static int
beri_cfi_disk_print(int verbose)
{
struct disk_devdesc dev;
char line[80];
int ret;
printf("%s devices:", beri_cfi_disk.dv_name);
if ((ret = pager_output("\n")) != 0)
return (ret);
snprintf(line, sizeof(line), " cfi%d CFI flash device\n", 0);
ret = pager_output(line);
if (ret != 0)
return (ret);
dev.d_dev = &beri_cfi_disk;
dev.d_unit = 0;
dev.d_slice = -1;
dev.d_partition = -1;
if (disk_open(&dev, cfi_get_mediasize(),
cfi_get_sectorsize(), 0) == 0) {
snprintf(line, sizeof(line), " cfi%d", 0);
ret = disk_print(&dev, line, verbose);
disk_close(&dev);
}
return (ret);
}
static int
beri_sdcard_disk_print(int verbose)
{
struct disk_devdesc dev;
char line[80];
int ret;
printf("%s devices:", beri_sdcard_disk.dv_name);
if ((ret = pager_output("\n")) != 0)
return (ret);
snprintf(line, sizeof(line), " sdcard%d Altera SD card drive\n", 0);
ret = pager_output(line);
if (ret != 0)
return (ret);
dev.dd.d_dev = &beri_sdcard_disk;
dev.dd.d_unit = 0;
dev.d_slice = D_SLICENONE;
dev.d_partition = D_PARTNONE;
if (disk_open(&dev, altera_sdcard_get_mediasize(),
altera_sdcard_get_sectorsize()) == 0) {
snprintf(line, sizeof(line), " sdcard%d", 0);
ret = disk_print(&dev, line, verbose);
disk_close(&dev);
}
return (ret);
}
void *sfs_init(struct fuse_conn_info *conn)
{
log_msg("Testing- log started- sfs_init()\n");
log_msg("\nsfs_init()\n");
log_conn(conn);
log_fuse_context(fuse_get_context());
disk_open(SFS_DATA->diskfile);
char *readbuf;
char *writebuf;
int status=block_read(0,&readbuf);
struct super_block* sb;
//writebuf=&sb;
if(status==0){//first time in sfs_init
sb = (struct super_block*)malloc(sizeof(struct super_block));
log_msg("Testing- first time in sfs_init\n");
sb->size=131072;
sb->nblocks=256;
sb->ninode=0;
//log_msg("%d\n",sb.nblocks);
writebuf=sb;
int write_status=block_write(0,&writebuf);
//log_msg("%d", write_status);
if(write_status>0){
log_msg("Testing- write successful %d\n",write_status);
struct super_block* testbuf;
int x=block_read(0,&testbuf);
log_msg("Read status %d\n",x);
log_msg("Block read %d\n",testbuf->size);
log_msg("Block read %d\n",testbuf->nblocks);
log_msg("Block read %d\n",testbuf->ninode);
}
}
disk_close();
//log_msg(hello_path);
//char *test="abcd";
// char *test2;
//int output=block_write(0,&test);
//output = block_read(0, &test2);
// log_msg("Block read :%s", test2);
//log_msg(output);
//disk_close();
log_msg("Testing- exiting sfs_init()\n");
return SFS_DATA;
}
void tdisk_init() {
static char init_done = 0;
int i;
if (!init_done) {
disk_open(&tdisks[0], floppyA);
disk_open(&tdisks[1], floppyB);
disk_open(&tdisks[2], floppyC);
disk_open(&tdisks[3], floppyD);
init_done = 1;
}
for (i = 0; i < 4; i++) {
tdisks[i].ptr = NULL;
tdisks[i].track =
tdisks[i].motor =
tdisks[i].inprogress = 0;
}
selected = -1;
} // tdisk_init
int disk_init() {
static char init_done = 0;
int i;
if (!init_done) {
disk_open(&disks[0], floppyA);
disk_open(&disks[1], floppyB);
disk_open(&disks[2], floppyC);
disk_open(&disks[3], floppyD);
init_done = 1;
}
for (i = 0; i < 4; i++) {
disks[i].ptr = NULL;
disks[i].track = disks[i].side =
disks[i].motor = disks[i].inprogress = 0;
}
selected = -1;
return OK;
}
int
openrd(const char *name, const char **basename)
{
const char *cp = name;
while (*cp && *cp!='(')
cp++;
if (!*cp)
cp = name;
else {
