+/*
+ 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.
+*/
/*
* Drive reservation functions for Storage Daemon
*
* Version $Id$
*
*/
-/*
- Copyright (C) 2000-2006 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"
#include "stored.h"
-
static dlist *vol_list = NULL;
static pthread_mutex_t vol_list_lock = PTHREAD_MUTEX_INITIALIZER;
-static pthread_mutex_t search_lock = PTHREAD_MUTEX_INITIALIZER;
/* Forward referenced functions */
static int can_reserve_drive(DCR *dcr, RCTX &rctx);
-static int search_res_for_device(RCTX &rctx);
static int reserve_device(RCTX &rctx);
static bool reserve_device_for_read(DCR *dcr);
static bool reserve_device_for_append(DCR *dcr, RCTX &rctx);
static bool use_storage_cmd(JCR *jcr);
static void queue_reserve_message(JCR *jcr);
-static void release_msgs(JCR *jcr);
/* Requests from the Director daemon */
static char use_storage[] = "use storage=%127s media_type=%127s "
return strcmp(((VOLRES *)item1)->vol_name, ((VOLRES *)item2)->vol_name);
}
+static brwlock_t reservation_lock;
+
+void init_reservations_lock()
+{
+ int errstat;
+ if ((errstat=rwl_init(&reservation_lock)) != 0) {
+ berrno be;
+ Emsg1(M_ABORT, 0, _("Unable to initialize reservation lock. ERR=%s\n"),
+ be.bstrerror(errstat));
+ }
+
+}
+
+void term_reservations_lock()
+{
+ rwl_destroy(&reservation_lock);
+}
+
+int reservations_lock_count = 0;
+
+/* This applies to a drive and to Volumes */
+void _lock_reservations()
+{
+ int errstat;
+ reservations_lock_count++;
+ if ((errstat=rwl_writelock(&reservation_lock)) != 0) {
+ berrno be;
+ Emsg2(M_ABORT, 0, "rwl_writelock failure. stat=%d: ERR=%s\n",
+ errstat, be.bstrerror(errstat));
+ }
+}
+
+void _unlock_reservations()
+{
+ int errstat;
+ reservations_lock_count--;
+ if ((errstat=rwl_writeunlock(&reservation_lock)) != 0) {
+ berrno be;
+ Emsg2(M_ABORT, 0, "rwl_writeunlock failure. stat=%d: ERR=%s\n",
+ errstat, be.bstrerror(errstat));
+ }
+}
+
+/*
+ * List Volumes -- this should be moved to status.c
+ */
+enum {
+ debug_lock = true,
+ debug_nolock = false
+};
+
+static void debug_list_volumes(const char *imsg, bool do_lock)
+{
+ VOLRES *vol;
+ POOL_MEM msg(PM_MESSAGE);
+ int count = 0;
+ DEVICE *dev = NULL;
+
+ if (do_lock) P(vol_list_lock);
+ for (vol=(VOLRES *)vol_list->first(); vol; vol=(VOLRES *)vol_list->next(vol)) {
+ if (vol->dev) {
+ Mmsg(msg, "List from %s: %s at %p on device %s\n", imsg,
+ vol->vol_name, vol->vol_name, vol->dev->print_name());
+ } else {
+ Mmsg(msg, "List from %s: %s at %p no dev\n", imsg, vol->vol_name, vol->vol_name);
+ }
+ Dmsg1(100, "%s", msg.c_str());
+ count++;
+ }
+
+ for (vol=(VOLRES *)vol_list->first(); vol; vol=(VOLRES *)vol_list->next(vol)) {
+ if (vol->dev == dev) {
+ Dmsg0(000, "Two Volumes on same device.\n");
+ ASSERT(0);
+ dev = vol->dev;
+ }
+ }
+
+ Dmsg2(100, "List from %s: %d volumes\n", imsg, count);
+ if (do_lock) V(vol_list_lock);
+}
+
+
+/*
+ * List Volumes -- this should be moved to status.c
+ */
+void list_volumes(void sendit(const char *msg, int len, void *sarg), void *arg)
+{
+ VOLRES *vol;
+ POOL_MEM msg(PM_MESSAGE);
+ int len;
+
+ P(vol_list_lock);
+ for (vol=(VOLRES *)vol_list->first(); vol; vol=(VOLRES *)vol_list->next(vol)) {
+ if (vol->dev) {
+ len = Mmsg(msg, "%s on device %s\n", vol->vol_name, vol->dev->print_name());
+ sendit(msg.c_str(), len, arg);
+ } else {
+ len = Mmsg(msg, "%s no dev\n", vol->vol_name);
+ sendit(msg.c_str(), len, arg);
+ }
+ }
+ V(vol_list_lock);
+}
+
+/*
+ * Create a Volume item to put in the Volume list
+ * Ensure that the device points to it.
