Evaluating readability of media
This commit is contained in:
parent
1fd02ceba2
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0f0a2e4bb5
@ -2800,6 +2800,198 @@ int Permstack_pop(struct PermiteM **o, struct PermiteM *stopper,
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/* ---------------------------- End PermstacK ----------------------------- */
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/* ------------------------------ SpotlisT -------------------------------- */
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struct SpotlistiteM {
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int start_lba;
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int blocks;
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int quality;
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struct SpotlistiteM *next;
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};
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int Spotlistitem_new(struct SpotlistiteM **o, int start_lba, int blocks,
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int quality, int flag)
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{
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struct SpotlistiteM *m;
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m= TSOB_FELD(struct SpotlistiteM,1);
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if(m==NULL)
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return(-1);
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*o= m;
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m->start_lba= start_lba;
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m->blocks= blocks;
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m->quality= quality;
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m->next= NULL;
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return(1);
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}
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int Spotlistitem_destroy(struct SpotlistiteM **o, int flag)
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{
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if((*o) == NULL)
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return(0);
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free((char *) *o);
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*o= NULL;
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return(1);
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}
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struct SpotlisT {
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struct SpotlistiteM *list_start;
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struct SpotlistiteM *list_end;
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int list_count;
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struct SpotlistiteM *current_item;
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int current_idx;
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};
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int Spotlist_new(struct SpotlisT **o, int flag)
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{
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struct SpotlisT *m;
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m= TSOB_FELD(struct SpotlisT,1);
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if(m==NULL)
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return(-1);
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*o= m;
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m->list_start= NULL;
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m->list_end= NULL;
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m->list_count= 0;
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m->current_item= NULL;
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m->current_idx= -1;
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return(1);
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}
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int Spotlist_destroy(struct SpotlisT **o, int flag)
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{
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struct SpotlisT *m;
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struct SpotlistiteM *li, *next_li;
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if((*o) == NULL)
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return(0);
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m= *o;
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for(li= m->list_start; li != NULL; li= next_li) {
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next_li= li->next;
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Spotlistitem_destroy(&li, 0);
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}
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free((char *) *o);
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*o= NULL;
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return(1);
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}
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int Spotlist_add_item(struct SpotlisT *o, int start_lba, int blocks,
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int quality, int flag)
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{
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int ret;
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struct SpotlistiteM *li;
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ret= Spotlistitem_new(&li, start_lba, blocks, quality, 0);
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if(ret <= 0)
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return(ret);
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if(o->list_end != NULL)
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o->list_end->next= li;
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o->list_end= li;
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if(o->list_start == NULL)
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o->list_start= li;
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(o->list_count)++;
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/* <<< */
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{char quality_name[80];
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fprintf(stderr, "debug: lba %10d , size %10d , quality %s\n",
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start_lba, blocks, Spotlist__quality_name(quality, quality_name, 0));
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}
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return(1);
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}
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int Spotlist_count(struct SpotlisT *o, int flag)
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{
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return o->list_count;
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}
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int Spotlist_get_item(struct SpotlisT *o, int idx,
