nxt_log.h (63:b79fe37d9f24) nxt_log.h (122:d18727e877c6)
1
2/*
3 * Copyright (C) Igor Sysoev
4 * Copyright (C) NGINX, Inc.
5 */
6
7#ifndef _NXT_LOG_H_INCLUDED_
8#define _NXT_LOG_H_INCLUDED_
9
10
11#define NXT_LOG_EMERG 0
12#define NXT_LOG_ALERT 1
13#define NXT_LOG_CRIT 2
14#define NXT_LOG_ERR 3
15#define NXT_LOG_WARN 4
16#define NXT_LOG_NOTICE 5
17#define NXT_LOG_INFO 6
18#define NXT_LOG_DEBUG 7
19
20
21#define NXT_MAX_ERROR_STR 2048
22
23
24typedef void nxt_cdecl (*nxt_log_handler_t)(nxt_uint_t level, nxt_log_t *log,
25 const char *fmt, ...);
26typedef u_char *(*nxt_log_ctx_handler_t)(void *ctx, u_char *pos, u_char *end);
27
28
29struct nxt_log_s {
30 uint32_t level;
31 uint32_t ident;
32 nxt_log_handler_t handler;
33 nxt_log_ctx_handler_t ctx_handler;
34 void *ctx;
35};
36
37
38NXT_EXPORT void nxt_log_start(const char *name);
39NXT_EXPORT nxt_log_t *nxt_log_set_ctx(nxt_log_t *log,
40 nxt_log_ctx_handler_t handler, void *ctx);
41
42NXT_EXPORT void nxt_cdecl nxt_log_handler(nxt_uint_t level, nxt_log_t *log,
43 const char *fmt, ...);
44
45
46#define \
47nxt_log_level_enough(log, level) \
48 ((log)->level >= (level))
49
50
51#define \
52nxt_log_emerg(_log, ...) \
53 do { \
54 nxt_log_t *_log_ = (_log); \
55 \
56 _log_->handler(NXT_LOG_EMERG, _log_, __VA_ARGS__); \
57 } while (0)
58
59
60#define \
61nxt_log_alert(_log, ...) \
62 do { \
63 nxt_log_t *_log_ = (_log); \
64 \
65 _log_->handler(NXT_LOG_ALERT, _log_, __VA_ARGS__); \
66 } while (0)
67
68
69#define nxt_log(task, _level, ...) \
70 do { \
71 nxt_log_t *log = (task)->log; \
72 nxt_uint_t _level_ = (_level); \
73 \
74 if (nxt_slow_path(log->level >= _level_)) { \
75 log->handler(_level_, log, __VA_ARGS__); \
76 } \
77 } while (0)
78
79
80#define nxt_trace(task, ...) \
81 do { \
82 nxt_log_t *log = (task)->log; \
83 \
84 if (nxt_slow_path(log->level >= NXT_LOG_NOTICE || nxt_trace)) { \
85 log->handler(NXT_LOG_NOTICE, log, __VA_ARGS__); \
86 } \
87 } while (0)
88
89
90#define \
91nxt_log_error(_level, _log, ...) \
92 do { \
93 nxt_log_t *_log_ = (_log); \
94 nxt_uint_t _level_ = (_level); \
95 \
96 if (nxt_slow_path(_log_->level >= _level_)) { \
97 _log_->handler(_level_, _log_, __VA_ARGS__); \
98 } \
99 } while (0)
100
101
102#if (NXT_DEBUG)
103
104#define nxt_debug(task, ...) \
105 do { \
106 nxt_log_t *log = (task)->log; \
107 \
108 if (nxt_slow_path(log->level == NXT_LOG_DEBUG || nxt_debug)) { \
109 log->handler(NXT_LOG_DEBUG, log, __VA_ARGS__); \
110 } \
111 } while (0)
112
113
114#define \
115nxt_log_debug(_log, ...) \
116 do { \
117 nxt_log_t *_log_ = (_log); \
118 \
119 if (nxt_slow_path(_log_->level == NXT_LOG_DEBUG || nxt_debug)) { \
120 _log_->handler(NXT_LOG_DEBUG, _log_, __VA_ARGS__); \
121 } \
122 } while (0)
123
124
1
2/*
3 * Copyright (C) Igor Sysoev
4 * Copyright (C) NGINX, Inc.