if (cp++ != name) {
if (name[1] != 'd' ||
(name[0] != 'h' && name[0] != 'f' && name[0] != 's')) {
printf("Unknown device\n");
return 1;
}
dev = name[0];
}
if (*cp >= '0' && *cp <= '9')
if ((unit = *cp++ - '0') > 1) {
printf("Bad unit\n");
return 1;
}
if (!*cp || (*cp == ',' && !*++cp))
return 1;
if (*cp >= 'a' && *cp <= 'p')
part = *cp++ - 'a';
while (*cp && *cp++!=')') ;
}
if (disk_open()) {
printf("Can't open device.\n");
return 1;
}
cnt = SBSIZE;
bnum = SBLOCK + boff;
if (disk_read(bnum, cnt, (vm_offset_t)fsbuf)) {
printf("Cant read super block\n");
return 1;
}
fs = (struct fs *)fsbuf;
if (fs->fs_magic != FS_MAGIC) {
printf("bad FS_MAGIC\n");
return 1;
}
if (!*cp || *cp == ' ' || !find(cp))
return 1;
poff = 0;
if (basename)
*basename = cp;
return 0;
}
int
main(int argc, char *argv[])
{
int parsed;
int success = 1;
parsed = parse_options(argc, argv);
argc -= parsed;
argv += parsed;
if (opts.size_override)
{
uint64_t size = parse_disk_size(opts.size_override);
blkio_set_size_override(size);
}
if (opts.sparse_clone)
blkio_open_sparse_clone(opts.sparse_clone);
if (opts.command_fn)
{
if ((disk = disk_open(opts.device_path)) == 0)
success = 0;
if (success && (fs = fs_open_disk(disk)) == 0)
success = 0;
if (success)
success = opts.command_fn(argc, argv);
if (fs)
fs_close(fs);
if (disk)
disk_close(disk);
}
else
{
usage();
}
if (opts.sparse_clone)
blkio_close_sparse_clone();
if (success)
{
return 0;
}
else
{
fprintf(stderr, "%s\n", get_error());
return 1;
}
}
static int
beri_cfi_disk_open(struct open_file *f, ...)
{
va_list ap;
struct disk_devdesc *dev;
va_start(ap, f);
dev = va_arg(ap, struct disk_devdesc *);
va_end(ap);
if (dev->d_unit != 0)
return (EIO);
return (disk_open(dev, cfi_get_mediasize(), cfi_get_sectorsize(), 0));
}
int *run(int npages, int nframes, page_fault_handler_t handler, void (*program)(char *, int)) {
int i;
page_algo_handler = handler;
disk = disk_open("myvirtualdisk",npages);
if(!disk) {
fprintf(stderr,"couldn't create virtual disk: %s\n",strerror(errno));
exit(EXIT_FAILURE);
}
struct page_table *pt = page_table_create( npages, nframes, page_fault_handler );
if(!pt) {
fprintf(stderr,"couldn't create page table: %s\n",strerror(errno));
exit(EXIT_FAILURE);
}
fi = 0;
disk_reads = 0;
disk_writes = 0;
page_faults = 0;
// Init frame table
ft = malloc(nframes * sizeof(int));
for (i = 0; i < nframes; ++i)
{
ft[i] = -1;
}
char *virtmem = page_table_get_virtmem(pt);
physmem = page_table_get_physmem(pt);
program(virtmem,npages*PAGE_SIZE);
printf("Disk writes: %d\n", disk_writes);
printf("Disk reads: %d\n", disk_reads);
printf("Page faults: %d\n", page_faults);
free(ft);
page_table_delete(pt);
disk_close(disk);
int *stats = malloc(sizeof(int) * 3);
stats[0] = disk_reads;
stats[1] = disk_writes;
stats[2] = page_faults;
return stats;
}
int
devfs(void)
{
if (disk_open()) {
printf("Can't open device.\n");
return 1;
}
cnt = SBSIZE;
bnum = SBLOCK + boff;
if (disk_read(bnum, cnt, (vm_offset_t)fsbuf)) {
printf("Cant read super block\n");
return 1;
}
fs = (struct fs *)fsbuf;
return (fs->fs_magic != FS_MAGIC);
}
quik_err_t
part_open(char *device,
int partno,
part_t *part)
{
ihandle dev;
quik_err_t err;
quik_err_t err2;
if (part->flags & PART_VALID) {
if (part->partno == partno &&
!strcmp(device, part->devname)) {
return ERR_NONE;
}
