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Implemented sg_close_drive_fd (ticket 74)

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This commit is contained in:
Thomas Schmitt 2006-09-25 14:09:14 +00:00
parent a27361b3b0
commit 12ad9100ff
6 changed files with 69 additions and 21 deletions
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2
cdrskin/cdrskin_timestamp.h
View File

@ -1 +1 @@
#define Cdrskin_timestamP "2006.09.25.104629"
#define Cdrskin_timestamP "2006.09.25.141035"

3
libburn/drive.c
View File

@ -42,7 +42,7 @@ void burn_drive_free(struct burn_drive *d)
return;
/* ts A60822 : close open fds before forgetting them */
if (burn_drive_is_open(d))
close(d->fd);
sg_close_drive_fd(d->devname, d->global_index, &(d->fd), 0);
free((void *) d->idata);
free((void *) d->mdata);
free((void *) d->toc_entry);
@ -879,7 +879,6 @@ int burn_drive_convert_fs_adr(char *path, char adr[])
{
int ret;
struct stat stbuf;
char msg[4096];
burn_drive_adr_debug_msg("burn_drive_convert_fs_adr( %s )", path);
if(burn_drive_is_enumerable_adr(path)) {

13
libburn/libdax_msgs.c
View File

@ -284,9 +284,12 @@ int libdax_msgs_submit(struct libdax_msgs *m, int driveno, int error_code,
sprintf(sev_text,"%s : ",sev_name);
fprintf(stderr,"%s%s%s\n",m->print_id,sev_text,textpt);
if(os_errno!=0)
if(os_errno!=0) {
error_buf[0]= 0;
strerror_r(os_errno, error_buf,1024);
fprintf(stderr,"%s( Most recent system error: %d '%s' )\n",
m->print_id,os_errno,strerror_r(os_errno, error_buf,1024));
m->print_id,os_errno,error_buf);
}
}
if(severity < m->queue_severity)
@ -312,6 +315,12 @@ int libdax_msgs_submit(struct libdax_msgs *m, int driveno, int error_code,
m->youngest= item;
m->count++;
libdax_msgs_unlock(m,0);
/*
fprintf(stderr,"libdax_experimental: message submitted to queue (now %d)\n",
m->count);
*/
return(1);
failed:;
libdax_msgs_item_destroy(&item,0);

4
libburn/libdax_msgs.h
View File

@ -278,6 +278,7 @@ Range "libdax_msgs" : 0x00000000 to 0x0000ffff
0x00000000 (ALL,ZERO) = Initial setting in new libdax_msgs_item
0x00000001 (DEBUG,ZERO) = Test error message
0x00000002 (DEBUG,ZERO) = Debugging message
------------------------------------------------------------------------------
@ -289,6 +290,9 @@ Range "elmom" : 0x00010000 to 0x0001ffff
Range "scdbackup" : 0x00020000 to 0x0002ffff
0x00020001 (SORRY,LOW) = Cannot open busy drive
0x00020002 (SORRY,HIGH) = Encountered error when closing drive
0x00020003 (FATAL,HIGH) = Could not grab drive
------------------------------------------------------------------------------

