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.
*/
#include "bacula.h" /* pull in global headers */
#include "stored.h" /* pull in Storage Deamon headers */
-static bool double_jcr_wait_time(JCR *jcr);
+//static bool double_jcr_wait_time(JCR *jcr);
/*
* 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)
{
JCR *jcr = dcr->jcr;
P(dev->mutex);
- unmounted = (dev->dev_blocked == BST_UNMOUNTED) ||
- (dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP);
+ Dmsg1(100, "Enter blocked=%s\n", dev->print_blocked());
+ unmounted = is_device_unmounted(dev);
dev->poll = false;
/*
- * Wait requested time (dev->rem_wait_sec). However, we also wake up every
- * HB_TIME seconds and send a heartbeat to the FD and the Director
- * to keep stateful firewalls from closing them down while waiting
- * for the operator.
+ * Wait requested time (dev->rem_wait_sec). However, we also wake up every
+ * HB_TIME seconds and send a heartbeat to the FD and the Director
+ * to keep stateful firewalls from closing them down while waiting
+ * for the operator.
*/
add_wait = dev->rem_wait_sec;
if (me->heartbeat_interval && add_wait > me->heartbeat_interval) {
}
if (!unmounted) {
+ Dmsg1(400, "blocked=%s\n", dev->print_blocked());
dev->dev_prev_blocked = dev->dev_blocked;
- dev->dev_blocked = BST_WAITING_FOR_SYSOP; /* indicate waiting for mount */
+ dev->set_blocked(BST_WAITING_FOR_SYSOP); /* indicate waiting for mount */
}
for ( ; !job_canceled(jcr); ) {
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);
- Dmsg1(400, "Wokeup from sleep on device stat=%d\n", stat);
+ Dmsg2(400, "Wokeup from sleep on device stat=%d blocked=%s\n", stat,
+ dev->print_blocked());
now = time(NULL);
dev->rem_wait_sec -= (now - start);
/* Note, this always triggers the first time. We want that. */
if (me->heartbeat_interval) {
- if (now - last_heartbeat >= me->heartbeat_interval) {
- /* send heartbeats */
- if (jcr->file_bsock) {
- bnet_sig(jcr->file_bsock, BNET_HEARTBEAT);
+ if (now - last_heartbeat >= me->heartbeat_interval) {
+ /* send heartbeats */
+ if (jcr->file_bsock) {
+ bnet_sig(jcr->file_bsock, BNET_HEARTBEAT);
Dmsg0(400, "Send heartbeat to FD.\n");
- }
- if (jcr->dir_bsock) {
- bnet_sig(jcr->dir_bsock, BNET_HEARTBEAT);
- }
- last_heartbeat = now;
- }
+ }
+ if (jcr->dir_bsock) {
+ bnet_sig(jcr->dir_bsock, BNET_HEARTBEAT);
+ }
+ last_heartbeat = now;
+ }
}
- /*
- * Check if user unmounted the device while we were waiting
- */
- unmounted = (dev->dev_blocked == BST_UNMOUNTED) ||
- (dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP);
-
- if (stat != ETIMEDOUT) { /* we blocked the device */
- break; /* on error return */
+ if (stat == EINVAL) {
+ berrno be;
+ Dmsg1(000, "pthread stat=%d\n", stat);
+ Jmsg1(jcr, M_FATAL, 0, _("pthread timedwait error. ERR=%s\n"), be.strerror(stat));
+ stat = W_ERROR; /* error */
+ break;
}
+
+
if (dev->rem_wait_sec <= 0) { /* on exceeding wait time return */
Dmsg0(400, "Exceed wait time.\n");
- break;
+ 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", edit_blocked_reason(dev));
- dev->poll = true; /* returning a poll event */
- break;
+ (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->dev_blocked == BST_MOUNT) { /* mount request ? */
- stat = 0;
- break;
+ if (dev->get_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;
+ add_wait = 0;
}
if (me->heartbeat_interval && add_wait > me->heartbeat_interval) {
- add_wait = me->heartbeat_interval;
+ add_wait = me->heartbeat_interval;
}
}
if (!unmounted) {
- dev->dev_blocked = dev->dev_prev_blocked; /* restore entry state */
+ dev->set_blocked(dev->dev_prev_blocked); /* restore entry state */
+ Dmsg1(400, "set %s\n", dev->print_blocked());
}
+ Dmsg1(400, "Exit blocked=%s\n", dev->print_blocked());
V(dev->mutex);
return stat;
}
/*
- * Wait for Device to be released
- *
+ * Wait for any device to be released, then we return, so
+ * higher level code can rescan possible devices.
