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annotate src/core/ngx_log.h @ 0:4eff17414a43

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nginx-0.0.1-2002-08-06-20:39:45 import The first code that uses "ngx_" prefix, the previous one used "gx_" prefix. At that point the code is not yet usable. The first draft ideas are dated back to 23.10.2001.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 06 Aug 2002 16:39:45 +0000
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children 34a521b1a148
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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1 #ifndef _NGX_LOG_H_INCLUDED_
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2 #define _NGX_LOG_H_INCLUDED_
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3
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4
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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5 #include <ngx_errno.h>
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6
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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7 typedef enum {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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8 NGX_LOG_EMERG = 0,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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9 NGX_LOG_ALERT,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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10 NGX_LOG_CRIT,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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11 NGX_LOG_ERR,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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12 NGX_LOG_WARN,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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13 NGX_LOG_NOTICE,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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14 NGX_LOG_INFO,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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15 NGX_LOG_DEBUG
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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16 } ngx_log_e;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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17
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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18 /*
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19 "... while ", action = "reading client request headers"
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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20 "... while reading client request headers"
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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21 "... while ", action = "reading client request headers"
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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22 context: pop3 user account
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23 "... while reading client command for 'john_doe'"
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24 */
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25
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26 typedef struct {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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27 int log_level;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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28 char *action;
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29 char *context;
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30 /* char *func(ngx_log_t *log); */
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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31 } ngx_log_t;
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32
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33 #define MAX_ERROR_STR 2048
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34
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35 #define _ ,
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36
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37
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38 #if (HAVE_GCC_VARIADIC_MACROS)
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39
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40 #define HAVE_VARIADIC_MACROS 1
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41
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42 #define ngx_log_error(level, log, args...) \
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43 if (log->log_level >= level) ngx_log_error_core(level, log, args)
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44
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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45 #ifdef NGX_DEBUG
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46 #define ngx_log_debug(log, args...) \
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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47 if (log->log_level == NGX_LOG_DEBUG) \
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48 ngx_log_error_core(NGX_LOG_DEBUG, log, 0, args)
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49 #else
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50 #define ngx_log_debug(log, args...)
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51 #endif
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52
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53 #define ngx_assert(assert, fallback, log, args...) \
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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54 if (!(assert)) { \
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55 if (log->log_level >= NGX_LOG_ALERT) \
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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56 ngx_log_error_core(NGX_LOG_ALERT, log, 0, args); \
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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57 fallback; \
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58 }
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59
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60 void ngx_log_error_core(int level, ngx_log_t *log, ngx_err_t err,
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61 const char *fmt, ...);
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62
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63 #elif (HAVE_C99_VARIADIC_MACROS)
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64
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65 #define HAVE_VARIADIC_MACROS 1
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66
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67 #define ngx_log_error(level, log, ...) \
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68 if (log->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__)
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69
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70 #ifdef NGX_DEBUG
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71 #define ngx_log_debug(log, ...) \
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72 if (log->log_level == NGX_LOG_DEBUG) \
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73 ngx_log_error_core(NGX_LOG_DEBUG, log, 0, __VA_ARGS__)
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74 #else
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75 #define ngx_log_debug(log, ...)
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76 #endif
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77
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78 #define ngx_assert(assert, fallback, log, ...) \
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79 if (!(assert)) { \
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80 if (log->log_level >= NGX_LOG_ALERT) \
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81 ngx_log_error_core(NGX_LOG_ALERT, log, 0, __VA_ARGS__); \
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82 fallback; \
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83 }
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84
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85 void ngx_log_error_core(int level, ngx_log_t *log, ngx_err_t err,
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86 const char *fmt, ...);
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87
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88 #else /* NO VARIADIC MACROS */
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89
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90 #include <stdarg.h>
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91
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92 #ifdef NGX_DEBUG
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93 #define ngx_log_debug(log, text) \
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94 if (log->log_level == NGX_LOG_DEBUG) \
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95 ngx_log_debug_core(log, text)
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96 #else
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97 #define ngx_log_debug(log, text)
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98 #endif
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99
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100 #define ngx_assert(assert, fallback, log, text) \
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101 if (!(assert)) { \
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102 if (log->log_level >= NGX_LOG_ALERT) \
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103 ngx_assert_core(log, text); \
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104 fallback; \
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105 }
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106
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107 void ngx_log_error(int level, ngx_log_t *log, ngx_err_t err,
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108 const char *fmt, ...);
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109 void ngx_log_error_core(int level, ngx_log_t *log, ngx_err_t err,
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110 const char *fmt, va_list args);
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111 void ngx_log_debug_core(ngx_log_t *log, const char *fmt, ...);
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112 void ngx_assert_core(ngx_log_t *log, const char *fmt, ...);
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113
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114
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115 #endif /* VARIADIC MACROS */
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116
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117
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118 #endif /* _NGX_LOG_H_INCLUDED_ */