63
libburn/sg.c
View File

@ -61,6 +61,34 @@ static int sgio_test(int fd)
}
/* ts A60925 : ticket 74 */
int sg_close_drive_fd(char *fname, int driveno, int *fd, int sorry)
{
int ret, os_errno, sevno= LIBDAX_MSGS_SEV_DEBUG;
char msg[4096+100];
if(*fd < 0)
return(0);
ret = close(*fd);
*fd = -1337;
if(ret != -1)
return 1;
os_errno= errno;
if (fname != NULL)
sprintf(msg, "Encountered error when closing drive '%s'",
fname);
else
sprintf(msg, "Encountered error when closing drive");
if (sorry)
sevno = LIBDAX_MSGS_SEV_SORRY;
libdax_msgs_submit(libdax_messenger, driveno, 0x00020002,
sevno, LIBDAX_MSGS_PRIO_HIGH, msg, os_errno, 0);
return 0;
}
/* ts A60922 ticket 33 */
/** Returns the next index number and the next enumerated drive address.
@param idx An opaque number handle. Make no own theories about it.
@ -185,17 +213,18 @@ void ata_enumerate(void)
/* not atapi */
if (!(tm.config & 0x8000) || (tm.config & 0x4000)) {
close(fd);
sg_close_drive_fd(fname, -1, &fd, 0);
continue;
}
/* if SG_IO fails on an atapi device, we should stop trying to
use hd* devices */
if (sgio_test(fd) == -1) {
close(fd);
sg_close_drive_fd(fname, -1, &fd, 0);
return;
}
close(fd);
if (sg_close_drive_fd(fname, -1, &fd, 1) <= 0)
continue;
enumerate_common(fname, -1, -1, -1, -1);
}
}
@ -254,13 +283,11 @@ void sg_enumerate(void)
}
/* found a drive */
ioctl(fd, SG_GET_SCSI_ID, &sid);
close(fd);
if (sg_close_drive_fd(fname, -1, &fd,
sid.scsi_type == TYPE_ROM ) <= 0)
continue;
if (sid.scsi_type != TYPE_ROM)
continue;
/* <<< ts A60922 (use SCSI_IOCTL_GET_IDLUN on block devices)
fprintf(stderr,"libburn experimental: SCSI triple: %d,%d,%d\n",sid.host_no,sid.scsi_id,sid.lun);
*/
enumerate_common(fname, sid.host_no, sid.channel,
sid.scsi_id, sid.lun);
}
@ -346,7 +373,7 @@ static void enumerate_common(char *fname, int host_no, int channel_no,
*/
int sg_grab(struct burn_drive *d)
{
int fd, count;
int fd, count, os_errno= 0;
/* ts A60813 */
int open_mode = O_RDWR;
@ -383,6 +410,7 @@ int sg_grab(struct burn_drive *d)
mmc_function_spy("sg_grab ----------- opening");
fd = open(d->devname, open_mode);
os_errno = errno;
} else
fd= d->fd;
@ -400,11 +428,17 @@ int sg_grab(struct burn_drive *d)
d->released = 0;
return 1;
}
burn_print(1, "could not acquire drive - already open\n");
close(fd);
libdax_msgs_submit(libdax_messenger, d->global_index,
0x00020003,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
"Could not grab drive - already in use", 0, 0);
sg_close_drive_fd(d->devname, d->global_index, &fd, 0);
d->fd = -1337;
return 0;
}
burn_print(1, "could not acquire drive\n");
libdax_msgs_submit(libdax_messenger, d->global_index, 0x00020003,
LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
"Could not grab drive", os_errno, 0);
return 0;
}
@ -428,8 +462,7 @@ int sg_release(struct burn_drive *d)
<<< debug: for tracing calls which might use open drive fds */
mmc_function_spy("sg_release ----------- closing");
close(d->fd);
d->fd = -1337;
sg_close_drive_fd(d->devname, d->global_index, &(d->fd), 0);
return 0;
}
@ -598,7 +631,7 @@ int sg_obtain_scsi_adr(char *path, int *host_no, int *channel_no,
/* http://www.tldp.org/HOWTO/SCSI-Generic-HOWTO/scsi_g_idlun.html */
ret= ioctl(fd, SCSI_IOCTL_GET_IDLUN, &idlun);
close(fd);
sg_close_drive_fd(path, -1, &fd, 0);
if (ret == -1)
return(0);
*host_no= (idlun.x>>24)&255;

3
libburn/sg.h
View File

@ -9,6 +9,9 @@ struct command;
enum response
{ RETRY, FAIL };
/* ts A60925 : ticket 74 */
int sg_close_drive_fd(char *fname, int driveno, int *fd, int sorry);
/* ts A60922 ticket 33 */
int sg_give_next_adr(int *idx, char adr[], int adr_size, int initialize);
int sg_is_enumerable_adr(char *adr);