Utils/Logger/Config.ih

   1 // $Id$
   2 //
   3 // Copyright (C) 2007
   4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
   5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
   6 //     Stefan Bund <g0dil@berlios.de>
   7 //
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 2 of the License, or
  11 // (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the
  20 // Free Software Foundation, Inc.,
  21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23 /** \file
  24     \brief Config internal header */
  25
  26 #ifndef IH_Config_
  27 #define IH_Config_ 1
  28
  29 // Custom includes
  30 #include <boost/preprocessor/expand.hpp>
  31 #include <boost/preprocessor/seq/for_each.hpp>
  32 #include <boost/preprocessor/seq/to_tuple.hpp>
  33 #include <boost/preprocessor/seq/fold_right.hpp>
  34 #include <boost/preprocessor/seq/pop_back.hpp>
  35 #include <boost/preprocessor/if.hpp>
  36 #include "../preprocessor.hh"
  37
  38 ///////////////////////////////ih.p////////////////////////////////////////
  39
  40 namespace senf {
  41 namespace log {
  42 namespace detail {
  43
  44     struct na {};
  45
  46     /// Internal: Compile time configuration for given \a Stream and \a Area
  47     template <class Stream, class Area, class QueryStream=Stream, bool Query=true>
  48     struct Config
  49     {
  50         typedef typename Config<na, Area, Stream, Query>::compileLimit compileLimit;
  51     };
  52
  53 #   ifndef DOXYGEN
  54
  55     template <class Area, class QueryStream, bool Query>
  56     struct Config<na, Area, QueryStream, Query>
  57     {
  58         typedef typename Config<QueryStream, na, QueryStream, Query>::compileLimit compileLimit;
  59     };
  60
  61     template <class Stream, class QueryStream, bool Query>
  62     struct Config<Stream, na, QueryStream, Query>
  63     {
  64         typedef typename Config<na, na, QueryStream, Query>::compileLimit compileLimit;
  65     };
  66
  67     template <class QueryStream, bool Query>
  68     struct Config<na, na, QueryStream, Query>
  69     {
  70         typedef typename QueryStream::compileLimit compileLimit;
  71     };
  72
  73 #   endif
  74
  75 }}}
  76
  77 #define SENF_LOG_SEQ_TO_NAME_(s,state,elem) state::elem
  78
  79 #define SENF_LOG_SEQ_TO_NAME(seq)                                                                 \
  80     BOOST_PP_SEQ_FOLD_LEFT(SENF_LOG_SEQ_TO_NAME_, , seq)
  81
  82 #define SENF_LOG_PREDECL_(s, state, elem)                                                         \
  83     namespace elem { state }
  84
  85 #define SENF_LOG_PREDECL_long(seq)                                                                \
  86     BOOST_PP_SEQ_FOLD_RIGHT( SENF_LOG_PREDECL_,                                                   \
  87                              class SENF_PP_SEQ_BACK(seq);,                                        \
  88                              BOOST_PP_SEQ_POP_BACK(seq) )
  89
  90 #define SENF_LOG_PREDECL_short(seq)                                                               \
  91         class SENF_PP_SEQ_BACK(seq);
  92
  93 #define SENF_LOG_PREDECL(seq)                                                                     \
  94     BOOST_PP_CAT(SENF_LOG_PREDECL_,                                                               \
  95                  BOOST_PP_IF(BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(seq)),long,short))(seq)
  96
  97 #define SENF_LOG_NIL(x)
  98
  99 #define SENF_LOG_CONF_DEFINE(stream, area, level)                                                 \
 100     SENF_LOG_PREDECL(stream)                                                                      \
 101     SENF_LOG_PREDECL(area)                                                                        \
 102     namespace senf { namespace log { namespace detail {                                           \
 103         template <class QueryStream>                                                              \
 104         struct Config< SENF_LOG_SEQ_TO_NAME(stream),                                              \
 105                        SENF_LOG_SEQ_TO_NAME(area),                                                \
 106                        QueryStream,                                                               \
 107                        true >                                                                     \
 108         { typedef senf::log::level compileLimit; };                                               \
 109     }}}
 110
 111 #ifdef SENF_LOG_CONF
 112
 113 #   define _ senf::log::detail::na
 114 #   define SLC_elt(r, data, elt) \
 115         SENF_LOG_CONF_DEFINE elt
 116
 117     BOOST_PP_SEQ_FOR_EACH(SLC_elt, none, SENF_LOG_CONF)
 118
 119 #   undef SLC_elt
 120 #   undef _
 121
 122 #endif
 123
 124
 125
 126
 127 ///////////////////////////////ih.e////////////////////////////////////////
 128 #endif
 129
 130 \f
 131 // Local Variables:
 132 // mode: c++
 133 // fill-column: 100
 134 // comment-column: 40
 135 // c-file-style: "senf"
 136 // indent-tabs-mode: nil
 137 // ispell-local-dictionary: "american"
 138 // compile-command: "scons -u test"
 139 // End: