X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fstored%2Fautochanger.c;h=f42ce5db8b7cceb9b15a7250303e9fe0e1fed348;hb=a839f0af80ae757becd93b472d39cad6955b6351;hp=a1e49d18051fc73a8a6c208f00aa183038eec6c6;hpb=9d5709ec2611aab4d864510dc0b37d95ec23269f;p=bacula%2Fbacula

diff --git a/bacula/src/stored/autochanger.c b/bacula/src/stored/autochanger.c
index a1e49d1805..f42ce5db8b 100644
--- a/bacula/src/stored/autochanger.c
+++ b/bacula/src/stored/autochanger.c
@@ -7,19 +7,32 @@
  *   Version $Id$
  */
 /*
-   Copyright (C) 2002-2005 Kern Sibbald
+   Bacula® - The Network Backup Solution
 
-   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.
+   Copyright (C) 2002-2006 Free Software Foundation Europe e.V.
 
-   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.
+   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.
+*/
 
 #include "bacula.h"                   /* pull in global headers */
 #include "stored.h"                   /* pull in Storage Deamon headers */
@@ -29,6 +42,58 @@ static void lock_changer(DCR *dcr);
 static void unlock_changer(DCR *dcr);
 static bool unload_other_drive(DCR *dcr, int slot);
 
+/* Init all the autochanger resources found */
+bool init_autochangers()
+{
+   bool OK = true;
+   AUTOCHANGER *changer;
+   /* Ensure that the media_type for each device is the same */
+   foreach_res(changer, R_AUTOCHANGER) {
+      DEVRES *device;
+      foreach_alist(device, changer->device) {
+         /*
+          * If the device does not have a changer name or changer command
+          *   defined, used the one from the Autochanger resource 
+          */
+         if (!device->changer_name && changer->changer_name) {
+            device->changer_name = bstrdup(changer->changer_name);
+         }
+         if (!device->changer_command && changer->changer_command) {
+            device->changer_command = bstrdup(changer->changer_command);
+         }
+         if (!device->changer_name) {
+            Jmsg(NULL, M_ERROR, 0, 
+               _("No Changer Name given for device %s. Cannot continue.\n"),
+               device->hdr.name);
+            OK = false;
+         }   
+         if (!device->changer_command) {
+            Jmsg(NULL, M_ERROR, 0, 
+               _("No Changer Command given for device %s. Cannot continue.\n"),
+               device->hdr.name);
+            OK = false;
+         }   
+
+#ifdef xxx_needed
+         if (media_type == NULL) {
+            media_type = device->media_type;     /* get Media Type of first device */
+            continue;
+         }     
+         /* Ensure that other devices Media Types are the same */
+         if (strcmp(media_type, device->media_type) != 0) {
+            Jmsg(NULL, M_ERROR, 0, 
+               _("Media Type not the same for all devices in changer %s. Cannot continue.\n"),
+               changer->hdr.name);
+            OK = false;
+            continue;
+         }
+#endif
+      }
+   }
+   return OK;
+}
+
+
 /*
  * Called here to do an autoload using the autochanger, if
  *  configured, and if a Slot has been defined for this Volume.
@@ -52,12 +117,16 @@ int autoload_device(DCR *dcr, int writing, BSOCK *dir)
    int rtn_stat = -1;                 /* error status */
    POOLMEM *changer;
 
+   if (!dev->is_autochanger()) {
+      Dmsg1(200, "Device %s is not an autochanger\n", dev->print_name());
+      return 0;
+   }
    slot = dcr->VolCatInfo.InChanger ? dcr->VolCatInfo.Slot : 0;
    /*
     * 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 */
       }
@@ -70,13 +139,26 @@ 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, cannot autoload Volume.\n"), slot);
+      rtn_stat = 0;
+   } else if (!dcr->device->changer_name) {
+      Jmsg(jcr, M_INFO, 0, _("No \"Changer Device\" given cannot autoload Volume.\n"));
+      rtn_stat = 0;
+  } else if (!dcr->device->changer_command) {
+      Jmsg(jcr, M_INFO, 0, _("No \"Changer Command\" given cannot autoload Volume.\n"));
+      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)) {
             goto bail_out;
@@ -87,51 +169,51 @@ int autoload_device(DCR *dcr, int writing, BSOCK *dir)
             goto bail_out;
          }
 
