ) {
if (job_canceled(jcr)) {
Mmsg(dev->errmsg,
_("Job %s canceled while waiting for mount on Storage Device \"%s\".\n"),
jcr->Job, dev->print_name());
Jmsg(jcr, M_INFO, 0, "%s", dev->errmsg);
return false;
}
got_vol = dir_find_next_appendable_volume(dcr); /* get suggested volume */
if (got_vol) {
goto get_out;
} else {
if (status == W_TIMEOUT || status == W_MOUNT) {
Mmsg(dev->errmsg, _(
"Job %s is waiting. Cannot find any appendable volumes.\n"
"Please use the \"label\" command to create a new Volume for:\n"
" Storage: %s\n"
" Pool: %s\n"
" Media type: %s\n"),
jcr->Job,
dev->print_name(),
dcr->pool_name,
dcr->media_type);
Jmsg(jcr, M_MOUNT, 0, "%s", dev->errmsg);
Dmsg1(dbglvl, "%s", dev->errmsg);
}
}
jcr->sendJobStatus(JS_WaitMedia);
status = wait_for_sysop(dcr);
Dmsg1(dbglvl, "Back from wait_for_sysop status=%d\n", status);
if (dev->poll) {
Dmsg1(dbglvl, "Poll timeout in create append vol on device %s\n", dev->print_name());
continue;
}
if (status == W_TIMEOUT) {
if (!double_dev_wait_time(dev)) {
Mmsg(dev->errmsg, _("Max time exceeded waiting to mount Storage Device %s for Job %s\n"),
dev->print_name(), jcr->Job);
Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
Dmsg1(dbglvl, "Gave up waiting on device %s\n", dev->print_name());
return false; /* exceeded maximum waits */
}
continue;
}
if (status == W_ERROR) {
berrno be;
Mmsg0(dev->errmsg, _("pthread error in mount_next_volume.\n"));
Jmsg(jcr, M_FATAL, 0, "%s", dev->errmsg);
return false;
}
Dmsg1(dbglvl, "Someone woke me for device %s\n", dev->print_name());
}
get_out:
jcr->sendJobStatus(JS_Running);
Dmsg0(dbglvl, "leave dir_ask_sysop_to_mount_create_appendable_volume\n");
return true;
}
/*
* NB! This routine locks the device, but if committing will
* not unlock it. If not committing, it will be unlocked.
*/
static bool despool_data(DCR *dcr, bool commit)
{
DEVICE *rdev;
DCR *rdcr;
bool ok = true;
DEV_BLOCK *block;
JCR *jcr = dcr->jcr;
int status;
char ec1[50];
BSOCK *dir = jcr->dir_bsock;
Dmsg0(100, "Despooling data\n");
if (jcr->dcr->job_spool_size == 0) {
Jmsg(jcr, M_WARNING, 0, _("Despooling zero bytes. Your disk is probably FULL!\n"));
}
/*
* Commit means that the job is done, so we commit, otherwise, we
* are despooling because of user spool size max or some error
* (e.g. filesystem full).
*/
if (commit) {
Jmsg(jcr, M_INFO, 0, _("Committing spooled data to Volume \"%s\". Despooling %s bytes ...\n"),
jcr->dcr->VolumeName,
edit_uint64_with_commas(jcr->dcr->job_spool_size, ec1));
jcr->setJobStatus(JS_DataCommitting);
} else {
Jmsg(jcr, M_INFO, 0, _("Writing spooled data to Volume. Despooling %s bytes ...\n"),
edit_uint64_with_commas(jcr->dcr->job_spool_size, ec1));
jcr->setJobStatus(JS_DataDespooling);
}
jcr->sendJobStatus(JS_DataDespooling);
dcr->despool_wait = true;
dcr->spooling = false;
/*
* We work with device blocked, but not locked so that other threads
* e.g. reservations can lock the device structure.
*/
dcr->dblock(BST_DESPOOLING);
dcr->despool_wait = false;
dcr->despooling = true;
/*
* This is really quite kludgy and should be fixed some time.
* We create a dev structure to read from the spool file
* in rdev and rdcr.
