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提交 a64cd813 创建 作者: kaashoek's avatar kaashoek
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one regression test program

上级 1dca3afb
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Makefile
浏览文件 @ a64cd813
...@@ -84,18 +84,10 @@ vectors.S : vectors.pl ...@@ -84,18 +84,10 @@ vectors.S : vectors.pl
ULIB = ulib.o usys.o printf.o umalloc.o ULIB = ulib.o usys.o printf.o umalloc.o
user1 : user1.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o user1 user1.o $(ULIB)
$(OBJDUMP) -S user1 > user1.asm
usertests : usertests.o $(ULIB) usertests : usertests.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o usertests usertests.o $(ULIB) $(LD) -N -e main -Ttext 0 -o usertests usertests.o $(ULIB)
$(OBJDUMP) -S usertests > usertests.asm $(OBJDUMP) -S usertests > usertests.asm
fstests : fstests.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o fstests fstests.o $(ULIB)
$(OBJDUMP) -S fstests > fstests.asm
_echo : echo.o $(ULIB) _echo : echo.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o _echo echo.o $(ULIB) $(LD) -N -e main -Ttext 0 -o _echo echo.o $(ULIB)
$(OBJDUMP) -S _echo > echo.asm $(OBJDUMP) -S _echo > echo.asm
...@@ -104,10 +96,6 @@ _cat : cat.o $(ULIB) ...@@ -104,10 +96,6 @@ _cat : cat.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o _cat cat.o $(ULIB) $(LD) -N -e main -Ttext 0 -o _cat cat.o $(ULIB)
$(OBJDUMP) -S _cat > cat.asm $(OBJDUMP) -S _cat > cat.asm
userfs : userfs.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o userfs userfs.o $(ULIB)
$(OBJDUMP) -S userfs > userfs.asm
_init : init.o $(ULIB) _init : init.o $(ULIB)
$(LD) -N -e main -Ttext 0 -o _init init.o $(ULIB) $(LD) -N -e main -Ttext 0 -o _init init.o $(ULIB)
$(OBJDUMP) -S _init > init.asm $(OBJDUMP) -S _init > init.asm
...@@ -131,8 +119,8 @@ _rm : rm.o $(ULIB) ...@@ -131,8 +119,8 @@ _rm : rm.o $(ULIB)
mkfs : mkfs.c fs.h mkfs : mkfs.c fs.h
cc -o mkfs mkfs.c cc -o mkfs mkfs.c
fs.img : mkfs userfs usertests _echo _cat README _init _sh _ls _mkdir _rm fstests fs.img : mkfs usertests _echo _cat README _init _sh _ls _mkdir _rm fstests
./mkfs fs.img userfs usertests _echo _cat README _init _sh _ls _mkdir _rm fstests ./mkfs fs.img usertests _echo _cat README _init _sh _ls _mkdir _rm fstests
-include *.d -include *.d
...@@ -140,5 +128,5 @@ clean : ...@@ -140,5 +128,5 @@ clean :
/bin/rm -f rm /bin/rm -f rm
rm -f *.ps *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \ rm -f *.ps *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \
*.o *.d *.asm vectors.S parport.out \ *.o *.d *.asm vectors.S parport.out \
bootblock kernel xv6.img user1 userfs usertests \ bootblock kernel xv6.img usertests \
fs.img mkfs echo init fstests fs.img mkfs echo init
fstests.c deleted 100644 → 0
浏览文件 @ 1dca3afb
#include "types.h"
#include "stat.h"
#include "user.h"
#include "fcntl.h"
char buf[512];
// two processes write to the same file descriptor
// is the offset shared? does inode locking work?
