uint32_t DEVICE::get_block_num()
{
if (is_dvd() || is_tape()) {
return block_num;
} else {
return VolCatInfo.VolCatAdataBlocks + VolCatInfo.VolCatAmetaBlocks;
}
}
uint32_t DEVICE::get_file()
{
if (is_dvd() || is_tape()) {
return file;
} else {
uint64_t bytes = VolCatInfo.VolCatAdataBytes + VolCatInfo.VolCatAmetaBytes;
return (uint32_t)(bytes >> 32);
}
}
/*
* Called to indicate that we have just read an
* EOF from the device.
*/
void DEVICE::set_ateof()
{
set_eof();
if (is_tape()) {
file++;
}
file_addr = 0;
file_size = 0;
block_num = 0;
}
/*
* Open the device with the operating system and
* initialize buffer pointers.
*
* Returns: true on success
* false on error
*
* Note, for a tape, the VolName is the name we give to the
* volume (not really used here), but for a file, the
* VolName represents the name of the file to be created/opened.
* In the case of a file, the full name is the device name
* (archive_name) with the VolName concatenated.
*/
bool DEVICE::open(DCR *dcr, int omode)
{
int preserve = 0;
if (is_open()) {
if (openmode == omode) {
return true;
} else {
Dmsg1(200, "Close fd=%d for mode change in open().\n", m_fd);
d_close(m_fd);
clear_opened();
preserve = state & (ST_LABEL|ST_APPEND|ST_READ);
}
}
if (dcr) {
dcr->setVolCatName(dcr->VolumeName);
VolCatInfo = dcr->VolCatInfo; /* structure assign */
}
state &= ~(ST_NOSPACE|ST_LABEL|ST_APPEND|ST_READ|ST_EOT|ST_WEOT|ST_EOF);
label_type = B_BACULA_LABEL;
if (is_tape() || is_fifo()) {
open_tape_device(dcr, omode);
} else if (is_ftp()) {
open_device(dcr, omode);
} else {
Dmsg1(100, "call open_file_device mode=%s\n", mode_to_str(omode));
open_file_device(dcr, omode);
}
state |= preserve; /* reset any important state info */
Dmsg2(100, "preserve=0x%x fd=%d\n", preserve, m_fd);
Dmsg7(100, "open dev: fd=%d dev=%p dcr=%p vol=%s type=%d dev_name=%s mode=%s\n",
m_fd, getVolCatName(), this, dcr, dev_type, print_name(), mode_to_str(omode));
return m_fd >= 0;
}
/*
* If implemented in system, clear the tape
* error status.
*/
void DEVICE::clrerror(int func)
{
const char *msg = NULL;
char buf[100];
dev_errno = errno; /* save errno */
if (errno == EIO) {
VolCatInfo.VolCatErrors++;
}
if (!is_tape()) {
return;
}
if (errno == ENOTTY || errno == ENOSYS) { /* Function not implemented */
switch (func) {
case -1:
break; /* ignore message printed later */
case MTWEOF:
msg = "WTWEOF";
clear_cap(CAP_EOF); /* turn off feature */
break;
#ifdef MTEOM
case MTEOM:
msg = "WTEOM";
clear_cap(CAP_EOM); /* turn off feature */
break;
#endif
case MTFSF:
msg = "MTFSF";
clear_cap(CAP_FSF); /* turn off feature */
break;
case MTBSF:
msg = "MTBSF";
clear_cap(CAP_BSF); /* turn off feature */
break;
case MTFSR:
msg = "MTFSR";
clear_cap(CAP_FSR); /* turn off feature */
break;
case MTBSR:
msg = "MTBSR";
clear_cap(CAP_BSR); /* turn off feature */
break;
case MTREW:
msg = "MTREW";
break;
#ifdef MTSETBLK
case MTSETBLK:
msg = "MTSETBLK";
break;
#endif
#ifdef MTSETDRVBUFFER
case MTSETDRVBUFFER:
msg = "MTSETDRVBUFFER";
break;
#endif
#ifdef MTRESET
case MTRESET:
msg = "MTRESET";
break;
#endif
#ifdef MTSETBSIZ
case MTSETBSIZ:
msg = "MTSETBSIZ";
break;
#endif
#ifdef MTSRSZ
case MTSRSZ:
msg = "MTSRSZ";
break;
#endif
#ifdef MTLOAD
case MTLOAD:
msg = "MTLOAD";
break;
#endif
#ifdef MTUNLOCK
case MTUNLOCK:
msg = "MTUNLOCK";
break;
#endif
case MTOFFL:
msg = "MTOFFL";
break;
default:
bsnprintf(buf, sizeof(buf), _("unknown func code %d"), func);
msg = buf;
break;
}
if (msg != NULL) {
dev_errno = ENOSYS;
Mmsg1(errmsg, _("I/O function \"%s\" not supported on this device.\n"), msg);
Emsg0(M_ERROR, 0, errmsg);
}
}
/*
* Now we try different methods of clearing the error
* status on the drive so that it is not locked for
* further operations.
*/
/* On some systems such as NetBSD, this clears all errors */
get_os_tape_file();
/* Found on Solaris */
#ifdef MTIOCLRERR
{
d_ioctl(m_fd, MTIOCLRERR);
Dmsg0(200, "Did MTIOCLRERR\n");
}
#endif
/* Typically on FreeBSD */
#ifdef MTIOCERRSTAT
{
berrno be;
/* Read and clear SCSI error status */
union mterrstat mt_errstat;
Dmsg2(200, "Doing MTIOCERRSTAT errno=%d ERR=%s\n", dev_errno,
be.bstrerror(dev_errno));
d_ioctl(m_fd, MTIOCERRSTAT, (char *)&mt_errstat);
}
#endif
/* Clear Subsystem Exception TRU64 */
#ifdef MTCSE
{
struct mtop mt_com;
mt_com.mt_op = MTCSE;
mt_com.mt_count = 1;
/* Clear any error condition on the tape */
d_ioctl(m_fd, MTIOCTOP, (char *)&mt_com);
Dmsg0(200, "Did MTCSE\n");
}
#endif
}
