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
38class 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 */
89