part_close(part);
}
err = disk_open(device, &dev);
if (err != ERR_NONE) {
return err;
}
err = read_mac_partition(dev, partno, part);
if (err == ERR_PART_NOT_MAC) {
err2 = read_dos_partition(dev, partno, part);
if (err2 == ERR_PART_NOT_DOS) {
err = ERR_PART_NOT_PARTITIONED;
} else {
err = err2;
}
}
if (err != ERR_NONE) {
disk_close(dev);
return err;
}
part->partno = partno;
strncpy(part->devname, device, sizeof(part->devname));
part->flags |= PART_VALID;
return ERR_NONE;
}
static void
beri_sdcard_disk_print(int verbose)
{
struct disk_devdesc dev;
char line[80];
sprintf(line, " sdcard%d Altera SD card drive\n", 0);
pager_output(line);
dev.d_dev = &beri_sdcard_disk;
dev.d_unit = 0;
dev.d_slice = -1;
dev.d_partition = -1;
if (disk_open(&dev, altera_sdcard_get_mediasize(),
altera_sdcard_get_sectorsize(), 0) == 0) {
sprintf(line, " sdcard%d", 0);
disk_print(&dev, line, verbose);
disk_close(&dev);
}
}
static int
stor_opendev(struct disk_devdesc *dev)
{
int err;
if (dev->d_unit < 0 || dev->d_unit >= stor_info_no)
return (EIO);
if (SI(dev).opened == 0) {
err = ub_dev_open(SI(dev).handle);
if (err != 0) {
stor_printf("device open failed with error=%d, "
"handle=%d\n", err, SI(dev).handle);
return (ENXIO);
}
SI(dev).opened++;
}
return (disk_open(dev, SI(dev).blocks * SI(dev).bsize,
SI(dev).bsize, 0));
}
static int
beri_sdcard_disk_open(struct open_file *f, ...)
{
va_list ap;
struct disk_devdesc *dev;
va_start(ap, f);
dev = va_arg(ap, struct disk_devdesc *);
va_end(ap);
if (!(altera_sdcard_get_present())) {
printf("SD card not present or not supported\n");
return (ENXIO);
}
if (dev->dd.d_unit != 0)
return (EIO);
return (disk_open(dev, altera_sdcard_get_mediasize(),
altera_sdcard_get_sectorsize()));
}
int diskscan_cli(int argc, char **argv)
{
int ret;
options_t opts;
memset(&opts, 0, sizeof(opts));
opts.mode = SCAN_MODE_SEQ;
if (parse_args(argc, argv, &opts))
return 1;
verbose = opts.verbose;
print_header();
setup_signals();
if (disk_open(&disk, opts.disk_path, opts.fix, 70))
return 1;
/*
if (print_disk_info(&disk))
return 1;
*/
if (opts.data_log_raw_name)
data_log_raw_start(&disk.data_raw, opts.data_log_raw_name, &disk);
if (opts.data_log_name)
data_log_start(&disk.data_log, opts.data_log_name, &disk);
ret = 0;
if (disk_scan(&disk, opts.mode, opts.scan_size))
ret = 1;
if (opts.data_log_raw_name)
data_log_raw_end(&disk.data_raw);
if (opts.data_log_name)
data_log_end(&disk.data_log, &disk);
disk_close(&disk);
return ret;
}
UIDiskChooser::UIDiskChooser(const char* title):Fl_Double_Window(400, 200, title){
uint32 i = 0;
uint32 dcount = disk_count();
disk_info_t info;
handle_t h;
char *fmt_name = "\\\\.\\PhysicalDrive%d";
char *name;
char *size;
_list = new UIDiskList(0, 0, 400, 160);
_list->begin();
for (i = 0; i < dcount; i ++){
h = disk_open(i);
if (h != null){
name = (char*)calloc(64, sizeof(char));
size = (char*)calloc(32, sizeof(char));
disk_info(h, &info);
format_size(size, info.size);
sprintf(name, fmt_name, i);
_list->add_disk(i, name, size, info.mbr.gpt_protect ? info.gpt.part_count : info.mbr.part_count);
}
disk_close(h);
}
_list->end();
add(_list);
_ok = new Fl_Button(260, 170, 60, 24, "OK");
_ok->callback(ok_cb, this);
add(_ok);
_cancel = new Fl_Button(330, 170, 60, 24, "Cancel");
_cancel->callback(cancel_cb, this);
add(_cancel);
}
