static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+DCR *new_dcr(JCR *jcr, DEVICE *dev)
+{
+ DCR *dcr = (DCR *)malloc(sizeof(DCR));
+ memset(dcr, 0, sizeof(DCR));
+ jcr->dcr = dcr;
+ dcr->jcr = jcr;
+ dcr->dev = dev;
+ dcr->block = new_block(dev);
+ dcr->record = new_record();
+ dcr->spool_fd = -1;
+ return dcr;
+}
+
+void free_dcr(DCR *dcr)
+{
+ if (dcr->block) {
+ free_block(dcr->block);
+ }
+ if (dcr->record) {
+ free_record(dcr->record);
+ }
+ dcr->jcr->dcr = NULL;
+ free(dcr);
+}
+
+
/*********************************************************************
* Acquire device for reading. We permit (for the moment)
* only one reader. We read the Volume label from the block and
* Returns: 0 if failed for any reason
* 1 if successful
*/
-int acquire_device_for_read(JCR *jcr, DEVICE *dev, DEV_BLOCK *block)
+DCR *acquire_device_for_read(JCR *jcr)
{
- int stat = 0;
- int tape_previously_mounted;
+ bool vol_ok = false;
+ bool tape_previously_mounted;
+ bool tape_initially_mounted;
VOL_LIST *vol;
int autochanger = 0;
int i;
-
+ DCR *dcr = jcr->dcr;
+ DEVICE *dev;
+
+ /* Called for each volume */
+ if (!dcr) {
+ dcr = new_dcr(jcr, jcr->device->dev);
+ }
+ dev = dcr->dev;
if (device_is_unmounted(dev)) {
- Jmsg(jcr, M_WARNING, 0, _("device is BLOCKED due to user unmount.\n"));
+ Jmsg(jcr, M_WARNING, 0, _("device %s is BLOCKED due to user unmount.\n"),
+ dev_name(dev));
}
lock_device(dev);
block_device(dev, BST_DOING_ACQUIRE);
unlock_device(dev);
- tape_previously_mounted = dev_state(dev, ST_READ) || dev_state(dev, ST_APPEND);
-
if (dev_state(dev, ST_READ) || dev->num_writers > 0) {
Jmsg2(jcr, M_FATAL, 0, _("Device %s is busy. Job %d canceled.\n"),
dev_name(dev), jcr->JobId);
goto get_out;
}
+ tape_previously_mounted = dev_state(dev, ST_READ) ||
+ dev_state(dev, ST_APPEND) ||
+ dev_state(dev, ST_LABEL);
+ tape_initially_mounted = tape_previously_mounted;
+
/* Find next Volume, if any */
vol = jcr->VolList;
if (!vol) {
vol = vol->next;
}
pm_strcpy(&jcr->VolumeName, vol->VolumeName);
+ bstrncpy(dcr->VolumeName, vol->VolumeName, sizeof(dcr->VolumeName));
for (i=0; i<5; i++) {
if (job_canceled(jcr)) {
*/
for ( ; !(dev->state & ST_OPENED); ) {
Dmsg1(120, "bstored: open vol=%s\n", jcr->VolumeName);
- if (open_dev(dev, jcr->VolumeName, READ_ONLY) < 0) {
+ if (open_dev(dev, dcr->VolumeName, READ_ONLY) < 0) {
Jmsg(jcr, M_FATAL, 0, _("Open device %s volume %s failed, ERR=%s\n"),
- dev_name(dev), jcr->VolumeName, strerror_dev(dev));
+ dev_name(dev), dcr->VolumeName, strerror_dev(dev));
goto get_out;
}
Dmsg1(129, "open_dev %s OK\n", dev_name(dev));
}
- dev->state &= ~ST_LABEL; /* force reread of label */
+ /****FIXME***** do not reread label if ioctl() says we are
+ * correctly possitioned. Possibly have way user can turn
+ * this optimization (to be implemented) off.