-         /* We are going to load a new tape, so close the device */
-         offline_or_rewind_dev(dev);
-         force_close_device(dev);
-
          /*
           * Load the desired cassette
           */
-         Dmsg1(400, "Doing changer load slot %d\n", slot);
+         lock_changer(dcr);
+         Dmsg1(100, "Doing changer load slot %d\n", slot);
          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.c_str());
          if (status == 0) {
             Jmsg(jcr, M_INFO, 0, _("3305 Autochanger \"load slot %d, drive %d\", status is OK.\n"),
                     slot, drive);
+            Dmsg2(100, "load slot %d, drive %d, status is OK.\n", slot, drive);
             dev->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());
-            goto bail_out;
+            berrno be;
+            be.set_errno(status);
+            Dmsg3(100, "load slot %d, drive %d, bad stats=%s.\n", slot, drive,
+               be.strerror());
+            Jmsg(jcr, M_FATAL, 0, _("3992 Bad autochanger \"load slot %d, drive %d\": "
+                 "ERR=%s.\nResults=%s\n"),
+                    slot, drive, be.strerror(), results.c_str());
+            rtn_stat = -1;            /* hard error */
+            dev->Slot = -1;           /* mark unknown */
          }
+         Dmsg2(100, "load slot %d status=%d\n", slot, status);
          unlock_changer(dcr);
-         Dmsg2(400, "load slot %d status=%d\n", slot, status);
       } else {
          status = 0;                  /* we got what we want */
          dev->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;
 
 bail_out:
    free_pool_memory(changer);
-   unlock_changer(dcr);
    return -1;
 
 }
@@ -139,53 +221,60 @@ bail_out:
 /*
  * Returns: -1 if error from changer command
  *          slot otherwise
+ *  Note, this is safe to do without releasing the drive
+ *   since it does not attempt load/unload a slot.
  */
 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"));
       return -1;
    }
+   if (dev->Slot >0) {
+      return dev->Slot;
+   }
 
-   results = get_pool_memory(PM_MESSAGE);
+   /* Find out what is loaded, zero means device is unloaded */
    changer = get_pool_memory(PM_FNAME);
-
    lock_changer(dcr);
-
-   /* Find out what is loaded, zero means device is unloaded */
-   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);
+   *results.c_str() = 0;
+   Dmsg1(100, "Run program=%s\n", changer);
+   status = run_program_full_output(changer, timeout, results.c_str());
+   Dmsg3(100, "run_prog: %s stat=%d result=%s\n", 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->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->Slot = -1;    /* 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.strerror(), results.c_str());
       loaded = -1;              /* force unload */
    }
    unlock_changer(dcr);
    free_pool_memory(changer);
-   free_pool_memory(results);
    return loaded;
 }
 
@@ -193,7 +282,7 @@ 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 */
    }
 }
@@ -202,7 +291,7 @@ 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 */
    }
 }
@@ -230,15 +319,14 @@ bool unload_autochanger(DCR *dcr, int loaded)
       return false;
    }
 
-   /* We are going to load a new tape, so close the device */
-   offline_or_rewind_dev(dev);
-   force_close_device(dev);
-
    if (loaded < 0) {
       loaded = get_autochanger_loaded_slot(dcr);
    }
+
    if (loaded > 0) {
+      POOL_MEM results(PM_MESSAGE);
       POOLMEM *changer = get_pool_memory(PM_FNAME);
+      lock_changer(dcr);
       Jmsg(jcr, M_INFO, 0,
            _("3307 Issuing autochanger \"unload slot %d, drive %d\" command.\n"),
            loaded, dev->drive_index);
@@ -246,20 +334,24 @@ bool unload_autochanger(DCR *dcr, int loaded)
       dcr->VolCatInfo.Slot = loaded;
       changer = edit_device_codes(dcr, changer, 
                    dcr->device->changer_command, "unload");
-      lock_changer(dcr);
-      int stat = run_program(changer, timeout, NULL);
-      unlock_changer(dcr);
+      dev->close();
+      Dmsg1(100, "Run program=%s\n", changer);
+      *results.c_str() = 0;
+      int stat = run_program_full_output(changer, timeout, results.c_str());
       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.strerror(), results.c_str());
          ok = false;
+         dev->Slot = -1;           /* unknown */
       } else {
          dev->Slot = 0;            /* nothing loaded */
       }
       free_pool_memory(changer);
+      unlock_changer(dcr);
    }
    return ok;
 }
@@ -278,6 +370,7 @@ static bool unload_other_drive(DCR *dcr, int slot)
    AUTOCHANGER *changer = dcr->dev->device->changer_res;
    DEVRES *device;
    bool found = false;
+   bool first = true;
 
    if (!changer) {
       return false;
@@ -296,37 +389,53 @@ 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, first);
+         first = false;
+         continue;
+      }
+      break;
+   }
+   P(dev->mutex);
+   if (dev->is_busy()) {
+      Jmsg(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(), slot);
+      Dmsg2(100, "num_writ=%d reserv=%d\n", dev->num_writers, dev->reserved_device);
+      V(dev->mutex);
       return false;
    }
 