void
sharedfd()
{
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 < 100; 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 == 1000 && np == 1000)
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()
{
int fd, pid, i, j, n, total;
char *fname;
unlink("f1");
unlink("f2");
pid = fork();
if(pid < 0){
puts("fork failed\n");
return;
}
fname = pid ? "f1" : "f2";
fd = open(fname, O_CREATE | O_RDWR);
if(fd < 0){
puts("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')){
puts("wrong char\n");
exit();
}
}
total += n;
}
close(fd);
if(total != 12*500){
printf(1, "wrong length %d\n", total);
exit();
}
}
unlink("f1");
unlink("f2");
puts("twofiles ok\n");
}
// two processes create and delete files in same directory
void
createdelete()
{
int pid, i, fd;
int n = 20;
char name[32];
pid = fork();
if(pid < 0){
puts("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){
puts("create failed\n");
exit();
}
close(fd);
if(i > 0 && (i % 2 ) == 0){
name[1] = '0' + (i / 2);
if(unlink(name) < 0){
puts("unlink failed\n");
exit();
}
}
}
if(pid)
exit();
else
exit();
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()
{
int fd, fd1;
fd = open("unlinkread", O_CREATE | O_RDWR);
if(fd < 0){
puts("create unlinkread failed\n");
exit();
}
write(fd, "hello", 5);
close(fd);
fd = open("unlinkread", O_RDWR);
if(fd < 0){
puts("open unlinkread failed\n");
exit();
}
if(unlink("unlinkread") != 0){
puts("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){
puts("unlinkread read failed");
exit();
}
if(buf[0] != 'h'){
puts("unlinkread wrong data\n");
exit();
}
if(write(fd, buf, 10) != 10){
puts("unlinkread write failed\n");
exit();
}
close(fd);
unlink("unlinkread");
puts("unlinkread ok\n");
}
void
linktest()
{
int fd;
unlink("lf1");
unlink("lf2");
fd = open("lf1", O_CREATE|O_RDWR);
if(fd < 0){
puts("create lf1 failed\n");
exit();
}
if(write(fd, "hello", 5) != 5){
puts("write lf1 failed\n");
exit();
}
close(fd);
if(link("lf1", "lf2") < 0){
puts("link lf1 lf2 failed\n");
exit();
}
unlink("lf1");
if(open("lf1", 0) >= 0){
puts("unlinked lf1 but it is still there!\n");
exit();
}
fd = open("lf2", 0);
if(fd < 0){
puts("open lf2 failed\n");
exit();
}
if(read(fd, buf, sizeof(buf)) != 5){
puts("read lf2 failed\n");
exit();
}
close(fd);
if(link("lf2", "lf2") >= 0){
puts("link lf2 lf2 succeeded! oops\n");
exit();
}
unlink("lf2");
if(link("lf2", "lf1") >= 0){
puts("link non-existant succeeded! oops\n");
exit();
}
if(link(".", "lf1") >= 0){
puts("link . lf1 succeeded! oops\n");
exit();
}
puts("linktest ok\n");
}
// test concurrent create of the same file
void
concreate()
{
char file[3];
int i, pid, n, fd;
char fa[40];
struct {
unsigned short inum;
char name[14];
} de;
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){
puts("concreate not enough files in directory listing\n");
exit();
}
for(i = 0; i < 40; i++){
file[1] = '0' + i;
unlink(file);
}
puts("concreate ok\n");
}
// directory that uses indirect blocks
void
bigdir()
{
int i, fd;
char name[10];
unlink("bd");
fd = open("bd", O_CREATE);
if(fd < 0){
puts("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){
puts("bigdir link failed\n");
exit();
}
puts("c");
}
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){
puts("bigdir unlink failed");
exit();
}
puts("d");
}
puts("bigdir ok\n");
}
void
subdir()
{
int fd, cc;
unlink("ff");
if(mkdir("dd") != 0){
puts("subdir mkdir dd failed\n");
exit();
}
fd = open("dd/ff", O_CREATE | O_RDWR);
if(fd < 0){
puts("create dd/ff failed\n");
exit();
