X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=bacula%2Fsrc%2Fstored%2Fdevice.c;h=7d5a9af81bf2e4ebace9dd2583ec056ebd96a9dd;hb=dc43fa5c6823b93c4206888e3bf639982af4563b;hp=d8bd920e6a694940af9a5332cbe4618aee955278;hpb=4db019d26d52ea0587f94a1f40a55a6238c0bfa9;p=bacula%2Fbacula diff --git a/bacula/src/stored/device.c b/bacula/src/stored/device.c index d8bd920e6a..7d5a9af81b 100644 --- a/bacula/src/stored/device.c +++ b/bacula/src/stored/device.c @@ -62,33 +62,36 @@ extern int debug_level; * Attempt to "recover" by obtaining a new Volume. * * Here are a few things to know: - * jcr->VolCatInfo contains the info on the "current" tape for this job. + * dcr->VolCatInfo contains the info on the "current" tape for this job. * dev->VolCatInfo contains the info on the tape in the drive. * The tape in the drive could have changed several times since * the last time the job used it (jcr->VolCatInfo). - * jcr->VolumeName is the name of the current/desired tape in the drive. + * dcr->VolumeName is the name of the current/desired tape in the drive. * * We enter with device locked, and * exit with device locked. * * Note, we are called only from one place in block.c * - * Returns: 1 on success - * 0 on failure + * Returns: true on success + * false on failure */ -int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) +bool fixup_device_block_write_error(DCR *dcr) { uint32_t stat; char PrevVolName[MAX_NAME_LENGTH]; DEV_BLOCK *label_blk; + DEV_BLOCK *block = dcr->block; char b1[30], b2[30]; time_t wait_time; char dt[MAX_TIME_LENGTH]; + JCR *jcr = dcr->jcr; + DEVICE *dev = dcr->dev; wait_time = time(NULL); stat = status_dev(dev); if (!(stat & BMT_EOD)) { - return 0; /* this really shouldn't happen */ + return false; /* this really shouldn't happen */ } Dmsg0(100, "======= Got EOD ========\n"); @@ -98,12 +101,12 @@ int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) unlock_device(dev); /* Create a jobmedia record for this job */ - if (!dir_create_jobmedia_record(jcr)) { + if (!dir_create_jobmedia_record(dcr)) { Jmsg(jcr, M_ERROR, 0, _("Could not create JobMedia record for Volume=\"%s\" Job=%s\n"), - jcr->VolCatInfo.VolCatName, jcr->Job); + dcr->VolCatInfo.VolCatName, jcr->Job); P(dev->mutex); unblock_device(dev); - return 0; + return false; } bstrncpy(dev->VolCatInfo.VolCatStatus, "Full", sizeof(dev->VolCatInfo.VolCatStatus)); @@ -111,10 +114,10 @@ int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) dev->VolCatInfo.VolCatStatus, dev->VolCatInfo.VolCatName); dev->VolCatInfo.VolCatFiles = dev->file; /* set number of files */ dev->VolCatInfo.VolCatJobs++; /* increment number of jobs */ - if (!dir_update_volume_info(jcr, dev, 0)) { /* send Volume info to Director */ + if (!dir_update_volume_info(dcr, false)) { /* send Volume info to Director */ P(dev->mutex); unblock_device(dev); - return 0; /* device locked */ + return false; /* device locked */ } Dmsg0(100, "Back from update_vol_info\n"); @@ -122,6 +125,7 @@ int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) bstrncpy(dev->VolHdr.PrevVolName, PrevVolName, sizeof(dev->VolHdr.PrevVolName)); label_blk = new_block(dev); + dcr->block = label_blk; /* Inform User about end of medium */ Jmsg(jcr, M_INFO, 0, _("End of medium on Volume \"%s\" Bytes=%s Blocks=%s at %s.\n"), @@ -129,16 +133,17 @@ int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) edit_uint64_with_commas(dev->VolCatInfo.VolCatBlocks, b2), bstrftime(dt, sizeof(dt), time(NULL))); - if (!mount_next_write_volume(jcr, dev, label_blk, 1)) { + if (!mount_next_write_volume(dcr, 1)) { free_block(label_blk); + dcr->block = block; P(dev->mutex); unblock_device(dev); - return 0; /* device locked */ + return false; /* device locked */ } P(dev->mutex); /* lock again */ Jmsg(jcr, M_INFO, 0, _("New volume \"%s\" mounted on device %s at %s.