ut_sim.h (2386B)
1 /* 2 * ut-sim.h 3 * 4 * an unreliable transport simulator 5 * (for testing replay databases and suchlike) 6 * 7 * David A. McGrew 8 * Cisco Systems, Inc. 9 */ 10 11 /* 12 * 13 * Copyright (c) 2001-2017, Cisco Systems, Inc. 14 * All rights reserved. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 20 * Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 23 * Redistributions in binary form must reproduce the above 24 * copyright notice, this list of conditions and the following 25 * disclaimer in the documentation and/or other materials provided 26 * with the distribution. 27 * 28 * Neither the name of the Cisco Systems, Inc. nor the names of its 29 * contributors may be used to endorse or promote products derived 30 * from this software without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 35 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 36 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 37 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 38 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 39 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 41 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 43 * OF THE POSSIBILITY OF SUCH DAMAGE. 44 * 45 */ 46 47 #ifndef UT_SIM_H 48 #define UT_SIM_H 49 50 #include "integers.h" /* for uint32_t */ 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 #define UT_BUF 160 /* maximum amount of packet reorder */ 57 58 typedef struct { 59 uint32_t index; 60 uint32_t buffer[UT_BUF]; 61 } ut_connection; 62 63 /* 64 * ut_init(&u) initializes the ut_connection 65 * 66 * this function should always be the first one called on a new 67 * ut_connection 68 */ 69 70 void ut_init(ut_connection *utc); 71 72 /* 73 * ut_next_index(&u) returns the next index from the simulated 74 * unreliable connection 75 */ 76 77 uint32_t ut_next_index(ut_connection *utc); 78 79 #ifdef __cplusplus 80 } 81 #endif 82 83 #endif /* UT_SIM_H */