xv6/userfs.c
rtm 0e84a0ec6e fix race in holding() check in acquire()
give cpu1 a TSS and gdt for when it enters scheduler()
and a pseudo proc[] entry for each cpu
cpu0 waits for each other cpu to start up
read() for files
2006-08-08 19:58:06 +00:00

41 lines
725 B
C

#include "user.h"
#include "types.h"
#include "fs.h"
// file system tests
char buf[1024];
char *echo_args[] = { "echo", "hello", "goodbye", 0 };
char *cat_args[] = { "cat", "README", 0 };
int
main(void)
{
int fd;
puts("userfs running\n");
block();
if (mknod ("console", T_DEV, 1, 1) < 0)
puts ("mknod failed\n");
else
puts ("made a node\n");
fd = open("echo", 0);
if(fd >= 0){
puts("open echo ok\n");
close(fd);
} else {
puts("open echo failed!\n");
}
fd = open("doesnotexist", 0);
if(fd >= 0){
puts("open doesnotexist succeeded!\n");
close(fd);
} else {
puts("open doesnotexist failed\n");
}
//exec("echo", echo_args);
exec("cat", cat_args);
return 0;
}