+ */
+static VOLRES *new_vol_item(DCR *dcr, const char *VolumeName)
+{
+ VOLRES *vol;
+ vol = (VOLRES *)malloc(sizeof(VOLRES));
+ memset(vol, 0, sizeof(VOLRES));
+ vol->vol_name = bstrdup(VolumeName);
+ vol->dev = dcr->dev;
+ Dmsg4(100, "New Vol=%s at %p dev=%s JobId=%u\n", VolumeName, vol->vol_name,
+ vol->dev->print_name(), (int)dcr->jcr->JobId);
+ return vol;
+}
+
+static void free_vol_item(VOLRES *vol)
+{
+ free(vol->vol_name);
+ if (vol->dev) {
+ vol->dev->vol = NULL;
+ }
+ free(vol);
+}
+
/*
* Put a new Volume entry in the Volume list. This
* effectively reserves the volume so that it will
* not be mounted again.
+ *
+ * If the device has any current volume associated with it,
+ * and it is a different Volume, and the device is not busy,
+ * we release the old Volume item and insert the new one.
+ *
+ * It is assumed that the device is free and locked so that
+ * we can change the device structure.
+ *
+ * Some details of the Volume list handling:
+ *
+ * 1. The Volume list entry must be attached to the drive (rather than
+ * attached to a job as it currently is. I.e. the drive that "owns"
+ * the volume (reserved, in use, mounted)
+ * must point to the volume (still to be maintained in a list).
+ *
+ * 2. The Volume is entered in the list when a drive is reserved.
+ *
+ * 3. When a drive is in use, the device code must appropriately update the
+ * volume name as it changes (currently the list is static -- an entry is
+ * removed when the Volume is no longer reserved, in use or mounted).
+ * The new code must keep the same list entry as long as the drive
+ * has any volume associated with it but the volume name in the list
+ * must be updated when the drive has a different volume mounted.
+ *
+ * 4. A job that has reserved a volume, can un-reserve the volume, and if the
+ * volume is not mounted, and not reserved, and not in use, it will be
+ * removed from the list.
+ *
+ * 5. If a job wants to reserve a drive with a different Volume from the one on
+ * the drive, it can re-use the drive for the new Volume.
+ *
+ * 6. If a job wants a Volume that is in a different drive, it can either use the
+ * other drive or take the volume, only if the other drive is not in use or
+ * not reserved.
+ *
+ * One nice aspect of this is that the reserve use count and the writer use count
+ * already exist and are correctly programmed and will need no changes -- use
+ * counts are always very tricky.
+ *
+ * The old code had a concept of "reserving" a Volume, but it needs to be changed
+ * to reserving and using a drive. A volume is must be attached to (owned by) a
+ * drive and can move from drive to drive or be unused given certain specific
+ * conditions of the drive. The key is that the drive must "own" the Volume.
+ * The old code has the job (dcr) owning the volume (more or less). The job is
+ * to change the insertion and removal of the volumes from the list to be based
+ * on the drive rather than the job. The new logic described above needs to be
+ * reviewed a couple more times for completeness and correctness. Then I can
+ * program it.
+
*
* Return: VOLRES entry on success
- * NULL if the Volume is already in the list
+ * NULL volume busy on another drive
*/
-VOLRES *new_volume(DCR *dcr, const char *VolumeName)
+VOLRES *reserve_volume(DCR *dcr, const char *VolumeName)
{
VOLRES *vol, *nvol;
+ DEVICE *dev = dcr->dev;
- Dmsg1(400, "new_volume %s\n", VolumeName);
+ ASSERT(dev != NULL);
+
+ Dmsg1(100, "reserve_volume %s\n", VolumeName);
+ /*
+ * We lock the reservations system here to ensure
+ * when adding a new volume that no newly scheduled
+ * job can reserve it.
+ */
P(vol_list_lock);
- if (dcr->dev) {
-again:
- foreach_dlist(vol, vol_list) {
- if (vol && vol->dev == dcr->dev) {
- vol_list->remove(vol);
- if (vol->vol_name) {
- free(vol->vol_name);
- }
- free(vol);
- goto again;
- }
+ debug_list_volumes("begin reserve_volume", debug_nolock);
+ /*
+ * First, remove any old volume attached to this device as it
+ * is no longer used.
+ */
+ if (dev->vol) {
+ vol = dev->vol;
+ /*
+ * Make sure we don't remove the current volume we are inserting
+ * because it was probably inserted by another job.
+ */
+ if (strcmp(vol->vol_name, VolumeName) == 0) {
+ goto get_out; /* Volume already on this device */
+ } else {
+ Dmsg3(100, "reserve_vol free vol=%s at %p JobId=%u\n", vol->vol_name,
+ vol->vol_name, (int)dcr->jcr->JobId);
+ debug_list_volumes("reserve_vol free", debug_nolock);
+ vol_list->remove(vol);
+ free_vol_item(vol);
}
}
- vol = (VOLRES *)malloc(sizeof(VOLRES));
- memset(vol, 0, sizeof(VOLRES));
- vol->vol_name = bstrdup(VolumeName);
- vol->dev = dcr->dev;
- vol->dcr = dcr;
- nvol = (VOLRES *)vol_list->binary_insert(vol, my_compare);
- if (nvol != vol) {
- free(vol->vol_name);
- free(vol);
- vol = NULL;
- if (dcr->dev) {
- nvol->dev = dcr->dev;
+
+ /* Create a new Volume entry */
+ nvol = new_vol_item(dcr, VolumeName);
+
+ /*
+ * Now try to insert the new Volume
+ */
+ vol = (VOLRES *)vol_list->binary_insert(nvol, my_compare);
+ if (vol != nvol) {
+ Dmsg2(100, "Found vol=%s dev-same=%d\n", vol->vol_name, dev==vol->dev);
+ /*
+ * At this point, a Volume with this name already is in the list,
+ * so we simply release our new Volume entry. Note, this should
+ * only happen if we are moving the volume from one drive to another.