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int *start_lba, int *blocks, int *quality, int flag)
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{
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int i;
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struct SpotlistiteM *li;
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if(idx < 0 || idx > o->list_count)
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return(0);
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if(idx == o->current_idx)
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li= o->current_item;
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else if(idx == o->current_idx) {
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li= o->current_item->next;
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} else {
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li= o->list_start;
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for(i= 0; i < idx; i++)
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li= li->next;
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}
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o->current_item= li;
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o->current_idx= idx;
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*start_lba= li->start_lba;
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*blocks= li->blocks;
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*quality= li->quality;
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return(1);
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}
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char *Spotlist__quality_name(int quality, char name[80], int flag)
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{
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if(quality == Xorriso_read_quality_gooD)
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strcpy(name, "good");
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else if(quality == Xorriso_read_quality_sloW)
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strcpy(name, "slow");
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else if(quality == Xorriso_read_quality_off_tracK)
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strcpy(name, "off track");
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else if(quality == Xorriso_read_quality_untesteD)
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strcpy(name, "untested");
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else if(quality == Xorriso_read_quality_unreadablE)
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strcpy(name, "unreadable");
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else
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sprintf(name, "0x%8.8X\n", (unsigned) quality);
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return(name);
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}
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/* ---------------------------- End SpotlisT ------------------------------ */
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/* ---------------------------- CheckmediajoB ----------------------------- */
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int Checkmediajob_new(struct CheckmediajoB **o, int flag)
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{
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struct CheckmediajoB *m;
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m= TSOB_FELD(struct CheckmediajoB,1);
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if(m==NULL)
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return(-1);
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*o= m;
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m->min_lba= -1;
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m->max_lba= -1;
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m->min_block_size= 16;
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m->mode= 1;
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m->start_time= time(NULL);
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m->time_limit= -1;
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m->item_limit= -1;
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return(1);
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}
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int Checkmediajob_destroy(struct CheckmediajoB **o, int flag)
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{
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if((*o) == NULL)
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return(0);
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free((char *) *o);
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*o= NULL;
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return(1);
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}
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/* -------------------------- End CheckmediajoB --------------------------- */
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/* ------------------------------- Xorriso -------------------------------- */
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@ -8684,6 +8876,78 @@ int Xorriso_option_cdx(struct XorrisO *xorriso, char *disk_path, int flag)
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}
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/* Option -check_media */
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int Xorriso_option_check_media(struct XorrisO *xorriso,
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int argc, char **argv, int *idx, int flag)
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{
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int ret, i, count, lba, blocks, quality;
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int end_idx, old_idx;
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char quality_name[80];
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double num;
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struct SpotlisT *spotlist= NULL;
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struct CheckmediajoB *job= NULL;
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old_idx= *idx;
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end_idx= Xorriso_end_idx(xorriso, argc, argv, *idx, 1);
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(*idx)= end_idx;
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ret= Checkmediajob_new(&job, 0);
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if(ret <= 0)
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goto ex;
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for(i= old_idx; i < end_idx; i++) {
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if(strncmp(argv[i], "max_lba=", 8) == 0 ||
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strncmp(argv[i], "min_lba=", 8) == 0) {
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num= -1;
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sscanf(argv[i] + 8, "%lf", &num);
