static
void
genkeys(void)
{
long seedspace[numprocs];
int i;
/* Create the file. */
docreate(PATH_KEYS);
/* Generate random seeds for each subprocess. */
srandom(randomseed);
for (i=0; i<numprocs; i++) {
seedspace[i] = random();
}
/* Do it. */
seeds = seedspace;
doforkall("Initialization", genkeys_sub);
seeds = NULL;
/* Cross-check the size of the output. */
if (getsize(PATH_KEYS) != correctsize) {
complainx("%s: file is wrong size", PATH_KEYS);
exit(1);
}
/* Checksum the output. */
checksum = checksum_file(PATH_KEYS);
complainx("Checksum of unsorted keys: %ld", checksum);
}
int
main(int argc, char *argv[])
{
const char *command;
int doforce = 0;
int ch;
int i;
if (argc < 2) {
usage();
}
command = argv[1];
argv++;
argc--;
while ((ch = getopt(argc, argv, "f"))!=-1) {
switch (ch) {
case 'f':
doforce = 1;
break;
default:
usage();
}
}
if (!strcmp(command, "create")) {
if (optind + 2 != argc) {
usage();
}
docreate(argv[optind], argv[optind+1], doforce);
}
else if (!strcmp(command, "info") || !strcmp(command, "stat") ||
!strcmp(command, "stats") || !strcmp(command, "status")) {
if (doforce) {
usage();
}
for (i=optind; i<argc; i++) {
doinfo(argv[i]);
}
}
else if (!strcmp(command, "resize") || !strcmp(command, "setsize")) {
if (optind + 2 != argc) {
usage();
}
if (doforce) {
usage();
}
doresize(argv[optind], argv[optind+1]);
}
else if (!strcmp(command, "help")) {
usage();
}
else {
fprintf(stderr, "disk161: Unknown command %s\n", command);
usage();
}
return 0;
}
static
void
sort(void)
{
unsigned long sortedsum;
int i, j;
/* Step 1. Toss into bins. */
doforkall("Tossing", bin);
checksize_bins();
complainx("Done tossing into bins.");
/* Step 2: Sort the bins. */
doforkall("Sorting", sortbins);
checksize_bins();
complainx("Done sorting the bins.");
/* Step 3: Merge corresponding bins. */
doforkall("Merging", mergebins);
checksize_merge();
complainx("Done merging the bins.");
/* Step 3a: delete the bins */
for (i=0; i<numprocs; i++) {
for (j=0; j<numprocs; j++) {
doremove(binname(i, j));
}
}
/* Step 4: assemble output file */
docreate(PATH_SORTED);
doforkall("Final assembly", assemble);
if (getsize(PATH_SORTED) != correctsize) {
complainx("%s: file is wrong size", PATH_SORTED);
exit(1);
}
/* Step 4a: delete the merged bins */
for (i=0; i<numprocs; i++) {
doremove(mergedname(i));
}
/* Step 5: Checksum the result. */
sortedsum = checksum_file(PATH_SORTED);
complainx("Checksum of sorted keys: %ld", sortedsum);
if (sortedsum != checksum) {
complainx("Sums do not match");
exit(1);
}
}
/*this is the main routine*/
void doshell()
{
char line[80];
/*run forever - the shell shouldn't end*/
while(1==1)
{
/*read in a line*/
printstring("SHELL>\0");
readstring(line);
/*match it against each possible command*/
/*if the user presses return, ignore it*/
if (line[0]==0xd)
continue;
else if (iscommand(line,"CLS\0")==1)
doclear();
else if (iscommand(line,"cls\0")==1)
doclear();
else if (iscommand(line,"COPY\0")==1)
docopy();
else if (iscommand(line,"copy\0")==1)
docopy();
else if (iscommand(line,"CREATE \0")==1)
docreate(line);
else if (iscommand(line,"create \0")==1)
docreate(line);
else if (iscommand(line,"DELETE \0")==1)
dodelete(line);
else if (iscommand(line,"delete \0")==1)
dodelete(line);
else if (iscommand(line,"DIR\0")==1)
dodir();
else if (iscommand(line,"dir\0")==1)
dodir();
else if (iscommand(line,"EXEC \0")==1)
doexecute(line,1);
else if (iscommand(line,"exec \0")==1)
doexecute(line,1);
else if (iscommand(line,"EXECBACK \0")==1)
doexecute(line,0);
else if (iscommand(line,"execback \0")==1)
doexecute(line,0);
else if (iscommand(line,"HELP\0")==1)
dohelp();
else if (iscommand(line,"help\0")==1)
dohelp();
else if (line[0]=='?')
dohelp();
else if (iscommand(line,"TYPE \0")==1)
dotype(line);
else if (iscommand(line,"type \0")==1)
dotype(line);
else if (iscommand(line,"KILL \0")==1)
dokill(line);
else if (iscommand(line,"kill \0")==1)
dokill(line);
else if (iscommand(line,"mkdir \0")==1)
domkdir(line);
else if (iscommand(line,"MKDIR\0")==1)
domkdir(line);
else if (iscommand(line,"FORMAT\0")==1)
doFormat();
else if (iscommand(line,"format\0")==1)
doFormat();
else if (iscommand(line,"remove\0")==1)
doRemove(line);
else if (iscommand(line,"REMOVE\0")==1)
doRemove(line);
else if (iscommand(line,"list\0")==1)
doList();
else if (iscommand(line,"LIST\0")==1)
doList();
else if (iscommand(line,"count\0")==1)
doCount(line);
else if (iscommand(line,"WRITE\0")==1)
doCreateFile(line);
else if (iscommand(line,"write\0")==1)
doCreateFile(line);
else if (iscommand(line,"READ\0")==1)
doEcho(line);
else if (iscommand(line,"read\0")==1)
doEcho(line);
else
printstring("Command not found\r\n\0");
printstring("\r\n\0");
}
}
