1306 lines
24 KiB
C
1306 lines
24 KiB
C
#include "types.h"
|
|
#include "stat.h"
|
|
#include "user.h"
|
|
#include "fs.h"
|
|
#include "fcntl.h"
|
|
|
|
char buf[2048];
|
|
char name[3];
|
|
char *echoargv[] = { "echo", "ALL", "TESTS", "PASSED", 0 };
|
|
int stdout = 1;
|
|
|
|
// simple file system tests
|
|
|
|
void
|
|
opentest(void)
|
|
{
|
|
int fd;
|
|
|
|
printf(stdout, "open test\n");
|
|
fd = open("echo", 0);
|
|
if(fd < 0){
|
|
printf(stdout, "open echo failed!\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
fd = open("doesnotexist", 0);
|
|
if(fd >= 0){
|
|
printf(stdout, "open doesnotexist succeeded!\n");
|
|
exit();
|
|
}
|
|
printf(stdout, "open test ok\n");
|
|
}
|
|
|
|
void
|
|
writetest(void)
|
|
{
|
|
int fd;
|
|
int i;
|
|
|
|
printf(stdout, "small file test\n");
|
|
fd = open("small", O_CREATE|O_RDWR);
|
|
if(fd >= 0){
|
|
printf(stdout, "creat small succeeded; ok\n");
|
|
} else {
|
|
printf(stdout, "error: creat small failed!\n");
|
|
exit();
|
|
}
|
|
for(i = 0; i < 100; i++) {
|
|
if(write(fd, "aaaaaaaaaa", 10) != 10) {
|
|
printf(stdout, "error: write aa %d new file failed\n", i);
|
|
exit();
|
|
}
|
|
if(write(fd, "bbbbbbbbbb", 10) != 10) {
|
|
printf(stdout, "error: write bb %d new file failed\n", i);
|
|
exit();
|
|
}
|
|
}
|
|
printf(stdout, "writes ok\n");
|
|
close(fd);
|
|
fd = open("small", O_RDONLY);
|
|
if(fd >= 0){
|
|
printf(stdout, "open small succeeded ok\n");
|
|
} else {
|
|
printf(stdout, "error: open small failed!\n");
|
|
exit();
|
|
}
|
|
i = read(fd, buf, 2000);
|
|
if(i == 2000) {
|
|
printf(stdout, "read succeeded ok\n");
|
|
} else {
|
|
printf(stdout, "read failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
if(unlink("small") < 0) {
|
|
printf(stdout, "unlink small failed\n");
|
|
exit();
|
|
}
|
|
printf(stdout, "small file test ok\n");
|
|
}
|
|
|
|
void
|
|
writetest1(void)
|
|
{
|
|
int i, fd, n;
|
|
|
|
printf(stdout, "big files test\n");
|
|
|
|
fd = open("big", O_CREATE|O_RDWR);
|
|
if(fd < 0){
|
|
printf(stdout, "error: creat big failed!\n");
|
|
exit();
|
|
}
|
|
|
|
for(i = 0; i < MAXFILE; i++) {
|
|
((int*) buf)[0] = i;
|
|
if(write(fd, buf, 512) != 512) {
|
|
printf(stdout, "error: write big file failed\n", i);
|
|
exit();
|
|
}
|
|
}
|
|
|
|
close(fd);
|
|
|
|
fd = open("big", O_RDONLY);
|
|
if(fd < 0){
|
|
printf(stdout, "error: open big failed!\n");
|
|
exit();
|
|
}
|
|
|
|
n = 0;
|
|
for(;;) {
|
|
i = read(fd, buf, 512);
|
|
if(i == 0) {
|
|
if(n == MAXFILE - 1) {
|
|
printf(stdout, "read only %d blocks from big", n);
|
|
exit();
|
|
}
|
|
break;
|
|
} else if(i != 512) {
|
|
printf(stdout, "read failed %d\n", i);
|
|
exit();
|
|
}
|
|
if(((int*)buf)[0] != n) {
|
|
printf(stdout, "read content of block %d is %d\n",
|
|
n, ((int*)buf)[0]);
|
|
exit();
|
|
}
|
|
n++;
|
|
}
|
|
close(fd);
|
|
if(unlink("big") < 0) {
|
|
printf(stdout, "unlink big failed\n");
|
|
exit();
|
|
}
|
|
printf(stdout, "big files ok\n");
|
|
}
|
|
|
|
void
|
|
createtest(void)
|
|
{
|
|
int i, fd;
|
|
|
|
printf(stdout, "many creates, followed by unlink test\n");
|
|
|
|
name[0] = 'a';
|
|
name[2] = '\0';
|
|
for(i = 0; i < 52; i++) {
|
|
name[1] = '0' + i;
|
|
fd = open(name, O_CREATE|O_RDWR);
|
|
close(fd);
|
|
}
|
|
name[0] = 'a';
|
|
name[2] = '\0';
|
|
for(i = 0; i < 52; i++) {
|
|
name[1] = '0' + i;
|
|
unlink(name);
|
|
}
|
|
printf(stdout, "many creates, followed by unlink; ok\n");
|
|
}
|
|
|
|
