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Improved drive capacity estimation for sparse regular files

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This commit is contained in:
Thomas Schmitt
2014-06-10 07:37:40 +00:00
parent 61e2176d03
commit ca532f7623
13 changed files with 78 additions and 26 deletions
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22
libburn/sg-linux.c
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@ -2169,6 +2169,24 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
c->end_time = burn_get_time(0);
/*
# de fine Libburn_ff_netbsd_mockuP
*/
#ifdef Libburn_ff_netbsd_mockuP
if (c->opcode[0] == 0x5a) {
sprintf(msg, "Libburn_ff_netbsd_mockuP : Emulating zero reply from SCSI command 5A");
if (burn_sg_log_scsi & 3)
scsi_log_message(d, fp, msg, 0);
libdax_msgs_submit(libdax_messenger,
d->global_index, 0x00000002,
LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
msg, 0, 0);
memset(c->page->data, 0, c->page->bytes);
c->error = 1;
c->dxfer_len = 0;
}
#endif
/* ts A61010 */
/* a ssert(err != -1); */
if (err == -1) {
@ -2353,7 +2371,7 @@ int burn_os_is_2k_seekrw(char *path, int flag)
0 = could not estimate size capacity of file object
1 = estimation has been made, bytes was set
*/
int burn_os_stdio_capacity(char *path, off_t *bytes)
int burn_os_stdio_capacity(char *path, off_t write_start, off_t *bytes)
{
struct stat stbuf;
struct statvfs vfsbuf;
@ -2386,7 +2404,7 @@ int burn_os_stdio_capacity(char *path, off_t *bytes)
{ret = -2; goto ex;}
*bytes = ((off_t) blocks) * (off_t) 512;
} else if(S_ISREG(stbuf.st_mode)) {
add_size = stbuf.st_blocks * (off_t) 512;
add_size = burn_sparse_file_addsize(write_start, &stbuf);
strcpy(testpath, path);
} else
{ret = 0; goto ex;}