1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef _CUTILS_KLOG_H_ 18 #define _CUTILS_KLOG_H_ 19 20 #include <sys/cdefs.h> 21 #include <sys/uio.h> 22 #include <stdarg.h> 23 24 __BEGIN_DECLS 25 26 void klog_init(void); 27 int klog_get_level(void); 28 void klog_set_level(int level); 29 /* TODO: void klog_close(void); - and make klog_fd users thread safe. */ 30 31 void klog_write(int level, const char *fmt, ...) 32 __attribute__ ((format(printf, 2, 3))); 33 void klog_writev(int level, const struct iovec* iov, int iov_count); 34 35 __END_DECLS 36 37 #define KLOG_ERROR_LEVEL 3 38 #define KLOG_WARNING_LEVEL 4 39 #define KLOG_NOTICE_LEVEL 5 40 #define KLOG_INFO_LEVEL 6 41 #define KLOG_DEBUG_LEVEL 7 42 43 #define KLOG_ERROR(tag,x...) klog_write(KLOG_ERROR_LEVEL, "<3>" tag ": " x) 44 #define KLOG_WARNING(tag,x...) klog_write(KLOG_WARNING_LEVEL, "<4>" tag ": " x) 45 #define KLOG_NOTICE(tag,x...) klog_write(KLOG_NOTICE_LEVEL, "<5>" tag ": " x) 46 #define KLOG_INFO(tag,x...) klog_write(KLOG_INFO_LEVEL, "<6>" tag ": " x) 47 #define KLOG_DEBUG(tag,x...) klog_write(KLOG_DEBUG_LEVEL, "<7>" tag ": " x) 48 49 #define KLOG_DEFAULT_LEVEL 3 /* messages <= this level are logged */ 50 51 #endif 52