#include "stored.h"
/* Forward referenced functions */
-int dev_is_tape(DEVICE *dev);
-void clrerror_dev(DEVICE *dev, int func);
-int fsr_dev(DEVICE *dev, int num);
-
-extern int debug_level;
/*
* Allocate and initialize the DEVICE structure
if (dev->fd >= 0) {
dev->dev_errno = 0;
dev->state |= ST_OPENED;
- dev->use_count++;
+ dev->use_count = 1;
update_pos_dev(dev); /* update position */
}
/* Stop any open() timer we started */
} else {
dev->dev_errno = 0;
dev->state |= ST_OPENED;
- dev->use_count++;
+ dev->use_count = 1;
update_pos_dev(dev); /* update position */
}
Dmsg1(29, "open_dev: disk fd=%d opened\n", dev->fd);
return dev->fd;
}
+#ifdef debug_tracing
+#undef rewind_dev
+int _rewind_dev(char *file, int line, DEVICE *dev)
+{
+ Dmsg2(000, "rewind_dev called from %s:%d\n", file, line);
+ return rewind_dev(dev);
+}
+#endif
+
+
/*
* Rewind the device.
* Returns: 1 on success
struct mtop mt_com;
unsigned int i;
- Dmsg0(29, "rewind_dev\n");
+ Dmsg1(29, "rewind_dev %s\n", dev->dev_name);
if (dev->fd < 0) {
dev->dev_errno = EBADF;
Mmsg1(&dev->errmsg, _("Bad call to rewind_dev. Device %s not open\n"),
Emsg0(M_FATAL, 0, dev->errmsg);
return 0;
}
- dev->state &= ~(ST_APPEND|ST_READ|ST_EOT | ST_EOF | ST_WEOT); /* remove EOF/EOT flags */
+ dev->state &= ~(ST_APPEND|ST_READ|ST_EOT|ST_EOF|ST_WEOT); /* remove EOF/EOT flags */
dev->block_num = dev->file = 0;
dev->file_addr = 0;
if (dev->state & ST_TAPE) {
dev->state |= ST_EOT;
return 1;
}
+ dev->dev_errno = errno;
+ Mmsg2(&dev->errmsg, _("lseek error on %s. ERR=%s.\n"),
+ dev->dev_name, strerror(dev->dev_errno));
return 0;
}
#ifdef MTEOM
* the second EOF.
*/
if (dev_cap(dev, CAP_BSFATEOM)) {
- stat = (bsf_dev(dev, 1) == 0);
+ stat = bsf_dev(dev, 1);
dev->file++; /* keep same file */
} else {
update_pos_dev(dev); /* update position */
if (dev->fd < 0) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to load_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to offline_dev. Archive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
return 0;
}
return 1;
}
+ dev->state &= ~(ST_APPEND|ST_READ|ST_EOT|ST_EOF|ST_WEOT); /* remove EOF/EOT flags */
dev->block_num = dev->file = 0;
dev->file_addr = 0;
#ifdef MTUNLOCK
/*
* Backward space a file
+ * Returns: 0 on failure
+ * 1 on success
*/
int
bsf_dev(DEVICE *dev, int num)
if (dev->fd < 0) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to bsf_dev. Archive device not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ return 0;
}
- if (!(dev->state & ST_TAPE)) {
+ if (!(dev_state(dev, ST_TAPE))) {
+ Mmsg1(&dev->errmsg, _("Device %s cannot BSF because it is not a tape.\n"),
+ dev->dev_name);
return 0;
}
Dmsg0(29, "bsf_dev\n");
dev->dev_name, strerror(dev->dev_errno));
}
update_pos_dev(dev);
- return stat;
+ return stat == 0 ? 1 : 0;
}
/*
* Foward space a record
+ * Returns: 0 on failure
+ * 1 on success
*/
int
fsr_dev(DEVICE *dev, int num)
if (dev->fd < 0) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to fsr_dev. Archive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ return 0;
}
- if (!(dev->state & ST_TAPE)) {
+ if (!(dev_state(dev, ST_TAPE))) {
return 0;
}
Dmsg0(29, "fsr_dev\n");
dev->dev_name, strerror(dev->dev_errno));
}
update_pos_dev(dev);
- return stat;
+ return stat == 0 ? 1 : 0;
}
/*
* Backward space a record
- * Returns: 0 on success
- * -1 on failure
+ * Returns: 0 on failure
+ * 1 on success
*/
int
bsr_dev(DEVICE *dev, int num)
if (dev->fd < 0) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to bsr_dev. Archive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
- return -1;
+ return 0;
}
if (!(dev->state & ST_TAPE)) {
dev->dev_name, strerror(dev->dev_errno));
}
update_pos_dev(dev);
- return stat;
+ return stat == 0 ? 1 : 0;
+}
+
+/*
+ * Reposition the device to file, block
+ * Currently only works for tapes.