int main( int argc, char *argv[] )
{
if(argc!=5)
{
printf("use: virtmem <npages> <nframes> <rand|fifo|custom> <sort|scan|focus>\n");
return 1;
}
npages = atoi(argv[1]);
nframes = atoi(argv[2]);
const char *algorithm = argv[3];
const char *program = argv[4];
loaded_pages = malloc(sizeof(int) * nframes);
int i;
for(i = 0; i < nframes; i++)
{
/* indicate that there is no pages loaded yet */
loaded_pages[i] = -1;
}
disk = disk_open("myvirtualdisk",npages);
if(!disk)
{
fprintf(stderr,"couldn't create virtual disk: %s\n",strerror(errno));
return 1;
}
struct page_table *pt = page_table_create( npages, nframes, page_fault_handler );
if(!pt)
{
fprintf(stderr,"couldn't create page table: %s\n",strerror(errno));
return 1;
}
char *virtmem = page_table_get_virtmem(pt);
physmem = page_table_get_physmem(pt);
if(!strcmp(algorithm, "rand"))
{
pageswap = 0;
}
else if(!strcmp(algorithm, "fifo"))
{
pageswap = 1;
fifo_counter = 0;
}
else if(!strcmp(algorithm, "custom"))
{
pageswap = 2;
fifo_counter = 0;
clock = malloc(sizeof(int) * nframes);
for(i = 0; i < nframes; i++)
{
clock[i] = 0;
}
}
else if(!strcmp(algorithm, "custom2"))
{
pageswap = 3;
clock = malloc(sizeof(int) * nframes);
for(i = 0; i < nframes; i++)
{
clock[i] = 0;
}
}
else
{
fprintf(stderr,"unknown algorithm: %s\n",argv[2]);
}
if(!strcmp(program,"sort"))
{
sort_program(virtmem,npages*PAGE_SIZE);
}
else if(!strcmp(program,"scan"))
{
scan_program(virtmem,npages*PAGE_SIZE);
}
else if(!strcmp(program,"focus"))
{
focus_program(virtmem,npages*PAGE_SIZE);
}
else
{
fprintf(stderr,"unknown program: %s\n",argv[3]);
}
printf("Faults: %d Reads: %d Writes: %d\n", fault_counter, read_count, write_count);
page_table_delete(pt);
disk_close(disk);
return 0;
}
int main(int argc, char* argv[])
{
FILE* debugfile;
disk_t* disk;
unt8* buffer;
unt8* clusterbuffer;
unsigned i;
unsigned j;
unsigned k;
void* fat_bitmap;
void* trifs_bitmap;
unsigned diskbitmapsize;
unt32* cluster_buffer;
printf("Trinary File System Tools : Convert FAT32 to TriFS\n\r"
"Copryright (c) 2003, Rudy Koot (Trinary Technologies)\n\r"
"\n\r"
"This program is free software; you can redistribute it and/or modify\n\r"
"it under the terms of the GNU General Public License as published by\n\r"
"the Free Software Foundation; either version 2 of the License, or\n\r"
"(at your option) any later version.\n\r");
disk = disk_open(argv[1]);
disk->blocksize = 512;
fat_super = malloc(disk->blocksize);
disk_read(disk, ((unt8*)(fat_super)), 0, 1);
printf("\n\rBIOS Parameter Block:\n\r");
printf(" File System Creator: %.8s\n\r", fat_super->system);
printf(" Bytes per Sector : %i\n\r", fat_super->bytespersector);
printf(" Sectors per Cluster: %i\n\r", fat_super->sectorspercluster);
printf(" Reserved Sectors : %i\n\r", fat_super->reservedsectors);
printf(" Number of FATs : %i\n\r", fat_super->numberoffats);
printf(" Root Entries : %i\n\r", fat_super->rootentries);
printf(" Legacy Sectors : %i\n\r", fat_super->legacysectors);
printf(" Media : %X\n\r", fat_super->media);
printf(" Legacy FAT Size : %i\n\r", fat_super->legacyfatsize);
printf(" Sectors Per Track : %i\n\r", fat_super->sectorspertrack);
printf(" Number of Tracks : %i\n\r", fat_super->numberoftracks);
printf(" Hidden Sectors : %i\n\r", fat_super->hiddensectors);
printf(" Total Sectros : %i\n\r", fat_super->totalsectors);
