8a8be1b8c3
fix acquire() to cli() *before* incrementing nlock make T_SYSCALL a trap gate, not an interrupt gate sadly, various crashes if you hold down a keyboard key...
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
#include "user.h"
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#include "types.h"
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#include "fs.h"
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#include "fcntl.h"
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// file system tests
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char buf[2000];
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char *echo_args[] = { "echo", "hello", "goodbye", 0 };
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char *cat_args[] = { "cat", "README", 0 };
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int
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main(void)
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{
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int fd;
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int i;
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int stdout;
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// printf(stdout, "userfs running\n");
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if (mknod ("console", T_DEV, 1, 1) < 0)
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puts ("mknod failed\n");
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else
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puts ("made a node\n");
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stdout = open("console", O_WRONLY);
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printf(stdout, "userfs is running\n");
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block();
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fd = open("echo", 0);
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if(fd >= 0){
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printf(stdout, "open echo ok\n");
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close(fd);
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} else {
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printf(stdout, "open echo failed!\n");
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}
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fd = open("doesnotexist", 0);
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if(fd >= 0){
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printf(stdout, "open doesnotexist succeeded!\n");
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close(fd);
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} else {
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printf(stdout, "open doesnotexist failed\n");
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}
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fd = open("doesnotexist", O_CREATE|O_RDWR);
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if(fd >= 0){
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printf(stdout, "creat doesnotexist succeeded\n");
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} else {
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printf(stdout, "error: creat doesnotexist failed!\n");
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}
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for (i = 0; i < 100; i++) {
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if (write (fd, "aaaaaaaaaa", 10) != 10) {
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printf(stdout, "error: write new file failed\n");
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}
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if (write (fd, "bbbbbbbbbb", 10) != 10) {
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printf(stdout, "error: write new file failed\n");
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}
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}
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printf(stdout, "writes done\n");
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close(fd);
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fd = open("doesnotexist", O_RDONLY);
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if(fd >= 0){
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printf(stdout, "open doesnotexist succeeded\n");
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} else {
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printf(stdout, "error: open doesnotexist failed!\n");
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}
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i = read(fd, buf, 10000);
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if (i == 2000) {
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printf(stdout, "read succeeded\\n");
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} else {
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printf(stdout, "read failed\n");
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}
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close(fd);
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//exec("echo", echo_args);
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printf(stdout, "about to do exec\n");
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exec("cat", cat_args);
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return 0;
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}
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