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#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;
while(1) {
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;
}
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