+ */
+ dcr->dev->state &= ~ST_LABEL; /* force reread of label */
Dmsg0(200, "calling read-vol-label\n");
- switch (read_dev_volume_label(jcr, dev, block)) {
+ switch (read_dev_volume_label(jcr, dev, dcr->block)) {
case VOL_OK:
- stat = 1;
+ vol_ok = true;
break; /* got it */
case VOL_IO_ERROR:
/*
Jmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg);
}
goto default_path;
+ case VOL_NAME_ERROR:
+ if (tape_initially_mounted) {
+ tape_initially_mounted = false;
+ goto default_path;
+ }
+ /* Fall through */
default:
Jmsg(jcr, M_WARNING, 0, "%s", jcr->errmsg);
default_path:
- tape_previously_mounted = 1;
+ tape_previously_mounted = true;
Dmsg0(200, "dir_get_volume_info\n");
if (!dir_get_volume_info(jcr, GET_VOL_INFO_FOR_READ)) {
Jmsg1(jcr, M_WARNING, 0, "%s", jcr->errmsg);
} /* end switch */
break;
} /* end for loop */
- if (stat == 0) {
+ if (!vol_ok) {
Jmsg1(jcr, M_FATAL, 0, _("Too many errors trying to mount device \"%s\".\n"),
dev_name(dev));
goto get_out;
}
- dev->state |= ST_READ;
+ dev->state &= ~ST_APPEND; /* clear any previous append mode */
+ dev->state |= ST_READ; /* set read mode */
attach_jcr_to_device(dev, jcr); /* attach jcr to device */
Jmsg(jcr, M_INFO, 0, _("Ready to read from volume \"%s\" on device %s.\n"),
jcr->VolumeName, dev_name(dev));
P(dev->mutex);
unblock_device(dev);
V(dev->mutex);
- return stat;
+ if (!vol_ok) {
+ free_dcr(dcr);
+ dcr = NULL;
+ }
+ return dcr;
}
/*
* multiple devices (for files), thus we have our own mutex
* on top of the device mutex.
*/
-DEVICE *acquire_device_for_append(JCR *jcr, DEVICE *dev, DEV_BLOCK *block)
+DCR *acquire_device_for_append(JCR *jcr)
{
int release = 0;
bool recycle = false;
bool do_mount = false;
- DEVICE *rtn_dev = NULL;
+ DCR *dcr;
+ DEVICE *dev = jcr->device->dev;
+ dcr = new_dcr(jcr, dev);
if (device_is_unmounted(dev)) {
- Jmsg(jcr, M_WARNING, 0, _("device is BLOCKED due to user unmount.\n"));
+ Jmsg(jcr, M_WARNING, 0, _("device %s is BLOCKED due to user unmount.\n"),
+ dev_name(dev));
}
lock_device(dev);
block_device(dev, BST_DOING_ACQUIRE);
* dir_find_next_appendable_volume
*/
pm_strcpy(&jcr->VolumeName, dev->VolHdr.VolName);
+ bstrncpy(dcr->VolumeName, dev->VolHdr.VolName, sizeof(dcr->VolumeName));
if (!dir_get_volume_info(jcr, GET_VOL_INFO_FOR_WRITE) &&
!(dir_find_next_appendable_volume(jcr) &&
strcmp(dev->VolHdr.VolName, jcr->VolumeName) == 0)) { /* wrong tape mounted */
recycle = strcmp(jcr->VolCatInfo.VolCatStatus, "Recycle") == 0;
if (recycle && dev->num_writers != 0) {
Jmsg(jcr, M_FATAL, 0, _("Cannot recycle volume \"%s\""
- " because it is in use by another job."));
+ " because it is in use by another job.\n"));
goto get_out;
}
}
}
if (do_mount || recycle) {
- if (!mount_next_write_volume(jcr, dev, block, release)) {
+ if (!mount_next_write_volume(jcr, dev, dcr->block, release)) {
if (!job_canceled(jcr)) {
/* Reduce "noise" -- don't print if job canceled */
- Jmsg(jcr, M_FATAL, 0, _("Could not ready device %s for append.\n"),
+ Jmsg(jcr, M_FATAL, 0, _("Could not ready device \"%s\" for append.\n"),
dev_name(dev));
}
goto get_out;
jcr->NumVolumes = 1;
}
attach_jcr_to_device(dev, jcr); /* attach jcr to device */
- rtn_dev = dev; /* return device */
+ goto ok_out;
/*
* If we jump here, it is an error return because
* rtn_dev will still be NULL
*/
get_out:
+ free_dcr(dcr);
+ dcr = NULL;
+ok_out:
P(dev->mutex);
unblock_device(dev);
V(dev->mutex);
V(mutex); /* unlock other threads */
- return rtn_dev;
+ return dcr;
}
/*
* the device remains open.
