1 /* (c) 2004-2007 Andrei Nigmatulin */ 2 3 #ifndef ZLOG_H 4 #define ZLOG_H 1 5 6 #include <stdarg.h> 7 #include <sys/types.h> 8 9 #define zlog(flags,...) zlog_ex(__func__, __LINE__, flags, __VA_ARGS__) 10 #define zlog_msg(flags, prefix, msg) zlog_msg_ex(__func__, __LINE__, flags, prefix, msg) 11 12 struct timeval; 13 14 typedef unsigned char zlog_bool; 15 16 #define ZLOG_TRUE 1 17 #define ZLOG_FALSE 0 18 19 void zlog_set_external_logger(void (*logger)(int, char *, size_t)); 20 int zlog_set_fd(int new_fd); 21 int zlog_set_level(int new_value); 22 int zlog_set_limit(int new_value); 23 int zlog_set_buffering(zlog_bool buffering); 24 const char *zlog_get_level_name(int log_level); 25 void zlog_set_launched(void); 26 27 size_t zlog_print_time(struct timeval *tv, char *timebuf, size_t timebuf_len); 28 29 void vzlog(const char *function, int line, int flags, const char *fmt, va_list args); 30 void zlog_ex(const char *function, int line, int flags, const char *fmt, ...) 31 __attribute__ ((format(printf,4,5))); 32 33 void zlog_msg_ex(const char *function, int line, int flags, 34 const char *prefix, const char *msg); 35 36 #ifdef HAVE_SYSLOG_H 37 extern const int syslog_priorities[]; 38 #endif 39 40 /* keep this same as FCGI_ERROR */ 41 enum { 42 ZLOG_DEBUG = 1, 43 ZLOG_NOTICE = 2, 44 ZLOG_WARNING = 3, 45 ZLOG_ERROR = 4, 46 ZLOG_ALERT = 5, 47 }; 48 49 #define ZLOG_LEVEL_MASK 7 50 51 #define ZLOG_HAVE_ERRNO 0x100 52 53 #define ZLOG_SYSERROR (ZLOG_ERROR | ZLOG_HAVE_ERRNO) 54 55 #define ZLOG_SYSLOG -2 56 57 /* STREAM */ 58 59 struct zlog_stream_buffer { 60 char *data; 61 size_t size; 62 }; 63 64 struct zlog_stream { 65 int flags; 66 unsigned int use_syslog:1; 67 unsigned int use_fd:1; 68 unsigned int use_buffer:1; 69 unsigned int use_stderr:1; 70 unsigned int prefix_buffer:1; 71 unsigned int finished:1; 72 unsigned int full:1; 73 unsigned int wrap:1; 74 unsigned int msg_quote:1; 75 unsigned int decorate:1; 76 unsigned int is_stdout:1; 77 int fd; 78 int line; 79 int child_pid; 80 const char *function; 81 struct zlog_stream_buffer buf; 82 size_t len; 83 size_t buf_init_size; 84 size_t prefix_len; 85 char *msg_prefix; 86 size_t msg_prefix_len; 87 char *msg_suffix; 88 size_t msg_suffix_len; 89 char *msg_final_suffix; 90 size_t msg_final_suffix_len; 91 }; 92 93 void zlog_stream_init(struct zlog_stream *stream, int flags); 94 void zlog_stream_init_ex(struct zlog_stream *stream, int flags, int fd); 95 void zlog_stream_set_decorating(struct zlog_stream *stream, zlog_bool decorate); 96 void zlog_stream_set_wrapping(struct zlog_stream *stream, zlog_bool wrap); 97 void zlog_stream_set_is_stdout(struct zlog_stream *stream, zlog_bool is_stdout); 98 void zlog_stream_set_child_pid(struct zlog_stream *stream, int child_pid); 99 void zlog_stream_set_msg_quoting(struct zlog_stream *stream, zlog_bool quote); 100 zlog_bool zlog_stream_set_msg_prefix(struct zlog_stream *stream, const char *fmt, ...) 101 __attribute__ ((format(printf,2,3))); 102 zlog_bool zlog_stream_set_msg_suffix( 103 struct zlog_stream *stream, const char *suffix, const char *final_suffix); 104 #define zlog_stream_prefix(stream) \ 105 zlog_stream_prefix_ex(stream, __func__, __LINE__) 106 ssize_t zlog_stream_prefix_ex(struct zlog_stream *stream, const char *function, int line); 107 ssize_t zlog_stream_format(struct zlog_stream *stream, const char *fmt, ...) 108 __attribute__ ((format(printf,2,3))); 109 ssize_t zlog_stream_vformat(struct zlog_stream *stream, const char *fmt, va_list args); 110 ssize_t zlog_stream_str(struct zlog_stream *stream, const char *str, size_t str_len); 111 zlog_bool zlog_stream_finish(struct zlog_stream *stream); 112 void zlog_stream_destroy(struct zlog_stream *stream); 113 zlog_bool zlog_stream_close(struct zlog_stream *stream); 114 115 /* default log limit */ 116 #define ZLOG_DEFAULT_LIMIT 1024 117 /* minimum log limit */ 118 #define ZLOG_MIN_LIMIT 512 119 /* default log buffering */ 120 #define ZLOG_DEFAULT_BUFFERING 1 121 122 #endif 123