+ */
+ Dmsg3(100, "reserve_vol free-tmp vol=%s at %p JobId=%u\n", vol->vol_name,
+ vol->vol_name, (int)dcr->jcr->JobId);
+ /*
+ * Clear dev pointer so that free_vol_item() doesn't
+ * take away our volume.
+ */
+ nvol->dev = NULL; /* don't zap dev entry */
+ free_vol_item(nvol);
+
+ /* Check if we are trying to use the Volume on a different drive */
+ if (dev != vol->dev) {
+ /* Caller wants to switch Volume to another device */
+ if (!vol->dev->is_busy()) {
+ /* OK to move it -- I'm not sure this will work */
+ Dmsg3(100, "==== Swap vol=%s from dev=%s to %s\n", VolumeName,
+ vol->dev->print_name(), dev->print_name());
+ vol->dev->vol = NULL; /* take vol from old drive */
+ vol->dev->VolHdr.VolumeName[0] = 0;
+ vol->dev = dev; /* point vol at new drive */
+ dev->vol = vol; /* point dev at vol */
+ dev->VolHdr.VolumeName[0] = 0;
+ } else {
+ Dmsg3(100, "Volume busy could not swap vol=%s from dev=%s to %s\n", VolumeName,
+ vol->dev->print_name(), dev->print_name());
+ vol = NULL; /* device busy */
+ }
}
}
+ dev->vol = vol;
+
+get_out:
+ debug_list_volumes("end new volume", debug_nolock);
V(vol_list_lock);
return vol;
}
VOLRES *find_volume(const char *VolumeName)
{
VOLRES vol, *fvol;
+ /* Do not lock reservations here */
P(vol_list_lock);
vol.vol_name = bstrdup(VolumeName);
fvol = (VOLRES *)vol_list->binary_search(&vol, my_compare);
free(vol.vol_name);
+ Dmsg2(100, "find_vol=%s found=%d\n", VolumeName, fvol!=NULL);
+ debug_list_volumes("find_volume", debug_nolock);
V(vol_list_lock);
return fvol;
}
+/*
+ * Remove any reservation from a drive and tell the system
+ * that the volume is unused at least by us.
+ */
+void unreserve_device(DCR *dcr)
+{
+ DEVICE *dev = dcr->dev;
+ dev->dlock();
+ if (dcr->reserved_device) {
+ dcr->reserved_device = false;
+ dev->reserved_device--;
+ Dmsg2(100, "Dec reserve=%d dev=%s\n", dev->reserved_device, dev->print_name());
+ dcr->reserved_device = false;
+ /* If we set read mode in reserving, remove it */
+ if (dev->can_read()) {
+ dev->clear_read();
+ }
+ if (dev->num_writers < 0) {
+ Jmsg1(dcr->jcr, M_ERROR, 0, _("Hey! num_writers=%d!!!!\n"), dev->num_writers);
+ dev->num_writers = 0;
+ }
+ }
+
+ volume_unused(dcr);
+ dev->dunlock();
+}
+
/*
- * Free a Volume from the Volume list
+ * Free a Volume from the Volume list if it is no longer used
*
* Returns: true if the Volume found and removed from the list
- * false if the Volume is not in the list
+ * false if the Volume is not in the list or is in use
*/
-bool free_volume(DEVICE *dev)
+bool volume_unused(DCR *dcr)
{
- VOLRES vol, *fvol;
+ DEVICE *dev = dcr->dev;
- P(vol_list_lock);
- if (dev->VolHdr.VolumeName[0] == 0) {
- /*
- * Our device has no VolumeName listed, but
- * search the list for any Volume attached to
- * this device and remove it.
