1 /* utils/logger.h 2 ** 3 ** Copyright 2007, The Android Open Source Project 4 ** 5 ** This file is dual licensed. It may be redistributed and/or modified 6 ** under the terms of the Apache 2.0 License OR version 2 of the GNU 7 ** General Public License. 8 */ 9 10 #ifndef _UTILS_LOGGER_H 11 #define _UTILS_LOGGER_H 12 13 #include <stdint.h> 14 15 struct logger_entry { 16 uint16_t len; /* length of the payload */ 17 uint16_t __pad; /* no matter what, we get 2 bytes of padding */ 18 int32_t pid; /* generating process's pid */ 19 int32_t tid; /* generating process's tid */ 20 int32_t sec; /* seconds since Epoch */ 21 int32_t nsec; /* nanoseconds */ 22 char msg[0]; /* the entry's payload */ 23 }; 24 25 #define LOGGER_LOG_MAIN "log/main" 26 #define LOGGER_LOG_RADIO "log/radio" 27 #define LOGGER_LOG_EVENTS "log/events" 28 #define LOGGER_LOG_SYSTEM "log/system" 29 30 #define LOGGER_ENTRY_MAX_LEN (4*1024) 31 #define LOGGER_ENTRY_MAX_PAYLOAD \ 32 (LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry)) 33 34 #ifdef HAVE_IOCTL 35 36 #include <sys/ioctl.h> 37 38 #define __LOGGERIO 0xAE 39 40 #define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */ 41 #define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */ 42 #define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */ 43 #define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */ 44 45 #endif // HAVE_IOCTL 46 47 #endif /* _UTILS_LOGGER_H */ 48