void dirtest(void)
|
|
{
|
|
printf(stdout, "mkdir test\n");
|
|
|
|
if(mkdir("dir0") < 0) {
|
|
printf(stdout, "mkdir failed\n");
|
|
exit();
|
|
}
|
|
|
|
if(chdir("dir0") < 0) {
|
|
printf(stdout, "chdir dir0 failed\n");
|
|
exit();
|
|
}
|
|
|
|
if(chdir("..") < 0) {
|
|
printf(stdout, "chdir .. failed\n");
|
|
exit();
|
|
}
|
|
|
|
if(unlink("dir0") < 0) {
|
|
printf(stdout, "unlink dir0 failed\n");
|
|
exit();
|
|
}
|
|
printf(stdout, "mkdir test\n");
|
|
}
|
|
|
|
void
|
|
exectest(void)
|
|
{
|
|
printf(stdout, "exec test\n");
|
|
if(exec("echo", echoargv) < 0) {
|
|
printf(stdout, "exec echo failed\n");
|
|
exit();
|
|
}
|
|
}
|
|
|
|
// simple fork and pipe read/write
|
|
|
|
void
|
|
pipe1(void)
|
|
{
|
|
int fds[2], pid;
|
|
int seq, i, n, cc, total;
|
|
|
|
if(pipe(fds) != 0){
|
|
printf(1, "pipe() failed\n");
|
|
exit();
|
|
}
|
|
pid = fork();
|
|
seq = 0;
|
|
if(pid == 0){
|
|
close(fds[0]);
|
|
for(n = 0; n < 5; n++){
|
|
for(i = 0; i < 1033; i++)
|
|
buf[i] = seq++;
|
|
if(write(fds[1], buf, 1033) != 1033){
|
|
printf(1, "pipe1 oops 1\n");
|
|
exit();
|
|
}
|
|
}
|
|
exit();
|
|
} else if(pid > 0){
|
|
close(fds[1]);
|
|
total = 0;
|
|
cc = 1;
|
|
while((n = read(fds[0], buf, cc)) > 0){
|
|
for(i = 0; i < n; i++){
|
|
if((buf[i] & 0xff) != (seq++ & 0xff)){
|
|
printf(1, "pipe1 oops 2\n");
|
|
return;
|
|
}
|
|
}
|
|
total += n;
|
|
cc = cc * 2;
|
|
if(cc > sizeof(buf))
|
|
cc = sizeof(buf);
|
|
}
|
|
if(total != 5 * 1033)
|
|
printf(1, "pipe1 oops 3 total %d\n", total);
|
|
close(fds[0]);
|
|
wait();
|
|
} else {
|
|
printf(1, "fork() failed\n");
|
|
exit();
|
|
}
|
|
printf(1, "pipe1 ok\n");
|
|
}
|
|
|
|
// meant to be run w/ at most two CPUs
|
|
void
|
|
preempt(void)
|
|
{
|
|
int pid1, pid2, pid3;
|
|
int pfds[2];
|
|
|
|
printf(1, "preempt: ");
|
|
pid1 = fork();
|
|
if(pid1 == 0)
|
|
for(;;)
|
|
;
|
|
|
|
pid2 = fork();
|
|
if(pid2 == 0)
|
|
for(;;)
|
|
;
|
|
|
|
pipe(pfds);
|
|
pid3 = fork();
|
|
if(pid3 == 0){
|
|
close(pfds[0]);
|
|
if(write(pfds[1], "x", 1) != 1)
|
|
printf(1, "preempt write error");
|
|
close(pfds[1]);
|
|
for(;;)
|
|
;
|
|
}
|
|
|
|
close(pfds[1]);
|
|
if(read(pfds[0], buf, sizeof(buf)) != 1){
|
|
printf(1, "preempt read error");
|
|
return;
|
|
}
|
|
close(pfds[0]);
|
|
printf(1, "kill... ");
|
|
kill(pid1);
|
|
kill(pid2);
|
|
kill(pid3);
|
|
printf(1, "wait... ");
|
|
wait();
|
|
wait();
|
|
wait();
|
|
printf(1, "preempt ok\n");
|
|
}
|
|
|
|
// try to find any races between exit and wait
|
|
void
|
|
exitwait(void)
|
|
{
|
|
int i, pid;
|
|
|
|
for(i = 0; i < 100; i++){
|
|
pid = fork();
|
|
if(pid < 0){
|
|
printf(1, "fork failed\n");
|
|
return;
|
|
}
|
|
if(pid){
|
|
if(wait() != pid){
|
|
printf(1, "wait wrong pid\n");
|
|
return;
|
|
}
|
|
} else {
|
|
exit();
|
|
}
|
|
}
|
|
printf(1, "exitwait ok\n");
|
|
}
|
|
|
|
void
|
|
mem(void)
|
|
{
|
|
void *m1, *m2;
|
|
int pid;
|
|
|
|
if((pid = fork()) == 0){
|
|
m1 = 0;
|
|
while((m2 = malloc(10001)) != 0) {
|
|
*(char**) m2 = m1;
|
|
m1 = m2;
|
|
}
|
|
while(m1) {
|
|
m2 = *(char**)m1;
|
|
free(m1);
|
|
m1 = m2;
|
|
}
|
|
m1 = malloc(1024*20);
|
|
if(m1 == 0) {
|
|
printf(1, "couldn't allocate mem?!!\n");
|
|
exit();
|
|
}
|
|
free(m1);
|
|
printf(1, "mem ok\n");
|
|
exit();
|
|
} else {
|
|
wait();
|
|
}
|
|
}
|
|
|
|
// More file system tests
|
|
|
|
// two processes write to the same file descriptor
|
|
// is the offset shared? does inode locking work?