-   /* We are going to unload a tape, so close the device */
-   offline_or_rewind_dev(dev);
-   force_close_device(dev);
-
    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);
 
-   Dmsg2(200, "Issuing autochanger \"unload slot %d, drive %d\" command.\n",
+   Dmsg2(100, "Issuing autochanger \"unload slot %d, drive %d\" command.\n",
         slot, dev->drive_index);
 
-   save_slot = dcr->VolCatInfo.Slot;
    save_dev = dcr->dev;
    dcr->dev = dev;
+   save_slot = dcr->VolCatInfo.Slot;
    dcr->VolCatInfo.Slot = slot;
    changer_cmd = edit_device_codes(dcr, changer_cmd, 
                 dcr->device->changer_command, "unload");
-   lock_changer(dcr);
-   Dmsg1(200, "Run program=%s\n", changer_cmd);
-   int stat = run_program(changer_cmd, timeout, NULL);
-   unlock_changer(dcr);
+   dev->close();
+   Dmsg2(200, "close dev=%s reserve=%d\n", dev->print_name(), 
+      dev->reserved_device);
+   Dmsg1(100, "Run program=%s\n", changer_cmd);
+   int stat = run_program_full_output(changer_cmd, timeout, results.c_str());
    dcr->VolCatInfo.Slot = save_slot;
    dcr->dev = save_dev;
    if (stat != 0) {
@@ -335,13 +444,16 @@ static bool unload_other_drive(DCR *dcr, int slot)
       Jmsg(jcr, M_INFO, 0, _("3995 Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n"),
               slot, dev->drive_index, be.strerror());
 
-      Dmsg3(200, "Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n",
+      Dmsg3(100, "Bad autochanger \"unload slot %d, drive %d\": ERR=%s.\n",
               slot, dev->drive_index, be.strerror());
       ok = false;
+      dev->Slot = -1;          /* unknown */
    } else {
-      dev->Slot = 0;            /* nothing loaded */
-      Dmsg0(200, "Slot unloaded\n");
+      dev->Slot = 0;           /* nothing loaded */
+      Dmsg0(100, "Slot unloaded\n");
    }
+   unlock_changer(dcr);
+   V(dev->mutex);
    free_pool_memory(changer_cmd);
    return ok;
 }
@@ -365,25 +477,33 @@ 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");
+      }
       bnet_fsend(dir, _("3993 Device %s not an autochanger device.\n"),
          dev->print_name());
       return false;
    }
 
-   changer = get_pool_memory(PM_FNAME);
-   /* 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);
+      Dmsg1(100, "drives=%d\n", drives);
+      return true;
    }
 
+   changer = get_pool_memory(PM_FNAME);
+   lock_changer(dcr);
    /* 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);
-   lock_changer(dcr);
    bpipe = open_bpipe(changer, timeout, "r");
    if (!bpipe) {
-      unlock_changer(dcr);
       bnet_fsend(dir, _("3996 Open bpipe failed.\n"));
       goto bail_out;
    }
@@ -394,17 +514,20 @@ bool autochanger_cmd(DCR *dcr, BSOCK *dir, const char *cmd)
          Dmsg1(100, "<stored: %s\n", dir->msg);
          bnet_send(dir);
       }
-   } else {
+   } 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++)
+        { }
+      bnet_fsend(dir, "slots=%s", p);
       Dmsg1(100, "<stored: %s", dir->msg);
-      bnet_send(dir);
-   }
+   } 
                  
    stat = close_bpipe(bpipe);
-   unlock_changer(dcr);
    if (stat != 0) {
       berrno be;
       be.set_errno(stat);
@@ -414,6 +537,7 @@ bool autochanger_cmd(DCR *dcr, BSOCK *dir, const char *cmd)
    ok = true;
 
 bail_out:
+   unlock_changer(dcr);
    free_pool_memory(changer);
    return true;
 }