| /** |
| * 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_UTIL_LOG_H |
| #define APACHE_HTRACE_UTIL_LOG_H |
| |
| /** |
| * @file log.h |
| * |
| * Functions for HTrace logging. |
| * |
| * This is an internal header, not intended for external use. |
| */ |
| |
| struct htrace_conf; |
| |
| /** |
| * Allocate a new htrace_log. |
| * |
| * @param conf The configuration. Will be deep copied. |
| * |
| * @return The htrace_log, or NULL on OOM. |
| */ |
| struct htrace_log *htrace_log_alloc(const struct htrace_conf *conf); |
| |
| /** |
| * A thread-safe version of the strerror call. |
| * |
| * @param err The POSIX error code. |
| * |
| * @return A static or thread-local error string. |
| */ |
| const char *terror(int err); |
| |
| /** |
| * Free an htrace_log. |
| * |
| * @param lg The log to be freed. |
| */ |
| void htrace_log_free(struct htrace_log *lg); |
| |
| /** |
| * Create an htrace log message. |
| * |
| * @param lg The log to use. |
| * @param fmt The format string to use. |
| * @param ... Printf-style variable length arguments. |
| */ |
| void htrace_log(struct htrace_log *lg, const char *fmt, ...) |
| __attribute__((format(printf, 2, 3))); |
| |
| #endif |
| |
| // vim: ts=4:sw=4:et |