|
|
void
|
|
sharedfd(void)
|
|
{
|
|
int fd, pid, i, n, nc, np;
|
|
char buf[10];
|
|
|
|
unlink("sharedfd");
|
|
fd = open("sharedfd", O_CREATE|O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "fstests: cannot open sharedfd for writing");
|
|
return;
|
|
}
|
|
pid = fork();
|
|
memset(buf, pid==0?'c':'p', sizeof(buf));
|
|
for(i = 0; i < 1000; i++){
|
|
if(write(fd, buf, sizeof(buf)) != sizeof(buf)){
|
|
printf(1, "fstests: write sharedfd failed\n");
|
|
break;
|
|
}
|
|
}
|
|
if(pid == 0)
|
|
exit();
|
|
else
|
|
wait();
|
|
close(fd);
|
|
fd = open("sharedfd", 0);
|
|
if(fd < 0){
|
|
printf(1, "fstests: cannot open sharedfd for reading\n");
|
|
return;
|
|
}
|
|
nc = np = 0;
|
|
while((n = read(fd, buf, sizeof(buf))) > 0){
|
|
for(i = 0; i < sizeof(buf); i++){
|
|
if(buf[i] == 'c')
|
|
nc++;
|
|
if(buf[i] == 'p')
|
|
np++;
|
|
}
|
|
}
|
|
close(fd);
|
|
unlink("sharedfd");
|
|
if(nc == 10000 && np == 10000)
|
|
printf(1, "sharedfd ok\n");
|
|
else
|
|
printf(1, "sharedfd oops %d %d\n", nc, np);
|
|
}
|
|
|
|
// two processes write two different files at the same
|
|
// time, to test block allocation.
|
|
void
|
|
twofiles(void)
|
|
{
|
|
int fd, pid, i, j, n, total;
|
|
char *fname;
|
|
|
|
printf(1, "twofiles test\n");
|
|
|
|
unlink("f1");
|
|
unlink("f2");
|
|
|
|
pid = fork();
|
|
if(pid < 0){
|
|
printf(1, "fork failed\n");
|
|
return;
|
|
}
|
|
|
|
fname = pid ? "f1" : "f2";
|
|
fd = open(fname, O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "create failed\n");
|
|
exit();
|
|
}
|
|
|
|
memset(buf, pid?'p':'c', 512);
|
|
for(i = 0; i < 12; i++){
|
|
if((n = write(fd, buf, 500)) != 500){
|
|
printf(1, "write failed %d\n", n);
|
|
exit();
|
|
}
|
|
}
|
|
close(fd);
|
|
if(pid)
|
|
wait();
|
|
else
|
|
exit();
|
|
|
|
for(i = 0; i < 2; i++){
|
|
fd = open(i?"f1":"f2", 0);
|
|
total = 0;
|
|
while((n = read(fd, buf, sizeof(buf))) > 0){
|
|
for(j = 0; j < n; j++){
|
|
if(buf[j] != (i?'p':'c')){
|
|
printf(1, "wrong char\n");
|
|
exit();
|
|
}
|
|
}
|
|
total += n;
|
|
}
|
|
close(fd);
|
|
if(total != 12*500){
|
|
printf(1, "wrong length %d\n", total);
|
|
exit();
|
|
}
|
|
}
|
|
|
|
unlink("f1");
|
|
unlink("f2");
|
|
|
|
printf(1, "twofiles ok\n");
|
|
}
|
|
|
|
// two processes create and delete different files in same directory
|
|
void
|
|
createdelete(void)
|
|
{
|
|
enum { N = 20 };
|
|
int pid, i, fd;
|
|
char name[32];
|
|
|
|
printf(1, "createdelete test\n");
|
|
pid = fork();
|
|
if(pid < 0){
|
|
printf(1, "fork failed\n");
|
|
exit();
|
|
}
|
|
|
|
name[0] = pid ? 'p' : 'c';
|
|
name[2] = '\0';
|
|
for(i = 0; i < N; i++){
|
|
name[1] = '0' + i;
|
|
fd = open(name, O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "create failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
if(i > 0 && (i % 2 ) == 0){
|
|
name[1] = '0' + (i / 2);
|
|
if(unlink(name) < 0){
|
|
printf(1, "unlink failed\n");
|
|
exit();
|
|
}
|
|
}
|
|
}
|
|
|
|
if(pid==0)
|
|
exit();
|
|
else
|
|
wait();
|
|
|
|
for(i = 0; i < N; i++){
|
|
name[0] = 'p';
|
|
name[1] = '0' + i;
|
|
fd = open(name, 0);
|
|
if((i == 0 || i >= N/2) && fd < 0){
|
|
printf(1, "oops createdelete %s didn't exist\n", name);
|
|
exit();
|
|
} else if((i >= 1 && i < N/2) && fd >= 0){
|
|
printf(1, "oops createdelete %s did exist\n", name);
