/*
*
- * Higher Level Device routines.
- * Knows about Bacula tape labels and such
+ * Higher Level Device routines.
+ * Knows about Bacula tape labels and such
*
* NOTE! In general, subroutines that have the word
* "device" in the name do locking. Subroutines
* that have the word "dev" in the name do not
- * do locking. Thus if xxx_device() calls
- * yyy_dev(), all is OK, but if xxx_device()
- * calls yyy_device(), everything will hang.
- * Obviously, no zzz_dev() is allowed to call
- * a www_device() or everything falls apart.
+ * do locking. Thus if xxx_device() calls
+ * yyy_dev(), all is OK, but if xxx_device()
+ * calls yyy_device(), everything will hang.
+ * Obviously, no zzz_dev() is allowed to call
+ * a www_device() or everything falls apart.
*
* Concerning the routines lock_device() and block_device()
* see the end of this module for details. In general,
* blocking a device leaves it in a state where all threads
- * other than the current thread block when they attempt to
+ * other than the current thread block when they attempt to
* lock the device. They remain suspended (blocked) until the device
* is unblocked. So, a device is blocked during an operation
* that takes a long time (initialization, mounting a new
* volume, ...) locking a device is done for an operation
- * that takes a short time such as writing data to the
+ * that takes a short time such as writing data to the
* device.
*
*
* Kern Sibbald, MM, MMI
- *
+ *
* Version $Id$
*/
/*
- Copyright (C) 2000-2004 Kern Sibbald and John Walker
+ Copyright (C) 2000-2005 Kern Sibbald
This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
+ modify it under the terms of the GNU General Public License
+ version 2 as amended with additional clauses defined in the
+ file LICENSE in the main source directory.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public
- License along with this program; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ the file LICENSE for additional details.
*/
* Attempt to "recover" by obtaining a new Volume.
*
* Here are a few things to know:
- * jcr->VolCatInfo contains the info on the "current" tape for this job.
+ * dcr->VolCatInfo contains the info on the "current" tape for this job.
* dev->VolCatInfo contains the info on the tape in the drive.
- * The tape in the drive could have changed several times since
+ * The tape in the drive could have changed several times since
* the last time the job used it (jcr->VolCatInfo).
- * jcr->VolumeName is the name of the current/desired tape in the drive.
+ * dcr->VolumeName is the name of the current/desired tape in the drive.
*
- * We enter with device locked, and
+ * We enter with device locked, and
* exit with device locked.
*
* Note, we are called only from one place in block.c
*
* Returns: true on success
- * false on failure
+ * false on failure
*/
-bool fixup_device_block_write_error(DCR *dcr, DEV_BLOCK *block)
+bool fixup_device_block_write_error(DCR *dcr)
{
- uint32_t stat;
char PrevVolName[MAX_NAME_LENGTH];
DEV_BLOCK *label_blk;
