X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fstored%2Fautochanger.c;h=765c4ac528005b564774bda060bd98987f5e76da;hb=bbbdbbf8e1346435de97896364cef142f35b3f5c;hp=35127d4a3ac8160b81fd0a833524c2aa126030fd;hpb=264058d49306793a4854cdaa6c4c8fd5d4382b3e;p=bacula%2Fbacula

diff --git a/bacula/src/stored/autochanger.c b/bacula/src/stored/autochanger.c
index 35127d4a3a..765c4ac528 100644
--- a/bacula/src/stored/autochanger.c
+++ b/bacula/src/stored/autochanger.c
@@ -1,3 +1,30 @@
+/*
+   Bacula® - The Network Backup Solution
+
+   Copyright (C) 2002-2008 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 and included
+   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 Kern Sibbald.
+   The licensor of Bacula is the Free Software Foundation Europe
+   (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
+   Switzerland, email:ftf@fsfeurope.org.
+*/
 /*
  *
  *  Routines for handling the autochanger.
@@ -6,20 +33,6 @@
  *                            
  *   Version $Id$
  */
-/*
-   Copyright (C) 2002-2005 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 */
@@ -98,21 +111,35 @@ bool init_autochangers()
 int autoload_device(DCR *dcr, int writing, BSOCK *dir)
 {
    JCR *jcr = dcr->jcr;
-   DEVICE *dev = dcr->dev;
+   DEVICE * volatile dev = dcr->dev;
    int slot;
    int drive = dev->drive_index;
    int rtn_stat = -1;                 /* error status */
    POOLMEM *changer;
 
+   if (!dev->is_autochanger()) {
+      Dmsg1(100, "Device %s is not an autochanger\n", dev->print_name());
+      return 0;
+   }
+
+   /* An empty ChangerCommand => virtual disk autochanger */
+   if (dcr->device->changer_command && dcr->device->changer_command[0] == 0) {
+      Dmsg0(100, "ChangerCommand=0, virtual disk changer\n");
+      return 1;                       /* nothing to load */
+   }
+
    slot = dcr->VolCatInfo.InChanger ? dcr->VolCatInfo.Slot : 0;
+   Dmsg3(100, "autoload: slot=%d InChgr=%d Vol=%s\n", dcr->VolCatInfo.Slot,
+         dcr->VolCatInfo.InChanger, dcr->VolCatInfo.VolCatName);
    /*
     * Handle autoloaders here.  If we cannot autoload it, we
     *  will return 0 so that the sysop will be asked to load it.
     */
-   if (writing && dev->is_autochanger() && slot <= 0) {
+   if (writing && slot <= 0) {
       if (dir) {
          return 0;                    /* For user, bail out right now */
       }
+      /* ***FIXME*** this really should not be here */
       if (dir_find_next_appendable_volume(dcr)) {
          slot = dcr->VolCatInfo.InChanger ? dcr->VolCatInfo.Slot : 0;
       } else {
@@ -122,13 +149,29 @@ int autoload_device(DCR *dcr, int writing, BSOCK *dir)
    Dmsg1(400, "Want changer slot=%d\n", slot);
 
    changer = get_pool_memory(PM_FNAME);
-   if (slot > 0 && dcr->device->changer_name && dcr->device->changer_command) {
+   if (slot <= 0) {
+      Jmsg(jcr, M_INFO, 0, _("Invalid slot=%d defined in catalog for Volume \"%s\" "
+           "on %s. Manual load may be required.\n"), slot, dcr->VolCatInfo.VolCatName,
+           dev->print_name());
+      rtn_stat = 0;
+   } else if (!dcr->device->changer_name) {
+      Jmsg(jcr, M_INFO, 0, _("No \"Changer Device\" for %s. Manual load of Volume may be required.\n"),
+           dev->print_name());
+      rtn_stat = 0;
+  } else if (!dcr->device->changer_command) {
+      Jmsg(jcr, M_INFO, 0, _("No \"Changer Command\" for %s. Manual load of Volume may be requird.\n"),
+           dev->print_name());
+      rtn_stat = 0;
+  } else {
+      /* Attempt to load the Volume */
+
       uint32_t timeout = dcr->device->max_changer_wait;
       int loaded, status;
 
       loaded = get_autochanger_loaded_slot(dcr);
 
       if (loaded != slot) {
+         POOL_MEM results(PM_MESSAGE);
 