|
|
exit();
|
|
}
|
|
if(fd >= 0)
|
|
close(fd);
|
|
|
|
name[0] = 'c';
|
|
name[1] = '0' + i;
|
|
fd = open(name, 0);
|
|
if((i == 0 || i >= N/2) && fd < 0){
|
|
printf(1, "oops createdelete %s didn't exist\n", name);
|
|
exit();
|
|
} else if((i >= 1 && i < N/2) && fd >= 0){
|
|
printf(1, "oops createdelete %s did exist\n", name);
|
|
exit();
|
|
}
|
|
if(fd >= 0)
|
|
close(fd);
|
|
}
|
|
|
|
for(i = 0; i < N; i++){
|
|
name[0] = 'p';
|
|
name[1] = '0' + i;
|
|
unlink(name);
|
|
name[0] = 'c';
|
|
unlink(name);
|
|
}
|
|
|
|
printf(1, "createdelete ok\n");
|
|
}
|
|
|
|
// can I unlink a file and still read it?
|
|
void
|
|
unlinkread(void)
|
|
{
|
|
int fd, fd1;
|
|
|
|
printf(1, "unlinkread test\n");
|
|
fd = open("unlinkread", O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "create unlinkread failed\n");
|
|
exit();
|
|
}
|
|
write(fd, "hello", 5);
|
|
close(fd);
|
|
|
|
fd = open("unlinkread", O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "open unlinkread failed\n");
|
|
exit();
|
|
}
|
|
if(unlink("unlinkread") != 0){
|
|
printf(1, "unlink unlinkread failed\n");
|
|
exit();
|
|
}
|
|
|
|
fd1 = open("unlinkread", O_CREATE | O_RDWR);
|
|
write(fd1, "yyy", 3);
|
|
close(fd1);
|
|
|
|
if(read(fd, buf, sizeof(buf)) != 5){
|
|
printf(1, "unlinkread read failed");
|
|
exit();
|
|
}
|
|
if(buf[0] != 'h'){
|
|
printf(1, "unlinkread wrong data\n");
|
|
exit();
|
|
}
|
|
if(write(fd, buf, 10) != 10){
|
|
printf(1, "unlinkread write failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
unlink("unlinkread");
|
|
printf(1, "unlinkread ok\n");
|
|
}
|
|
|
|
void
|
|
linktest(void)
|
|
{
|
|
int fd;
|
|
|
|
printf(1, "linktest\n");
|
|
|
|
unlink("lf1");
|
|
unlink("lf2");
|
|
|
|
fd = open("lf1", O_CREATE|O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "create lf1 failed\n");
|
|
exit();
|
|
}
|
|
if(write(fd, "hello", 5) != 5){
|
|
printf(1, "write lf1 failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
if(link("lf1", "lf2") < 0){
|
|
printf(1, "link lf1 lf2 failed\n");
|
|
exit();
|
|
}
|
|
unlink("lf1");
|
|
|
|
if(open("lf1", 0) >= 0){
|
|
printf(1, "unlinked lf1 but it is still there!\n");
|
|
exit();
|
|
}
|
|
|
|
fd = open("lf2", 0);
|
|
if(fd < 0){
|
|
printf(1, "open lf2 failed\n");
|
|
exit();
|
|
}
|
|
if(read(fd, buf, sizeof(buf)) != 5){
|
|
printf(1, "read lf2 failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
if(link("lf2", "lf2") >= 0){
|
|
printf(1, "link lf2 lf2 succeeded! oops\n");
|
|
exit();
|
|
}
|
|
|
|
unlink("lf2");
|
|
if(link("lf2", "lf1") >= 0){
|
|
printf(1, "link non-existant succeeded! oops\n");
|
|
exit();
|
|
}
|
|
|
|
if(link(".", "lf1") >= 0){
|
|
printf(1, "link . lf1 succeeded! oops\n");
|
|
exit();
|
|
}
|
|
|
|
printf(1, "linktest ok\n");
|
|
}
|
|
|
|
// test concurrent create and unlink of the same file
|
|
void
|
|
concreate(void)
|
|
{
|
|
char file[3];
|
|
int i, pid, n, fd;
|
|
char fa[40];
|
|
struct {
|
|
ushort inum;
|
|
char name[14];
|
|
} de;
|
|
|
|
printf(1, "concreate test\n");
|
|
file[0] = 'C';
|
|
file[2] = '\0';
|
|
for(i = 0; i < 40; i++){
|
|
file[1] = '0' + i;
|
|
unlink(file);
|
|
pid = fork();
|
|
if(pid && (i % 3) == 1){
|
|
link("C0", file);
|
|
} else if(pid == 0 && (i % 5) == 1){
|
|
link("C0", file);
|
|
} else {
