C++ (Cpp) ngx_log_errno Beispiele

Beispiel #1

Datei: ngx_log.c Projekt: dengshiyong/nginx-general-datastructure

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 *p,*last,*msg;
    ssize_t n;
    ngx_uint_t wrote_stderr,debug_connection;
    u_char errstr[NGX_MAX_ERROR_STR];
    last = errstr + NGX_MAX_ERROR_STR;
    //it seems do not set the ngx_cached_err_log_time.len value
    p = ngx_cpymem(errstr,ngx_cached_err_log_time.data,
                   ngx_cached_err_log_time.len);
    p = ngx_slprintf(p,last,"[%V]",&err_levels[level]);
   //just for making the datastructure can work correctly,comment the next function
    /* pid#tid */
    // p = ngx_slprintf(p,last,"%P#" NGX_TID_T_FMT ": ",
    // ngx_log_pid,ngx_log_tid);
    if (log->connection) {
        p = ngx_slprintf(p,last,"*%uA ",log->connection);
   }

    msg = p;

#if (NGX_HAVE_VARIADIC_MACROS)
    va_start (args,fmt);
    p = ngx_vslprintf(p,last,fmt,args);
    va_end (args);

#else
    p = ngx_vslprintf(p,last,fmt,args);
#endif

    if (err) {
        p = ngx_log_errno(p,last,err);
    }

   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);

   wrote_stderr = 0;
   debug_connection = (log->log_level & NGX_LOG_DEBUG_CONNECTION) != 0;

   while(log){
       if (log->log_level < level && !debug_connection){
           break;
       }

      if(log->writer){
          log->writer(log,level,errstr,p - errstr);
          goto next;
      }

      if (ngx_time() == log->disk_full_time){

            /*
             * on FreeBSD writing to a full filesystem with enabled softupdates
             * may block process for much longer time than writing to non-full
             * filesystem, so we skip writing to a log for one second
             */
          goto next;
      }
      n = ngx_write_fd(log->file->fd,errstr,p - errstr);

      if (n == -1 && ngx_errno == NGX_ENOSPC){
          log->disk_full_time = ngx_time();
      }

      if (log->file->fd == ngx_stderr){
          wrote_stderr = 1;
      }
next:

      log = log->next;
   }

   if (!ngx_use_stderr || level > NGX_LOG_WARN || wrote_stderr){
       return;
   }

   msg -= (7 + err_levels[level].len + 3);

   (void)ngx_sprintf(msg,"nginx: [%V]",&err_levels[level]);

   (void) ngx_write_console(ngx_stderr,msg,p - msg);
}

Beispiel #2

Datei: ngx_log.c Projekt: fanrenlangzi/Nginx-learning

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  *p, *last, *msg;
    u_char   errstr[NGX_MAX_ERROR_STR];

    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_slprintf(p, last, " [%V] ", &err_levels[level]);

    /* pid#tid */
    p = ngx_slprintf(p, last, "%P#" NGX_TID_T_FMT ": ",
                    ngx_log_pid, ngx_log_tid);

    if (log->connection) {
        p = ngx_slprintf(p, last, "*%uA ", log->connection);
    }

    msg = p;

#if (NGX_HAVE_VARIADIC_MACROS)

    va_start(args, fmt);
    p = ngx_vslprintf(p, last, fmt, args);
    va_end(args);

#else

    p = ngx_vslprintf(p, last, fmt, args);

#endif

    if (err) {
        p = ngx_log_errno(p, last, err);
    }

    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);

    (void) ngx_write_fd(log->file->fd, errstr, p - errstr);

    if (!ngx_use_stderr
        || level > NGX_LOG_WARN
        || log->file->fd == ngx_stderr)
    {
        return;
    }

    msg -= (7 + err_levels[level].len + 3);

    (void) ngx_sprintf(msg, "nginx: [%V] ", &err_levels[level]);

    (void) ngx_write_console(ngx_stderr, msg, p - msg);
}