          /* Unload anything in our drive */
          if (!unload_autochanger(dcr, loaded)) {
@@ -144,37 +187,41 @@ int autoload_device(DCR *dcr, int writing, BSOCK *dir)
           * Load the desired cassette
           */
          lock_changer(dcr);
-         Dmsg1(400, "Doing changer load slot %d\n", slot);
+         Dmsg2(100, "Doing changer load slot %d %s\n", slot, dev->print_name());
          Jmsg(jcr, M_INFO, 0,
               _("3304 Issuing autochanger \"load slot %d, drive %d\" command.\n"),
               slot, drive);
          dcr->VolCatInfo.Slot = slot;    /* slot to be loaded */
-         changer = edit_device_codes(dcr, changer, 
-                      dcr->device->changer_command, "load");
-         status = run_program(changer, timeout, NULL);
+         changer = edit_device_codes(dcr, changer, dcr->device->changer_command, "load");
+         dev->close();
+         Dmsg1(200, "Run program=%s\n", changer);
+         status = run_program_full_output(changer, timeout, results.addr());
          if (status == 0) {
             Jmsg(jcr, M_INFO, 0, _("3305 Autochanger \"load slot %d, drive %d\", status is OK.\n"),
                     slot, drive);
-            dev->Slot = slot;         /* set currently loaded slot */
+            Dmsg2(100, "load slot %d, drive %d, status is OK.\n", slot, drive);
+            dev->set_slot(slot);      /* set currently loaded slot */
          } else {
-           berrno be;
-           be.set_errno(status);
-            Jmsg(jcr, M_FATAL, 0, _("3992 Bad autochanger \"load slot %d, drive %d\": ERR=%s.\n"),
-                    slot, drive, be.strerror());
+            berrno be;
+            be.set_errno(status);
+            Dmsg3(100, "load slot %d, drive %d, bad stats=%s.\n", slot, drive,
+               be.bstrerror());
+            Jmsg(jcr, M_FATAL, 0, _("3992 Bad autochanger \"load slot %d, drive %d\": "
+                 "ERR=%s.\nResults=%s\n"),
+                    slot, drive, be.bstrerror(), results.c_str());
             rtn_stat = -1;            /* hard error */
+            dev->set_slot(-1);        /* mark unknown */
          }
-         Dmsg2(400, "load slot %d status=%d\n", slot, status);
+         Dmsg2(100, "load slot %d status=%d\n", slot, status);
          unlock_changer(dcr);
       } else {
          status = 0;                  /* we got what we want */
-         dev->Slot = slot;            /* set currently loaded slot */
+         dev->set_slot(slot);         /* set currently loaded slot */
       }
-      Dmsg1(400, "After changer, status=%d\n", status);
+      Dmsg1(100, "After changer, status=%d\n", status);
       if (status == 0) {              /* did we succeed? */
          rtn_stat = 1;                /* tape loaded by changer */
       }
-   } else {
-      rtn_stat = 0;                   /* no changer found */
    }
    free_pool_memory(changer);
    return rtn_stat;
@@ -194,49 +241,58 @@ bail_out:
 int get_autochanger_loaded_slot(DCR *dcr)
 {
    JCR *jcr = dcr->jcr;
-   POOLMEM *changer, *results;
+   DEVICE *dev = dcr->dev;
    int status, loaded;
    uint32_t timeout = dcr->device->max_changer_wait;
    int drive = dcr->dev->drive_index;
+   POOL_MEM results(PM_MESSAGE);
+   POOLMEM *changer;
 
