void format_all(const unsigned int value){
unsigned int i, j;
for(i=0; i<HDA_MAXCYLINDER; i++){
for(j=0; j<HDA_MAXSECTOR; j++){
format_sector(i, j, 0, value);
}
}
}
void format_vol(const unsigned int vol) {
unsigned int secteur, cylindre;
unsigned int fs, fc, nb_bloc;
int i;
fs = mbr.mbr_vol[vol].vol_first_sector;
fc = mbr.mbr_vol[vol].vol_first_cylinder;
nb_bloc = mbr.mbr_vol[vol].vol_n_sector;
for(i=0; i<nb_bloc; i++){
/* passage de cylindre a volume et de secteur a bloc */
secteur = (fs + i) % HDA_MAXSECTOR;
cylindre = fc + (fs + i) / HDA_MAXSECTOR;
/* revoir la valeur a mettre dans le dernier parametre */
format_sector(cylindre, secteur, 1, 0);
}
}
int main(){
int nbSec,nbCyl,cylinder,secteur,i;
if(init_hardware("hardware.ini") == 0) {
fprintf(stderr, "Error in hardware initialization\n");
exit(EXIT_FAILURE);
}
/* Interreupt handlers */
for(i=0; i<16; i++)
IRQVECTOR[i] = empty_it;
/* Allows all IT */
_mask(1);
_out(HDA_CMDREG,CMD_DSKINFO);
nbCyl=_in(HDA_DATAREGS)<<8;
nbCyl+=_in(HDA_DATAREGS+1);
nbSec=_in(HDA_DATAREGS+2)<<8;
nbSec+=_in(HDA_DATAREGS+3);
printf("Formatage du disque\n");
for(cylinder=0;cylinder<nbCyl;cylinder++)
for(secteur=0;secteur<nbSec;secteur++)
format_sector(cylinder,secteur,1,0);
return 0;
}
void format_bloc(uint vol, uint nbloc, uint value) {
uint cylinder = cylinder_of_bloc(vol, nbloc);
uint sector = sector_of_bloc(vol, nbloc);
format_sector(cylinder, sector, value);
}
int main(int argc, char** argv) {
/* Variable declaration */
unsigned char* buffer;
int free_size = 0, count = 0, i, j;
/* Variable initialization */
srand(time(NULL));
buffer = (unsigned char*) malloc(HDA_SECTORSIZE * sizeof(unsigned char));
/* Check the usage of the main program */
cmdname = argv[0];
processtype = argv[1];
if (argc == 1) {
usage();
return EXIT_FAILURE;
}
/* Only disk creation */
if(strcmp(processtype, "mkhd") == 0) {
/* Delete the old disks */
remove("vdiskA.bin");
remove("vdiskB.bin");
/* New disk initialization */
init_master();
printf("The disks have been successfully created.\n");
return EXIT_SUCCESS;
}
/* Disk initialization */
init_master();
/* Load master boot record and partition information */
load_mbr();
init_volume();
/* Get the status of the disk (free space) */
if (strcmp(processtype, "status") == 0) {
if (!load_super(CURRENT_VOL)) {
fprintf(stderr, "No file system on the chosen partition\n");
return EXIT_FAILURE;
}
printf("Space status of the volume : %s \n", current_super.super_name);
free_size = mbr.mbr_vol[CURRENT_VOL].vol_n_sector - 1;
double percent = (current_super.super_nb_free / (double) free_size)
* 100;
printf("Free space : %f %\n", percent);
printf("Free blocs : %d\n", current_super.super_nb_free);
return EXIT_SUCCESS;
}
/* Fill the partition */
if (strcmp(processtype, "debug_fill") == 0) {
printf("Filling the current partition\n");
if (!load_super(CURRENT_VOL)) {
fprintf(stderr, "No file system on the chosen partition\n");
return EXIT_FAILURE;
}
int b;
do {
b = new_bloc();
if(b != BLOC_NULL) {
count++;
printf(".");
fflush(stdout);
}
} while (b != 0);
printf("\n");
printf("Number of allocated blocs : %d\n", count);
return EXIT_SUCCESS;
}
/* Random free of the partition */
if (strcmp(processtype, "debug_free") == 0) {
unsigned size = mbr.mbr_vol[CURRENT_VOL].vol_n_sector - 1;
unsigned begin = mbr.mbr_vol[CURRENT_VOL].vol_first_sector;
int it = begin + size;
int n;
count = 0;
if (!load_super(CURRENT_VOL)) {
fprintf(stderr, "No file system on the chosen partition\n");
return EXIT_FAILURE;
}
/* Check if the partition is empty */
if(current_super.super_nb_free == size) {
fprintf(stderr, "No bloc to free, the current partition is empty.\n");
return EXIT_FAILURE;
}
/* Random free of the partition blocs */
for (n = begin; n < it / 10; n++) {
int random = rand() % it;
if(random == 0) continue;
free_bloc(random);
printf("%d\n", random);
count++;
}
printf("Number of desallocated blocs : %d\n", count);
return EXIT_SUCCESS;
}
/* Make a new filesystem */
if (strcmp(processtype, "mknfs") == 0) {
init_super(CURRENT_VOL);
printf("A new file system has been successfully installed on the current partition N°%d.\n", CURRENT_VOL);
return EXIT_SUCCESS;
}
/* Process to format the entire disk */
if (strcmp(processtype, "frmt") == 0) {
for (i = 0; i < HDA_MAXCYLINDER; i++) {
for (j = 0; j < HDA_MAXSECTOR; j++) {
format_sector(i, j, HDA_SECTORSIZE, 0);
}
}
printf("The entire disk has been successfully formated.\n");
return EXIT_SUCCESS;
}
/* Process to dump the content of the first sector */
if (strcmp(processtype, "dmps") == 0) {
read_sector_n(0, 0, HDA_SECTORSIZE, buffer);
dump(buffer, HDA_SECTORSIZE, 0, 1);
return EXIT_SUCCESS;
}
/* Process type unknown */
usage();
return EXIT_FAILURE;
}
void format_block(int vol, int block, int value){
format_sector(cylinder_of_block(vol, block),
sector_of_block(vol, block),
value);
return;
}