|
|
fd = open(file, O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "concreate create %s failed\n", file);
|
|
exit();
|
|
}
|
|
close(fd);
|
|
}
|
|
if(pid == 0)
|
|
exit();
|
|
else
|
|
wait();
|
|
}
|
|
|
|
memset(fa, 0, sizeof(fa));
|
|
fd = open(".", 0);
|
|
n = 0;
|
|
while(read(fd, &de, sizeof(de)) > 0){
|
|
if(de.inum == 0)
|
|
continue;
|
|
if(de.name[0] == 'C' && de.name[2] == '\0'){
|
|
i = de.name[1] - '0';
|
|
if(i < 0 || i >= sizeof(fa)){
|
|
printf(1, "concreate weird file %s\n", de.name);
|
|
exit();
|
|
}
|
|
if(fa[i]){
|
|
printf(1, "concreate duplicate file %s\n", de.name);
|
|
exit();
|
|
}
|
|
fa[i] = 1;
|
|
n++;
|
|
}
|
|
}
|
|
close(fd);
|
|
|
|
if(n != 40){
|
|
printf(1, "concreate not enough files in directory listing\n");
|
|
exit();
|
|
}
|
|
|
|
for(i = 0; i < 40; i++){
|
|
file[1] = '0' + i;
|
|
pid = fork();
|
|
if(pid < 0){
|
|
printf(1, "fork failed\n");
|
|
exit();
|
|
}
|
|
if(((i % 3) == 0 && pid == 0) ||
|
|
((i % 3) == 1 && pid != 0)){
|
|
fd = open(file, 0);
|
|
close(fd);
|
|
} else {
|
|
unlink(file);
|
|
}
|
|
if(pid == 0)
|
|
exit();
|
|
else
|
|
wait();
|
|
}
|
|
|
|
printf(1, "concreate ok\n");
|
|
}
|
|
|
|
// directory that uses indirect blocks
|
|
void
|
|
bigdir(void)
|
|
{
|
|
int i, fd;
|
|
char name[10];
|
|
|
|
printf(1, "bigdir test\n");
|
|
unlink("bd");
|
|
|
|
fd = open("bd", O_CREATE);
|
|
if(fd < 0){
|
|
printf(1, "bigdir create failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
for(i = 0; i < 500; i++){
|
|
name[0] = 'x';
|
|
name[1] = '0' + (i / 64);
|
|
name[2] = '0' + (i % 64);
|
|
name[3] = '\0';
|
|
if(link("bd", name) != 0){
|
|
printf(1, "bigdir link failed\n");
|
|
exit();
|
|
}
|
|
}
|
|
|
|
unlink("bd");
|
|
for(i = 0; i < 500; i++){
|
|
name[0] = 'x';
|
|
name[1] = '0' + (i / 64);
|
|
name[2] = '0' + (i % 64);
|
|
name[3] = '\0';
|
|
if(unlink(name) != 0){
|
|
printf(1, "bigdir unlink failed");
|
|
exit();
|
|
}
|
|
}
|
|
|
|
printf(1, "bigdir ok\n");
|
|
}
|
|
|
|
void
|
|
subdir(void)
|
|
{
|
|
int fd, cc;
|
|
|
|
printf(1, "subdir test\n");
|
|
|
|
unlink("ff");
|
|
if(mkdir("dd") != 0){
|
|
printf(1, "subdir mkdir dd failed\n");
|
|
exit();
|
|
}
|
|
|
|
fd = open("dd/ff", O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "create dd/ff failed\n");
|
|
exit();
|
|
}
|
|
write(fd, "ff", 2);
|
|
close(fd);
|
|
|
|
if(unlink("dd") >= 0){
|
|
printf(1, "unlink dd (non-empty dir) succeeded!\n");
|
|
exit();
|
|
}
|
|
|
|
if(mkdir("/dd/dd") != 0){
|
|
printf(1, "subdir mkdir dd/dd failed\n");
|
|
exit();
|
|
}
|
|
|
|
fd = open("dd/dd/ff", O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "create dd/dd/ff failed\n");
|
|
exit();
|
|
}
|
|
write(fd, "FF", 2);
|
|
close(fd);
|
|
|
|
fd = open("dd/dd/../ff", 0);
|
|
if(fd < 0){
|
|
printf(1, "open dd/dd/../ff failed\n");
|
|
exit();
|
|
}
|
|
cc = read(fd, buf, sizeof(buf));
|
|
if(cc != 2 || buf[0] != 'f'){
|
|
printf(1, "dd/dd/../ff wrong content\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
if(link("dd/dd/ff", "dd/dd/ffff") != 0){
|
|
printf(1, "link dd/dd/ff dd/dd/ffff failed\n");
|
|
exit();
|
|
}
|
|
|
|
if(unlink("dd/dd/ff") != 0){
|
|
printf(1, "unlink dd/dd/ff failed\n");
|
|
exit();
|
|
}
|
|
if(open("dd/dd/ff", O_RDONLY) >= 0){
|
|
printf(1, "open (unlinked) dd/dd/ff succeeded\n");