+   if (!dev->is_autochanger()) {
+      return -1;
+   }
    if (!dcr->device->changer_command) {
-      Jmsg(jcr, M_FATAL, 0, _("3992 Missing Changer command.\n"));
+//    Jmsg(jcr, M_FATAL, 0, _("3992 Missing Changer command.\n"));
       return -1;
    }
+   if (dev->get_slot() > 0) {
+      return dev->get_slot();
+   }
 
-   results = get_pool_memory(PM_MESSAGE);
-   changer = get_pool_memory(PM_FNAME);
-
+   /* Virtual disk autochanger */
+   if (dcr->device->changer_command[0] == 0) {
+      return 1;
+   }
 
    /* Find out what is loaded, zero means device is unloaded */
+   changer = get_pool_memory(PM_FNAME);
    lock_changer(dcr);
-   Jmsg(jcr, M_INFO, 0, _("3301 Issuing autochanger \"loaded drive %d\" command.\n"),
+   Jmsg(jcr, M_INFO, 0, _("3301 Issuing autochanger \"loaded? drive %d\" command.\n"),
         drive);
    changer = edit_device_codes(dcr, changer, dcr->device->changer_command, "loaded");
-   *results = 0;
-   status = run_program(changer, timeout, results);
-   Dmsg3(50, "run_prog: %s stat=%d result=%s\n", changer, status, results);
+   Dmsg1(100, "Run program=%s\n", changer);
+   status = run_program_full_output(changer, timeout, results.addr());
+   Dmsg3(100, "run_prog: %s stat=%d result=%s", changer, status, results.c_str());
    if (status == 0) {
-      loaded = atoi(results);
+      loaded = str_to_int32(results.c_str());
       if (loaded > 0) {
-         Jmsg(jcr, M_INFO, 0, _("3302 Autochanger \"loaded drive %d\", result is Slot %d.\n"),
+         Jmsg(jcr, M_INFO, 0, _("3302 Autochanger \"loaded? drive %d\", result is Slot %d.\n"),
               drive, loaded);
-         dcr->dev->Slot = loaded;
+         dev->set_slot(loaded);
       } else {
-         Jmsg(jcr, M_INFO, 0, _("3302 Autochanger \"loaded drive %d\", result: nothing loaded.\n"),
+         Jmsg(jcr, M_INFO, 0, _("3302 Autochanger \"loaded? drive %d\", result: nothing loaded.\n"),
               drive);
-         dcr->dev->Slot = 0;
+         dev->clear_slot();   /* unknown */
       }
    } else {
       berrno be;
       be.set_errno(status);
-      Jmsg(jcr, M_INFO, 0, _("3991 Bad autochanger \"loaded drive %d\" command: ERR=%s.\n"),
-           drive, be.strerror());
+      Jmsg(jcr, M_INFO, 0, _("3991 Bad autochanger \"loaded? drive %d\" command: "
+           "ERR=%s.\nResults=%s\n"), drive, be.bstrerror(), results.c_str());
       loaded = -1;              /* force unload */
    }
    unlock_changer(dcr);
    free_pool_memory(changer);
-   free_pool_memory(results);
    return loaded;
 }
 
@@ -244,7 +300,7 @@ static void lock_changer(DCR *dcr)
 {
    AUTOCHANGER *changer_res = dcr->device->changer_res;
    if (changer_res) {
-      Dmsg1(100, "Locking changer %s\n", changer_res->hdr.name);
+      Dmsg1(200, "Locking changer %s\n", changer_res->hdr.name);
       P(changer_res->changer_mutex);  /* Lock changer script */
    }
 }
@@ -253,7 +309,7 @@ static void unlock_changer(DCR *dcr)
 {
    AUTOCHANGER *changer_res = dcr->device->changer_res;
    if (changer_res) {
-      Dmsg1(100, "Unlocking changer %s\n", changer_res->hdr.name);
+      Dmsg1(200, "Unlocking changer %s\n", changer_res->hdr.name);
       V(changer_res->changer_mutex);  /* Unlock changer script */
    }
 }
@@ -281,15 +337,18 @@ bool unload_autochanger(DCR *dcr, int loaded)
       return false;
    }
 