5 */
6
7#ifndef _NXT_LOG_H_INCLUDED_
8#define _NXT_LOG_H_INCLUDED_
9
10
11#define NXT_LOG_EMERG 0
12#define NXT_LOG_ALERT 1
13#define NXT_LOG_CRIT 2
14#define NXT_LOG_ERR 3
15#define NXT_LOG_WARN 4
16#define NXT_LOG_NOTICE 5
17#define NXT_LOG_INFO 6
18#define NXT_LOG_DEBUG 7
19
20
21#define NXT_MAX_ERROR_STR 2048
22
23
24typedef void nxt_cdecl (*nxt_log_handler_t)(nxt_uint_t level, nxt_log_t *log,
25 const char *fmt, ...);
26typedef u_char *(*nxt_log_ctx_handler_t)(void *ctx, u_char *pos, u_char *end);
27
28
29struct nxt_log_s {
30 uint32_t level;
31 uint32_t ident;
32 nxt_log_handler_t handler;
33 nxt_log_ctx_handler_t ctx_handler;
34 void *ctx;
35};
36
37
38NXT_EXPORT void nxt_log_start(const char *name);
39NXT_EXPORT nxt_log_t *nxt_log_set_ctx(nxt_log_t *log,
40 nxt_log_ctx_handler_t handler, void *ctx);
41
42NXT_EXPORT void nxt_cdecl nxt_log_handler(nxt_uint_t level, nxt_log_t *log,
43 const char *fmt, ...);
44
45
46#define \
47nxt_log_level_enough(log, level) \
48 ((log)->level >= (level))
49
50
51#define \
52nxt_log_emerg(_log, ...) \
53 do { \
54 nxt_log_t *_log_ = (_log); \
55 \
56 _log_->handler(NXT_LOG_EMERG, _log_, __VA_ARGS__); \
57 } while (0)
58
59
60#define \
61nxt_log_alert(_log, ...) \
62 do { \
63 nxt_log_t *_log_ = (_log); \
64 \
65 _log_->handler(NXT_LOG_ALERT, _log_, __VA_ARGS__); \
66 } while (0)
67
68
69#define nxt_log(task, _level, ...) \
70 do { \
71 nxt_log_t *log = (task)->log; \
72 nxt_uint_t _level_ = (_level); \
73 \
74 if (nxt_slow_path(log->level >= _level_)) { \
75 log->handler(_level_, log, __VA_ARGS__); \
76 } \
77 } while (0)
78
79
80#define nxt_trace(task, ...) \
81 do { \
82 nxt_log_t *log = (task)->log; \
83 \
84 if (nxt_slow_path(log->level >= NXT_LOG_NOTICE || nxt_trace)) { \
85 log->handler(NXT_LOG_NOTICE, log, __VA_ARGS__); \
86 } \
87 } while (0)
88
89
90#define \
91nxt_log_error(_level, _log, ...) \
92 do { \
93 nxt_log_t *_log_ = (_log); \
94 nxt_uint_t _level_ = (_level); \
95 \
96 if (nxt_slow_path(_log_->level >= _level_)) { \
97 _log_->handler(_level_, _log_, __VA_ARGS__); \
98 } \
99 } while (0)
100
101
102#if (NXT_DEBUG)
103
104#define nxt_debug(task, ...) \
105 do { \
106 nxt_log_t *log = (task)->log; \
107 \
108 if (nxt_slow_path(log->level == NXT_LOG_DEBUG || nxt_debug)) { \
109 log->handler(NXT_LOG_DEBUG, log, __VA_ARGS__); \
110 } \
111 } while (0)
112
113
114#define \
115nxt_log_debug(_log, ...) \
116 do { \
117 nxt_log_t *_log_ = (_log); \
118 \
119 if (nxt_slow_path(_log_->level == NXT_LOG_DEBUG || nxt_debug)) { \
120 _log_->handler(NXT_LOG_DEBUG, _log_, __VA_ARGS__); \
121 } \
122 } while (0)
123
124
125#define nxt_debug_alloc(...)
125#define nxt_debug_alloc(_fmt, ARGS...) \
126 nxt_thread_log_debug("%08p: " _fmt, mp, ##ARGS)
126
127#else
128
129#define nxt_debug(...)
130#define nxt_debug_alloc(...)
131
132#define \
133nxt_log_debug(...)
134
135#endif
136
137
138#define \
139nxt_main_log_emerg(...) \
140 nxt_log_emerg(&nxt_main_log, __VA_ARGS__)
141
142
143#define \
144nxt_main_log_alert(...) \
145 nxt_log_alert(&nxt_main_log, __VA_ARGS__)
146
147
148#define \
149nxt_main_log_error(level, ...) \
150 nxt_log_error(level, &nxt_main_log, __VA_ARGS__)
151
152
153#define \
154nxt_main_log_debug(...) \
155 nxt_log_debug(&nxt_main_log, __VA_ARGS__)
156
157
158NXT_EXPORT extern nxt_uint_t nxt_debug;
159NXT_EXPORT extern nxt_uint_t nxt_trace;
160NXT_EXPORT extern nxt_log_t nxt_main_log;
161NXT_EXPORT extern nxt_str_t nxt_log_levels[];
162
163
164#endif /* _NXT_LOG_H_INCLUDED_ */
127
128#else
129
130#define nxt_debug(...)
131#define nxt_debug_alloc(...)
132
133#define \
134nxt_log_debug(...)
135
136#endif
137
138
139#define \
140nxt_main_log_emerg(...) \
141 nxt_log_emerg(&nxt_main_log, __VA_ARGS__)
142
143
144#define \
145nxt_main_log_alert(...) \
146 nxt_log_alert(&nxt_main_log, __VA_ARGS__)
147
148
149#define \
150nxt_main_log_error(level, ...) \
151 nxt_log_error(level, &nxt_main_log, __VA_ARGS__)
152
153
154#define \
155nxt_main_log_debug(...) \
156 nxt_log_debug(&nxt_main_log, __VA_ARGS__)
157
158
159NXT_EXPORT extern nxt_uint_t nxt_debug;
160NXT_EXPORT extern nxt_uint_t nxt_trace;
161NXT_EXPORT extern nxt_log_t nxt_main_log;
162NXT_EXPORT extern nxt_str_t nxt_log_levels[];
163
164
165#endif /* _NXT_LOG_H_INCLUDED_ */