- */
- foreach_dlist(fvol, vol_list) {
- if (fvol && fvol->dev == dev) {
- vol_list->remove(fvol);
- if (fvol->vol_name) {
- free(fvol->vol_name);
- }
- free(fvol);
- break;
- }
- }
- goto bail_out;
- }
- Dmsg1(400, "free_volume %s\n", dev->VolHdr.VolumeName);
- vol.vol_name = bstrdup(dev->VolHdr.VolumeName);
- fvol = (VOLRES *)vol_list->binary_search(&vol, my_compare);
- if (fvol) {
- vol_list->remove(fvol);
- free(fvol->vol_name);
- free(fvol);
+ if (dev->vol == NULL) {
+ Dmsg1(100, " unreserve_volume: no vol on %s\n", dev->print_name());
+ debug_list_volumes("null return unreserve_volume", debug_lock);
+ return false;
}
- free(vol.vol_name);
- dev->VolHdr.VolumeName[0] = 0;
-bail_out:
- V(vol_list_lock);
- return fvol != NULL;
-}
-/* Free volume reserved by this dcr but not attached to a dev */
-void free_unused_volume(DCR *dcr)
-{
- VOLRES *vol;
- P(vol_list_lock);
- for (vol=(VOLRES *)vol_list->first(); vol; vol=(VOLRES *)vol_list->next(vol)) {
- if (vol->dcr == dcr && (vol->dev == NULL ||
- strcmp(vol->vol_name, vol->dev->VolHdr.VolumeName) != 0)) {
- vol_list->remove(vol);
- free(vol->vol_name);
- free(vol);
- break;
- }
+ if (dev->is_busy()) {
+ Dmsg1(100, "unreserve_volume: dev is busy %s\n", dev->print_name());
+ debug_list_volumes("dev busy return unreserve_volume", debug_lock);
+ return false;
}
- V(vol_list_lock);
+
+ return free_volume(dev);
}
/*
- * List Volumes -- this should be moved to status.c
+ * Unconditionally release the volume
*/
-void list_volumes(BSOCK *user)
+bool free_volume(DEVICE *dev)
{
VOLRES *vol;
- for (vol=(VOLRES *)vol_list->first(); vol; vol=(VOLRES *)vol_list->next(vol)) {
- if (vol->dev) {
- bnet_fsend(user, "%s on device %s\n", vol->vol_name, vol->dev->print_name());
- } else {
- bnet_fsend(user, "%s\n", vol->vol_name);
- }
+
+ if (dev->vol == NULL) {
+ Dmsg1(100, "No vol on dev %s\n", dev->print_name());
+ return false;
}
+ P(vol_list_lock);
+ vol = dev->vol;
+ dev->vol = NULL;
+ Dmsg1(100, "free_volume %s\n", vol->vol_name);
+ vol_list->remove(vol);
+ Dmsg3(100, "free_volume %s at %p dev=%s\n", vol->vol_name, vol->vol_name,
+ dev->print_name());
+ free_vol_item(vol);
+ debug_list_volumes("free_volume", debug_nolock);
+ V(vol_list_lock);
+ return vol != NULL;
}
+
/* Create the Volume list */
-void init_volume_list()
+void create_volume_list()
{
VOLRES *dummy = NULL;
if (vol_list == NULL) {
if (!vol_list) {
return;
}
+ P(vol_list_lock);
for (vol=(VOLRES *)vol_list->first(); vol; vol=(VOLRES *)vol_list->next(vol)) {
- Dmsg3(000, "Unreleased Volume=%s dcr=0x%x dev=0x%x\n", vol->vol_name,
- vol->dcr, vol->dev);
+ Dmsg2(100, "Unreleased Volume=%s dev=%p\n", vol->vol_name, vol->dev);
+ free(vol->vol_name);
+ vol->vol_name = NULL;
}
delete vol_list;
vol_list = NULL;
+ V(vol_list_lock);
}
bool is_volume_in_use(DCR *dcr)
{
VOLRES *vol = find_volume(dcr->VolumeName);
if (!vol) {
+ Dmsg1(100, "Vol=%s not in use.\n", dcr->VolumeName);
return false; /* vol not in list */
}
- if (!vol->dev) { /* vol not attached to device */
- return false;
- }
+ ASSERT(vol->dev != NULL);
+
if (dcr->dev == vol->dev) { /* same device OK */
+ Dmsg1(100, "Vol=%s on same dev.\n", dcr->VolumeName);
return false;
}
if (!vol->dev->is_busy()) {
+ Dmsg2(100, "Vol=%s dev=%s not busy.\n", dcr->VolumeName, vol->dev->print_name());
return false;
}
+ Dmsg2(100, "Vol=%s used by %s.\n", dcr->VolumeName, vol->dev->print_name());
return true;
}
RCTX rctx;
char *msg;
alist *msgs;
+ alist *dirstore;
memset(&rctx, 0, sizeof(RCTX));
rctx.jcr = jcr;
* If there are multiple devices, the director sends us
* use_device for each device that it wants to use.