+   /* Virtual disk autochanger */
+   if (dcr->device->changer_command[0] == 0) {
+      dev->clear_unload();
+      return true;
+   }
+
    if (loaded < 0) {
       loaded = get_autochanger_loaded_slot(dcr);
    }
 
-   /* We are going to load a new tape, so close the device */
-   offline_or_rewind_dev(dev);
-   force_close_device(dev);
-
    if (loaded > 0) {
+      POOL_MEM results(PM_MESSAGE);
       POOLMEM *changer = get_pool_memory(PM_FNAME);
       lock_changer(dcr);
       Jmsg(jcr, M_INFO, 0,
@@ -299,19 +358,28 @@ bool unload_autochanger(DCR *dcr, int loaded)
       dcr->VolCatInfo.Slot = loaded;
       changer = edit_device_codes(dcr, changer, 
                    dcr->device->changer_command, "unload");
-      int stat = run_program(changer, timeout, NULL);
+      dev->close();
+      Dmsg1(100, "Run program=%s\n", changer);
+      int stat = run_program_full_output(changer, timeout, results.addr());
       dcr->VolCatInfo.Slot = slot;
       if (stat != 0) {
          berrno be;
          be.set_errno(stat);
-         Jmsg(jcr, M_INFO, 0, _("3995 Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n"),
-                 slot, dev->drive_index, be.strerror());
+         Jmsg(jcr, M_INFO, 0, _("3995 Bad autochanger \"unload slot %d, drive %d\": "
+              "ERR=%s\nResults=%s\n"),
+                 loaded, dev->drive_index, be.bstrerror(), results.c_str());
          ok = false;
+         dev->clear_slot();        /* unknown */
       } else {
-         dev->Slot = 0;            /* nothing loaded */
+         dev->set_slot(0);         /* nothing loaded */
       }
-      free_pool_memory(changer);
       unlock_changer(dcr);
+
+      free_volume(dev);            /* Free any volume associated with this drive */
+      free_pool_memory(changer);
+   }
+   if (ok) {
+      dev->clear_unload();
    }
    return ok;
 }
@@ -322,14 +390,10 @@ bool unload_autochanger(DCR *dcr, int loaded)
 static bool unload_other_drive(DCR *dcr, int slot)
 {
    DEVICE *dev = NULL;
-   DEVICE *save_dev;
-   JCR *jcr = dcr->jcr;
-   int save_slot;
-   uint32_t timeout = dcr->device->max_changer_wait;
-   bool ok = true;
+   bool found = false;
    AUTOCHANGER *changer = dcr->dev->device->changer_res;
    DEVRES *device;
-   bool found = false;
+   int retries = 0;                /* wait for device retries */
 
    if (!changer) {
       return false;
@@ -339,7 +403,7 @@ static bool unload_other_drive(DCR *dcr, int slot)
    }
 
