#ifndef _NGX_LOG_H_INCLUDED_ #define _NGX_LOG_H_INCLUDED_ #include #include #define NGX_LOG_STDERR 0 #define NGX_LOG_EMERG 1 #define NGX_LOG_ALERT 2 #define NGX_LOG_CRIT 3 #define NGX_LOG_ERR 4 #define NGX_LOG_WARN 5 #define NGX_LOG_NOTICE 6 #define NGX_LOG_INFO 7 #define NGX_LOG_DEBUG 8 #define NGX_LOG_DEBUG_CORE 0x10 #define NGX_LOG_DEBUG_ALLOC 0x20 #define NGX_LOG_DEBUG_EVENT 0x40 #define NGX_LOG_DEBUG_HTTP 0x80 #define NGX_LOG_DEBUG_FIRST NGX_LOG_DEBUG_CORE #define NGX_LOG_DEBUG_LAST NGX_LOG_DEBUG_HTTP #define NGX_LOG_DEBUG_ALL 0xfffffff0 /* "[%time] [%level] %pid#%tid: %message:(%errno)%errstr, while %action" " %peer and while processing %context" ---- message = "recv() failed"; errno = 32; action = "reading request headers from client"; peer = "192.168.1.1"; context = "URL /" "[2002/08/20 12:00:00] [error] 412#3: recv() failed (32: Broken pipe)" " while reading request headers from client 192.168.1.1" " and while processing URL /" ---- message = "recv() failed"; errno = 32; ngx_http_proxy_error_context_t: action = "reading headers from server %s for client %s and " "while processing %s" backend = "127.0.0.1"; peer = "192.168.1.1"; context = "URL /" "[2002/08/20 12:00:00] [error] 412#3: recv() failed (32: Broken pipe)" " while reading headers from backend 127.0.0.1" " for client 192.168.1.1 and while processing URL /" ---- "[alert] 412#3: ngx_alloc: malloc() 102400 bytes failed (12: Cannot " "allocate memory) while reading request headers from client 192.168.1.1" " and while processing URL /" OLD: "... while ", action = "reading client request headers" "... while reading client request headers" "... while ", action = "reading client request headers" context: pop3 user account "... while reading client command for 'john_doe'" */ typedef size_t (*ngx_log_handler_pt) (void *ctx, char *buf, size_t len); struct ngx_log_s { ngx_uint_t log_level; ngx_open_file_t *file; void *data; ngx_log_handler_pt handler; }; #define MAX_ERROR_STR 2048 /*********************************/ #if (HAVE_GCC_VARIADIC_MACROS) #define HAVE_VARIADIC_MACROS 1 #define ngx_log_error(level, log, args...) \ if (log->log_level >= level) ngx_log_error_core(level, log, args) void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...); /*********************************/ #elif (HAVE_C99_VARIADIC_MACROS) #define HAVE_VARIADIC_MACROS 1 #define ngx_log_error(level, log, ...) \ if (log->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__) void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...); /*********************************/ #else /* NO VARIADIC MACROS */ #define HAVE_VARIADIC_MACROS 0 void ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...); void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, va_list args); void ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...); void ngx_assert_core(ngx_log_t *log, const char *fmt, ...); #endif /* VARIADIC MACROS */ /*********************************/ #if (NGX_DEBUG) #if (HAVE_VARIADIC_MACROS) #define ngx_log_debug0(level, log, err, fmt) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt) #define ngx_log_debug1(level, log, err, fmt, arg1) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1) #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1, arg2) #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1, arg2, arg3) #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, arg1, arg2, arg3, arg4) #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, \ arg1, arg2, arg3, arg4, arg5) #define ngx_log_debug6(level, log, err, fmt, \ arg1, arg2, arg3, arg4, arg5, arg6) \ if (log->log_level & level) \ ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, \ arg1, arg2, arg3, arg4, arg5, arg6) #else /* NO VARIADIC MACROS */ #define ngx_log_debug0(level, log, err, fmt) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt) #define ngx_log_debug1(level, log, err, fmt, arg1) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt, arg1) #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt, arg1, arg2) #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3) #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4) #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5) #define ngx_log_debug6(level, log, err, fmt, \ arg1, arg2, arg3, arg4, arg5, arg6) \ if (log->log_level & level) \ ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6) #endif #else /* NO NGX_DEBUG */ #define ngx_log_debug0(level, log, err, fmt) #define ngx_log_debug1(level, log, err, fmt, arg1) #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) #define ngx_log_debug6(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6) #endif /*********************************/ #define ngx_log_alloc_log(pool, log) ngx_palloc(pool, log, sizeof(ngx_log_t)) #define ngx_log_copy_log(new, old) ngx_memcpy(new, old, sizeof(ngx_log_t)) ngx_log_t *ngx_log_init_errlog(); ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args); char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log); extern ngx_module_t ngx_errlog_module; #endif /* _NGX_LOG_H_INCLUDED_ */