thodg/libgit2/src/alloc.c

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• Hash : 48727e5d
  Author :
  Date : 2019-02-21T12:27:42
  

  allocators: extract crtdbg allocator into its own file
  
  The Windows-specific crtdbg allocator is currently mixed into the
  crtdbg stacktracing compilation unit, making it harder to find
  than necessary. Extract it and move it into the new "allocators/"
  subdirectory to improve discoverability.
  
  This change means that the crtdbg compilation unit is now
  compiled unconditionally, whereas it has previously only been
  compiled on Windows platforms. Thus we now have additional guards
  around the code so that it will only be compiled if
  GIT_MSVC_CRTDBG is defined. This also allows us to move over the
  fallback-implementation of `git_win32_crtdbg_init_allocator` into
  the same compilation unit.
  

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• src/alloc.c

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  
  #include "alloc.h"
  
  #include "allocators/stdalloc.h"
  #include "allocators/win32_crtdbg.h"
  
  git_allocator git__allocator;
  
  static int setup_default_allocator(void)
  {
  #if defined(GIT_MSVC_CRTDBG)
  	return git_win32_crtdbg_init_allocator(&git__allocator);
  #else
  	return git_stdalloc_init_allocator(&git__allocator);
  #endif
  }
  
  int git_allocator_global_init(void)
  {
  	/*
  	 * We don't want to overwrite any allocator which has been set before
  	 * the init function is called.
  	 */
  	if (git__allocator.gmalloc != NULL)
  		return 0;
  
  	return setup_default_allocator();
  }
  
  int git_allocator_setup(git_allocator *allocator)
  {
  	if (!allocator)
  		return setup_default_allocator();
  
  	memcpy(&git__allocator, allocator, sizeof(*allocator));
  	return 0;
  }
  

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