*/
- jcr->dirstore = New(alist(10, not_owned_by_alist));
+ dirstore = New(alist(10, not_owned_by_alist));
+// Dmsg2(000, "dirstore=%p JobId=%u\n", dirstore, jcr->JobId);
msgs = jcr->reserve_msgs = New(alist(10, not_owned_by_alist));
do {
Dmsg1(100, "<dird: %s", dir->msg);
if (!ok) {
break;
}
+ if (append) {
+ jcr->write_store = dirstore;
+ } else {
+ jcr->read_store = dirstore;
+ }
+ rctx.append = append;
unbash_spaces(store_name);
unbash_spaces(media_type);
unbash_spaces(pool_name);
unbash_spaces(pool_type);
store = new DIRSTORE;
- jcr->dirstore->append(store);
+ dirstore->append(store);
memset(store, 0, sizeof(DIRSTORE));
store->device = New(alist(10));
bstrncpy(store->name, store_name, sizeof(store->name));
store->append = append;
/* Now get all devices */
- while (bnet_recv(dir) >= 0) {
+ while (dir->recv() >= 0) {
Dmsg1(100, "<dird device: %s", dir->msg);
ok = sscanf(dir->msg, use_device, dev_name.c_str()) == 1;
if (!ok) {
unbash_spaces(dev_name);
store->device->append(bstrdup(dev_name.c_str()));
}
- } while (ok && bnet_recv(dir) >= 0);
+ } while (ok && dir->recv() >= 0);
#ifdef DEVELOPER
/* This loop is debug code and can be removed */
/* ***FIXME**** remove after 1.38 release */
char *device_name;
- foreach_alist(store, jcr->dirstore) {
- Dmsg5(100, "Storage=%s media_type=%s pool=%s pool_type=%s append=%d\n",
+ foreach_alist(store, dirstore) {
+ Dmsg5(110, "Storage=%s media_type=%s pool=%s pool_type=%s append=%d\n",
store->name, store->media_type, store->pool_name,
store->pool_type, store->append);
foreach_alist(device_name, store->device) {
- Dmsg1(100, " Device=%s\n", device_name);
+ Dmsg1(110, " Device=%s\n", device_name);
}
}
#endif
* Wiffle through them and find one that can do the backup.
*/
if (ok) {
- bool first = true; /* print wait message once */
- for ( ; !job_canceled(jcr); ) {
- P(search_lock); /* only one thread at a time */
+ int retries = 0; /* wait for device retries */
+ bool fail = false;
+ rctx.notify_dir = true;
+ lock_reservations();
+ for ( ; !fail && !job_canceled(jcr); ) {
while ((msg = (char *)msgs->pop())) {
free(msg);
}
rctx.suitable_device = false;
rctx.have_volume = false;
+ rctx.VolumeName[0] = 0;
rctx.any_drive = false;
if (!jcr->PreferMountedVols) {
/* Look for unused drives in autochangers */
rctx.PreferMountedVols = false;
rctx.exact_match = false;
rctx.autochanger_only = true;
- Dmsg5(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
+ Dmsg5(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only, rctx.any_drive);
if ((ok = find_suitable_device_for_job(jcr, rctx))) {
rctx.try_low_use_drive = false;
}
rctx.autochanger_only = false;
- Dmsg5(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
+ Dmsg5(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only, rctx.any_drive);
if ((ok = find_suitable_device_for_job(jcr, rctx))) {
rctx.PreferMountedVols = true;
rctx.exact_match = true;
rctx.autochanger_only = false;
- Dmsg5(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
+ Dmsg5(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only, rctx.any_drive);
if ((ok = find_suitable_device_for_job(jcr, rctx))) {
}
/* Look for any mounted drive */
rctx.exact_match = false;
- Dmsg5(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
+ Dmsg5(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only, rctx.any_drive);
if ((ok = find_suitable_device_for_job(jcr, rctx))) {
}
/* Try any drive */
rctx.any_drive = true;
- Dmsg5(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
+ Dmsg5(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only, rctx.any_drive);
if ((ok = find_suitable_device_for_job(jcr, rctx))) {
break;
}
- /* Unlock before possible wait */
- V(search_lock);
- if (!rctx.suitable_device || !wait_for_device(jcr, first)) {
- break; /* Get out, failure ... */
+ /* Keep reservations locked *except* during wait_for_device() */
+ unlock_reservations();
+ if (!rctx.suitable_device || !wait_for_device(jcr, retries)) {
+ Dmsg0(100, "Fail. !suitable_device || !wait_for_device\n");
+ fail = true;
}
- first = false;
+ lock_reservations();
bnet_sig(dir, BNET_HEARTBEAT); /* Inform Dir that we are alive */
}
- /* Note if !ok then search_lock is already cleared */
- if (ok) {
- V(search_lock);
- goto all_done;
- }
-
- /*
- * If we get here, there are no suitable devices available, which
- * means nothing configured. If a device is suitable but busy
- * with another Volume, we will not come here.
- */
- if (verbose) {
+ unlock_reservations();
+ if (!ok) {
+ /*
+ * If we get here, there are no suitable devices available, which
+ * means nothing configured. If a device is suitable but busy
+ * with another Volume, we will not come here.
