- Dmsg1(400, "loaded=%s\n", results);
-
- /* If bad status or tape we want is not loaded, load it. */
- if (status != 0 || loaded != slot) {
- offline_or_rewind_dev(dev);
- /* We are going to load a new tape, so close the device */
- force_close_dev(dev);
- if (loaded != 0) { /* must unload drive */
- Dmsg0(400, "Doing changer unload.\n");
- Jmsg(jcr, M_INFO, 0, _("3302 Issuing autochanger \"unload\" command.\n"));
- changer = edit_device_codes(jcr, changer,
- jcr->device->changer_command, "unload");
- status = run_program(changer, timeout, NULL);
- Dmsg1(400, "unload status=%d\n", status);
- }
- /*
- * Load the desired cassette
- */
- Dmsg1(400, "Doing changer load slot %d\n", slot);
- Jmsg(jcr, M_INFO, 0, _("3303 Issuing autochanger \"load slot %d\" command.\n"),
- slot);
- changer = edit_device_codes(jcr, changer,
- jcr->device->changer_command, "load");
- status = run_program(changer, timeout, NULL);
- if (status == 0) {
- Jmsg(jcr, M_INFO, 0, _("3304 Autochanger \"load slot %d\", status is OK.\n"),
- slot);
- } else {
- Jmsg(jcr, M_INFO, 0, _("3992 Bad autochanger \"load slot %d\", status=%d.\n"),
- slot, status);
- }
- Dmsg2(400, "load slot %d status=%d\n", slot, status);
+ }
+ free_pool_memory(changer);
+ return rtn_stat;
+
+bail_out:
+ free_pool_memory(changer);
+ return -1;
+
+}
+
+/*
+ * 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;
+ 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->get_slot() > 0) {
+ return dev->get_slot();
+ }
+
+ /* 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"),
+ drive);
+ changer = edit_device_codes(dcr, changer, dcr->device->changer_command, "loaded");
+ 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 = str_to_int32(results.c_str());
+ if (loaded > 0) {
+ Jmsg(jcr, M_INFO, 0, _("3302 Autochanger \"loaded? drive %d\", result is Slot %d.\n"),
+ drive, loaded);
+ dev->set_slot(loaded);
+ } else {
+ Jmsg(jcr, M_INFO, 0, _("3302 Autochanger \"loaded? drive %d\", result: nothing loaded.\n"),
+ drive);
+ 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.\nResults=%s\n"), drive, be.bstrerror(), results.c_str());
+ loaded = -1; /* force unload */
+ }
+ unlock_changer(dcr);
+ free_pool_memory(changer);
+ return loaded;
+}
+
+static void lock_changer(DCR *dcr)
+{
+ AUTOCHANGER *changer_res = dcr->device->changer_res;
+ if (changer_res) {
+ Dmsg1(200, "Locking changer %s\n", changer_res->hdr.name);
+ P(changer_res->changer_mutex); /* Lock changer script */
+ }
+}
+
+static void unlock_changer(DCR *dcr)
+{
+ AUTOCHANGER *changer_res = dcr->device->changer_res;
+ if (changer_res) {
+ Dmsg1(200, "Unlocking changer %s\n", changer_res->hdr.name);
+ V(changer_res->changer_mutex); /* Unlock changer script */
+ }
+}
+
+/*
+ * Unload the volume, if any, in this drive
+ * On entry: loaded == 0 -- nothing to do
+ * loaded < 0 -- check if anything to do
+ * loaded > 0 -- load slot == loaded
+ */
+bool unload_autochanger(DCR *dcr, int loaded)
+{
+ DEVICE *dev = dcr->dev;
+ JCR *jcr = dcr->jcr;
+ int slot;
+ uint32_t timeout = dcr->device->max_changer_wait;
+ bool ok = true;
+
+ if (loaded == 0) {
+ return true;
+ }
+
+ if (!dev->is_autochanger() || !dcr->device->changer_name ||
+ !dcr->device->changer_command) {
+ 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);
+ }
+
+ 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);
+ slot = dcr->VolCatInfo.Slot;
+ dcr->VolCatInfo.Slot = loaded;
+ changer = edit_device_codes(dcr, changer,
+ dcr->device->changer_command, "unload");
+ 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\nResults=%s\n"),
+ loaded, dev->drive_index, be.bstrerror(), results.c_str());
+ ok = false;
+ dev->clear_slot(); /* unknown */
+ } else {
+ dev->set_slot(0); /* nothing loaded */