Mercurial > hg > nginx-vendor-current
view src/core/ngx_log.c @ 196:8759b346e431 NGINX_0_3_45
nginx 0.3.45
*) Feature: the "ssl_verify_client", "ssl_verify_depth", and
"ssl_client_certificate" directives.
*) Change: the $request_method variable now returns the main request
method.
*) Change: the ° symbol codes were changed in koi-win conversion
table.
*) Feature: the euro и N symbols were added to koi-win conversion table.
*) Bugfix: if nginx distributed the requests among several backends and
some backend failed, then requests intended for this backend was
directed to one live backend only instead of being distributed among
the rest.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Sat, 06 May 2006 00:00:00 +0400 |
parents | af37b7cb6698 |
children | 6ae1357b7b7c |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_command_t ngx_errlog_commands[] = { {ngx_string("error_log"), NGX_MAIN_CONF|NGX_CONF_1MORE, ngx_set_error_log, 0, 0, NULL}, ngx_null_command }; static ngx_core_module_t ngx_errlog_module_ctx = { ngx_string("errlog"), NULL, NULL }; ngx_module_t ngx_errlog_module = { NGX_MODULE_V1, &ngx_errlog_module_ctx, /* module context */ ngx_errlog_commands, /* module directives */ NGX_CORE_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ NULL, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; static ngx_log_t ngx_log; static ngx_open_file_t ngx_stderr; static const char *err_levels[] = { "stderr", "emerg", "alert", "crit", "error", "warn", "notice", "info", "debug" }; static const char *debug_levels[] = { "debug_core", "debug_alloc", "debug_mutex", "debug_event", "debug_http", "debug_imap" }; #if (NGX_HAVE_VARIADIC_MACROS) void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...) #else void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, va_list args) #endif { #if (NGX_HAVE_VARIADIC_MACROS) va_list args; #endif u_char errstr[NGX_MAX_ERROR_STR], *p, *last; if (log->file->fd == NGX_INVALID_FILE) { return; } last = errstr + NGX_MAX_ERROR_STR; ngx_memcpy(errstr, ngx_cached_err_log_time.data, ngx_cached_err_log_time.len); p = errstr + ngx_cached_err_log_time.len; p = ngx_sprintf(p, " [%s] ", err_levels[level]); /* pid#tid */ p = ngx_sprintf(p, "%P#" NGX_TID_T_FMT ": ", ngx_log_pid, ngx_log_tid); if (log->connection) { p = ngx_sprintf(p, "*%uA ", log->connection); } #if (NGX_HAVE_VARIADIC_MACROS) va_start(args, fmt); p = ngx_vsnprintf(p, last - p, fmt, args); va_end(args); #else p = ngx_vsnprintf(p, last - p, fmt, args); #endif if (err) { if (p > last - 50) { /* leave a space for an error code */ p = last - 50; *p++ = '.'; *p++ = '.'; *p++ = '.'; } #if (NGX_WIN32) if ((unsigned) err >= 0x80000000) { p = ngx_snprintf(p, last - p, " (%Xd: ", err); } else { p = ngx_snprintf(p, last - p, " (%d: ", err); } #else p = ngx_snprintf(p, last - p, " (%d: ", err); #endif p = ngx_strerror_r(err, p, last - p); if (p < last) { *p++ = ')'; } } if (level != NGX_LOG_DEBUG && log->handler) { p = log->handler(log, p, last - p); } if (p > last - NGX_LINEFEED_SIZE) { p = last - NGX_LINEFEED_SIZE; } ngx_linefeed(p); ngx_write_fd(log->file->fd, errstr, p - errstr); } #if !(NGX_HAVE_VARIADIC_MACROS) void ngx_cdecl ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...) { va_list args; if (log->log_level >= level) { va_start(args, fmt); ngx_log_error_core(level, log, err, fmt, args); va_end(args); } } void ngx_cdecl ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...) { va_list args; va_start(args, fmt); ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, args); va_end(args); } #endif ngx_log_t * ngx_log_init(void) { ngx_log.file = &ngx_stderr; ngx_log.log_level = NGX_LOG_NOTICE; #if (NGX_WIN32) ngx_stderr_fileno = GetStdHandle(STD_ERROR_HANDLE); ngx_stderr.fd = ngx_open_file(NGX_ERROR_LOG_PATH, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND); if (ngx_stderr.fd == NGX_INVALID_FILE) { ngx_message_box("nginx", MB_OK, ngx_errno, "Could not open error log file: " ngx_open_file_n " \"" NGX_ERROR_LOG_PATH "\" failed"); return NULL; } if (ngx_file_append_mode(ngx_stderr.fd) == NGX_ERROR) { ngx_message_box("nginx", MB_OK, ngx_errno, "Could not open error log file: " ngx_file_append_mode_n " \"" NGX_ERROR_LOG_PATH "\" failed"); return NULL; } #else ngx_stderr.fd = STDERR_FILENO; #endif return &ngx_log; } ngx_log_t * ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args) { ngx_log_t *log; ngx_str_t *value, *name; if (args) { value = args->elts; name = &value[1]; } else { name = NULL; } log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t)); if (log == NULL) { return NULL; } log->file = ngx_conf_open_file(cycle, name); if (log->file == NULL) { return NULL; } return log; } char * ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log) { ngx_uint_t i, n, d; ngx_str_t *value; value = cf->args->elts; for (i = 2; i < cf->args->nelts; i++) { for (n = 1; n <= NGX_LOG_DEBUG; n++) { if (ngx_strcmp(value[i].data, err_levels[n]) == 0) { if (log->log_level != 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%s\"", value[i].data); return NGX_CONF_ERROR; } log->log_level = n; continue; } } for (n = 0, d = NGX_LOG_DEBUG_FIRST; d <= NGX_LOG_DEBUG_LAST; d <<= 1) { if (ngx_strcmp(value[i].data, debug_levels[n++]) == 0) { if (log->log_level & ~NGX_LOG_DEBUG_ALL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%s\"", value[i].data); return NGX_CONF_ERROR; } log->log_level |= d; } } if (log->log_level == 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%s\"", value[i].data); return NGX_CONF_ERROR; } } if (log->log_level == NGX_LOG_DEBUG) { log->log_level = NGX_LOG_DEBUG_ALL; } return NGX_CONF_OK; } static char * ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_str_t *value; value = cf->args->elts; if (value[1].len == 6 && ngx_strcmp(value[1].data, "stderr") == 0) { cf->cycle->new_log->file->fd = ngx_stderr.fd; cf->cycle->new_log->file->name.len = 0; cf->cycle->new_log->file->name.data = NULL; } else { cf->cycle->new_log->file->name = value[1]; if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name) == NGX_ERROR) { return NGX_CONF_ERROR; } } return ngx_set_error_log_levels(cf, cf->cycle->new_log); }