}
write(fd, "ff", 2);
close(fd);
if(mkdir("/dd/dd") != 0){
puts("subdir mkdir dd/dd failed\n");
exit();
}
fd = open("dd/dd/ff", O_CREATE | O_RDWR);
if(fd < 0){
puts("create dd/dd/ff failed\n");
exit();
}
write(fd, "FF", 2);
close(fd);
fd = open("dd/dd/../ff", 0);
if(fd < 0){
puts("open dd/dd/../ff failed\n");
exit();
}
cc = read(fd, buf, sizeof(buf));
if(cc != 2 || buf[0] != 'f'){
puts("dd/dd/../ff wrong content\n");
exit();
}
close(fd);
if(link("dd/dd/ff", "dd/dd/ffff") != 0){
puts("link dd/dd/ff dd/dd/ffff failed\n");
exit();
}
if(unlink("dd/dd/ff") != 0){
puts("unlink dd/dd/ff failed\n");
exit();
}
if(chdir("dd") != 0){
puts("chdir dd failed\n");
exit();
}
if(chdir("dd/../../dd") != 0){
puts("chdir dd/../../dd failed\n");
exit();
}
if(chdir("./..") != 0){
puts("chdir ./.. failed\n");
exit();
}
fd = open("dd/dd/ffff", 0);
if(fd < 0){
puts("open dd/dd/ffff failed\n");
exit();
}
if(read(fd, buf, sizeof(buf)) != 2){
puts("read dd/dd/ffff wrong len\n");
exit();
}
close(fd);
if(open("dd/dd/ff", 0) >= 0){
puts("open dd/dd/ff succeeded!\n");
exit();
}
if(open("dd/ff/ff", O_CREATE|O_RDWR) >= 0){
puts("create dd/ff/ff succeeded!\n");
exit();
}
if(open("dd/xx/ff", O_CREATE|O_RDWR) >= 0){
puts("create dd/xx/ff succeeded!\n");
exit();
}
if(open("dd", O_CREATE) >= 0){
puts("create dd succeeded!\n");
exit();
}
if(open("dd", O_RDWR) >= 0){
puts("open dd rdwr succeeded!\n");
exit();
}
if(open("dd", O_WRONLY) >= 0){
puts("open dd wronly succeeded!\n");
exit();
}
if(link("dd/ff/ff", "dd/dd/xx") == 0){
puts("link dd/ff/ff dd/dd/xx succeeded!\n");
exit();
}
if(link("dd/xx/ff", "dd/dd/xx") == 0){
puts("link dd/xx/ff dd/dd/xx succeeded!\n");
exit();
}
if(link("dd/ff", "dd/dd/ffff") == 0){
puts("link dd/ff dd/dd/ffff succeeded!\n");
exit();
}
if(mkdir("dd/ff/ff") == 0){
puts("mkdir dd/ff/ff succeeded!\n");
exit();
}
if(mkdir("dd/xx/ff") == 0){
puts("mkdir dd/xx/ff succeeded!\n");
exit();
}
if(mkdir("dd/dd/ffff") == 0){
puts("mkdir dd/dd/ffff succeeded!\n");
exit();
}
if(unlink("dd/xx/ff") == 0){
puts("unlink dd/xx/ff succeeded!\n");
exit();
}
if(unlink("dd/ff/ff") == 0){
puts("unlink dd/ff/ff succeeded!\n");
exit();
}
if(chdir("dd/ff") == 0){
puts("chdir dd/ff succeeded!\n");
exit();
}
if(chdir("dd/xx") == 0){
puts("chdir dd/xx succeeded!\n");
exit();
}
if(unlink("dd/dd/ffff") != 0){
puts("unlink dd/dd/ff failed\n");
exit();
}
if(unlink("dd/ff") != 0){
puts("unlink dd/ff failed\n");
exit();
}
// unlink dd/dd
// unlink dd
puts("subdir ok\n");
}
void
bigfile()
{
int fd, i, total, cc;
unlink("bigfile");
fd = open("bigfile", O_CREATE | O_RDWR);
if(fd < 0){
puts("cannot create bigfile");
exit();
}
for(i = 0; i < 20; i++){
memset(buf, i, 600);
if(write(fd, buf, 600) != 600){
puts("write bigfile failed\n");
exit();
}
}
close(fd);
fd = open("bigfile", 0);
if(fd < 0){
puts("cannot open bigfile\n");
exit();
}
total = 0;
for(i = 0; ; i++){
cc = read(fd, buf, 300);
if(cc < 0){
puts("read bigfile failed\n");
exit();
}
if(cc == 0)
break;
if(cc != 300){
puts("short read bigfile\n");
exit();
}
if(buf[0] != i/2 || buf[299] != i/2){
puts("read bigfile wrong data\n");
exit();
}
total += cc;
}
close(fd);
if(total != 20*600){
puts("read bigfile wrong total\n");
exit();
}
unlink("bigfile");
puts("bigfile ok\n");
}
void
fourteen()
{
int fd;
if(mkdir("12345678901234") != 0){
puts("mkdir 12345678901234 failed\n");
exit();
}
if(mkdir("12345678901234/123456789012345") != 0){
puts("mkdir 12345678901234/123456789012345 failed\n");
exit();
}