+ */
unbash_spaces(dir->msg);
pm_strcpy(jcr->errmsg, dir->msg);
Jmsg(jcr, M_INFO, 0, _("Failed command: %s\n"), jcr->errmsg);
- }
- Jmsg(jcr, M_FATAL, 0, _("\n"
- " Device \"%s\" with MediaType \"%s\" requested by DIR not found in SD Device resources.\n"),
- dev_name.c_str(), media_type.c_str());
- bnet_fsend(dir, NO_device, dev_name.c_str());
+ Jmsg(jcr, M_FATAL, 0, _("\n"
+ " Device \"%s\" with MediaType \"%s\" requested by DIR not found in SD Device resources.\n"),
+ dev_name.c_str(), media_type.c_str());
+ bnet_fsend(dir, NO_device, dev_name.c_str());
- Dmsg1(100, ">dird: %s", dir->msg);
+ Dmsg1(100, ">dird: %s", dir->msg);
+ }
} else {
unbash_spaces(dir->msg);
pm_strcpy(jcr->errmsg, dir->msg);
- if (verbose) {
- Jmsg(jcr, M_INFO, 0, _("Failed command: %s\n"), jcr->errmsg);
- }
+ Jmsg(jcr, M_FATAL, 0, _("Failed command: %s\n"), jcr->errmsg);
bnet_fsend(dir, BAD_use, jcr->errmsg);
Dmsg1(100, ">dird: %s", dir->msg);
}
-all_done:
release_msgs(jcr);
return ok;
}
-static void release_msgs(JCR *jcr)
+void release_msgs(JCR *jcr)
{
alist *msgs = jcr->reserve_msgs;
char *msg;
- P(search_lock);
+ if (!msgs) {
+ return;
+ }
+ lock_reservations();
while ((msg = (char *)msgs->pop())) {
free(msg);
}
delete msgs;
jcr->reserve_msgs = NULL;
- V(search_lock);
+ unlock_reservations();
}
/*
bool ok;
DIRSTORE *store;
char *device_name;
+ alist *dirstore;
+ if (rctx.append) {
+ dirstore = jcr->write_store;
+ } else {
+ dirstore = jcr->read_store;
+ }
/*
* For each storage device that the user specified, we
* search and see if there is a resource for that device.
*/
- Dmsg4(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d\n",
+ Dmsg4(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only);
ok = false;
- foreach_alist(store, jcr->dirstore) {
+ foreach_alist(store, dirstore) {
rctx.store = store;
foreach_alist(device_name, store->device) {
int stat;
ok = true;
break;
} else if (stat == 0) { /* device busy */
- Dmsg1(100, "Suitable device found=%s, not used: busy\n", device_name);
+ Dmsg1(110, "Suitable device=%s, busy: not use\n", device_name);
} else {
/* otherwise error */
- Dmsg0(100, "No suitable device found.\n");
+ Dmsg0(110, "No suitable device found.\n");
}
}
if (ok) {
break;
}
}
-
return ok;
}
* Search for a particular storage device with particular storage
* characteristics (MediaType).
*/
-static int search_res_for_device(RCTX &rctx)
+int search_res_for_device(RCTX &rctx)
{
AUTOCHANGER *changer;
BSOCK *dir = rctx.jcr->dir_bsock;
bool ok;
int stat;
- Dmsg1(100, "Search res for %s\n", rctx.device_name);
+ Dmsg1(110, "Search res for %s\n", rctx.device_name);
/* Look through Autochangers first */
foreach_res(changer, R_AUTOCHANGER) {
Dmsg1(150, "Try match changer res=%s\n", changer->hdr.name);
if (fnmatch(rctx.device_name, changer->hdr.name, 0) == 0) {
/* Try each device in this AutoChanger */
foreach_alist(rctx.device, changer->device) {
- Dmsg1(100, "Try changer device %s\n", rctx.device->hdr.name);
+ Dmsg1(110, "Try changer device %s\n", rctx.device->hdr.name);
stat = reserve_device(rctx);
if (stat != 1) { /* try another device */
continue;
Dmsg2(100, "Device %s reserved=%d for read.\n", rctx.device->hdr.name,
rctx.jcr->read_dcr->dev->reserved_device);
}
- pm_strcpy(dev_name, rctx.device->hdr.name);
- bash_spaces(dev_name);
- ok = bnet_fsend(dir, OK_device, dev_name.c_str()); /* Return real device name */
- Dmsg1(100, ">dird changer: %s", dir->msg);
+ if (rctx.notify_dir) {
+ pm_strcpy(dev_name, rctx.device->hdr.name);
+ bash_spaces(dev_name);