    foreach_alist(device, changer->device) {
-      if (device->dev && device->dev->Slot == slot) {
+      if (device->dev && device->dev->get_slot() == slot) {
          found = true;
          dev = device->dev;
          break;
@@ -348,52 +412,100 @@ static bool unload_other_drive(DCR *dcr, int slot)
    if (!found) {
       return true;
    }
+
+   /* The Volume we want is on another device. */
    if (dev->is_busy()) {
-      Jmsg(jcr, M_WARNING, 0, _("Volume %s is in use by device %s\n"),
-           dcr->VolumeName, dev->print_name());
-      Dmsg2(200, "Volume %s is in use by device %s\n",
+      Dmsg4(100, "Vol %s for dev=%s in use dev=%s slot=%d\n",
+           dcr->VolumeName, dcr->dev->print_name(),
+           dev->print_name(), slot);
+   }   
+   for (int i=0; i < 3; i++) {
+      if (dev->is_busy()) {
+         wait_for_device(dcr->jcr, retries);
+         continue;
+      }
+      break;
+   }
+   if (dev->is_busy()) {
+      Jmsg(dcr->jcr, M_WARNING, 0, _("Volume \"%s\" is in use by device %s\n"),
            dcr->VolumeName, dev->print_name());
-      
+      Dmsg4(100, "Vol %s for dev=%s is busy dev=%s slot=%d\n",
+           dcr->VolumeName, dcr->dev->print_name(), dev->print_name(), dev->get_slot());
+      Dmsg2(100, "num_writ=%d reserv=%d\n", dev->num_writers, dev->num_reserved());
+      return false;
+   }
+   return unload_dev(dcr, dev);
+}
+
+/*
+ * Unconditionally unload a specified drive
+ */
+bool unload_dev(DCR *dcr, DEVICE *dev)
+{
+   JCR *jcr = dcr->jcr;
+   bool ok = true;
+   uint32_t timeout = dcr->device->max_changer_wait;
+   AUTOCHANGER *changer = dcr->dev->device->changer_res;
+   DEVICE *save_dev;
+   int save_slot;
+
+   if (!changer) {
       return false;
    }
 
-   /* We are going to unload a tape, so close the device */
-   offline_or_rewind_dev(dev);
-   force_close_device(dev);
+   save_dev = dcr->dev;               /* save dcr device */
+   dcr->dev = dev;                    /* temporarily point dcr at other device */
+
+   if (dev->get_slot() <= 0 && get_autochanger_loaded_slot(dcr) <= 0) {
+      dcr->dev = save_dev;
+      return false;
+   }
+   save_slot = dcr->VolCatInfo.Slot;
+   dcr->VolCatInfo.Slot = dev->get_slot();
+
+   dev->dlock();
 
    POOLMEM *changer_cmd = get_pool_memory(PM_FNAME);
+   POOL_MEM results(PM_MESSAGE);
    lock_changer(dcr);
    Jmsg(jcr, M_INFO, 0,
         _("3307 Issuing autochanger \"unload slot %d, drive %d\" command.\n"),
-        slot, dev->drive_index);
+        dev->get_slot(), dev->drive_index);
 
-   Dmsg2(200, "Issuing autochanger \"unload slot %d, drive %d\" command.\n",
-        slot, dev->drive_index);
+   Dmsg2(100, "Issuing autochanger \"unload slot %d, drive %d\" command.\n",
+        dev->get_slot(), dev->drive_index);
 
-   save_slot = dcr->VolCatInfo.Slot;
-   save_dev = dcr->dev;
-   dcr->dev = dev;
-   dcr->VolCatInfo.Slot = slot;
    changer_cmd = edit_device_codes(dcr, changer_cmd, 
                 dcr->device->changer_command, "unload");
-   Dmsg1(200, "Run program=%s\n", changer_cmd);
-   int stat = run_program(changer_cmd, timeout, NULL);
+   dev->close();
+   Dmsg2(200, "close dev=%s reserve=%d\n", dev->print_name(), 
+      dev->num_reserved());
+   Dmsg1(100, "Run program=%s\n", changer_cmd);
+   int stat = run_program_full_output(changer_cmd, timeout, results.addr());
    dcr->VolCatInfo.Slot = save_slot;
    dcr->dev = save_dev;
    if (stat != 0) {
       berrno be;
       be.set_errno(stat);
       Jmsg(jcr, M_INFO, 0, _("3995 Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n"),
-              slot, dev->drive_index, be.strerror());
+              dev->get_slot(), dev->drive_index, be.bstrerror());
 