+ DEV_BLOCK *block = dcr->block;
char b1[30], b2[30];
time_t wait_time;
char dt[MAX_TIME_LENGTH];
DEVICE *dev = dcr->dev;
wait_time = time(NULL);
- stat = status_dev(dev);
- if (!(stat & BMT_EOD)) {
- return false; /* this really shouldn't happen */
- }
- Dmsg0(100, "======= Got EOD ========\n");
+ Dmsg0(100, "Enter fixup_device_block_write_error\n");
block_device(dev, BST_DOING_ACQUIRE);
/* Unlock, but leave BLOCKED */
unlock_device(dev);
- /* Create a jobmedia record for this job */
- if (!dir_create_jobmedia_record(dcr)) {
- Jmsg(jcr, M_ERROR, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"),
- jcr->VolCatInfo.VolCatName, jcr->Job);
- P(dev->mutex);
- unblock_device(dev);
- return false;
- }
-
- bstrncpy(dev->VolCatInfo.VolCatStatus, "Full", sizeof(dev->VolCatInfo.VolCatStatus));
- Dmsg2(100, "Call update_vol_info Stat=%s Vol=%s\n",
- dev->VolCatInfo.VolCatStatus, dev->VolCatInfo.VolCatName);
- dev->VolCatInfo.VolCatFiles = dev->file; /* set number of files */
- dev->VolCatInfo.VolCatJobs++; /* increment number of jobs */
- if (!dir_update_volume_info(dcr, false)) { /* send Volume info to Director */
- P(dev->mutex);
- unblock_device(dev);
- return false; /* device locked */
- }
- Dmsg0(100, "Back from update_vol_info\n");
-
bstrncpy(PrevVolName, dev->VolCatInfo.VolCatName, sizeof(PrevVolName));
- bstrncpy(dev->VolHdr.PrevVolName, PrevVolName, sizeof(dev->VolHdr.PrevVolName));
+ bstrncpy(dev->VolHdr.PrevVolumeName, PrevVolName, sizeof(dev->VolHdr.PrevVolumeName));
label_blk = new_block(dev);
+ dcr->block = label_blk;
/* Inform User about end of medium */
- Jmsg(jcr, M_INFO, 0, _("End of medium on Volume \"%s\" Bytes=%s Blocks=%s at %s.\n"),
- PrevVolName, edit_uint64_with_commas(dev->VolCatInfo.VolCatBytes, b1),
- edit_uint64_with_commas(dev->VolCatInfo.VolCatBlocks, b2),
- bstrftime(dt, sizeof(dt), time(NULL)));
+ Jmsg(jcr, M_INFO, 0, _("End of medium on Volume \"%s\" Bytes=%s Blocks=%s at %s.\n"),
+ PrevVolName, edit_uint64_with_commas(dev->VolCatInfo.VolCatBytes, b1),
+ edit_uint64_with_commas(dev->VolCatInfo.VolCatBlocks, b2),
+ bstrftime(dt, sizeof(dt), time(NULL)));
- if (!mount_next_write_volume(dcr, label_blk, 1)) {
+ if (!mount_next_write_volume(dcr, 1)) {
free_block(label_blk);
+ dcr->block = block;
P(dev->mutex);
unblock_device(dev);
- return false; /* device locked */
+ return false; /* device locked */
}
- P(dev->mutex); /* lock again */
+ P(dev->mutex); /* lock again */
Jmsg(jcr, M_INFO, 0, _("New volume \"%s\" mounted on device %s at %s.\n"),
- jcr->VolumeName, dev_name(dev), bstrftime(dt, sizeof(dt), time(NULL)));
+ dcr->VolumeName, dev->print_name(), bstrftime(dt, sizeof(dt), time(NULL)));
- /*
+ /*
* If this is a new tape, the label_blk will contain the
* label, so write it now. If this is a previously
* used tape, mount_next_write_volume() will return an
* empty label_blk, and nothing will be written.
*/
Dmsg0(190, "write label block to dev\n");
- if (!write_block_to_dev(dcr, label_blk)) {
- Pmsg1(0, "write_block_to_device Volume label failed. ERR=%s",
- strerror_dev(dev));
