* Version $Id$
*/
/*
- Copyright (C) 2000-2003 Kern Sibbald and John Walker
+ Copyright (C) 2000-2004 Kern Sibbald and John Walker
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
* medium condition or worse, and error condition.
* 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.
+ * dev->VolCatInfo contains the info on the tape in the drive.
+ * 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.
+ *
* We enter with device locked, and
* exit with device locked.
*
*/
int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block)
{
- uint32_t stat = 0;
+ uint32_t stat;
char PrevVolName[MAX_NAME_LENGTH];
- DEV_BLOCK *label_blk = NULL;
+ DEV_BLOCK *label_blk;
char b1[30], b2[30];
time_t wait_time;
+ char dt[MAX_TIME_LENGTH];
wait_time = time(NULL);
- status_dev(dev, &stat);
- if (stat & MT_EOD) {
- Dmsg0(100, "======= Got EOD ========\n");
+ stat = status_dev(dev);
+ if (!(stat & BMT_EOD)) {
+ return 0; /* this really shouldn't happen */
+ }
- block_device(dev, BST_DOING_ACQUIRE);
- /* Unlock, but leave BLOCKED */
- unlock_device(dev);
+ Dmsg0(100, "======= Got EOD ========\n");
- /*
- * Walk through all attached jcrs creating a jobmedia_record()
- */
- Dmsg1(100, "Walk attached jcrs. Volume=%s\n", dev->VolCatInfo.VolCatName);
- for (JCR *mjcr=NULL; (mjcr=next_attached_jcr(dev, mjcr)); ) {
- Dmsg1(100, "create JobMedia for Job %s\n", mjcr->Job);
- if (dev->state & ST_TAPE) {
- mjcr->EndBlock = dev->EndBlock;
- mjcr->EndFile = dev->EndFile;
- Dmsg2(200, "Fixup EndFile=%u EndBlock=%u\n", mjcr->EndFile, mjcr->EndBlock);
- } else {
- mjcr->EndBlock = (uint32_t)dev->file_addr;
- mjcr->EndFile = (uint32_t)(dev->file_addr >> 32);
- }
- if (!dir_create_jobmedia_record(mjcr)) {
- Jmsg(mjcr, M_ERROR, 0, _("Could not create JobMedia record for Volume=%s Job=%s\n"),
- dev->VolCatInfo.VolCatName, mjcr->Job);
- P(dev->mutex);
- unblock_device(dev);
- return 0;
- }
- }
+ block_device(dev, BST_DOING_ACQUIRE);
+ /* Unlock, but leave BLOCKED */
+ unlock_device(dev);
- strcpy(dev->VolCatInfo.VolCatStatus, "Full");
- Dmsg2(200, "Call update_vol_info Stat=%s Vol=%s\n",
- dev->VolCatInfo.VolCatStatus, dev->VolCatInfo.VolCatName);
- if (!dir_update_volume_info(jcr, &dev->VolCatInfo, 0)) { /* send Volume info to Director */
- P(dev->mutex);
- unblock_device(dev);
- return 0; /* device locked */
- }
- Dmsg0(100, "Back from update_vol_info\n");
+ /* Create a jobmedia record for this job */
+ if (!dir_create_jobmedia_record(jcr)) {
+ 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 0;
+ }
- strcpy(PrevVolName, dev->VolCatInfo.VolCatName);
- strcpy(dev->VolHdr.PrevVolName, PrevVolName);
+ 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(jcr, dev, 0)) { /* send Volume info to Director */
+ P(dev->mutex);
+ unblock_device(dev);
+ return 0; /* device locked */
+ }
+ Dmsg0(100, "Back from update_vol_info\n");
- label_blk = new_block(dev);
+ bstrncpy(PrevVolName, dev->VolCatInfo.VolCatName, sizeof(PrevVolName));
+ bstrncpy(dev->VolHdr.PrevVolName, PrevVolName, sizeof(dev->VolHdr.PrevVolName));
- /* Inform User about end of media */
- Jmsg(jcr, M_INFO, 0, _("End of media on Volume %s Bytes=%s Blocks=%s.\n"),
- PrevVolName, edit_uint64_with_commas(dev->VolCatInfo.VolCatBytes, b1),
- edit_uint64_with_commas(dev->VolCatInfo.VolCatBlocks, b2));
+ label_blk = new_block(dev);
- if (!mount_next_write_volume(jcr, dev, label_blk, 1)) {
- P(dev->mutex);
- unblock_device(dev);
- return 0; /* device locked */
+ /* 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)));
+
+ if (!mount_next_write_volume(jcr, dev, label_blk, 1)) {
