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Evaluating read capacity with role 2 drives (regular files and block devices)

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This commit is contained in:
Thomas Schmitt 2009-09-13 09:49:50 +00:00
parent cf5fc2fa87
commit 6068c14634
2 changed files with 16 additions and 1 deletions
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2
libburn/trunk/cdrskin/cdrskin_timestamp.h
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@ -1 +1 @@
#define Cdrskin_timestamP "2009.09.11.120959"
#define Cdrskin_timestamP "2009.09.13.095055"

15
libburn/trunk/libburn/drive.c
View File

@ -1280,6 +1280,7 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
int ret = -1, fd = -1, role = 0;
/* divided by 512 it needs to fit into a signed long integer */
off_t size = ((off_t) (512 * 1024 * 1024 - 1) * (off_t) 2048);
off_t read_size = -1;
struct burn_drive *d= NULL, *regd_d;
struct stat stbuf;
@ -1292,6 +1293,16 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
ret = fstat(fd, &stbuf);
else
ret = stat(fname, &stbuf);
if (ret != -1) {
if (S_ISREG(stbuf.st_mode))
read_size = stbuf.st_size;
else if (S_ISBLK(stbuf.st_mode)) {
ret = burn_os_stdio_capacity(fname,
&read_size);
if (ret <= 0)
read_size = -1;
}
}
if (ret == -1 || S_ISBLK(stbuf.st_mode) ||
S_ISREG(stbuf.st_mode)) {
ret = burn_os_stdio_capacity(fname, &size);
@ -1350,6 +1361,10 @@ int burn_drive_grab_dummy(struct burn_drive_info *drive_infos[], char *fname)
d->current_is_supported_profile = 1;
d->block_types[BURN_WRITE_TAO] = BURN_BLOCK_MODE1;
d->block_types[BURN_WRITE_SAO] = BURN_BLOCK_SAO;
if (read_size >= 0)
/* despite its name : last valid address, not size */
d->media_read_capacity =
read_size / 2048 - !(read_size % 2048);
burn_drive_set_media_capacity_remaining(d, size);
/* >>> ? open file for a test ? (>>> beware of "-" = stdin) */;