root/third_party/tcmalloc/vendor/src/libc_override_redefine.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. new
  2. delete
  3. new
  4. delete
  5. malloc
  6. free
  7. realloc
  8. calloc
  9. cfree
  10. memalign
  11. valloc
  12. pvalloc
  13. posix_memalign
  14. malloc_stats
  15. mallopt
  16. malloc_size
  17. malloc_usable_size
  18. ReplaceSystemAlloc

// Copyright (c) 2011, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// ---
// Author: Craig Silverstein <opensource@google.com>
//
// Used on systems that don't have their own definition of
// malloc/new/etc.  (Typically this will be a windows msvcrt.dll that
// has been edited to remove the definitions.)  We can just define our
// own as normal functions.
//
// This should also work on systems were all the malloc routines are
// defined as weak symbols, and there's no support for aliasing.

#ifndef TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
#define TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_

#ifdef HAVE_SYS_CDEFS_H
#include <sys/cdefs.h>    // for __THROW
#endif

#ifndef __THROW    // I guess we're not on a glibc-like system
# define __THROW   // __THROW is just an optimization, so ok to make it ""
#endif

void* operator new(size_t size)                  { return tc_new(size);       }
void operator delete(void* p) __THROW            { tc_delete(p);              }
void* operator new[](size_t size)                { return tc_newarray(size);  }
void operator delete[](void* p) __THROW          { tc_deletearray(p);         }
void* operator new(size_t size, const std::nothrow_t& nt) __THROW {
  return tc_new_nothrow(size, nt);
}
void* operator new[](size_t size, const std::nothrow_t& nt) __THROW {
  return tc_newarray_nothrow(size, nt);
}
void operator delete(void* ptr, const std::nothrow_t& nt) __THROW {
  return tc_delete_nothrow(ptr, nt);
}
void operator delete[](void* ptr, const std::nothrow_t& nt) __THROW {
  return tc_deletearray_nothrow(ptr, nt);
}
extern "C" {
  void* malloc(size_t s) __THROW                 { return tc_malloc(s);       }
  void  free(void* p) __THROW                    { tc_free(p);                }
  void* realloc(void* p, size_t s) __THROW       { return tc_realloc(p, s);   }
  void* calloc(size_t n, size_t s) __THROW       { return tc_calloc(n, s);    }
  void  cfree(void* p) __THROW                   { tc_cfree(p);               }
  void* memalign(size_t a, size_t s) __THROW     { return tc_memalign(a, s);  }
  void* valloc(size_t s) __THROW                 { return tc_valloc(s);       }
  void* pvalloc(size_t s) __THROW                { return tc_pvalloc(s);      }
  int posix_memalign(void** r, size_t a, size_t s) __THROW {
    return tc_posix_memalign(r, a, s);
  }
  void malloc_stats(void) __THROW                { tc_malloc_stats();         }
  int mallopt(int cmd, int v) __THROW            { return tc_mallopt(cmd, v); }
#ifdef HAVE_STRUCT_MALLINFO
  struct mallinfo mallinfo(void) __THROW         { return tc_mallinfo();      }
#endif
  size_t malloc_size(void* p) __THROW            { return tc_malloc_size(p); }
  size_t malloc_usable_size(void* p) __THROW     { return tc_malloc_size(p); }
}  // extern "C"

// No need to do anything at tcmalloc-registration time: we do it all
// via overriding weak symbols (at link time).
static void ReplaceSystemAlloc() { }

#endif  // TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_

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