printf(" FAT Size : %i\n\r", fat_super->fatsize);
printf(" Extension Flags : %i\n\r", fat_super->extensionflags);
printf(" File System Version: %X\n\r", fat_super->filesystemversion);
printf(" Root Cluster : %i\n\r", fat_super->rootcluster);
printf(" File System Info : %i\n\r", fat_super->fsinfo);
printf(" Boot Sector Backup : %i\n\r", fat_super->bootsectorbackup);
printf(" Drive Number : %X\n\r", fat_super->drivenumber);
printf(" Boot Signature : %X\n\r", fat_super->bootsignature);
printf(" Volume ID : %X\n\r", fat_super->volid);
printf(" Label : %.11s\n\r", fat_super->label);
printf(" File System Type : %.8s\n\r", fat_super->fstype);
printf("\n\rFile System Layout:\n\r");
printf(" %.10i - %.10i: Boot Sector\n\r", 0, fat_super->reservedsectors - 1);
printf(" %.10i - %.10i: FAT 1\n\r", fat_super->reservedsectors, fat_super->fatsize + fat_super->reservedsectors - 1);
printf(" %.10i - %.10i: FAT 2\n\r", fat_super->fatsize + fat_super->reservedsectors, 2 * fat_super->fatsize + fat_super->reservedsectors - 1);
printf(" %.10i - %.10i: Data Area\n\r", 2 * fat_super->fatsize + fat_super->reservedsectors, fat_super->totalsectors - 1);
/* Setup the Conversion Table. */
ct.blocksize = 4096;
ct.bandsize = (256 * 1024 * 1024) / ct.blocksize;
ct.trifsmetadata = 4;
ct.sectorsize = fat_super->bytespersector;
ct.clustersize = (fat_super->bytespersector * fat_super->sectorspercluster) / ct.blocksize;
ct.fatmetadata = ((fat_super->reservedsectors + fat_super->fatsize * fat_super->numberoffats) * fat_super->bytespersector) / ct.blocksize;
ct.disksize = (fat_super->totalsectors * fat_super->bytespersector) / ct.blocksize;
if (((fat_super->reservedsectors + fat_super->fatsize * fat_super->numberoffats) * fat_super->bytespersector) % ct.blocksize != 0)
{
printf("Sorry the FAT alignment of this disk SUCKS!!!");
exit(1);
}
if (ct.blocksize > (fat_super->bytespersector * fat_super->sectorspercluster))
{
printf("The new Block Size must be small or equal to the original Cluster Size.");
exit(1);
}
printf("\n\rConversion Settings:\n\r");
printf(" Block Size : %i bytes\n\r", ct.blocksize);
printf(" Band Size : %i blocks\n\r", ct.bandsize);
printf(" Sector Size : %i bytes\n\r", ct.sectorsize);
printf(" Cluster Size : %i blocks\n\r", ct.clustersize);
printf(" FAT Metadata Size : %i blocks\n\r", ct.fatmetadata);
printf(" TriFS Metadata Size: %i blocks\n\r", ct.trifsmetadata);
printf(" Disk Size : %i blocks\n\r", ct.disksize);
printf("\n\rConverting File System:\n\r");
printf(" Loading FAT\n\r");
fat_buffer = malloc(fat_super->fatsize * fat_super->bytespersector);
disk_read(disk, fat_buffer, fat_super->reservedsectors, fat_super->fatsize);
/* Build the FAT Bitmap, by reserving the FAT Meta Data and the allocated *
* freestore. */
printf(" Building FAT Bitmap\n\r");
diskbitmapsize = ((fat_super->totalsectors * fat_super->bytespersector) / ct.blocksize + 7) / 8;
fat_bitmap = malloc(diskbitmapsize);
memset(fat_bitmap, 0, diskbitmapsize);
for (i = 0; i < ct.fatmetadata; i++)
{
bitset(fat_bitmap, i);
}
for (i = 0; i < (fat_super->fatsize * fat_super->bytespersector) / 4; i++)
{
if (fat_buffer[i] != 0)
{
for (j = 0; j < ct.clustersize; j++)
{
bitset(fat_bitmap, i * ct.clustersize + j);
}
}
}
/* Build the TriFS Bitmap, by reserving the TriFS Meta Data. */