+ free_block(label_blk);
+ P(dev->mutex);
+ unblock_device(dev);
+ return 0; /* device locked */
+ }
+ 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)));
+
+ /*
+ * 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(jcr, dev, label_blk)) {
+ Pmsg1(0, "write_block_to_device Volume label failed. ERR=%s",
+ strerror_dev(dev));
+ free_block(label_blk);
+ unblock_device(dev);
+ return 0; /* device locked */
+ }
+ free_block(label_blk);
+
+ /*
+ * 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)); ) {
+ if (mjcr->JobId == 0) {
+ continue; /* ignore console */
}
- P(dev->mutex); /* lock again */
-
- Jmsg(jcr, M_INFO, 0, _("New volume %s mounted on device %s\n"),
- jcr->VolumeName, dev_name(dev));
-
- /*
- * 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(jcr, dev, label_blk)) {
- Pmsg1(0, "write_block_to_device Volume label failed. ERR=%s",
- strerror_dev(dev));
- free_block(label_blk);
- unblock_device(dev);
- return 0; /* device locked */
+ mjcr->dcr->NewVol = true;
+ if (jcr != mjcr) {
+ pm_strcpy(&mjcr->VolumeName, jcr->VolumeName); /* get a copy of the new volume */
+ bstrncpy(mjcr->dcr->VolumeName, jcr->VolumeName, sizeof(mjcr->dcr->VolumeName));
}
+ }
- /* Write overflow block to tape */
- Dmsg0(190, "Write overflow block to dev\n");
- if (!write_block_to_dev(jcr, dev, block)) {
- Pmsg1(0, "write_block_to_device overflow block failed. ERR=%s",
- strerror_dev(dev));
- free_block(label_blk);
- unblock_device(dev);
- return 0; /* device locked */
- }
+ /* Clear NewVol now because dir_get_volume_info() already done */
+ jcr->dcr->NewVol = false;
+ set_new_volume_parameters(jcr, dev);
- jcr->NumVolumes++;
- Dmsg0(190, "Wake up any waiting threads.\n");
- free_block(label_blk);
- for (JCR *mjcr=NULL; (mjcr=next_attached_jcr(dev, mjcr)); ) {
- /* Set new start/end positions */
- if (dev->state & ST_TAPE) {
- mjcr->StartBlock = dev->block_num;
- mjcr->StartFile = dev->file;
- } else {
- mjcr->StartBlock = (uint32_t)dev->file_addr;
- mjcr->StartFile = (uint32_t)(dev->file_addr >> 32);
- }
- mjcr->VolFirstFile = mjcr->JobFiles;
- mjcr->run_time += time(NULL) - wait_time; /* correct run time */
- }
+ jcr->run_time += time(NULL) - wait_time; /* correct run time for mount wait */
+
+ /* Write overflow block to device */
+ Dmsg0(190, "Write overflow block to dev\n");
+ if (!write_block_to_dev(jcr, dev, block)) {
+ Pmsg1(0, "write_block_to_device overflow block failed. ERR=%s",
+ strerror_dev(dev));
unblock_device(dev);
- return 1; /* device locked */
+ return 0; /* device locked */
}
- if (label_blk) {
- free_block(label_blk);
+
+ unblock_device(dev);
+ return 1; /* device locked */
+}
+
+/*
+ * We have a new Volume mounted, so reset the Volume parameters
+ * concerning this job. The global changes were made earlier
+ * in the dev structure.
+ */
+void set_new_volume_parameters(JCR *jcr, DEVICE *dev)
+{
+ DCR *dcr = jcr->dcr;
+ if (dcr->NewVol && !dir_get_volume_info(jcr, GET_VOL_INFO_FOR_WRITE)) {
+ Jmsg1(jcr, M_ERROR, 0, "%s", jcr->errmsg);
}
- return 0; /* device locked */
+ /* Set new start/end positions */
+ if (dev_state(dev, ST_TAPE)) {
+ dcr->StartBlock = dev->block_num;
+ dcr->StartFile = dev->file;
+ } else {
+ dcr->StartBlock = (uint32_t)dev->file_addr;
+ dcr->StartFile = (uint32_t)(dev->file_addr >> 32);
+ }
+ /* Reset indicies */
+ dcr->VolFirstIndex = 0;
+ dcr->VolLastIndex = 0;
+ jcr->NumVolumes++;
+ dcr->NewVol = false;
+ dcr->WroteVol = false;
+}
+
+/*
+ * We are now in a new Volume file, so reset the Volume parameters
+ * concerning this job. The global changes were made earlier
+ * in the dev structure.
