Esempio n. 1
0
/** Test destroy cell queue with no interference from other queues. */
static void
test_cmux_destroy_cell_queue(void *arg)
{
  circuitmux_t *cmux = NULL;
  channel_t *ch = NULL;
  circuit_t *circ = NULL;
  cell_queue_t *cq = NULL;
  packed_cell_t *pc = NULL;
  tor_libevent_cfg cfg;

  memset(&cfg, 0, sizeof(cfg));

  tor_libevent_initialize(&cfg);
  scheduler_init();

#ifdef ENABLE_MEMPOOLS
  init_cell_pool();
#endif /* ENABLE_MEMPOOLS */
  (void) arg;

  cmux = circuitmux_alloc();
  tt_assert(cmux);
  ch = new_fake_channel();
  ch->has_queued_writes = has_queued_writes;
  ch->wide_circ_ids = 1;

  circ = circuitmux_get_first_active_circuit(cmux, &cq);
  tt_assert(!circ);
  tt_assert(!cq);

  circuitmux_append_destroy_cell(ch, cmux, 100, 10);
  circuitmux_append_destroy_cell(ch, cmux, 190, 6);
  circuitmux_append_destroy_cell(ch, cmux, 30, 1);

  tt_int_op(circuitmux_num_cells(cmux), OP_EQ, 3);

  circ = circuitmux_get_first_active_circuit(cmux, &cq);
  tt_assert(!circ);
  tt_assert(cq);

  tt_int_op(cq->n, OP_EQ, 3);

  pc = cell_queue_pop(cq);
  tt_assert(pc);
  tt_mem_op(pc->body, OP_EQ, "\x00\x00\x00\x64\x04\x0a\x00\x00\x00", 9);
  packed_cell_free(pc);
  pc = NULL;

  tt_int_op(circuitmux_num_cells(cmux), OP_EQ, 2);

 done:
  circuitmux_free(cmux);
  channel_free(ch);
  packed_cell_free(pc);

#ifdef ENABLE_MEMPOOLS
  free_cell_pool();
#endif /* ENABLE_MEMPOOLS */
}
Esempio n. 2
0
static void
test_cq_manip(void *arg)
{
  packed_cell_t *pc1=NULL, *pc2=NULL, *pc3=NULL, *pc4=NULL, *pc_tmp=NULL;
  cell_queue_t cq;
  cell_t cell;
  (void) arg;

  cell_queue_init(&cq);
  tt_int_op(cq.n, OP_EQ, 0);

  pc1 = packed_cell_new();
  pc2 = packed_cell_new();
  pc3 = packed_cell_new();
  pc4 = packed_cell_new();
  tt_assert(pc1 && pc2 && pc3 && pc4);

  tt_ptr_op(NULL, OP_EQ, cell_queue_pop(&cq));

  /* Add and remove a singleton. */
  cell_queue_append(&cq, pc1);
  tt_int_op(cq.n, OP_EQ, 1);
  tt_ptr_op(pc1, OP_EQ, cell_queue_pop(&cq));
  tt_int_op(cq.n, OP_EQ, 0);

  /* Add and remove four items */
  cell_queue_append(&cq, pc4);
  cell_queue_append(&cq, pc3);
  cell_queue_append(&cq, pc2);
  cell_queue_append(&cq, pc1);
  tt_int_op(cq.n, OP_EQ, 4);
  tt_ptr_op(pc4, OP_EQ, cell_queue_pop(&cq));
  tt_ptr_op(pc3, OP_EQ, cell_queue_pop(&cq));
  tt_ptr_op(pc2, OP_EQ, cell_queue_pop(&cq));
  tt_ptr_op(pc1, OP_EQ, cell_queue_pop(&cq));
  tt_int_op(cq.n, OP_EQ, 0);
  tt_ptr_op(NULL, OP_EQ, cell_queue_pop(&cq));

  /* Try a packed copy (wide, then narrow, which is a bit of a cheat, since a
   * real cell queue has only one type.) */
  memset(&cell, 0, sizeof(cell));
  cell.circ_id = 0x12345678;
  cell.command = 10;
  strlcpy((char*)cell.payload, "Lorax ipsum gruvvulus thneed amet, snergelly "
          "once-ler lerkim, sed do barbaloot tempor gluppitus ut labore et "
          "truffula magna aliqua.",
          sizeof(cell.payload));
  cell_queue_append_packed_copy(NULL /*circ*/, &cq, 0 /*exitward*/, &cell,
                                1 /*wide*/, 0 /*stats*/);
  cell.circ_id = 0x2013;
  cell_queue_append_packed_copy(NULL /*circ*/, &cq, 0 /*exitward*/, &cell,
                                0 /*wide*/, 0 /*stats*/);
  tt_int_op(cq.n, OP_EQ, 2);

  pc_tmp = cell_queue_pop(&cq);
  tt_int_op(cq.n, OP_EQ, 1);
  tt_ptr_op(pc_tmp, OP_NE, NULL);
  tt_mem_op(pc_tmp->body, OP_EQ, "\x12\x34\x56\x78\x0a", 5);
  tt_mem_op(pc_tmp->body+5, OP_EQ, cell.payload, sizeof(cell.payload));
  packed_cell_free(pc_tmp);

  pc_tmp = cell_queue_pop(&cq);
  tt_int_op(cq.n, OP_EQ, 0);
  tt_ptr_op(pc_tmp, OP_NE, NULL);
  tt_mem_op(pc_tmp->body, OP_EQ, "\x20\x13\x0a", 3);
  tt_mem_op(pc_tmp->body+3, OP_EQ, cell.payload, sizeof(cell.payload));
  packed_cell_free(pc_tmp);
  pc_tmp = NULL;

  tt_ptr_op(NULL, OP_EQ, cell_queue_pop(&cq));

  /* Now make sure cell_queue_clear works. */
  cell_queue_append(&cq, pc2);
  cell_queue_append(&cq, pc1);
  tt_int_op(cq.n, OP_EQ, 2);
  cell_queue_clear(&cq);
  pc2 = pc1 = NULL; /* prevent double-free */
  tt_int_op(cq.n, OP_EQ, 0);

 done:
  packed_cell_free(pc1);
  packed_cell_free(pc2);
  packed_cell_free(pc3);
  packed_cell_free(pc4);
  packed_cell_free(pc_tmp);

  cell_queue_clear(&cq);
}