| /* |
| * 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_pullup) |
| { |
| struct os_mbuf *om; |
| struct os_mbuf *om2; |
| int rc; |
| |
| os_mbuf_test_setup(); |
| |
| /*** Free when too much os_mbuf_test_data is requested. */ |
| om = os_mbuf_get_pkthdr(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om != NULL); |
| |
| om = os_mbuf_pullup(om, 1); |
| TEST_ASSERT(om == NULL); |
| |
| /*** No effect when all os_mbuf_test_data is already at the start. */ |
| om = os_mbuf_get_pkthdr(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om != NULL); |
| |
| rc = os_mbuf_append(om, os_mbuf_test_data, 1); |
| TEST_ASSERT_FATAL(rc == 0); |
| os_mbuf_test_misc_assert_sane(om, os_mbuf_test_data, 1, 1, 18); |
| |
| om = os_mbuf_pullup(om, 1); |
| os_mbuf_test_misc_assert_sane(om, os_mbuf_test_data, 1, 1, 18); |
| |
| /*** Spread os_mbuf_test_data across four mbufs. */ |
| om2 = os_mbuf_get(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om2 != NULL); |
| rc = os_mbuf_append(om2, os_mbuf_test_data + 1, 1); |
| TEST_ASSERT_FATAL(rc == 0); |
| os_mbuf_concat(om, om2); |
| |
| om2 = os_mbuf_get(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om2 != NULL); |
| rc = os_mbuf_append(om2, os_mbuf_test_data + 2, 1); |
| TEST_ASSERT_FATAL(rc == 0); |
| os_mbuf_concat(om, om2); |
| |
| om2 = os_mbuf_get(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om2 != NULL); |
| rc = os_mbuf_append(om2, os_mbuf_test_data + 3, 1); |
| TEST_ASSERT_FATAL(rc == 0); |
| os_mbuf_concat(om, om2); |
| |
| TEST_ASSERT_FATAL(OS_MBUF_PKTLEN(om) == 4); |
| |
| om = os_mbuf_pullup(om, 4); |
| os_mbuf_test_misc_assert_sane(om, os_mbuf_test_data, 4, 4, 18); |
| |
| os_mbuf_free_chain(om); |
| |
| /*** Require an allocation. */ |
| om = os_mbuf_get_pkthdr(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om != NULL); |
| |
| om->om_data += 100; |
| rc = os_mbuf_append(om, os_mbuf_test_data, 100); |
| TEST_ASSERT_FATAL(rc == 0); |
| |
| om2 = os_mbuf_get(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om2 != NULL); |
| rc = os_mbuf_append(om2, os_mbuf_test_data + 100, 100); |
| TEST_ASSERT_FATAL(rc == 0); |
| os_mbuf_concat(om, om2); |
| |
| om = os_mbuf_pullup(om, 200); |
| os_mbuf_test_misc_assert_sane(om, os_mbuf_test_data, 200, 200, 18); |
| |
| /*** Partial pullup. */ |
| om = os_mbuf_get_pkthdr(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om != NULL); |
| |
| om->om_data += 100; |
| rc = os_mbuf_append(om, os_mbuf_test_data, 100); |
| TEST_ASSERT_FATAL(rc == 0); |
| |
| om2 = os_mbuf_get(&os_mbuf_pool, 10); |
| TEST_ASSERT_FATAL(om2 != NULL); |
| rc = os_mbuf_append(om2, os_mbuf_test_data + 100, 100); |
| TEST_ASSERT_FATAL(rc == 0); |
| os_mbuf_concat(om, om2); |
| |
| om = os_mbuf_pullup(om, 150); |
| os_mbuf_test_misc_assert_sane(om, os_mbuf_test_data, 150, 200, 18); |
| } |