+ *
+ * Returns: true if a device has changed state
+ * false if the total wait time has expired.
*/
-bool wait_for_device(DCR *dcr, const char *msg, bool first)
+bool wait_for_device(JCR *jcr, bool first)
{
struct timeval tv;
struct timezone tz;
struct timespec timeout;
-// time_t last_heartbeat = 0;
int stat = 0;
- int add_wait;
- DEVICE *dev = dcr->dev;
- JCR *jcr = dcr->jcr;
- bool ok = false;
+ bool ok = true;
+ const int wait_time = 5 * 60; /* wait 5 minutes */
+ Dmsg0(100, "Enter wait_for_device\n");
P(device_release_mutex);
if (first) {
- Jmsg(jcr, M_MOUNT, 0, msg);
- }
-
- /*
- * Wait requested time (dev->rem_wait_sec). However, we also wake up every
- * HB_TIME seconds and send a heartbeat to the FD and the Director
- * to keep stateful firewalls from closing them down while waiting
- * for the operator.
- */
- add_wait = jcr->rem_wait_sec;
- if (me->heartbeat_interval && add_wait > me->heartbeat_interval) {
- add_wait = me->heartbeat_interval;
+ Jmsg(jcr, M_MOUNT, 0, _("Job %s waiting to reserve a device.\n"), jcr->Job);
}
- for ( ; !job_canceled(jcr); ) {
- time_t now, start;
+ gettimeofday(&tv, &tz);
+ timeout.tv_nsec = tv.tv_usec * 1000;
+ timeout.tv_sec = tv.tv_sec + wait_time;
- gettimeofday(&tv, &tz);
- timeout.tv_nsec = tv.tv_usec * 1000;
- timeout.tv_sec = tv.tv_sec + add_wait;
-
- Dmsg3(000, "I'm going to sleep on device %s. HB=%d wait=%d\n", dev->print_name(),
- (int)me->heartbeat_interval, dev->wait_sec);
- start = time(NULL);
- /* Wait required time */
- stat = pthread_cond_timedwait(&wait_device_release, &device_release_mutex, &timeout);
- Dmsg1(000, "Wokeup from sleep on device stat=%d\n", stat);
-
- now = time(NULL);
- jcr->rem_wait_sec -= (now - start);
-
-#ifdef needed
- /* Note, this always triggers the first time. We want that. */
- if (me->heartbeat_interval) {
- if (now - last_heartbeat >= me->heartbeat_interval) {
- /* send heartbeats */
- if (jcr->file_bsock) {
- bnet_sig(jcr->file_bsock, BNET_HEARTBEAT);
- Dmsg0(400, "Send heartbeat to FD.\n");
- }
- if (jcr->dir_bsock) {
- bnet_sig(jcr->dir_bsock, BNET_HEARTBEAT);
- }
- last_heartbeat = now;
- }
- }
-#endif
+ Dmsg0(100, "I'm going to wait for a device.\n");
- if (stat != ETIMEDOUT) { /* if someone woke us up */
- ok = true;
- break; /* allow caller to examine device */
- }
- if (jcr->rem_wait_sec <= 0) { /* on exceeding wait time return */
- Dmsg0(400, "Exceed wait time.\n");
- if (!double_jcr_wait_time(jcr)) {
- break; /* give up */
- }
- Jmsg(jcr, M_MOUNT, 0, msg);
- }
+ /* 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);
- add_wait = jcr->wait_sec - (now - start);
- if (add_wait < 0) {
- add_wait = 0;
- }
- if (me->heartbeat_interval && add_wait > me->heartbeat_interval) {
- add_wait = me->heartbeat_interval;
- }
- }
V(device_release_mutex);
- Dmsg1(000, "Return from wait_device ok=%d\n", ok);
+ Dmsg1(100, "Return from wait_device ok=%d\n", ok);
return ok;
}
+#ifdef xxx
/*
- * The jcr timers are used for waiting on any device
- *
+ * The jcr timers are used for waiting on any device *
* Returns: true if time doubled
- * false if max time expired
+ * false if max time expired
*/
static bool double_jcr_wait_time(JCR *jcr)
{
- jcr->wait_sec *= 2; /* double wait time */
+ jcr->wait_sec *= 2; /* double wait time */
if (jcr->wait_sec > jcr->max_wait) { /* but not longer than maxtime */
jcr->wait_sec = jcr->max_wait;
}
}
return true;
}
+#endif
projects / bacula / bacula / blobdiff