+ ok = bnet_fsend(dir, OK_device, dev_name.c_str()); /* Return real device name */
+ Dmsg1(100, ">dird changer: %s", dir->msg);
+ } else {
+ ok = true;
+ }
return ok ? 1 : -1;
}
}
if (stat != 1) {
return stat;
}
- Dmsg1(220, "Got: %s", dir->msg);
- bash_spaces(rctx.device_name);
- ok = bnet_fsend(dir, OK_device, rctx.device_name);
- Dmsg1(100, ">dird dev: %s", dir->msg);
+ if (rctx.notify_dir) {
+ bash_spaces(rctx.device_name);
+ ok = bnet_fsend(dir, OK_device, rctx.device_name);
+ Dmsg1(100, ">dird dev: %s", dir->msg);
+ } else {
+ ok = true;
+ }
return ok ? 1 : -1;
}
}
const int name_len = MAX_NAME_LENGTH;
/* Make sure MediaType is OK */
- Dmsg2(100, "MediaType device=%s request=%s\n",
+ Dmsg2(110, "MediaType device=%s request=%s\n",
rctx.device->media_type, rctx.store->media_type);
if (strcmp(rctx.device->media_type, rctx.store->media_type) != 0) {
return -1;
}
rctx.suitable_device = true;
- Dmsg2(100, "Try reserve %s JobId=%u\n", rctx.device->hdr.name,
+ Dmsg2(110, "Try reserve %s JobId=%u\n", rctx.device->hdr.name,
rctx.jcr->JobId);
dcr = new_dcr(rctx.jcr, rctx.device->dev);
if (!dcr) {
bstrncpy(dcr->media_type, rctx.store->media_type, name_len);
bstrncpy(dcr->dev_name, rctx.device_name, name_len);
if (rctx.store->append == SD_APPEND) {
- if (rctx.exact_match && !rctx.have_volume) {
+ Dmsg2(100, "have_vol=%d vol=%s\n", rctx.have_volume, rctx.VolumeName);
+ if (!rctx.have_volume) {
dcr->any_volume = true;
if (dir_find_next_appendable_volume(dcr)) {
bstrncpy(rctx.VolumeName, dcr->VolumeName, sizeof(rctx.VolumeName));
- Dmsg2(100, "JobId=%u looking for Volume=%s\n", rctx.jcr->JobId, rctx.VolumeName);
+ Dmsg2(100, "JobId=%u looking for Volume=%s\n", (int)rctx.jcr->JobId, rctx.VolumeName);
rctx.have_volume = true;
} else {
Dmsg0(100, "No next volume found\n");
+ rctx.have_volume = false;
rctx.VolumeName[0] = 0;
}
}
}
}
if (!ok) {
+ rctx.have_volume = false;
free_dcr(dcr);
- Dmsg0(100, "Not OK.\n");
+ Dmsg0(110, "Not OK.\n");
return 0;
}
return 1;
ASSERT(dcr);
- P(dev->mutex);
+ dev->dlock();
if (is_device_unmounted(dev)) {
Dmsg1(200, "Device %s is BLOCKED due to user unmount.\n", dev->print_name());
dcr->reserved_device = true;
bail_out:
- V(dev->mutex);
+ dev->dunlock();
return ok;
}
ASSERT(dcr);
- P(dev->mutex);
+ dev->dlock();
/* If device is being read, we cannot write it */
if (dev->can_read()) {
Mmsg(jcr->errmsg, _("3603 JobId=%u device %s is busy reading.\n"),
jcr->JobId, dev->print_name());
- Dmsg1(100, "%s", jcr->errmsg);
+ Dmsg1(110, "%s", jcr->errmsg);
queue_reserve_message(jcr);
goto bail_out;
}
if (is_device_unmounted(dev)) {
Mmsg(jcr->errmsg, _("3604 JobId=%u device %s is BLOCKED due to user unmount.\n"),
jcr->JobId, dev->print_name());
- Dmsg1(100, "%s", jcr->errmsg);
+ Dmsg1(110, "%s", jcr->errmsg);
queue_reserve_message(jcr);
goto bail_out;
}
- Dmsg1(100, "reserve_append device is %s\n", dev->is_tape()?"tape":"disk");
+ Dmsg1(110, "reserve_append device is %s\n", dev->is_tape()?"tape":"disk");
/* Now do detailed tests ... */
if (can_reserve_drive(dcr, rctx) != 1) {
- Dmsg0(100, "can_reserve_drive!=1\n");
+ Dmsg0(110, "can_reserve_drive!=1\n");
goto bail_out;
}
ok = true;
bail_out:
- V(dev->mutex);
+ dev->dunlock();
return ok;
}
DEVICE *dev = dcr->dev;
JCR *jcr = dcr->jcr;
- Dmsg5(100, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
+ Dmsg5(110, "PrefMnt=%d exact=%d suitable=%d chgronly=%d any=%d\n",
rctx.PreferMountedVols, rctx.exact_match, rctx.suitable_device,
rctx.autochanger_only, rctx.any_drive);
* helps spread the load to the least used drives.