+ if (!write_block_to_dev(dcr)) {
+ berrno be;
+ Pmsg1(0, _("write_block_to_device Volume label failed. ERR=%s"),
+ be.strerror(dev->dev_errno));
free_block(label_blk);
+ dcr->block = block;
unblock_device(dev);
- return false; /* device locked */
+ return false; /* device locked */
}
free_block(label_blk);
+ dcr->block = block;
- /*
- * Walk through all attached jcrs indicating the volume has changed
+ /*
+ * Walk through all attached jcrs indicating the volume has changed
*/
- Dmsg1(100, "Walk attached jcrs. Volume=%s\n", dev->VolCatInfo.VolCatName);
-// for (JCR *mjcr=NULL; (mjcr=next_attached_jcr(dev, mjcr)); ) {
+ Dmsg1(100, "Walk attached dcrs. Volume=%s\n", dev->VolCatInfo.VolCatName);
DCR *mdcr;
foreach_dlist(mdcr, dev->attached_dcrs) {
JCR *mjcr = mdcr->jcr;
if (mjcr->JobId == 0) {
- continue; /* ignore console */
+ continue; /* ignore console */
}
mdcr->NewVol = true;
if (jcr != mjcr) {
- pm_strcpy(&mjcr->VolumeName, jcr->VolumeName); /* get a copy of the new volume */
- bstrncpy(mdcr->VolumeName, jcr->VolumeName, sizeof(mdcr->VolumeName));
+ bstrncpy(mdcr->VolumeName, dcr->VolumeName, sizeof(mdcr->VolumeName));
}
}
/* Write overflow block to device */
Dmsg0(190, "Write overflow block to dev\n");
- if (!write_block_to_dev(dcr, block)) {
- Pmsg1(0, "write_block_to_device overflow block failed. ERR=%s",
- strerror_dev(dev));
+ if (!write_block_to_dev(dcr)) {
+ berrno be;
+ Pmsg1(0, _("write_block_to_device overflow block failed. ERR=%s"),
+ be.strerror(dev->dev_errno));
unblock_device(dev);
- return false; /* device locked */
+ return false; /* device locked */
}
unblock_device(dev);
- return true; /* device locked */
+ return true; /* device locked */
}
/*
Jmsg1(jcr, M_ERROR, 0, "%s", jcr->errmsg);
}
/* Set new start/end positions */
- if (dev_state(dev, ST_TAPE)) {
+ if (dev->is_tape()) {
dcr->StartBlock = dev->block_num;
dcr->StartFile = dev->file;
} else {
void set_new_file_parameters(DCR *dcr)
{
DEVICE *dev = dcr->dev;
-
+
/* Set new start/end positions */
- if (dev_state(dev, ST_TAPE)) {
+ if (dev->is_tape()) {
dcr->StartBlock = dev->block_num;
dcr->StartFile = dev->file;
} else {
/*
- * First Open of the device. Expect dev to already be initialized.
+ * First Open of the device. Expect dev to already be initialized.
*
- * This routine is used only when the Storage daemon starts
+ * This routine is used only when the Storage daemon starts
* and always_open is set, and in the stand-alone utility
* routines such as bextract.
*
* Note, opening of a normal file is deferred to later so
* that we can get the filename; the device_name for
- * a file is the directory only.
+ * a file is the directory only.
*
- * Retuns: 0 on failure
- * 1 on success
+ * Returns: false on failure
+ * true on success
*/
-int first_open_device(DEVICE *dev)
+bool first_open_device(DCR *dcr)
{
+ DEVICE *dev = dcr->dev;
+ bool ok = true;
+
Dmsg0(120, "start open_output_device()\n");
if (!dev) {
- return 0;
+ return false;
}
lock_device(dev);
/* Defer opening files */
- if (!dev_is_tape(dev)) {
+ if (!dev->is_tape()) {