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if(num > 0x7fffffff || num < 0)
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num= -1;
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if(strncmp(argv[i], "max_lba=", 8) == 0)
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job->max_lba= num;
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else
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job->min_lba= num;
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} else if(strncmp(argv[i], "time_limit=", 11) == 0 ||
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strncmp(argv[i], "item_limit=", 11) == 0 ) {
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num= -1;
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sscanf(argv[i] + 11, "%lf", &num);
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if(num > 0x7fffffff || num < 0)
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num= -1;
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if(strncmp(argv[i], "time_limit=", 11) == 0)
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job->time_limit= num;
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else
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job->item_limit= num;
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} else {
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sprintf(xorriso->info_text, "-check_media: Unknown option %s", argv[i]);
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
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ret= 0; goto ex;
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}
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}
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ret= Xorriso_check_media(xorriso, &spotlist, job, 0);
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if(ret <= 0)
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goto ex;
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sprintf(xorriso->result_line,
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"MCL layout : lba , size , quality\n");
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Xorriso_result(xorriso,0);
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count= Spotlist_count(spotlist, 0);
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for(i= 0; i < count; i++) {
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ret= Spotlist_get_item(spotlist, i, &lba, &blocks, &quality, 0);
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if(ret <= 0)
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continue;
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sprintf(xorriso->result_line, "MCL item : %10d , %10d , %s\n",
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lba, blocks, Spotlist__quality_name(quality, quality_name, 0));
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Xorriso_result(xorriso,0);
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}
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ret= 1;
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ex:;
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Spotlist_destroy(&spotlist, 0);
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Checkmediajob_destroy(&job, 0);
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return(ret);
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}
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/* Option -chgrp alias -chgrpi , chgrp_r alias chgrpi */
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/* @param flag bit0=recursive (-chgrp_r)
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*/
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@ -10181,6 +10445,12 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
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" -paste_in iso_rr_path disk_path byte_offset byte_count",
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" Copy ISO file content into a byte interval of a disk file.",
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"",
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"Evaluation of readability:",
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" -check_media [options] --",
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" Try to read data blocks from media and report about the",
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" outcome. Several options modify the behavior:",
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" min_lba= , max_lba= , time_limit= , item_limit=",
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"",
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"Compatibility emulation (argument list may be ended by --):",
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" -as mkisofs [-help|-version|-o|-R|-J|-V|-P|-f|-m|-exclude-list|-no-pad|",
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" -M|-C|-graft-points|-path-list|pathspecs]",
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@ -12233,7 +12503,8 @@ int Xorriso_count_args(struct XorrisO *xorriso, int argc, char **argv,
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""
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};
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static char argn_commands[][40]= {
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"add","as","chgrp","chgrpi","chgrp_r","chgrp_ri","chmod","chmodi",
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"add","as",
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"check_media","chgrp","chgrpi","chgrp_r","chgrp_ri","chmod","chmodi",
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"chmod_r","chmod_ri","chown","chowni","chown_r","chown_ri",
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"compare_l","cpr","cpri","cp_rax","cp_rx","cpax","cpx",
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"du","dui","dus","dusi","dux","dusx","extract_l","find","findi","findx",
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@ -12398,6 +12669,9 @@ next_command:;
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(*idx)++;
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ret= Xorriso_option_cdx(xorriso, arg1, 0);
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} else if(strcmp(cmd,"check_media")==0) {
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ret= Xorriso_option_check_media(xorriso, argc, argv, idx, 0);
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} else if(strcmp(cmd,"chgrp")==0 || strcmp(cmd,"chgrpi")==0) {
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(*idx)+= 1;
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ret= Xorriso_option_chgrpi(xorriso, arg1, argc, argv, idx, 0);
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@ -48,6 +48,8 @@
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struct LinkiteM; /* Trace of hops during symbolic link resolution */
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struct ExclusionS; /* List of -not_* conditions */
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struct PermiteM; /* Stack of temporarily altered access permissions */