printf(" Building TriFS Bitmap\n\r");
trifs_bitmap = malloc(diskbitmapsize);
memset(trifs_bitmap, 0, diskbitmapsize);
for (i = 0; i < ct.disksize; i += ct.bandsize)
{
for (j = 0; j < ct.trifsmetadata; j++)
{
bitset(trifs_bitmap, i + j);
}
}
printf(" Moving Conflicting Clusters\n\r");
disk->blocksize = ct.blocksize;
buffer = malloc(ct.clustersize * ct.blocksize);
for (i = 0; i < ct.disksize; i++)
{
if (bitget(trifs_bitmap, i) && bitget(fat_bitmap, i) && block2cluster(i) != 0)
{
printf(" %i (%i) ", i, block2cluster(i));
for (j = 0; j < (fat_super->fatsize * fat_super->bytespersector) / 4; j++)
{
if (fat_buffer[j] == 0)
{
printf("=> %i (%i)\n\r", j, cluster2block(j));
disk_read(disk, buffer, i, ct.clustersize);
disk_write(disk, buffer, cluster2block(j), ct.clustersize);
for (k = 0; k < (fat_super->fatsize * fat_super->bytespersector) / 4; k++)
{
if (fat_buffer[k] == block2cluster(i))
{
fat_buffer[k] = j;
break;
}
}
fat_buffer[j] = block2cluster(i);
break;
}
}
}
}
printf(" Building Directory Structure\n\r");
fat_builddirectory(disk, fat_super->rootcluster, ":", 0);
printf(" Updating Metadata\n\r");
debugfile = fopen("c:\\fat.bitmap.dump", "wb");
fwrite(fat_bitmap, diskbitmapsize, 1, debugfile);
fclose(debugfile);
debugfile = fopen("c:\\trifs.bitmap.dump", "wb");
fwrite(trifs_bitmap, diskbitmapsize, 1, debugfile);
fclose(debugfile);
return 0;
}
static
void *
disk_init(int slot, int argc, char *argv[])
{
struct disk_data *dd;
const char *filename = NULL;
off_t size;
uint32_t totsectors=0;
uint32_t rpm = 3600;
int i, paranoid=0, usedoom = 1;
for (i=1; i<argc; i++) {
if (!strncmp(argv[i], "rpm=", 4)) {
rpm = atoi(argv[i]+4);
}
else if (!strncmp(argv[i], "sectors=", 8)) {
totsectors = atoi(argv[i]+8);
}
else if (!strncmp(argv[i], "size=", 5)) {
size = getsize(argv[i]+5);
if (size % SECTSIZE) {
msg("disk: slot %d: Configured size is not a "
"unit number of sectors", slot);
die();
}
totsectors = size / SECTSIZE;
}
else if (!strncmp(argv[i], "file=", 5)) {
filename = argv[i]+5;
}
else if (!strcmp(argv[i], "paranoid")) {
paranoid = 1;
}
else if (!strcmp(argv[i], "doom")) {
usedoom = 1;
}
else if (!strcmp(argv[i], "nodoom")) {
usedoom = 0;
}
else {
msg("disk: slot %d: invalid option %s", slot, argv[i]);
die();
}
}
if (rpm < 60) {
msg("disk: slot %d: RPM too low (%d)", slot, rpm);
die();
}
if (rpm % 60) {
msg("disk: slot %d: RPM %d not a multiple of 60", slot, rpm);
die();
}
if (filename==NULL) {
msg("disk: slot %d: No filename specified", slot);
die();
}
/*
* Set up the disk
*/
dd = domalloc(sizeof(struct disk_data));
dd->dd_slot = slot;
dd->dd_fd = -1;
dd->dd_paranoid = paranoid;
dd->dd_sectors = NULL;
dd->dd_tracks = 0;
dd->dd_totsectors = 0;
dd->dd_rpm = rpm;
dd->dd_nsecs_per_rev = 1000000000 / (dd->dd_rpm / 60);
dd->dd_usedoom = usedoom;
dd->dd_current_track = 0;
clock_time(&dd->dd_trackarrival_secs, &dd->dd_trackarrival_nsecs);
dd->dd_iostatus = -1;
dd->dd_timedop = 0;
dd->dd_worktries = 0;
dd->dd_stat = DISKSTAT_IDLE;
dd->dd_sect = 0;
dd->dd_buf = domalloc(SECTSIZE);
disk_open(dd, filename, totsectors);
if (dd->dd_totsectors != totsectors && totsectors > 0) {
msg("disk: slot %d: %s: Wrong configured size %u (%uK)",
slot, filename, totsectors,
totsectors * 1024 / SECTSIZE);
msg("disk: slot %d: %s: Using image size %u (%uK)",