Dmsg0(129, "Device is file, deferring open.\n");
- unlock_device(dev);
- return 1;
+ goto bail_out;
}
- if (!(dev->state & ST_OPENED)) {
- int mode;
- if (dev_cap(dev, CAP_STREAM)) {
- mode = OPEN_WRITE_ONLY;
- } else {
- mode = OPEN_READ_WRITE;
- }
- Dmsg0(129, "Opening device.\n");
- if (open_dev(dev, NULL, mode) < 0) {
- Emsg1(M_FATAL, 0, _("dev open failed: %s\n"), dev->errmsg);
- unlock_device(dev);
- return 0;
- }
+ int mode;
+ if (dev_cap(dev, CAP_STREAM)) {
+ mode = OPEN_WRITE_ONLY;
+ } else {
+ mode = OPEN_READ_ONLY;
+ }
+ Dmsg0(129, "Opening device.\n");
+ if (dev->open(dcr, mode) < 0) {
+ Emsg1(M_FATAL, 0, _("dev open failed: %s\n"), dev->errmsg);
+ ok = false;
+ goto bail_out;
}
- Dmsg1(129, "open_dev %s OK\n", dev_name(dev));
+ Dmsg1(129, "open dev %s OK\n", dev->print_name());
+bail_out:
unlock_device(dev);
- return 1;
+ return ok;
}
-/*
- * Make sure device is open, if not do so
+/*
+ * Make sure device is open, if not do so
*/
-int open_device(JCR *jcr, DEVICE *dev)
+bool open_device(DCR *dcr)
{
+ DEVICE *dev = dcr->dev;
/* Open device */
- if (!(dev_state(dev, ST_OPENED))) {
- int mode;
- if (dev_cap(dev, CAP_STREAM)) {
- mode = OPEN_WRITE_ONLY;
- } else {
- mode = OPEN_READ_WRITE;
- }
- if (open_dev(dev, jcr->VolCatInfo.VolCatName, mode) < 0) {
- Jmsg2(jcr, M_FATAL, 0, _("Unable to open device %s. ERR=%s\n"),
- dev_name(dev), strerror_dev(dev));
- return 0;
- }
+ int mode;
+ if (dev_cap(dev, CAP_STREAM)) {
+ mode = OPEN_WRITE_ONLY;
+ } else {
+ mode = OPEN_READ_WRITE;
+ }
+ if (dev->open(dcr, mode) < 0) {
+ /* If polling, ignore the error */
+ /* If DVD, also ignore the error, very often you cannot open the device
+ * (when there is no DVD, or when the one inserted is a wrong one) */
+ if ((!dev->poll) && (!dev->is_dvd())) {
+ Jmsg2(dcr->jcr, M_FATAL, 0, _("Unable to open device %s: ERR=%s\n"),
+ dev->print_name(), strerror_dev(dev));
+ Pmsg2(000, _("Unable to open archive %s: ERR=%s\n"),
+ dev->print_name(), strerror_dev(dev));
+ }
+ return false;
}
- return 1;
+ return true;
}
+/*
+ * Release any Volume attached to this device
+ * then close the device.
+ */
+void close_device(DEVICE *dev)
+{
+ free_volume(dev);
+ dev->close();
+}
+
+/*
+ */
+void force_close_device(DEVICE *dev)
+{
+ if (!dev || dev->fd < 0) {
+ return;
+ }
+ Dmsg1(29, "Force close_dev %s\n", dev->print_name());
+ free_volume(dev);
+ dev->close();
+}
+
+
void dev_lock(DEVICE *dev)
{
int errstat;
if ((errstat=rwl_writelock(&dev->lock))) {
- Emsg1(M_ABORT, 0, "Device write lock failure. ERR=%s\n", strerror(errstat));
+ Emsg1(M_ABORT, 0, _("Device write lock failure. ERR=%s\n"), strerror(errstat));
}
}
{
int errstat;
if ((errstat=rwl_writeunlock(&dev->lock))) {
- Emsg1(M_ABORT, 0, "Device write unlock failure. ERR=%s\n", strerror(errstat));
+ Emsg1(M_ABORT, 0, _("Device write unlock failure. ERR=%s\n"), strerror(errstat));
}
}
-/*
+/*
* When dev_blocked is set, all threads EXCEPT thread with id no_wait_id
* must wait. The no_wait_id thread is out obtaining a new volume
* and preparing the label.