+ */
+void set_new_file_parameters(JCR *jcr, DEVICE *dev)
+{
+ DCR *dcr = jcr->dcr;
+
+ /* Set new start/end positions */
+ if (dev_state(dev, ST_TAPE)) {
+ dcr->StartBlock = dev->block_num;
+ dcr->StartFile = dev->file;
+ } else {
+ dcr->StartBlock = (uint32_t)dev->file_addr;
+ dcr->StartFile = (uint32_t)(dev->file_addr >> 32);
+ }
+ /* Reset indicies */
+ dcr->VolFirstIndex = 0;
+ dcr->VolLastIndex = 0;
+ dcr->NewFile = false;
+ dcr->WroteVol = false;
}
+
/*
- * Open 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
* and always_open is set, and in the stand-alone utility
* Retuns: 0 on failure
* 1 on success
*/
-int open_device(DEVICE *dev)
+int first_open_device(DEVICE *dev)
{
Dmsg0(120, "start open_output_device()\n");
if (!dev) {
}
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, READ_WRITE) < 0) {
+ if (open_dev(dev, NULL, mode) < 0) {
Emsg1(M_FATAL, 0, _("dev open failed: %s\n"), dev->errmsg);
unlock_device(dev);
return 0;
return 1;
}
+/*
+ * Make sure device is open, if not do so
+ */
+int open_device(JCR *jcr, DEVICE *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;
+ }
+ }
+ return 1;
+}
+
/*
* 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
}
}
+/*
+ * Check if the device is blocked or not
+ */
+int device_is_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);
+ return stat;
+}
+
void _unlock_device(char *file, int line, DEVICE *dev)
{
Dmsg2(100, "unlock from %s:%d\n", file, line);
Dmsg3(100, "unblock %d from %s:%d\n", dev->dev_blocked, file, line);
ASSERT(dev->dev_blocked);
dev->dev_blocked = BST_NOT_BLOCKED;
+ dev->no_wait_id = 0;
if (dev->num_waiting > 0) {
pthread_cond_broadcast(&dev->wait); /* wake them up */
}
}
+/*
+ * Enter with device locked and blocked
+ * Exit with device unlocked and blocked by us.
+ */
void _steal_device_lock(char *file, int line, DEVICE *dev, bsteal_lock_t *hold, int state)
{
Dmsg4(100, "steal lock. old=%d new=%d from %s:%d\n", dev->dev_blocked, state,
file, line);
hold->dev_blocked = dev->dev_blocked;
+ hold->dev_prev_blocked = dev->dev_prev_blocked;
hold->no_wait_id = dev->no_wait_id;
dev->dev_blocked = state;
dev->no_wait_id = pthread_self();
V(dev->mutex);
}
-void _return_device_lock(char *file, int line, DEVICE *dev, bsteal_lock_t *hold)
+/*
+ * Enter with device blocked by us but not locked
+ * Exit with device locked, and blocked by previous owner
+ */
+void _give_back_device_lock(char *file, int line, DEVICE *dev, bsteal_lock_t *hold)
{
Dmsg4(100, "return lock. old=%d new=%d from %s:%d\n",
dev->dev_blocked, hold->dev_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;
}
-
-
-
-/* ==================================================================
- * New device locking code. It is not currently used.
- * ==================================================================
- */
-
-/*
- * New device locking scheme
- */
-void _new_lock_device(char *file, int line, DEVICE *dev)
-{
-#ifdef NEW_LOCK
- int errstat;
- if ((errstat=rwl_writelock(&dev->lock)) != 0) {
- e_msg(file, line, M_ABORT, 0, "rwl_writelock failure. ERR=%s\n",
- strerror(errstat));
- }
-#endif
-}
-
-void _new_lock_device(char *file, int line, DEVICE *dev, int state)
-{
-#ifdef NEW_LOCK
- int errstat;
- if ((errstat=rwl_writelock(&dev->lock)) != 0) {
- e_msg(file, line, M_ABORT, 0, "rwl_writelock failure. ERR=%s\n",
- strerror(errstat));
- }
- dev->dev_blocked = state;
-#endif
-}
-
-void _new_unlock_device(char *file, int line, DEVICE *dev)
-{
-#ifdef NEW_LOCK
- int errstat;
- if (dev->lock.w_active == 1) {
- dev->dev_blocked = BST_NOT_BLOCKED;
- }
- if ((errstat=rwl_writeunlock(&dev->lock)) != 0) {
- e_msg(file, line, M_ABORT, 0, "rwl_writeunlock failure. ERR=%s\n",
- strerror(errstat));
- }
-#endif
-}
-
-void new_steal_device_lock(DEVICE *dev, brwsteal_t *hold, int state)
-{
-#ifdef NEW_LOCK
- hold->state = dev->dev_blocked;
- hold->writer_id = dev->lock.writer_id;
- dev->dev_blocked = state;
- dev->lock.writer_id = pthread_self();
- V(dev->lock.mutex);
-#endif
-}
-
-void new_return_device_lock(DEVICE *dev, brwsteal_t *hold)
-{
-#ifdef NEW_LOCK
- P(dev->lock.mutex);
- dev->dev_blocked = hold->state;
- dev->lock.writer_id = hold->writer_id;
-#endif
-}
projects / bacula / bacula / blobdiff