slot, filename, dd->dd_totsectors,
dd->dd_totsectors * 1024 / SECTSIZE);
}
if (dd->dd_totsectors < 128) {
msg("disk: slot %d: %s: Too small", slot, filename);
die();
}
/* set dd_cylinders, dd_sectors, dd_heads */
if (compute_sectors(dd)) {
msg("disk: slot %d: %s: Geometry initialization failed "
"(try another size)", slot, filename);
die();
}
return dd;
}
static bool format_setup(void)
{
struct device **devices = 0;
struct device **p = 0;
int n = 0;
int size = 128;
int i = 0;
int j = 0;
if((devices = device_probe_all(true)) == 0)
return false;
targets = malloc0(size * sizeof(struct format *));
for( p = devices ; *p != 0 ; ++p )
{
struct device *device = *p;
struct disk *disk = disk_open(device);
struct format *target = 0;
char buf[PATH_MAX] = {0};
if(disk == 0)
{
target = malloc0(sizeof(struct format));
add_target(target,&n,&size);
target->devicepath = strdup(device_get_path(device));
size_to_string(buf,PATH_MAX,device_get_size(device),true);
target->size = strdup(buf);
probe_filesystem(target);
}
else
{
for( i = 0, j = disk_partition_get_count(disk) ; i < j ; ++i )
{
const char *purpose = disk_partition_get_purpose(disk,i);
if(
strcmp(purpose,"data") != 0 &&
strcmp(purpose,"swap") != 0 &&
strcmp(purpose,"efi") != 0
)
continue;
target = malloc0(sizeof(struct format));
add_target(target,&n,&size);
snprintf(buf,PATH_MAX,"%s%d",device_get_path(device),disk_partition_get_number(disk,i));
target->devicepath = strdup(buf);
size_to_string(buf,PATH_MAX,disk_partition_get_size(disk,i),true);
target->size = strdup(buf);
probe_filesystem(target);
}
}
device_close(device);
}
free(devices);
targets = realloc(targets,(n + 1) * sizeof(struct format *));
return true;
}
int main( int argc, char *argv[] )
{
// handle input
if(argc!=5) {
printf("use: virtmem <npages> <nframes> <rand|fifo|custom> <sort|scan|focus>\n");
return 1;
}
int npages = atoi(argv[1]);
int nframes = atoi(argv[2]);
char *page_replacement = argv[3];
const char *program = argv[4];
if (!strcmp(page_replacement,"rand")){
page_rep_choice = 0;
}
else if(!strcmp(page_replacement,"fifo")){
page_rep_choice = 1;
}
else if(!strcmp(page_replacement,"custom")){
page_rep_choice = 2;
}
else{
printf("Choose rand, fifo, or custum\n");
return 1;
}
// create new virtual disk with pointer to the disk object
struct disk *disk = disk_open("myvirtualdisk",npages);
if(!disk) {
fprintf(stderr,"couldn't create virtual disk: %s\n",strerror(errno));
return 1;
}
// create page table with pointer to page table
// includes virtual memory and physical memory
struct page_table *pt = page_table_create( npages, nframes, page_fault_handler );
if(!pt) {
fprintf(stderr,"couldn't create page table: %s\n",strerror(errno));
return 1;
}
// return pointer to start of virtual memory
char *virtmem = page_table_get_virtmem(pt);
// return pointer to start of physical memory
char *physmem = page_table_get_physmem(pt);
// calls page_fault_handler
// call one of the algorithms
if(!strcmp(program,"sort")) {
sort_program(virtmem,npages*PAGE_SIZE);
} else if(!strcmp(program,"scan")) {
scan_program(virtmem,npages*PAGE_SIZE);
} else if(!strcmp(program,"focus")) {
focus_program(virtmem,npages*PAGE_SIZE);
} else {
fprintf(stderr,"unknown program: %s\n",argv[3]);
}
page_table_print(pt);
// clean up
page_table_delete(pt);
disk_close(disk);
return 0;
}