Dmsg3(500, "lock %d from %s:%d\n", dev->dev_blocked, file, line);
P(dev->mutex);
if (dev->dev_blocked && !pthread_equal(dev->no_wait_id, pthread_self())) {
- dev->num_waiting++; /* indicate that I am waiting */
+ dev->num_waiting++; /* indicate that I am waiting */
while (dev->dev_blocked) {
- if ((stat = pthread_cond_wait(&dev->wait, &dev->mutex)) != 0) {
- V(dev->mutex);
+ if ((stat = pthread_cond_wait(&dev->wait, &dev->mutex)) != 0) {
+ V(dev->mutex);
Emsg1(M_ABORT, 0, _("pthread_cond_wait failure. ERR=%s\n"),
- strerror(stat));
- }
+ strerror(stat));
+ }
}
- dev->num_waiting--; /* no longer waiting */
+ dev->num_waiting--; /* no longer waiting */
}
}
/*
* Check if the device is blocked or not
*/
-int device_is_unmounted(DEVICE *dev)
+bool is_device_unmounted(DEVICE *dev)
{
- int stat;
- P(dev->mutex);
- stat = (dev->dev_blocked == BST_UNMOUNTED) ||
- (dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP);
- V(dev->mutex);
+ bool stat;
+ int blocked = dev->dev_blocked;
+ stat = (blocked == BST_UNMOUNTED) ||
+ (blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP);
return stat;
}
-void _unlock_device(const char *file, int line, DEVICE *dev)
+void _unlock_device(const char *file, int line, DEVICE *dev)
{
Dmsg2(500, "unlock from %s:%d\n", file, line);
V(dev->mutex);
}
-/*
+/*
* Block all other threads from using the device
* Device must already be locked. After this call,
* the device is blocked to any thread calling lock_device(),
void _block_device(const char *file, int line, DEVICE *dev, int state)
{
Dmsg3(500, "block set %d from %s:%d\n", state, file, line);
- ASSERT(dev->dev_blocked == BST_NOT_BLOCKED);
- dev->dev_blocked = state; /* make other threads wait */
+ ASSERT(dev->get_blocked() == BST_NOT_BLOCKED);
+ dev->set_blocked(state); /* make other threads wait */
dev->no_wait_id = pthread_self(); /* allow us to continue */
}
*/
void _unblock_device(const char *file, int line, DEVICE *dev)
{
- Dmsg3(500, "unblock %d from %s:%d\n", dev->dev_blocked, file, line);
+ Dmsg3(500, "unblock %s from %s:%d\n", dev->print_blocked(), file, line);
ASSERT(dev->dev_blocked);
- dev->dev_blocked = BST_NOT_BLOCKED;
+ dev->set_blocked(BST_NOT_BLOCKED);
dev->no_wait_id = 0;
if (dev->num_waiting > 0) {
pthread_cond_broadcast(&dev->wait); /* wake them up */
*/
void _steal_device_lock(const char *file, int line, DEVICE *dev, bsteal_lock_t *hold, int state)
{
- Dmsg4(500, "steal lock. old=%d new=%d from %s:%d\n", dev->dev_blocked, state,
+
+ Dmsg3(400, "steal lock. old=%s from %s:%d\n", dev->print_blocked(),
file, line);
- hold->dev_blocked = dev->dev_blocked;
+ hold->dev_blocked = dev->get_blocked();
hold->dev_prev_blocked = dev->dev_prev_blocked;
hold->no_wait_id = dev->no_wait_id;
- dev->dev_blocked = state;
+ dev->set_blocked(state);
+ Dmsg1(400, "steal lock. new=%s\n", dev->print_blocked());
dev->no_wait_id = pthread_self();
V(dev->mutex);
}
/*
* Enter with device blocked by us but not locked
- * Exit with device locked, and blocked by previous owner
+ * Exit with device locked, and blocked by previous owner
*/
-void _give_back_device_lock(const char *file, int line, DEVICE *dev, bsteal_lock_t *hold)
+void _give_back_device_lock(const char *file, int line, DEVICE *dev, bsteal_lock_t *hold)
{
- Dmsg4(500, "return lock. old=%d new=%d from %s:%d\n",
- dev->dev_blocked, hold->dev_blocked, file, line);
+ Dmsg3(400, "return lock. old=%s from %s:%d\n",
+ dev->print_blocked(), file, line);
P(dev->mutex);
dev->dev_blocked = hold->dev_blocked;
dev->dev_prev_blocked = hold->dev_prev_blocked;
dev->no_wait_id = hold->no_wait_id;
- if (dev->dev_blocked == BST_NOT_BLOCKED && dev->num_waiting > 0) {
+ Dmsg1(400, "return lock. new=%s\n", dev->print_blocked());
+ if (dev->num_waiting > 0) {
pthread_cond_broadcast(&dev->wait); /* wake them up */
}
}
projects / bacula / bacula / blobdiff