|
|
exit();
|
|
}
|
|
|
|
if(chdir("dd") != 0){
|
|
printf(1, "chdir dd failed\n");
|
|
exit();
|
|
}
|
|
if(chdir("dd/../../dd") != 0){
|
|
printf(1, "chdir dd/../../dd failed\n");
|
|
exit();
|
|
}
|
|
if(chdir("dd/../../../dd") != 0){
|
|
printf(1, "chdir dd/../../dd failed\n");
|
|
exit();
|
|
}
|
|
if(chdir("./..") != 0){
|
|
printf(1, "chdir ./.. failed\n");
|
|
exit();
|
|
}
|
|
|
|
fd = open("dd/dd/ffff", 0);
|
|
if(fd < 0){
|
|
printf(1, "open dd/dd/ffff failed\n");
|
|
exit();
|
|
}
|
|
if(read(fd, buf, sizeof(buf)) != 2){
|
|
printf(1, "read dd/dd/ffff wrong len\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
if(open("dd/dd/ff", O_RDONLY) >= 0){
|
|
printf(1, "open (unlinked) dd/dd/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
|
|
if(open("dd/ff/ff", O_CREATE|O_RDWR) >= 0){
|
|
printf(1, "create dd/ff/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(open("dd/xx/ff", O_CREATE|O_RDWR) >= 0){
|
|
printf(1, "create dd/xx/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(open("dd", O_CREATE) >= 0){
|
|
printf(1, "create dd succeeded!\n");
|
|
exit();
|
|
}
|
|
if(open("dd", O_RDWR) >= 0){
|
|
printf(1, "open dd rdwr succeeded!\n");
|
|
exit();
|
|
}
|
|
if(open("dd", O_WRONLY) >= 0){
|
|
printf(1, "open dd wronly succeeded!\n");
|
|
exit();
|
|
}
|
|
if(link("dd/ff/ff", "dd/dd/xx") == 0){
|
|
printf(1, "link dd/ff/ff dd/dd/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
if(link("dd/xx/ff", "dd/dd/xx") == 0){
|
|
printf(1, "link dd/xx/ff dd/dd/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
if(link("dd/ff", "dd/dd/ffff") == 0){
|
|
printf(1, "link dd/ff dd/dd/ffff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(mkdir("dd/ff/ff") == 0){
|
|
printf(1, "mkdir dd/ff/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(mkdir("dd/xx/ff") == 0){
|
|
printf(1, "mkdir dd/xx/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(mkdir("dd/dd/ffff") == 0){
|
|
printf(1, "mkdir dd/dd/ffff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dd/xx/ff") == 0){
|
|
printf(1, "unlink dd/xx/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dd/ff/ff") == 0){
|
|
printf(1, "unlink dd/ff/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(chdir("dd/ff") == 0){
|
|
printf(1, "chdir dd/ff succeeded!\n");
|
|
exit();
|
|
}
|
|
if(chdir("dd/xx") == 0){
|
|
printf(1, "chdir dd/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
|
|
if(unlink("dd/dd/ffff") != 0){
|
|
printf(1, "unlink dd/dd/ff failed\n");
|
|
exit();
|
|
}
|
|
if(unlink("dd/ff") != 0){
|
|
printf(1, "unlink dd/ff failed\n");
|
|
exit();
|
|
}
|
|
if(unlink("dd") == 0){
|
|
printf(1, "unlink non-empty dd succeeded!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dd/dd") < 0){
|
|
printf(1, "unlink dd/dd failed\n");
|
|
exit();
|
|
}
|
|
if(unlink("dd") < 0){
|
|
printf(1, "unlink dd failed\n");
|
|
exit();
|
|
}
|
|
|
|
printf(1, "subdir ok\n");
|
|
}
|
|
|
|
void
|
|
bigfile(void)
|
|
{
|
|
int fd, i, total, cc;
|
|
|
|
printf(1, "bigfile test\n");
|
|
|
|
unlink("bigfile");
|
|
fd = open("bigfile", O_CREATE | O_RDWR);
|
|
if(fd < 0){
|
|
printf(1, "cannot create bigfile");
|
|
exit();
|
|
}
|
|
for(i = 0; i < 20; i++){
|
|
memset(buf, i, 600);
|
|
if(write(fd, buf, 600) != 600){
|
|