\n"), - jcr->VolumeName, dev_name(dev), bstrftime(dt, sizeof(dt), time(NULL))); + dcr->VolumeName, dev_name(dev), bstrftime(dt, sizeof(dt), time(NULL))); /* * If this is a new tape, the label_blk will contain the @@ -147,47 +152,51 @@ int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) * empty label_blk, and nothing will be written. */ Dmsg0(190, "write label block to dev\n"); - if (!write_block_to_dev(jcr->dcr, label_blk)) { + if (!write_block_to_dev(dcr)) { Pmsg1(0, "write_block_to_device Volume label failed. ERR=%s", strerror_dev(dev)); free_block(label_blk); + dcr->block = block; unblock_device(dev); - return 0; /* device locked */ + return false; /* device locked */ } free_block(label_blk); + dcr->block = block; /* * Walk through all attached jcrs indicating the volume has changed */ Dmsg1(100, "Walk attached jcrs. Volume=%s\n", dev->VolCatInfo.VolCatName); - for (JCR *mjcr=NULL; (mjcr=next_attached_jcr(dev, mjcr)); ) { +// for (JCR *mjcr=NULL; (mjcr=next_attached_jcr(dev, mjcr)); ) { + DCR *mdcr; + foreach_dlist(mdcr, dev->attached_dcrs) { + JCR *mjcr = mdcr->jcr; if (mjcr->JobId == 0) { continue; /* ignore console */ } - mjcr->dcr->NewVol = true; + mdcr->NewVol = true; if (jcr != mjcr) { - pm_strcpy(&mjcr->VolumeName, jcr->VolumeName); /* get a copy of the new volume */ - bstrncpy(mjcr->dcr->VolumeName, jcr->VolumeName, sizeof(mjcr->dcr->VolumeName)); + bstrncpy(mdcr->VolumeName, dcr->VolumeName, sizeof(mdcr->VolumeName)); } } /* Clear NewVol now because dir_get_volume_info() already done */ jcr->dcr->NewVol = false; - set_new_volume_parameters(jcr, dev); + set_new_volume_parameters(dcr); jcr->run_time += time(NULL) - wait_time; /* correct run time for mount wait */ /* Write overflow block to device */ Dmsg0(190, "Write overflow block to dev\n"); - if (!write_block_to_dev(jcr->dcr, block)) { + if (!write_block_to_dev(dcr)) { Pmsg1(0, "write_block_to_device overflow block failed. ERR=%s", strerror_dev(dev)); unblock_device(dev); - return 0; /* device locked */ + return false; /* device locked */ } unblock_device(dev); - return 1; /* device locked */ + return true; /* device locked */ } /* @@ -195,10 +204,11 @@ int fixup_device_block_write_error(JCR *jcr, DEVICE *dev, DEV_BLOCK *block) * concerning this job. The global changes were made earlier * in the dev structure. */ -void set_new_volume_parameters(JCR *jcr, DEVICE *dev) +void set_new_volume_parameters(DCR *dcr) { - DCR *dcr = jcr->dcr; - if (dcr->NewVol && !dir_get_volume_info(jcr, GET_VOL_INFO_FOR_WRITE)) { + JCR *jcr = dcr->jcr; + DEVICE *dev = dcr->dev; + if (dcr->NewVol && !dir_get_volume_info(dcr, GET_VOL_INFO_FOR_WRITE)) { Jmsg1(jcr, M_ERROR, 0, "%s", jcr->errmsg); } /* Set new start/end positions */ @@ -222,9 +232,9 @@ void set_new_volume_parameters(JCR *jcr, DEVICE *dev) * concerning this job. The global changes were made earlier * in the dev structure. */ -void set_new_file_parameters(JCR *jcr, DEVICE *dev) +void set_new_file_parameters(DCR *dcr) { - DCR *dcr = jcr->dcr; + DEVICE *dev = dcr->dev; /* Set new start/end positions */ if (dev_state(dev, ST_TAPE)) { @@ -254,14 +264,14 @@ void set_new_file_parameters(JCR *jcr, DEVICE *dev) * that we can get the filename; the device_name for * a file is the directory only. * - * Retuns: 0 on failure - * 1 on success + * Returns: false on failure + * true on success */ -int first_open_device(DEVICE *dev) +bool first_open_device(DEVICE *dev) { Dmsg0(120, "start open_output_device()\n"); if (!dev) { - return 0; + return false; } lock_device(dev); @@ -270,7 +280,7 @@ int first_open_device(DEVICE *dev) if (!dev_is_tape(dev)) { Dmsg0(129, "Device is file, deferring open.\n"); unlock_device(dev); - return 1; + return true; } if (!(dev->state & ST_OPENED)) { @@ -284,20 +294,21 @@ int first_open_device(DEVICE *dev) if (open_dev(dev, NULL, mode) < 0) { Emsg1(M_FATAL, 0, _("dev open failed: %s\n"), dev->errmsg); unlock_device(dev); - return 0; + return false; } } Dmsg1(129, "open_dev %s OK\n", dev_name(dev)); unlock_device(dev); - return 1; + return true; } /* * Make sure device is open, if not do so */ -int open_device(JCR *jcr, DEVICE *dev) +bool open_device(DCR *dcr) { + DEVICE *dev = dcr->dev; /* Open device */ if (!