C++ (Cpp) copy_in_string Beispiele

Beispiel #1

Datei: syscall.c Projekt: lilwilsond2/Pintos3

/* Open system call. */
static int
sys_open (const char *ufile) 
{
  char *kfile = copy_in_string (ufile);
  struct file_descriptor *fd;
  int handle = -1;
 
  fd = malloc (sizeof *fd);
  if (fd != NULL)
    {
      lock_acquire (&fs_lock);
      fd->file = filesys_open (kfile);
      if (fd->file != NULL)
        {
          struct thread *cur = thread_current ();
          handle = fd->handle = cur->next_handle++;
          list_push_front (&cur->fds, &fd->elem);
        }
      else 
        free (fd);
      lock_release (&fs_lock);
    }
  
  palloc_free_page (kfile);
  return handle;
}

Beispiel #2

Datei: syscall.c Projekt: johnmiked15/PintOS2

/* Open system call. */
static int
sys_open (const char *ufile) 
{
  char *kfile = copy_in_string (ufile);
  struct file_descriptor *fd;
  int handle = -1;
 
  fd = calloc (1, sizeof *fd);
  if (fd != NULL)
    {
      struct inode *inode = filesys_open (kfile);
      if (inode != NULL)
        {
          if (inode_get_type (inode) == FILE_INODE)
            fd->file = file_open (inode);
          else
            fd->dir = dir_open (inode);
          if (fd->file != NULL || fd->dir != NULL)
            {
              struct thread *cur = thread_current ();
              handle = fd->handle = cur->next_handle++;
              list_push_front (&cur->fds, &fd->elem);
            }
          else 
            {
              free (fd);
              inode_close (inode);
            }
        }
    }
  
  palloc_free_page (kfile);
  return handle;
}

Beispiel #3

Datei: syscall.c Projekt: johnmiked15/PintOS2

/* Remove system call. */
static int
sys_remove (const char *ufile) 
{
  char *kfile = copy_in_string (ufile);
  bool ok = filesys_remove (kfile);
  palloc_free_page (kfile);
 
  return ok;
}

Beispiel #4

Datei: syscall.c Projekt: johnmiked15/PintOS2

/* Create system call. */
static int
sys_create (const char *ufile, unsigned initial_size) 
{
  char *kfile = copy_in_string (ufile);
  bool ok = filesys_create (kfile, initial_size, FILE_INODE);
  palloc_free_page (kfile);
 
  return ok;
}

Beispiel #5

Datei: syscall.c Projekt: johnmiked15/PintOS2

/* Exec system call. */
static int
sys_exec (const char *ufile) 
{
  tid_t tid;
  char *kfile = copy_in_string (ufile);
 
  tid = process_execute (kfile);
 
  palloc_free_page (kfile);
 
  return tid;
}

Beispiel #6

Datei: syscall.c Projekt: lilwilsond2/Pintos3

/* Remove system call. */
static int
sys_remove (const char *ufile) 
{
  char *kfile = copy_in_string (ufile);
  bool ok;

  lock_acquire (&fs_lock);
  ok = filesys_remove (kfile);
  lock_release (&fs_lock);

  palloc_free_page (kfile);
 
  return ok;
}

Beispiel #7

Datei: syscall.c Projekt: lilwilsond2/Pintos3

/* Create system call. */
static int
sys_create (const char *ufile, unsigned initial_size) 
{
  char *kfile = copy_in_string (ufile);
  bool ok;

  lock_acquire (&fs_lock);
  ok = filesys_create (kfile, initial_size);
  lock_release (&fs_lock);

  palloc_free_page (kfile);
 
  return ok;
}

Beispiel #8

Datei: syscall.c Projekt: lilwilsond2/Pintos3

/* Exec system call. */
static int
sys_exec (const char *ufile) 
{
  tid_t tid;
  char *kfile = copy_in_string (ufile);

  lock_acquire (&fs_lock);
  tid = process_execute (kfile);
  lock_release (&fs_lock);
 
  palloc_free_page (kfile);
 
  return tid;
}