src/core/or/cell_queue_st.h

   1 /* Copyright (c) 2001 Matej Pfajfar.
   2  * Copyright (c) 2001-2004, Roger Dingledine.
   3  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   4  * Copyright (c) 2007-2021, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * @file cell_queue_st.h
   9  * @brief Cell queue structures
  10  **/
  11
  12 #ifndef PACKED_CELL_ST_H
  13 #define PACKED_CELL_ST_H
  14
  15 #include "tor_queue.h"
  16
  17 /** A cell as packed for writing to the network. */
  18 struct packed_cell_t {
  19   /** Next cell queued on this circuit. */
  20   TOR_SIMPLEQ_ENTRY(packed_cell_t) next;
  21   char body[CELL_MAX_NETWORK_SIZE]; /**< Cell as packed for network. */
  22   uint32_t inserted_timestamp; /**< Time (in timestamp units) when this cell
  23                                 * was inserted */
  24 };
  25
  26 /** A queue of cells on a circuit, waiting to be added to the
  27  * or_connection_t's outbuf. */
  28 struct cell_queue_t {
  29   /** Linked list of packed_cell_t*/
  30   TOR_SIMPLEQ_HEAD(cell_simpleq_t, packed_cell_t) head;
  31   int n; /**< The number of cells in the queue. */
  32 };
  33
  34 #endif /* !defined(PACKED_CELL_ST_H) */