*
*/
-int release_device(JCR *jcr, DEVICE *dev)
+int release_device(JCR *jcr)
{
+ DEVICE *dev = jcr->dcr->dev;
lock_device(dev);
Dmsg1(100, "release_device device is %s\n", dev_is_tape(dev)?"tape":"disk");
if (dev_state(dev, ST_READ)) {
/******FIXME**** send read volume usage statistics to director */
} else if (dev->num_writers > 0) {
- ASSERT(dev_state(dev, ST_APPEND));
dev->num_writers--;
Dmsg1(100, "There are %d writers in release_device\n", dev->num_writers);
- if (dev->num_writers == 0) {
- /* If we are the only writer, write EOF after job */
- if (dev_state(dev, ST_LABEL)) {
- Dmsg0(100, "dir_create_jobmedia_record. Release\n");
- 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);
- }
- if (dev_can_write(dev)) {
- weof_dev(dev, 1);
- }
- dev->VolCatInfo.VolCatJobs++; /* increment number of jobs */
- /* Note! do volume update before close, which zaps VolCatInfo */
- Dmsg0(100, "dir_update_vol_info. Release0\n");
- dir_update_volume_info(jcr, dev, 0); /* send Volume info to Director */
- }
-
- if (!dev_is_tape(dev) || !dev_cap(dev, CAP_ALWAYSOPEN)) {
- offline_or_rewind_dev(dev);
- close_dev(dev);
- }
- } else if (dev_state(dev, ST_LABEL)) {
+ if (dev_state(dev, ST_LABEL)) {
Dmsg0(100, "dir_create_jobmedia_record. Release\n");
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);
+ jcr->VolCatInfo.VolCatName, jcr->Job);
+ }
+ /* If no more writers, write an EOF */
+ if (!dev->num_writers && dev_can_write(dev)) {
+ weof_dev(dev, 1);
}
- Dmsg0(100, "dir_update_vol_info. Release1\n");
+ dev->VolCatInfo.VolCatFiles = dev->file; /* set number of files */
dev->VolCatInfo.VolCatJobs++; /* increment number of jobs */
+ /* Note! do volume update before close, which zaps VolCatInfo */
+ Dmsg0(100, "dir_update_vol_info. Release0\n");
dir_update_volume_info(jcr, dev, 0); /* send Volume info to Director */
}
+
+ if (!dev->num_writers && (!dev_is_tape(dev) || !dev_cap(dev, CAP_ALWAYSOPEN))) {
+ offline_or_rewind_dev(dev);
+ close_dev(dev);
+ }
} else {
Jmsg2(jcr, M_ERROR, 0, _("BAD ERROR: release_device %s, Volume \"%s\" not in use.\n"),
dev_name(dev), NPRT(jcr->VolumeName));
}
detach_jcr_from_device(dev, jcr);
- if (dev->prev && !dev_state(dev, ST_READ) && dev->num_writers == 0) {
+ if (dev->prev && !dev_state(dev, ST_READ) && !dev->num_writers) {
P(mutex);
unlock_device(dev);
dev->prev->next = dev->next; /* dechain */
} else {
unlock_device(dev);
}
+ free_dcr(jcr->dcr);
+ jcr->dcr = NULL;
return 1;
}
projects / bacula / bacula / blobdiff