Home | History | Annotate | Download | only in base
      1 // Copyright (c) 2005, Google Inc.
      2 // All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions are
      6 // met:
      7 //
      8 //     * Redistributions of source code must retain the above copyright
      9 // notice, this list of conditions and the following disclaimer.
     10 //     * Redistributions in binary form must reproduce the above
     11 // copyright notice, this list of conditions and the following disclaimer
     12 // in the documentation and/or other materials provided with the
     13 // distribution.
     14 //     * Neither the name of Google Inc. nor the names of its
     15 // contributors may be used to endorse or promote products derived from
     16 // this software without specific prior written permission.
     17 //
     18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 
     30 // ---
     31 // Author: Jacob Hoffman-Andrews
     32 
     33 #ifndef _GOOGLEINIT_H
     34 #define _GOOGLEINIT_H
     35 
     36 #include "base/logging.h"
     37 
     38 class GoogleInitializer {
     39  public:
     40   typedef void (*VoidFunction)(void);
     41   GoogleInitializer(const char* name, VoidFunction ctor, VoidFunction dtor)
     42       : name_(name), destructor_(dtor) {
     43     RAW_VLOG(10, "<GoogleModuleObject> constructing: %s\n", name_);
     44     if (ctor)
     45       ctor();
     46   }
     47   ~GoogleInitializer() {
     48     RAW_VLOG(10, "<GoogleModuleObject> destroying: %s\n", name_);
     49     if (destructor_)
     50       destructor_();
     51   }
     52 
     53  private:
     54   const char* const name_;
     55   const VoidFunction destructor_;
     56 };
     57 
     58 #define REGISTER_MODULE_INITIALIZER(name, body)                 \
     59   namespace {                                                   \
     60     static void google_init_module_##name () { body; }          \
     61     GoogleInitializer google_initializer_module_##name(#name,   \
     62             google_init_module_##name, NULL);                   \
     63   }
     64 
     65 #define REGISTER_MODULE_DESTRUCTOR(name, body)                  \
     66   namespace {                                                   \
     67     static void google_destruct_module_##name () { body; }      \
     68     GoogleInitializer google_destructor_module_##name(#name,    \
     69             NULL, google_destruct_module_##name);               \
     70   }
     71 
     72 
     73 #endif /* _GOOGLEINIT_H */
     74