fd = open("123456789012345/123456789012345/123456789012345", O_CREATE);
if(fd < 0){
puts("create 123456789012345/123456789012345/123456789012345 failed\n");
exit();
}
close(fd);
fd = open("12345678901234/12345678901234/12345678901234", 0);
if(fd < 0){
puts("open 12345678901234/12345678901234/12345678901234 failed\n");
exit();
}
close(fd);
if(mkdir("12345678901234/12345678901234") == 0){
puts("mkdir 12345678901234/12345678901234 succeeded!\n");
exit();
}
if(mkdir("123456789012345/12345678901234") == 0){
puts("mkdir 12345678901234/123456789012345 succeeded!\n");
exit();
}
puts("fourteen ok\n");
}
int
main(int argc, char *argv[])
{
puts("fstests starting\n");
fourteen();
bigfile();
subdir();
// bigdir(); // slow
concreate();
linktest();
unlinkread();
createdelete();
twofiles();
sharedfd();
puts("fstests finished\n");
exit();
}
user1.c deleted 100644 → 0
浏览文件 @ 1dca3afb
#include "user.h"
char buf[32];
int
main(void)
{
int pid, fds[2], n;
pipe(fds);
pid = fork();
if(pid > 0){
write(fds[1], "xyz", 4);
puts("w");
} else {
n = read(fds[0], buf, sizeof(buf));
puts("r: ");
puts(buf);
puts("\n");
}
for(;;);
}
userfs.c deleted 100644 → 0
浏览文件 @ 1dca3afb
#include "types.h"
#include "stat.h"
#include "user.h"
#include "fs.h"
#include "fcntl.h"
// simple file system tests
char buf[2000];
char name[3];
char *echo_args[] = { "echo", "hello", "goodbye", 0 };
char *cat_args[] = { "cat", "readme", 0 };
int stdout = 1;
void
opentest(void)
{
int fd;
fd = open("echo", 0);
if(fd >= 0){
printf(stdout, "open echo ok\n");
close(fd);
} else {
printf(stdout, "open echo failed!\n");
exit();
}
fd = open("doesnotexist", 0);
if(fd >= 0){
printf(stdout, "open doesnotexist succeeded!\n");
exit();
} else {
printf(stdout, "open doesnotexist failed\n");
}
}
void
writetest(void)
{
int fd;
int i;
fd = open("small", O_CREATE|O_RDWR);
if(fd >= 0){
printf(stdout, "creat small succeeded\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 done\n");
close(fd);
fd = open("small", O_RDONLY);
if(fd >= 0){
printf(stdout, "open small succeeded\n");
} else {
printf(stdout, "error: open small failed!\n");
exit();
}
i = read(fd, buf, 2000);
if(i == 2000) {
printf(stdout, "read succeeded\n");
} else {
printf(stdout, "read failed\n");
exit();
}
close(fd);
if(unlink("small") < 0) {
printf(stdout, "unlink small failed\n");
exit();
}
}
void
writetest1(void)
{
int i, fd, n;
printf(stdout, "big files\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();
}
}
void
createtest(void)
{
int i, fd;
printf(stdout, "many creates, followed by unlink\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);
}
}
void dirtest(void)
{
printf(stdout, "mkdir\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();
}
}
void
exectest(void)
{
if(exec("echo", echo_args) < 0) {
printf(stdout, "exec echo failed\n");
exit();
}
if(exec("cat", cat_args) < 0) {
printf(stdout, "exec cat failed\n");
exit();
}
}
int
main(void)
{
printf(stdout, "userfs is running\n");
opentest();
writetest();
writetest1();
createtest();
exectest();
return 0;
}
usertests.c
浏览文件 @ a64cd813
#include "types.h" #include "types.h"
#include "stat.h" #include "stat.h"
#include "user.h" #include "user.h"
#include "fs.h"
#include "fcntl.h" #include "fcntl.h"
char buf[2048]; char buf[2048];
char name[3];
char *echo_args[] = { "echo", "hello", "goodbye", 0 };
char *cat_args[] = { "cat", "README", 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", echo_args) < 0) {
printf(stdout, "exec echo failed\n");
exit();
}
}
