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Centralized interpretation of SCSI command outcome

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This commit is contained in:
Thomas Schmitt
2010-09-14 12:50:06 +00:00
parent 4cc524097b
commit c1f4063193
7 changed files with 198 additions and 38 deletions
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37
libburn/sg-solaris.c
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@ -565,12 +565,17 @@ int sg_release(struct burn_drive *d)
*/
int sg_issue_command(struct burn_drive *d, struct command *c)
{
int i, usleep_time, timeout_ms, no_retry = 0, ret, key, asc, ascq;
int i, timeout_ms, ret, key, asc, ascq, done = 0;
time_t start_time;
struct uscsi_cmd cgc;
char msg[80];
static FILE *fp = NULL;
#define Libburn_use_scsi_eval_cmd_outcomE yes
#ifndef Libburn_use_scsi_eval_cmd_outcomE
int usleep_time, no_retry = 0;
#endif
c->error = 0;
memset(c->sense, 0, sizeof(c->sense));
if (d->fd == -1)
@ -616,7 +621,7 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
/* retry-loop */
start_time = time(NULL);
timeout_ms = 200000;
for(i = 0; ; i++) {
for(i = 0; !done; i++) {
ret = ioctl(d->fd, USCSICMD, &cgc);
@ -639,6 +644,25 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
return -1;
}
#ifdef Libburn_use_scsi_eval_cmd_outcomE
/* >>> Should replace "18" by realistic sense length.
What's about following older remark ?
*/
/* >>> valid sense: cgc.uscsi_rqlen - cgc.uscsi_rqresid */;
spc_decode_sense(c->sense, 0, &key, &asc, &ascq);
if (key || asc || ascq) {
done = scsi_eval_cmd_outcome(d, c, fp, c->sense, 18, 0,
start_time, timeout_ms, i, 2);
} else
done = 1;
#else /* Libburn_use_scsi_eval_cmd_outcomE */
/* >>> valid sense: cgc.uscsi_rqlen - cgc.uscsi_rqresid */;
spc_decode_sense(c->sense, 0, &key, &asc, &ascq);
@ -681,15 +705,24 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
usleep(usleep_time);
} else
break; /* retry-loop */
#endif /* ! Libburn_use_scsi_eval_cmd_outcomE */
} /* end of retry-loop */
#ifndef Libburn_use_scsi_eval_cmd_outcomE
ex:;
if (c->error)
scsi_notify_error(d, c, c->sense, 18, 0);
if (burn_sg_log_scsi & 3)
/* >>> Need own duration time measurement. Then remove bit1 */
scsi_log_err(c, fp, c->sense, 18, 0, (c->error != 0) | 2);
#endif /* ! Libburn_use_scsi_eval_cmd_outcomE */
return 1;
}