third_party/tcmalloc/chromium/src/base/googleinit.h

   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 //
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   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
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  21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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  25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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  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     // TODO(dmikurube): Re-enable the commented-out code.
  44     // We commented out the following line, since Chromium does not have the
  45     // proper includes to log using these macros.
  46     //
  47     // Commended-out code:
  48     //   RAW_VLOG(10, "<GoogleModuleObject> constructing: %s\n", name_);
  49     //
  50     // This googleinit.h is included from out of third_party/tcmalloc, such as
  51     // net/tools/flip_server/balsa_headers.cc.
  52     // "base/logging.h" (included above) indicates Chromium's base/logging.h
  53     // when this googleinit.h is included from out of third_party/tcmalloc.
  54     if (ctor)
  55       ctor();
  56   }
  57   ~GoogleInitializer() {
  58     // TODO(dmikurube): Re-enable the commented-out code.
  59     // The same as above.  The following line is commented out in Chromium.
  60     //
  61     // Commended-out code:
  62     //   RAW_VLOG(10, "<GoogleModuleObject> destroying: %s\n", name_);
  63     if (destructor_)
  64       destructor_();
  65   }
  66
  67  private:
  68   // TODO(dmikurube): Re-enable the commented-out code.
  69   // const char* const name_;
  70   const VoidFunction destructor_;
  71 };
  72
  73 #define REGISTER_MODULE_INITIALIZER(name, body)                 \
  74   namespace {                                                   \
  75     static void google_init_module_##name () { body; }          \
  76     GoogleInitializer google_initializer_module_##name(#name,   \
  77             google_init_module_##name, NULL);                   \
  78   }
  79
  80 #define REGISTER_MODULE_DESTRUCTOR(name, body)                  \
  81   namespace {                                                   \
  82     static void google_destruct_module_##name () { body; }      \
  83     GoogleInitializer google_destructor_module_##name(#name,    \
  84             NULL, google_destruct_module_##name);               \
  85   }
  86
  87
  88 #endif /* _GOOGLEINIT_H */