+ * Returns: 0 on failure
+ * 1 on success
+ */
+int
+reposition_dev(DEVICE *dev, uint32_t file, uint32_t block)
+{
+ if (dev->fd < 0) {
+ dev->dev_errno = EBADF;
+ Mmsg0(&dev->errmsg, _("Bad call to reposition_dev. Archive not open\n"));
+ Emsg0(M_FATAL, 0, dev->errmsg);
+ return 0;
+ }
+
+ if (!(dev_state(dev, ST_TAPE))) {
+ return 0;
+ }
+ Dmsg4(100, "reposition_dev from %u:%u to %u:%u\n",
+ dev->file, dev->block_num, file, block);
+ if (file < dev->file) {
+ Dmsg0(100, "Rewind_dev\n");
+ if (!rewind_dev(dev)) {
+ return 0;
+ }
+ }
+ if (file > dev->file) {
+ Dmsg1(100, "fsf %d\n", file-dev->file);
+ if (!fsf_dev(dev, file-dev->file)) {
+ return 0;
+ }
+ }
+ if (block < dev->block_num) {
+ bsf_dev(dev, 1);
+ fsf_dev(dev, 1);
+ }
+ if (block > dev->block_num) {
+ /* Ignore errors as Bacula can read to the correct block */
+ Dmsg1(100, "fsr %d\n", block-dev->block_num);
+ fsr_dev(dev, block-dev->block_num);
+ }
+ return 1;
}
if (dev->fd < 0) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to weof_dev. Archive drive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
return -1;
}
mt_com.mt_count = num;
stat = ioctl(dev->fd, MTIOCTOP, (char *)&mt_com);
if (stat == 0) {
- dev->file++;
+ dev->file += num;
dev->file_addr = 0;
} else {
clrerror_dev(dev, MTWEOF);
+ if (stat == -1) {
Mmsg2(&dev->errmsg, _("ioctl MTWEOF error on %s. ERR=%s.\n"),
dev->dev_name, strerror(dev->dev_errno));
+ }
}
return stat;
}
}
if (errno == ENOTTY || errno == ENOSYS) { /* Function not implemented */
switch (func) {
- case -1:
- Emsg0(M_ABORT, 0, "Got ENOTTY on read/write!\n");
- break;
- case MTWEOF:
- msg = "WTWEOF";
- dev->capabilities &= ~CAP_EOF; /* turn off feature */
- break;
+ case -1:
+ Emsg0(M_ABORT, 0, "Got ENOTTY on read/write!\n");
+ break;
+ case MTWEOF:
+ msg = "WTWEOF";
+ dev->capabilities &= ~CAP_EOF; /* turn off feature */
+ break;
#ifdef MTEOM
- case MTEOM:
- msg = "WTEOM";
- dev->capabilities &= ~CAP_EOM; /* turn off feature */
- break;
+ case MTEOM:
+ msg = "WTEOM";
+ dev->capabilities &= ~CAP_EOM; /* turn off feature */
+ break;
#endif
- case MTFSF:
- msg = "MTFSF";
- dev->capabilities &= ~CAP_FSF; /* turn off feature */
- break;
- case MTBSF:
- msg = "MTBSF";
- dev->capabilities &= ~CAP_BSF; /* turn off feature */
- break;
- case MTFSR:
- msg = "MTFSR";
- dev->capabilities &= ~CAP_FSR; /* turn off feature */
- break;
- case MTBSR:
- msg = "MTBSR";
- dev->capabilities &= ~CAP_BSR; /* turn off feature */
- break;
- default:
- msg = "Unknown";
- break;
+ case MTFSF:
+ msg = "MTFSF";
+ dev->capabilities &= ~CAP_FSF; /* turn off feature */
+ break;
+ case MTBSF:
+ msg = "MTBSF";
+ dev->capabilities &= ~CAP_BSF; /* turn off feature */
+ break;
+ case MTFSR:
+ msg = "MTFSR";
+ dev->capabilities &= ~CAP_FSR; /* turn off feature */
+ break;
+ case MTBSR:
+ msg = "MTBSR";
+ dev->capabilities &= ~CAP_BSR; /* turn off feature */
+ break;
+ default:
+ msg = "Unknown";
+ break;
}
if (msg != NULL) {
dev->dev_errno = ENOSYS;
static void do_close(DEVICE *dev)
{
- Dmsg0(29, "really close_dev\n");
- close(dev->fd);
+ Dmsg1(29, "really close_dev %s\n", dev->dev_name);
+ if (dev->fd >= 0) {
+ close(dev->fd);
+ }
/* Clean up device packet so it can be reused */
dev->fd = -1;
dev->state &= ~(ST_OPENED|ST_LABEL|ST_READ|ST_APPEND|ST_EOT|ST_WEOT|ST_EOF);
stop_thread_timer(dev->tid);
dev->tid = 0;
}
+ dev->use_count = 0;
}
/*
close_dev(DEVICE *dev)
{
if (!dev) {
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to close_dev. Archive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
return;
}
if (dev->fd >= 0 && dev->use_count == 1) {
do_close(dev);
+ } else if (dev->use_count > 0) {
+ dev->use_count--;
}
- dev->use_count--;
+
+#ifdef FULL_DEBUG
+ ASSERT(dev->use_count >= 0);
+#endif
}
/*
- * Used when unmounting the device
+ * Used when unmounting the device, ignore use_count
*/
void force_close_dev(DEVICE *dev)
{
if (!dev) {
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to force_close_dev. Archive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
return;
}
- Dmsg0(29, "really close_dev\n");
+ Dmsg1(29, "Force close_dev %s\n", dev->dev_name);
do_close(dev);
- dev->use_count--;
+
+#ifdef FULL_DEBUG
+ ASSERT(dev->use_count >= 0);
+#endif
}
int truncate_dev(DEVICE *dev)
{
if (!dev) {
dev->dev_errno = EBADF;
- Mmsg0(&dev->errmsg, _("Bad call to fsf_dev. Archive not open\n"));
+ Mmsg0(&dev->errmsg, _("Bad call to term_dev. Archive not open\n"));
Emsg0(M_FATAL, 0, dev->errmsg);
return;
}
projects / bacula / bacula / blobdiff