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struct SpotlisT; /* List of intervals with different read qualities */
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struct CheckmediajoB; /* Parameters for Xorriso_check_media() */
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/* maximum number of history lines to be reported with -status:long_history */
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@ -614,5 +616,31 @@ int Permstack_pop(struct PermiteM **o, struct PermiteM *stopper,
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struct XorrisO *xorriso, int flag);
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int Spotlist_new(struct SpotlisT **o, int flag);
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int Spotlist_destroy(struct SpotlisT **o, int flag);
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int Spotlist_add_item(struct SpotlisT *o, int start_lba, int blocks,
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int quality, int flag);
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int Spotlist_count(struct SpotlisT *o, int flag);
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int Spotlist_get_item(struct SpotlisT *o, int idx,
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int *start_lba, int *blocks, int *quality, int flag);
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char *Spotlist__quality_name(int quality, char name[80], int flag);
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#define Xorriso_read_quality_gooD 0x7fffffff
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#define Xorriso_read_quality_sloW 0x40000000
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#define Xorriso_read_quality_off_tracK 0x08000000
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#define Xorriso_read_quality_untesteD 0x04000000
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#define Xorriso_read_quality_unreadablE 0x00000000
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int Checkmediajob_new(struct CheckmediajoB **o, int flag);
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int Checkmediajob_destroy(struct CheckmediajoB **o, int flag);
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#endif /* Xorriso_private_includeD */
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@ -1 +1 @@
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#define Xorriso_timestamP "2008.08.09.160947"
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#define Xorriso_timestamP "2008.08.09.161311"
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@ -6557,3 +6557,188 @@ int Xorriso_msinfo(struct XorrisO *xorriso, int *msc1, int *msc2, int flag)
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return(1);
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}
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int Xorriso_check_interval(struct XorrisO *xorriso, struct SpotlisT *spotlist,
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struct CheckmediajoB *job,
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int from_lba, int block_count,
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int read_chunk, int min_block_size, int flag)
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{
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int i, ret, total_count= 0;
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int prev_quality= -1, quality= -1;
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int start_lba= 0;
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struct burn_drive *drive;
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struct burn_drive_info *dinfo;
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char data[64*1024];
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off_t data_count, to_read;
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double pre_read_time, post_read_time, time_diff, total_time_diff= 0;
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ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
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"on attempt to check media readability", 0);
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if(ret<=0)
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goto ex;
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start_lba= from_lba;
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for(i= 0; i < block_count; i+= read_chunk) {
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if(job->item_limit > 0 &&
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Spotlist_count(spotlist, 0) + 2 >= job->item_limit) {
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sprintf(xorriso->info_text, "-check_media: Reached item_limit=%d",
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job->item_limit);
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
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goto abort_check;
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}
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pre_read_time= Sfile_microtime(0);
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if(job->time_limit > 0
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&& job->start_time + job->time_limit < pre_read_time) {
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sprintf(xorriso->info_text, "-check_media: Reached time_limit=%d",
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job->time_limit);
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Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
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abort_check:;
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if(prev_quality >= 0) {
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ret= Spotlist_add_item(spotlist, start_lba, i + from_lba - start_lba,
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prev_quality, 0);
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if(ret <= 0)
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goto ex;
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}
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ret= Spotlist_add_item(spotlist, i + from_lba, block_count - 1,
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Xorriso_read_quality_untesteD, 0);
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if(ret > 0)
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ret= 2;
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goto ex;
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}
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to_read= read_chunk;
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if(i + to_read > block_count)
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to_read= block_count - i;
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ret= burn_read_data(drive, ((off_t) (i + from_lba)) * (off_t) 2048, data,
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to_read * (off_t) 2048, &data_count, 4);
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post_read_time= Sfile_microtime(0);