*/
if (rctx.try_low_use_drive && dev == rctx.low_use_drive) {
- Dmsg3(100, "OK dev=%s == low_drive=%s. JobId=%u\n",
+ Dmsg3(110, "OK dev=%s == low_drive=%s. JobId=%u\n",
dev->print_name(), rctx.low_use_drive->print_name(), jcr->JobId);
return 1;
}
if ((dev->num_writers + dev->reserved_device) < rctx.num_writers) {
rctx.num_writers = dev->num_writers + dev->reserved_device;
rctx.low_use_drive = dev;
- Dmsg2(100, "set low use drive=%s num_writers=%d\n", dev->print_name(),
+ Dmsg2(110, "set low use drive=%s num_writers=%d\n", dev->print_name(),
rctx.num_writers);
} else {
- Dmsg1(100, "not low use num_writers=%d\n", dev->num_writers+
+ Dmsg1(110, "not low use num_writers=%d\n", dev->num_writers+
dev->reserved_device);
}
- Dmsg1(100, "failed: !prefMnt && busy. JobId=%u\n", jcr->JobId);
+ Dmsg1(110, "failed: !prefMnt && busy. JobId=%u\n", jcr->JobId);
Mmsg(jcr->errmsg, _("3605 JobId=%u wants free drive but device %s is busy.\n"),
jcr->JobId, dev->print_name());
queue_reserve_message(jcr);
}
/* Check for prefer mounted volumes */
- if (rctx.PreferMountedVols && !dev->VolHdr.VolumeName[0] && dev->is_tape()) {
- Mmsg(jcr->errmsg, _("3606 JobId=%u wants mounted, but drive %s has no Volume.\n"),
+// if (rctx.PreferMountedVols && !dev->VolHdr.VolumeName[0] && dev->is_tape()) {
+ if (rctx.PreferMountedVols && !dev->vol && dev->is_tape()) {
+ Mmsg(jcr->errmsg, _("3606 JobId=%u prefers mounted drives, but drive %s has no Volume.\n"),
jcr->JobId, dev->print_name());
queue_reserve_message(jcr);
- Dmsg1(100, "failed: want mounted -- no vol JobId=%u\n", jcr->JobId);
+ Dmsg1(110, "failed: want mounted -- no vol JobId=%u\n", (uint32_t)jcr->JobId);
return 0; /* No volume mounted */
}
/* Check for exact Volume name match */
+ /* ***FIXME*** use dev->vol.VolumeName */
if (rctx.exact_match && rctx.have_volume &&
strcmp(dev->VolHdr.VolumeName, rctx.VolumeName) != 0) {
Mmsg(jcr->errmsg, _("3607 JobId=%u wants Vol=\"%s\" drive has Vol=\"%s\" on drive %s.\n"),
jcr->JobId, rctx.VolumeName, dev->VolHdr.VolumeName,
dev->print_name());
queue_reserve_message(jcr);
- Dmsg2(100, "failed: Not exact match have=%s want=%s\n",
+ Dmsg2(110, "failed: Not exact match have=%s want=%s\n",
dev->VolHdr.VolumeName, rctx.VolumeName);
return 0;
}
}
/* Check for unused autochanger drive */
+ /* ***FIXME*** use !dev->is_busy() */
if (rctx.autochanger_only && dev->num_writers == 0 &&
dev->VolHdr.VolumeName[0] == 0) {
/* Device is available but not yet reserved, reserve it for us */
return 1;
} else {
/* Drive Pool not suitable for us */
- Mmsg(jcr->errmsg, _("3608 JobId=%u wants Pool=\"%s\" but have Pool=\"%s\" on drive %s.\n"),
- jcr->JobId, dcr->pool_name, dev->pool_name, dev->print_name());
+ Mmsg(jcr->errmsg, _(
+"3608 JobId=%u wants Pool=\"%s\" but have Pool=\"%s\" nreserve=%d on drive %s.\n"),
+ jcr->JobId, dcr->pool_name, dev->pool_name,
+ dev->reserved_device, dev->print_name());
queue_reserve_message(jcr);
- Dmsg2(100, "failed: busy num_writers=0, reserved, pool=%s wanted=%s\n",
+ Dmsg2(110, "failed: busy num_writers=0, reserved, pool=%s wanted=%s\n",
dev->pool_name, dcr->pool_name);
return 0; /* wait */
}
return 1;
} else {
/* Drive Pool not suitable for us */
- Mmsg(jcr->errmsg, _("3609 JobId=%u wants Pool=\"%s\" but have Pool=\"%s\" on drive %s.\n"),
+ Mmsg(jcr->errmsg, _("3609 JobId=%u wants Pool=\"%s\" but has Pool=\"%s\" on drive %s.\n"),
jcr->JobId, dcr->pool_name, dev->pool_name, dev->print_name());
queue_reserve_message(jcr);
- Dmsg2(100, "failed: busy num_writers>0, can_append, pool=%s wanted=%s\n",
+ Dmsg2(110, "failed: busy num_writers>0, can_append, pool=%s wanted=%s\n",
dev->pool_name, dcr->pool_name);
return 0; /* wait */
}
Mmsg(jcr->errmsg, _("3911 JobId=%u failed reserve drive %s.\n"),
jcr->JobId, dev->print_name());
queue_reserve_message(jcr);
- Dmsg2(100, "failed: No reserve %s JobId=%u\n", dev->print_name(), jcr->JobId);
+ Dmsg2(110, "failed: No reserve %s JobId=%u\n", dev->print_name(), jcr->JobId);
return 0;
}
/*
* Send any reservation messages queued for this jcr
*/
-void send_drive_reserve_messages(JCR *jcr, BSOCK *user)
+void send_drive_reserve_messages(JCR *jcr, void sendit(const char *msg, int len, void *sarg), void *arg)
{
int i;
alist *msgs;
char *msg;
- P(search_lock);
+ lock_reservations();
msgs = jcr->reserve_msgs;
if (!msgs || msgs->size() == 0) {
- V(search_lock);
+ unlock_reservations();
return;
}
for (i=msgs->size()-1; i >= 0; i--) {
msg = (char *)msgs->get(i);
if (msg) {
- bnet_fsend(user, " %s", msg);
+ sendit(" ", 3, arg);
+ sendit(msg, strlen(msg), arg);
} else {
break;
}
}
- V(search_lock);
+ unlock_reservations();
}
projects / bacula / bacula / blobdiff