// simple fork and pipe read/write // simple fork and pipe read/write
...@@ -14,7 +206,7 @@ pipe1(void) ...@@ -14,7 +206,7 @@ pipe1(void)
int seq = 0, i, n, cc, total; int seq = 0, i, n, cc, total;
if(pipe(fds) != 0){ if(pipe(fds) != 0){
puts("pipe() failed\n"); printf(1, "pipe() failed\n");
exit(); exit();
} }
pid = fork(); pid = fork();
...@@ -50,10 +242,10 @@ pipe1(void) ...@@ -50,10 +242,10 @@ pipe1(void)
close(fds[0]); close(fds[0]);
wait(); wait();
} else { } else {
puts("fork() failed\n"); printf(1, "fork() failed\n");
exit(); exit();
} }
puts("pipe1 ok\n"); printf(1, "pipe1 ok\n");
} }
// meant to be run w/ at most two CPUs // meant to be run w/ at most two CPUs
...@@ -96,7 +288,7 @@ preempt(void) ...@@ -96,7 +288,7 @@ preempt(void)
wait(); wait();
wait(); wait();
wait(); wait();
puts("preempt ok\n"); printf(1, "preempt ok\n");
} }
// try to find any races between exit and wait // try to find any races between exit and wait
...@@ -120,7 +312,7 @@ exitwait(void) ...@@ -120,7 +312,7 @@ exitwait(void)
exit(); exit();
} }
} }
puts("exitwait ok\n"); printf(1, "exitwait ok\n");
} }
void void
...@@ -142,7 +334,7 @@ mem(void) ...@@ -142,7 +334,7 @@ mem(void)
} }
m1 = malloc(1024*20); m1 = malloc(1024*20);
if(m1 == 0) { if(m1 == 0) {
puts("couldn't allocate mem?!!\n"); printf(1, "couldn't allocate mem?!!\n");
exit(); exit();
} }
free(m1); free(m1);
...@@ -153,16 +345,706 @@ mem(void) ...@@ -153,16 +345,706 @@ mem(void)
} }
} }
// More file system tests
// two processes write to the same file descriptor
// is the offset shared? does inode locking work?
void
sharedfd()
{
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 < 100; 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 == 1000 && np == 1000)
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()
{
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 files in same directory
void
createdelete()
{
int pid, i, fd;
int n = 20;
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
//exit();
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()
{
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()
{
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 of the same file
void
concreate()
{
char file[3];
int i, pid, n, fd;
char fa[40];
struct {
unsigned short 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;
unlink(file);
}
printf(1, "concreate ok\n");
}
// directory that uses indirect blocks
void
bigdir()
{
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()
{
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(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(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("./..") != 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", 0) >= 0){
printf(1, "open 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();
}
// unlink dd/dd
// unlink dd
printf(1, "subdir ok\n");
}
void
bigfile()
{
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()
{
int fd;
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");
}
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
puts("usertests starting\n"); printf(1, "usertests starting\n");
opentest();
writetest();
writetest1();
createtest();
mem(); mem();
pipe1(); pipe1();
preempt(); preempt();
exitwait(); exitwait();
puts("usertests finished\n"); fourteen();
bigfile();
subdir();
bigdir(); // slow
concreate();
linktest();
unlinkread();
createdelete();
twofiles();
sharedfd();
exectest();
exit(); exit();
} }
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