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time_diff= post_read_time - pre_read_time;
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total_time_diff+= time_diff;
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total_count++;
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if(ret <= 0) {
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Xorriso_process_msg_queues(xorriso,0);
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quality= Xorriso_read_quality_unreadablE;
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if(read_chunk > min_block_size) {
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/* >>> evaluate min blocks */;
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}
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} else {
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quality= Xorriso_read_quality_gooD;
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/* >>> find better threshold than 1.0 */
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if(time_diff > 1.0 && i > 0)
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quality= Xorriso_read_quality_sloW;
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}
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if(quality != prev_quality) {
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if(prev_quality >= 0) {
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ret= Spotlist_add_item(spotlist, start_lba, i + from_lba - start_lba,
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prev_quality, 0);
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if(ret <= 0)
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goto ex;
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}
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start_lba= i + from_lba;
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prev_quality= quality;
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}
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xorriso->pacifier_count+= to_read;
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if(post_read_time - xorriso->last_update_time >= xorriso->pacifier_interval)
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Xorriso_pacifier_callback(xorriso, "sectors examined",
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xorriso->pacifier_count, xorriso->pacifier_total, "", 0);
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}
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if(prev_quality >= 0) {
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ret= Spotlist_add_item(spotlist, start_lba,
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block_count + from_lba - start_lba, prev_quality, 0);
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if(ret <= 0)
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goto ex;
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}
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/* <<< for calibration of quality */
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if(total_count > 0) {
|
||||
sprintf(xorriso->info_text, "Xorriso_check_interval: %.1f s / %d = %f",
|
||||
total_time_diff, total_count, total_time_diff / total_count);
|
||||
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
|
||||
}
|
||||
|
||||
ret= 1;
|
||||
ex:
|
||||
return(ret);
|
||||
}
|
||||
|
||||
|
||||
int Xorriso_check_media(struct XorrisO *xorriso, struct SpotlisT **spotlist,
|
||||
struct CheckmediajoB *job, int flag)
|
||||
{
|
||||
int media_blocks= 0, read_chunk= 16, ret, mode, min_block_size, start_lba= 0;
|
||||
int blocks;
|
||||
struct burn_drive *drive;
|
||||
struct burn_drive_info *dinfo;
|
||||
struct isoburn_toc_disc *isoburn_disc= NULL;
|
||||
|
||||
*spotlist= NULL;
|
||||
|
||||
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
|
||||
"on attempt to check media readability", 0);
|
||||
if(ret<=0)
|
||||
goto ex;
|
||||
|
||||
/* >>> determine media type dependent blocking factor:
|
||||
2 kB for CD and disk , 32 kB for DVD, 64 kB for BD
|
||||
eventually adjust min_block_size and read_chunk
|
||||
*/;
|
||||
/* <<< */
|
||||
min_block_size= read_chunk;
|
||||
|
||||
ret= Spotlist_new(spotlist, 0);
|
||||
if(ret <= 0)
|
||||
{ret= -1; goto ex;}
|
||||
|
||||
Xorriso_pacifier_reset(xorriso, 0);
|
||||
job->start_time= time(NULL);
|
||||
mode= job->mode;
|
||||
if(job->min_lba >= 0)
|
||||
start_lba= job->min_lba;
|
||||
if(job->max_lba >= 0) {
|
||||
blocks= job->max_lba - start_lba;
|
||||
xorriso->pacifier_total= blocks;
|
||||
ret= Xorriso_check_interval(xorriso, *spotlist, job, start_lba, blocks,
|
||||
read_chunk, min_block_size, 0);
|
||||
if(ret <= 0)
|
||||
goto ex;
|
||||
|
||||
} else if(mode == 0) {
|
||||
|
||||
/* >>> track by track */;
|
||||
|
||||
} else if(mode == 1) {
|
||||
isoburn_disc= isoburn_toc_drive_get_disc(drive);
|
||||
if(isoburn_disc == NULL) {
|
||||
no_content_visible:;
|
||||
Xorriso_process_msg_queues(xorriso,0);
|
||||
sprintf(xorriso->info_text, "No content detected on media");
|
||||
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
|
||||
{ret= 0; goto ex;}
|
||||
}
|
||||
blocks= media_blocks= isoburn_toc_disc_get_sectors(isoburn_disc);
|
||||
if(start_lba >= 0)
|
||||
blocks-= start_lba;
|
||||
if(media_blocks <= 0)
|
||||
goto no_content_visible;
|
||||
xorriso->pacifier_total= blocks;
|
||||
ret= Xorriso_check_interval(xorriso, *spotlist, job, start_lba, blocks,
|
||||
read_chunk, min_block_size, 0);
|
||||
if(ret <= 0)
|
||||
goto ex;
|
||||
} else if(mode == 2) {
|
||||
|
||||
/* >>> single sweep over libburn media capacity */;
|
||||
|
||||
}
|
||||
|
||||
Xorriso_pacifier_callback(xorriso, "sectors examined",
|
||||
xorriso->pacifier_count, xorriso->pacifier_total, "", 1);
|
||||
ret= 1;
|
||||
ex:;
|
||||
if(ret < 0)
|
||||
Spotlist_destroy(spotlist, 0);
|
||||
return(ret);
|
||||
}
|
||||
|
||||
@ -16,6 +16,7 @@
|
||||
|
||||
struct XorrisO;
|
||||
struct FindjoB;
|
||||
struct SpotlisT;
|
||||
|
||||
/* The minimum version of libisoburn to be used with this version of xorriso
|
||||
*/
|
||||
@ -280,5 +281,27 @@ int Xorriso_libburn_adr(struct XorrisO *xorriso, char *address_string,
|
||||
int Xorriso_msinfo(struct XorrisO *xorriso, int *msc1, int *msc2, int flag);
|
||||
|
||||
|
||||
struct CheckmediajoB {
|
||||
int min_lba; /* if >=0 : begin checking at this address */
|
||||
int max_lba; /* if >=0 : read up to this address, else use mode */
|
||||
|
||||
int min_block_size; /* >>> not yet implemented:
|
||||
granularity desired by user
|
||||
*/
|
||||
int mode; /* >>> 0= track by track
|
||||
1= single sweep over libisoburn media capacity
|
||||
>>> 2= single sweep over libburn media capacity
|
||||
*/
|
||||
time_t start_time;
|
||||
int time_limit; /* Number of seconds after which to abort */
|
||||
|
||||
int item_limit; /* Maximum number of media check list items as result */
|
||||
|
||||
};
|
||||
|
||||
int Xorriso_check_media(struct XorrisO *xorriso, struct SpotlisT **spotlist,
|
||||
struct CheckmediajoB *job, int flag);
|
||||
|
||||
|
||||
#endif /* Xorrisoburn_includeD */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user