Esempi in C++ (Cpp) per guestfs_set_memsize

Esempio n. 1

File: boot-analysis.c Progetto: AlphaStaxLLC/libguestfs

/* Common function to create the handle and set various defaults. */
static guestfs_h *
create_handle (void)
{
  guestfs_h *g;
  CLEANUP_FREE char *full_append = NULL;

  g = guestfs_create ();
  if (!g) error (EXIT_FAILURE, errno, "guestfs_create");

  if (memsize != 0)
    if (guestfs_set_memsize (g, memsize) == -1)
      exit (EXIT_FAILURE);

  if (smp >= 2)
    if (guestfs_set_smp (g, smp) == -1)
      exit (EXIT_FAILURE);

  /* This changes some details in appliance/init and enables a
   * detailed trace of calls to initcall functions in the kernel.
   */
  if (asprintf (&full_append,
                "guestfs_boot_analysis=1 "
                "ignore_loglevel initcall_debug "
                "%s",
                append != NULL ? append : "") == -1)
    error (EXIT_FAILURE, errno, "asprintf");

  if (guestfs_set_append (g, full_append) == -1)
    exit (EXIT_FAILURE);

  return g;
}

Esempio n. 2

File: handle.c Progetto: myyyy/libguestfs

static int
parse_environment (guestfs_h *g,
                   char *(*do_getenv) (const void *data, const char *),
                   const void *data)
{
  int memsize, b;
  char *str;

  /* Don't bother checking the return values of functions
   * that cannot return errors.
   */

  str = do_getenv (data, "LIBGUESTFS_TRACE");
  if (str) {
    b = guestfs_int_is_true (str);
    if (b == -1) {
      error (g, _("%s=%s: non-boolean value"), "LIBGUESTFS_TRACE", str);
      return -1;
    }
    guestfs_set_trace (g, b);
  }

  str = do_getenv (data, "LIBGUESTFS_DEBUG");
  if (str) {
    b = guestfs_int_is_true (str);
    if (b == -1) {
      error (g, _("%s=%s: non-boolean value"), "LIBGUESTFS_TRACE", str);
      return -1;
    }
    guestfs_set_verbose (g, b);
  }

  str = do_getenv (data, "LIBGUESTFS_TMPDIR");
  if (str && STRNEQ (str, "")) {
    if (guestfs_set_tmpdir (g, str) == -1)
      return -1;
  }

  str = do_getenv (data, "LIBGUESTFS_CACHEDIR");
  if (str && STRNEQ (str, "")) {
    if (guestfs_set_cachedir (g, str) == -1)
      return -1;
  }

  str = do_getenv (data, "TMPDIR");
  if (guestfs_int_set_env_tmpdir (g, str) == -1)
    return -1;

  str = do_getenv (data, "LIBGUESTFS_PATH");
  if (str && STRNEQ (str, ""))
    guestfs_set_path (g, str);

  str = do_getenv (data, "LIBGUESTFS_HV");
  if (str && STRNEQ (str, ""))
    guestfs_set_hv (g, str);
  else {
    str = do_getenv (data, "LIBGUESTFS_QEMU");
    if (str && STRNEQ (str, ""))
      guestfs_set_hv (g, str);
  }

  str = do_getenv (data, "LIBGUESTFS_APPEND");
  if (str)
    guestfs_set_append (g, str);

  str = do_getenv (data, "LIBGUESTFS_MEMSIZE");
  if (str && STRNEQ (str, "")) {
    if (sscanf (str, "%d", &memsize) != 1) {
      error (g, _("non-numeric value for LIBGUESTFS_MEMSIZE"));
      return -1;
    }
    if (guestfs_set_memsize (g, memsize) == -1) {
      /* set_memsize produces an error message already. */
      return -1;
    }
  }

  str = do_getenv (data, "LIBGUESTFS_BACKEND");
  if (str && STRNEQ (str, "")) {
    if (guestfs_set_backend (g, str) == -1)
      return -1;
  }
  else {
    str = do_getenv (data, "LIBGUESTFS_ATTACH_METHOD");
    if (str && STRNEQ (str, "")) {
      if (guestfs_set_backend (g, str) == -1)
        return -1;
    }
  }

  str = do_getenv (data, "LIBGUESTFS_BACKEND_SETTINGS");
  if (str) {
    CLEANUP_FREE_STRING_LIST char **settings = guestfs_int_split_string (':', str);

    if (settings == NULL) {
      perrorf (g, "split_string: malloc");
      return -1;
    }

    if (guestfs_set_backend_settings (g, settings) == -1)
      return -1;
  }

  return 0;
}