printf(1, "write bigfile failed\n");
|
|
exit();
|
|
}
|
|
}
|
|
close(fd);
|
|
|
|
fd = open("bigfile", 0);
|
|
if(fd < 0){
|
|
printf(1, "cannot open bigfile\n");
|
|
exit();
|
|
}
|
|
total = 0;
|
|
for(i = 0; ; i++){
|
|
cc = read(fd, buf, 300);
|
|
if(cc < 0){
|
|
printf(1, "read bigfile failed\n");
|
|
exit();
|
|
}
|
|
if(cc == 0)
|
|
break;
|
|
if(cc != 300){
|
|
printf(1, "short read bigfile\n");
|
|
exit();
|
|
}
|
|
if(buf[0] != i/2 || buf[299] != i/2){
|
|
printf(1, "read bigfile wrong data\n");
|
|
exit();
|
|
}
|
|
total += cc;
|
|
}
|
|
close(fd);
|
|
if(total != 20*600){
|
|
printf(1, "read bigfile wrong total\n");
|
|
exit();
|
|
}
|
|
unlink("bigfile");
|
|
|
|
printf(1, "bigfile test ok\n");
|
|
}
|
|
|
|
void
|
|
fourteen(void)
|
|
{
|
|
int fd;
|
|
|
|
// DIRSIZ is 14.
|
|
printf(1, "fourteen test\n");
|
|
|
|
if(mkdir("12345678901234") != 0){
|
|
printf(1, "mkdir 12345678901234 failed\n");
|
|
exit();
|
|
}
|
|
if(mkdir("12345678901234/123456789012345") != 0){
|
|
printf(1, "mkdir 12345678901234/123456789012345 failed\n");
|
|
exit();
|
|
}
|
|
fd = open("123456789012345/123456789012345/123456789012345", O_CREATE);
|
|
if(fd < 0){
|
|
printf(1, "create 123456789012345/123456789012345/123456789012345 failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
fd = open("12345678901234/12345678901234/12345678901234", 0);
|
|
if(fd < 0){
|
|
printf(1, "open 12345678901234/12345678901234/12345678901234 failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
if(mkdir("12345678901234/12345678901234") == 0){
|
|
printf(1, "mkdir 12345678901234/12345678901234 succeeded!\n");
|
|
exit();
|
|
}
|
|
if(mkdir("123456789012345/12345678901234") == 0){
|
|
printf(1, "mkdir 12345678901234/123456789012345 succeeded!\n");
|
|
exit();
|
|
}
|
|
|
|
printf(1, "fourteen ok\n");
|
|
}
|
|
|
|
void
|
|
rmdot(void)
|
|
{
|
|
printf(1, "rmdot test\n");
|
|
if(mkdir("dots") != 0){
|
|
printf(1, "mkdir dots failed\n");
|
|
exit();
|
|
}
|
|
if(chdir("dots") != 0){
|
|
printf(1, "chdir dots failed\n");
|
|
exit();
|
|
}
|
|
if(unlink(".") == 0){
|
|
printf(1, "rm . worked!\n");
|
|
exit();
|
|
}
|
|
if(unlink("..") == 0){
|
|
printf(1, "rm .. worked!\n");
|
|
exit();
|
|
}
|
|
if(chdir("/") != 0){
|
|
printf(1, "chdir / failed\n");
|
|
exit();
|
|
}
|
|
if(unlink("dots/.") == 0){
|
|
printf(1, "unlink dots/. worked!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dots/..") == 0){
|
|
printf(1, "unlink dots/.. worked!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dots") != 0){
|
|
printf(1, "unlink dots failed!\n");
|
|
exit();
|
|
}
|
|
printf(1, "rmdot ok\n");
|
|
}
|
|
|
|
void
|
|
dirfile(void)
|
|
{
|
|
int fd;
|
|
|
|
printf(1, "dir vs file\n");
|
|
|
|
fd = open("dirfile", O_CREATE);
|
|
if(fd < 0){
|
|
printf(1, "create dirfile failed\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
if(chdir("dirfile") == 0){
|
|
printf(1, "chdir dirfile succeeded!\n");
|
|
exit();
|
|
}
|
|
fd = open("dirfile/xx", 0);
|
|
if(fd >= 0){
|
|
printf(1, "create dirfile/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
fd = open("dirfile/xx", O_CREATE);
|
|
if(fd >= 0){
|
|
printf(1, "create dirfile/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
if(mkdir("dirfile/xx") == 0){
|
|
