| /** |
| * 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. |
| */ |
| |
| #ifndef APACHE_HTRACE_TEST_SPAN_UTIL_H |
| #define APACHE_HTRACE_TEST_SPAN_UTIL_H |
| |
| #include <stdint.h> |
| #include <unistd.h> /* for size_t */ |
| |
| struct cmp_ctx_s; |
| struct htrace_span; |
| |
| /** |
| * Parses 64-bit hex ID. |
| * |
| * @param in The hex ID string. |
| * @param err (out param) On error, where the error message will be |
| * written. Will be set to the empty string on success. |
| * @param err_len The length of the error buffer. Must be nonzero. |
| */ |
| uint64_t parse_hex_id(const char *in, char *err, size_t err_len); |
| |
| /** |
| * Parses a span JSON entry back into a span. |
| * |
| * This function is just used in unit tests and is not optimized. |
| * |
| * @param in The span string. |
| * @param span (out param) On success, the dynamically allocated span |
| * object. |
| * @param err (out param) On error, where the error message will be |
| * written. Will be set to the empty string on success. |
| * @param err_len The length of the error buffer. Must be nonzero. |
| */ |
| void span_json_parse(const char *in, struct htrace_span **span, |
| char *err, size_t err_len); |
| |
| /** |
| * Compare two spans. |
| * |
| * @param a The first span. |
| * @param b The second span. |
| * |
| * @return A negative number if the first span is less; |
| * 0 if the spans are equivalent; |
| * A positive number if the first span is greater. |
| */ |
| int span_compare(struct htrace_span *a, struct htrace_span *b); |
| |
| /** |
| * Read a span from the provided CMP context. |
| * |
| * @param ctx The CMP context. |
| * @param err (out param) On error, where the error message will be |
| * written. Will be set to the empty string on success. |
| * @param err_len The length of the error buffer. Must be nonzero. |
| * |
| * @return The span on success; NULL otherwise. |
| */ |
| struct htrace_span *span_read_msgpack(struct cmp_ctx_s *ctx, |
| char *err, size_t err_len); |
| |
| #endif |
| |
| // vim:ts=4:sw=4:et |