-      Dmsg3(200, "Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n",
-              slot, dev->drive_index, be.strerror());
+      Dmsg3(100, "Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n",
+              dev->get_slot(), dev->drive_index, be.bstrerror());
       ok = false;
+      dev->clear_slot();          /* unknown */
    } else {
-      dev->Slot = 0;            /* nothing loaded */
-      Dmsg0(200, "Slot unloaded\n");
+      Dmsg2(100, "Slot %d unloaded %s\n", dev->get_slot(), dev->print_name());
+      dev->set_slot(0);           /* nothing loaded */
+   }
+   if (ok) {
+      dev->clear_unload();
    }
    unlock_changer(dcr);
+
+   dev->dunlock();
+
+   free_volume(dev);               /* Free any volume associated with this drive */
    free_pool_memory(changer_cmd);
    return ok;
 }
@@ -418,24 +530,20 @@ bool autochanger_cmd(DCR *dcr, BSOCK *dir, const char *cmd)
    if (!dev->is_autochanger() || !dcr->device->changer_name ||
        !dcr->device->changer_command) {
       if (strcmp(cmd, "drives") == 0) {
-         bnet_fsend(dir, "drives=1\n");
+         dir->fsend("drives=1\n");
       }
-      bnet_fsend(dir, _("3993 Device %s not an autochanger device.\n"),
+      dir->fsend(_("3993 Device %s not an autochanger device.\n"),
          dev->print_name());
       return false;
    }
 
-   /* List command? */
-   if (strcmp(cmd, "list") == 0) {
-      unload_autochanger(dcr, -1);
-   }
    if (strcmp(cmd, "drives") == 0) {
       AUTOCHANGER *changer_res = dcr->device->changer_res;
       int drives = 1;
       if (changer_res) {
          drives = changer_res->device->size();
       }
-      bnet_fsend(dir, "drives=%d\n", drives);
+      dir->fsend("drives=%d\n", drives);
       Dmsg1(100, "drives=%d\n", drives);
       return true;
    }
@@ -445,10 +553,10 @@ bool autochanger_cmd(DCR *dcr, BSOCK *dir, const char *cmd)
    /* Now issue the command */
    changer = edit_device_codes(dcr, changer, 
                  dcr->device->changer_command, cmd);
-   bnet_fsend(dir, _("3306 Issuing autochanger \"%s\" command.\n"), cmd);
+   dir->fsend(_("3306 Issuing autochanger \"%s\" command.\n"), cmd);
    bpipe = open_bpipe(changer, timeout, "r");
    if (!bpipe) {
-      bnet_fsend(dir, _("3996 Open bpipe failed.\n"));
+      dir->fsend(_("3996 Open bpipe failed.\n"));
       goto bail_out;
    }
    if (strcmp(cmd, "list") == 0) {
@@ -459,19 +567,23 @@ bool autochanger_cmd(DCR *dcr, BSOCK *dir, const char *cmd)
          bnet_send(dir);
       }
    } else if (strcmp(cmd, "slots") == 0 ) {
+      char buf[100], *p;
       /* For slots command, read a single line */
-      bstrncpy(dir->msg, "slots=", len);
-      fgets(dir->msg+6, len-6, bpipe->rfd);
-      dir->msglen = strlen(dir->msg);
+      buf[0] = 0;
+      fgets(buf, sizeof(buf)-1, bpipe->rfd);
+      buf[sizeof(buf)-1] = 0;
+      /* Strip any leading space in front of # of slots */
+      for (p=buf; B_ISSPACE(*p); p++)
+        { }
+      dir->fsend("slots=%s", p);
       Dmsg1(100, "<stored: %s", dir->msg);
-      bnet_send(dir);
    } 
                  
    stat = close_bpipe(bpipe);
    if (stat != 0) {
       berrno be;
       be.set_errno(stat);
-      bnet_fsend(dir, _("Autochanger error: ERR=%s\n"), be.strerror());
+      dir->fsend(_("Autochanger error: ERR=%s\n"), be.bstrerror());
    }
    bnet_sig(dir, BNET_EOD);
    ok = true;