printf(1, "mkdir dirfile/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dirfile/xx") == 0){
|
|
printf(1, "unlink dirfile/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
if(link("README", "dirfile/xx") == 0){
|
|
printf(1, "link to dirfile/xx succeeded!\n");
|
|
exit();
|
|
}
|
|
if(unlink("dirfile") != 0){
|
|
printf(1, "unlink dirfile failed!\n");
|
|
exit();
|
|
}
|
|
|
|
fd = open(".", O_RDWR);
|
|
if(fd >= 0){
|
|
printf(1, "open . for writing succeeded!\n");
|
|
exit();
|
|
}
|
|
fd = open(".", 0);
|
|
if(write(fd, "x", 1) > 0){
|
|
printf(1, "write . succeeded!\n");
|
|
exit();
|
|
}
|
|
close(fd);
|
|
|
|
printf(1, "dir vs file OK\n");
|
|
}
|
|
|
|
// test that iput() is called at the end of _namei()
|
|
void
|
|
iref(void)
|
|
{
|
|
int i, fd;
|
|
|
|
printf(1, "empty file name\n");
|
|
|
|
// the 50 is NINODE
|
|
for(i = 0; i < 50 + 1; i++){
|
|
if(mkdir("irefd") != 0){
|
|
printf(1, "mkdir irefd failed\n");
|
|
exit();
|
|
}
|
|
if(chdir("irefd") != 0){
|
|
printf(1, "chdir irefd failed\n");
|
|
exit();
|
|
}
|
|
|
|
mkdir("");
|
|
link("README", "");
|
|
fd = open("", O_CREATE);
|
|
if(fd >= 0)
|
|
close(fd);
|
|
fd = open("xx", O_CREATE);
|
|
if(fd >= 0)
|
|
close(fd);
|
|
unlink("xx");
|
|
}
|
|
|
|
chdir("/");
|
|
printf(1, "empty file name OK\n");
|
|
}
|
|
|
|
// test that fork fails gracefully
|
|
// the forktest binary also does this, but it runs out of proc entries first.
|
|
// inside the bigger usertests binary, we run out of memory first.
|
|
void
|
|
forktest(void)
|
|
{
|
|
int n, pid;
|
|
|
|
printf(1, "fork test\n");
|
|
|
|
for(n=0; n<1000; n++){
|
|
pid = fork();
|
|
if(pid < 0)
|
|
break;
|
|
if(pid == 0)
|
|
exit();
|
|
}
|
|
|
|
if(n == 1000){
|
|
printf(1, "fork claimed to work 1000 times!\n");
|
|
exit();
|
|
}
|
|
|
|
for(; n > 0; n--){
|
|
if(wait() < 0){
|
|
printf(1, "wait stopped early\n");
|
|
exit();
|
|
}
|
|
}
|
|
|
|
if(wait() != -1){
|
|
printf(1, "wait got too many\n");
|
|
exit();
|
|
}
|
|
|
|
printf(1, "fork test OK\n");
|
|
}
|
|
|
|
void
|
|
sbrktest(void)
|
|
{
|
|
printf(stdout, "sbrk test\n");
|
|
char *a = sbrk(0);
|
|
int i;
|
|
for(i = 0; i < 5000; i++){
|
|
char *b = sbrk(1);
|
|
if(b != a){
|
|
printf(stdout, "sbrk test failed %d %x %x\n", i, a, b);
|
|
exit();
|
|
}
|
|
*b = 1;
|
|
a = b + 1;
|
|
}
|
|
int pid = fork();
|
|
if(pid < 0){
|
|
printf(stdout, "sbrk test fork failed\n");
|
|
exit();
|
|
}
|
|
char *c = sbrk(1);
|
|
c = sbrk(1);
|
|
if(c != a + 1){
|
|
printf(stdout, "sbrk test failed post-fork\n");
|
|
exit();
|
|
}
|
|
if(pid == 0)
|
|
exit();
|
|
wait();
|
|
printf(stdout, "sbrk test OK\n");
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
printf(1, "usertests starting\n");
|
|
|
|
if(open("usertests.ran", 0) >= 0){
|
|
printf(1, "already ran user tests -- rebuild fs.img\n");
|
|
exit();
|
|
}
|
|
close(open("usertests.ran", O_CREATE));
|
|
|
|
sbrktest();
|
|
|
|
opentest();
|
|
writetest();
|
|
writetest1();
|
|
createtest();
|
|
|
|
mem();
|
|
pipe1();
|
|
preempt();
|
|
exitwait();
|
|
|
|
rmdot();
|
|
fourteen();
|
|
bigfile();
|
|
subdir();
|
|
concreate();
|
|
linktest();
|
|
unlinkread();
|
|
createdelete();
|
|
twofiles();
|
|
sharedfd();
|
|
dirfile();
|
|
iref();
|
|
forktest();
|
|
bigdir(); // slow
|
|
|
|
exectest();
|
|
|
|
exit();
|
|
}
|