| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| #include "os_test_priv.h" |
| |
| TEST_CASE(os_mbuf_test_extend) |
| { |
| struct os_mbuf *om; |
| void *v; |
| |
| os_mbuf_test_setup(); |
| |
| /*** Series of successful extensions. */ |
| om = os_mbuf_get_pkthdr(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om != NULL); |
| |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 222); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) == NULL); |
| os_mbuf_test_misc_assert_sane(om, NULL, 0, 0, 18); |
| |
| v = os_mbuf_extend(om, 20); |
| TEST_ASSERT(v != NULL); |
| TEST_ASSERT(v == om->om_data); |
| TEST_ASSERT(om->om_len == 20); |
| |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 202); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) == NULL); |
| os_mbuf_test_misc_assert_sane(om, NULL, 20, 20, 18); |
| |
| v = os_mbuf_extend(om, 100); |
| TEST_ASSERT(v != NULL); |
| TEST_ASSERT(v == om->om_data + 20); |
| TEST_ASSERT(om->om_len == 120); |
| |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 102); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) == NULL); |
| os_mbuf_test_misc_assert_sane(om, NULL, 120, 120, 18); |
| |
| v = os_mbuf_extend(om, 101); |
| TEST_ASSERT(v != NULL); |
| TEST_ASSERT(v == om->om_data + 120); |
| TEST_ASSERT(om->om_len == 221); |
| |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 1); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) == NULL); |
| os_mbuf_test_misc_assert_sane(om, NULL, 221, 221, 18); |
| |
| v = os_mbuf_extend(om, 1); |
| TEST_ASSERT(v != NULL); |
| TEST_ASSERT(v == om->om_data + 221); |
| TEST_ASSERT(om->om_len == 222); |
| |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 0); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) == NULL); |
| os_mbuf_test_misc_assert_sane(om, NULL, 222, 222, 18); |
| |
| /* Overflow into next buffer. */ |
| v = os_mbuf_extend(om, 1); |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 0); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) != NULL); |
| |
| TEST_ASSERT(v == SLIST_NEXT(om, om_next)->om_data); |
| TEST_ASSERT(om->om_len == 222); |
| TEST_ASSERT(SLIST_NEXT(om, om_next)->om_len == 1); |
| os_mbuf_test_misc_assert_sane(om, NULL, 222, 223, 18); |
| |
| /*** Attempt to extend by an amount larger than max buf size fails. */ |
| v = os_mbuf_extend(om, 257); |
| TEST_ASSERT(v == NULL); |
| TEST_ASSERT(OS_MBUF_TRAILINGSPACE(om) == 0); |
| TEST_ASSERT(SLIST_NEXT(om, om_next) != NULL); |
| |
| TEST_ASSERT(om->om_len == 222); |
| TEST_ASSERT(SLIST_NEXT(om, om_next)->om_len == 1); |
| os_mbuf_test_misc_assert_sane(om, NULL, 222, 223, 18); |
| } |