(dev_state(dev, ST_OPENED))) { int mode; @@ -306,13 +317,32 @@ int open_device(JCR *jcr, DEVICE *dev) } else { mode = OPEN_READ_WRITE; } - if (open_dev(dev, jcr->VolCatInfo.VolCatName, mode) < 0) { - Jmsg2(jcr, M_FATAL, 0, _("Unable to open device %s. ERR=%s\n"), - dev_name(dev), strerror_dev(dev)); - return 0; + if (open_dev(dev, dcr->VolCatInfo.VolCatName, mode) < 0) { + /* If polling, ignore the error */ + if (!dev->poll) { + Jmsg2(dcr->jcr, M_FATAL, 0, _("Unable to open device %s. ERR=%s\n"), + dev_name(dev), strerror_dev(dev)); + } + return false; } } - return 1; + return true; +} + +void dev_lock(DEVICE *dev) +{ + int errstat; + if ((errstat=rwl_writelock(&dev->lock))) { + Emsg1(M_ABORT, 0, "Device write lock failure. ERR=%s\n", strerror(errstat)); + } +} + +void dev_unlock(DEVICE *dev) +{ + int errstat; + if ((errstat=rwl_writeunlock(&dev->lock))) { + Emsg1(M_ABORT, 0, "Device write unlock failure. ERR=%s\n", strerror(errstat)); + } } /* @@ -320,7 +350,7 @@ int open_device(JCR *jcr, DEVICE *dev) * must wait. The no_wait_id thread is out obtaining a new volume * and preparing the label. */ -void _lock_device(char *file, int line, DEVICE *dev) +void _lock_device(const char *file, int line, DEVICE *dev) { int stat; Dmsg3(500, "lock %d from %s:%d\n", dev->dev_blocked, file, line); @@ -341,17 +371,38 @@ void _lock_device(char *file, int line, DEVICE *dev) /* * Check if the device is blocked or not */ -int device_is_unmounted(DEVICE *dev) +bool device_is_unmounted(DEVICE *dev) { - int stat; - P(dev->mutex); - stat = (dev->dev_blocked == BST_UNMOUNTED) || - (dev->dev_blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP); - V(dev->mutex); + bool stat; + int blocked = dev->dev_blocked; + stat = (blocked == BST_UNMOUNTED) || + (blocked == BST_UNMOUNTED_WAITING_FOR_SYSOP); return stat; } -void _unlock_device(char *file, int line, DEVICE *dev) +const char *edit_blocked_reason(DEVICE *dev) +{ + switch (dev->dev_blocked) { + case BST_NOT_BLOCKED: + return "not blocked"; + case BST_UNMOUNTED: + return "user unmounted device"; + case BST_WAITING_FOR_SYSOP: + return "waiting for operator action"; + case BST_DOING_ACQUIRE: + return "opening, validating, or positioning tape"; + case BST_WRITING_LABEL: + return "labeling tape"; + case BST_UNMOUNTED_WAITING_FOR_SYSOP: + return "closed by user during mount request"; + case BST_MOUNT: + return "mount request"; + default: + return "unknown blocked code"; + } +} + +void _unlock_device(const char *file, int line, DEVICE *dev) { Dmsg2(500, "unlock from %s:%d\n", file, line); V(dev->mutex); @@ -365,7 +416,7 @@ void _unlock_device(char *file, int line, DEVICE *dev) * the current thread can do slip through the lock_device() * calls without blocking. */ -void _block_device(char *file, int line, DEVICE *dev, int state) +void _block_device(const char *file, int line, DEVICE *dev, int state) { Dmsg3(500, "block set %d from %s:%d\n", state, file, line); ASSERT(dev->dev_blocked == BST_NOT_BLOCKED); @@ -378,7 +429,7 @@ void _block_device(char *file, int line, DEVICE *dev, int state) /* * Unblock the device, and wake up anyone who went to sleep. */ -void _unblock_device(char *file, int line, DEVICE *dev) +void _unblock_device(const char *file, int line, DEVICE *dev) { Dmsg3(500, "unblock %d from %s:%d\n", dev->dev_blocked, file, line); ASSERT(dev->dev_blocked); @@ -393,7 +444,7 @@ void _unblock_device(char *file, int line, DEVICE *dev) * Enter with device locked and blocked * Exit with device unlocked and blocked by us. */ -void _steal_device_lock(char *file, int line, DEVICE *dev, bsteal_lock_t *hold, int state) +void _steal_device_lock(const char *file, int line, DEVICE *dev, bsteal_lock_t *hold, int state) { Dmsg4(500, "steal lock. old=%d new=%d from %s:%d\n", dev->dev_blocked, state, file, line); @@ -409,7 +460,7 @@ void _steal_device_lock(char *file, int line, DEVICE *dev, bsteal_lock_t *hold, * Enter with device blocked by us but not locked * Exit with device locked, and blocked by previous owner */ -void _give_back_device_lock(char *file, int line, DEVICE *dev, bsteal_lock_t *hold) +void _give_back_device_lock(const char *file, int line, DEVICE *dev, bsteal_lock_t *hold) { Dmsg4(500, "return lock. old=%d new=%d from %s:%d\n", dev->dev_blocked, hold->dev_blocked, file, line);