+/*
+ Bacula® - The Network Backup Solution
+
+ Copyright (C) 2000-2007 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.
+ This program is Free Software; you can redistribute it and/or
+ modify it under the terms of version two of the GNU General Public
+ License as published by the Free Software Foundation plus additions
+ that are listed in the file LICENSE.
+
+ 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+ Bacula® is a registered trademark of John Walker.
+ The licensor of Bacula is the Free Software Foundation Europe
+ (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+ Switzerland, email:ftf@fsfeurope.org.
+*/
/*
* Subroutines to handle waiting for operator intervention
* or waiting for a Device to be released
*
* Version $Id$
*/
-/*
- 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
- 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
- the file LICENSE for additional details.
-
- */
#include "bacula.h" /* pull in global headers */
#include "stored.h" /* pull in Storage Deamon headers */
/*
* Wait for SysOp to mount a tape on a specific device
*
- * Returns: status from pthread_cond_timedwait()
+ * Returns: W_ERROR, W_TIMEOUT, W_POLL, W_MOUNT, or W_WAKE
*/
int wait_for_sysop(DCR *dcr)
{
DEVICE *dev = dcr->dev;
JCR *jcr = dcr->jcr;
- P(dev->mutex);
+ dev->dlock();
Dmsg1(100, "Enter blocked=%s\n", dev->print_blocked());
unmounted = is_device_unmounted(dev);
if (!unmounted) {
Dmsg1(400, "blocked=%s\n", dev->print_blocked());
- dev->dev_prev_blocked = dev->dev_blocked;
+ dev->dev_prev_blocked = dev->blocked();
dev->set_blocked(BST_WAITING_FOR_SYSOP); /* indicate waiting for mount */
}
timeout.tv_nsec = tv.tv_usec * 1000;
timeout.tv_sec = tv.tv_sec + add_wait;
- Dmsg3(400, "I'm going to sleep on device %s. HB=%d wait=%d\n", dev->print_name(),
- (int)me->heartbeat_interval, dev->wait_sec);
+ Dmsg4(400, "I'm going to sleep on device %s. HB=%d wait=%d add_wait=%d\n",
+ dev->print_name(), (int)me->heartbeat_interval, dev->wait_sec, add_wait);
start = time(NULL);
/* Wait required time */
- stat = pthread_cond_timedwait(&dev->wait_next_vol, &dev->mutex, &timeout);
+ stat = pthread_cond_timedwait(&dev->wait_next_vol, &dev->m_mutex, &timeout);
Dmsg2(400, "Wokeup from sleep on device stat=%d blocked=%s\n", stat,
dev->print_blocked());
}
}
- /*
- * Check if user unmounted the device while we were waiting
- */
- unmounted = is_device_unmounted(dev);
-
- if (stat != ETIMEDOUT) { /* we blocked the device */
- break; /* on error return */
+ if (stat == EINVAL) {
+ berrno be;
+ Jmsg1(jcr, M_FATAL, 0, _("pthread timedwait error. ERR=%s\n"), be.bstrerror(stat));
+ stat = W_ERROR; /* error */
+ break;
}
+
+
if (dev->rem_wait_sec <= 0) { /* on exceeding wait time return */
Dmsg0(400, "Exceed wait time.\n");
+ stat = W_TIMEOUT;
break;
}
+ /*
+ * Check if user unmounted the device while we were waiting
+ */
+ unmounted = is_device_unmounted(dev);
+
if (!unmounted && dev->vol_poll_interval &&
(now - first_start >= dev->vol_poll_interval)) {
Dmsg1(400, "In wait blocked=%s\n", dev->print_blocked());
dev->poll = true; /* returning a poll event */
+ stat = W_POLL;
break;
}
/*
* Check if user mounted the device while we were waiting
*/
- if (dev->get_blocked() == BST_MOUNT) { /* mount request ? */
- stat = 0;
+ if (dev->blocked() == BST_MOUNT) { /* mount request ? */
+ stat = W_MOUNT;
break;
}
+ /*
+ * If we did not timeout, then some event happened, so
+ * return to check if state changed.
+ */
+ if (stat != 0) {
+ stat = W_WAKE; /* someone woke us */
+ break;
+ }
+
+ /*
+ * At this point, we know we woke up because of a timeout,
+ * that was due to a heartbeat, so we just update
+ * the wait counters and continue.
+ */
add_wait = dev->wait_sec - (now - start);
if (add_wait < 0) {
add_wait = 0;
Dmsg1(400, "set %s\n", dev->print_blocked());
}
Dmsg1(400, "Exit blocked=%s\n", dev->print_blocked());
- V(dev->mutex);
+ dev->dunlock();
return stat;
}
/*
* Wait for any device to be released, then we return, so
- * higher level code can rescan possible devices.
+ * higher level code can rescan possible devices. Since there
+ * could be a job waiting for a drive to free up, we wait a maximum
+ * of 1 minute then retry just in case a broadcast was lost, and
+ * we return to rescan the devices.
*
* Returns: true if a device has changed state
* false if the total wait time has expired.
*/
-bool wait_for_device(JCR *jcr, bool first)
+bool wait_for_device(JCR *jcr, int &retries)
{
struct timeval tv;
struct timezone tz;
struct timespec timeout;
int stat = 0;
bool ok = true;
- const int wait_time = 10 * 60; /* wait 10 minutes */
+ const int max_wait_time = 1 * 60; /* wait 1 minute */
+ char ed1[50];
Dmsg0(100, "Enter wait_for_device\n");
P(device_release_mutex);
- if (first) {
- Jmsg(jcr, M_MOUNT, 0, _("Job %s waiting to reserve a device.\n"), jcr->Job);
+ if (++retries % 5 == 0) {
+ /* Print message every 5 minutes */
+ Jmsg(jcr, M_MOUNT, 0, _("JobId=%s, Job %s waiting to reserve a device.\n"),
+ edit_uint64(jcr->JobId, ed1), jcr->Job);
}
gettimeofday(&tv, &tz);
timeout.tv_nsec = tv.tv_usec * 1000;
- timeout.tv_sec = tv.tv_sec + wait_time;
+ timeout.tv_sec = tv.tv_sec + max_wait_time;
- Dmsg0(100, "I'm going to wait for a device.\n");
+ Dmsg1(100, "JobId=%u going to wait for a device.\n", (uint32_t)jcr->JobId);
/* Wait required time */
stat = pthread_cond_timedwait(&wait_device_release, &device_release_mutex, &timeout);
- Dmsg1(100, "Wokeup from sleep on device stat=%d\n", stat);
+ Dmsg2(100, "JobId=%u wokeup from sleep on device stat=%d\n", (uint32_t)jcr->JobId, stat);
V(device_release_mutex);
- Dmsg1(100, "Return from wait_device ok=%d\n", ok);
+ Dmsg2(100, "JobId=%u return from wait_device ok=%d\n", (uint32_t)jcr->JobId, ok);
return ok;
}
projects / bacula / bacula / blobdiff