*/
rdev = (DEVICE *)malloc(sizeof(DEVICE));
memset(rdev, 0, sizeof(DEVICE));
rdev->dev_name = get_memory(strlen(spool_name)+1);
bstrncpy(rdev->dev_name, spool_name, sizeof_pool_memory(rdev->dev_name));
rdev->errmsg = get_pool_memory(PM_EMSG);
*rdev->errmsg = 0;
rdev->max_block_size = dcr->dev->max_block_size;
rdev->min_block_size = dcr->dev->min_block_size;
rdev->device = dcr->dev->device;
rdcr = dcr->get_new_spooling_dcr();
setup_new_dcr_device(jcr, rdcr, rdev, NULL);
rdcr->spool_fd = dcr->spool_fd;
block = dcr->block; /* save block */
dcr->block = rdcr->block; /* make read and write block the same */
Dmsg1(800, "read/write block size = %d\n", block->buf_len);
lseek(rdcr->spool_fd, 0, SEEK_SET); /* rewind */
#if defined(HAVE_POSIX_FADVISE) && defined(POSIX_FADV_WILLNEED)
posix_fadvise(rdcr->spool_fd, 0, 0, POSIX_FADV_WILLNEED);
#endif
/* Add run time, to get current wait time */
int32_t despool_start = time(NULL) - jcr->run_time;
set_new_file_parameters(dcr);
while (ok) {
if (job_canceled(jcr)) {
ok = false;
break;
}
status = read_block_from_spool_file(rdcr);
if (status == RB_EOT) {
break;
} else if (status == RB_ERROR) {
ok = false;
break;
}
ok = dcr->write_block_to_device();
if (!ok) {
Jmsg2(jcr, M_FATAL, 0, _("Fatal append error on device %s: ERR=%s\n"),
dcr->dev->print_name(), dcr->dev->bstrerror());
Dmsg2(000, "Fatal append error on device %s: ERR=%s\n",
dcr->dev->print_name(), dcr->dev->bstrerror());
/* Force in case Incomplete set */
jcr->forceJobStatus(JS_FatalError);
}
Dmsg3(800, "Write block ok=%d FI=%d LI=%d\n", ok, block->FirstIndex, block->LastIndex);
}
/*
* If this Job is incomplete, we need to backup the FileIndex
* to the last correctly saved file so that the JobMedia
* LastIndex is correct.
*/
if (jcr->is_JobStatus(JS_Incomplete)) {
dcr->VolLastIndex = dir->get_FileIndex();
Dmsg1(100, "======= Set FI=%ld\n", dir->get_FileIndex());
}
if (!dcr->dir_create_jobmedia_record(false)) {
Jmsg2(jcr, M_FATAL, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
dcr->getVolCatName(), jcr->Job);
jcr->forceJobStatus(JS_FatalError); /* override any Incomplete */
}
/* Set new file/block parameters for current dcr */
set_new_file_parameters(dcr);
/*
* Subtracting run_time give us elapsed time - wait_time since
* we started despooling. Note, don't use time_t as it is 32 or 64
* bits depending on the OS and doesn't edit with %d
*/
int32_t despool_elapsed = time(NULL) - despool_start - jcr->run_time;
if (despool_elapsed <= 0) {
despool_elapsed = 1;
}
Jmsg(jcr, M_INFO, 0, _("Despooling elapsed time = %02d:%02d:%02d, Transfer rate = %s Bytes/second\n"),
despool_elapsed / 3600, despool_elapsed % 3600 / 60, despool_elapsed % 60,
edit_uint64_with_suffix(jcr->dcr->job_spool_size / despool_elapsed, ec1));
dcr->block = block; /* reset block */
lseek(rdcr->spool_fd, 0, SEEK_SET); /* rewind */
if (ftruncate(rdcr->spool_fd, 0) != 0) {
berrno be;
Jmsg(jcr, M_ERROR, 0, _("Ftruncate spool file failed: ERR=%s\n"), be.bstrerror());
/* Note, try continuing despite ftruncate problem */
}
P(mutex);
if (spool_stats.data_size < dcr->job_spool_size) {
spool_stats.data_size = 0;
} else {
spool_stats.data_size -= dcr->job_spool_size;
}
V(mutex);
P(dcr->dev->spool_mutex);
dcr->dev->spool_size -= dcr->job_spool_size;
dcr->job_spool_size = 0; /* zap size in input dcr */
V(dcr->dev->spool_mutex);
free_memory(rdev->dev_name);
free_pool_memory(rdev->errmsg);
/* Be careful to NULL the jcr and free rdev after free_dcr() */
rdcr->jcr = NULL;
rdcr->set_dev(NULL);
free_dcr(rdcr);
free(rdev);
dcr->spooling = true; /* turn on spooling again */
dcr->despooling = false;
/*
* Note, if committing we leave the device blocked. It will be removed in
* release_device();
*/
if (!commit) {
dcr->dev->dunblock();
}
jcr->sendJobStatus(JS_Running);
return ok;
}
