thodg/libgit2/src/util/alloc.c

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• Hash : c3b7ace9
  Author :
  Date : 2021-11-14T16:43:53
  

  refactor: make util an object library Instead of simply including the utility files directly, make them a cmake object library for easy reusability between other projects within libgit2. Now the top-level `src` is responsible for platform selection, while the next-level `libgit2` and `util` configurations are responsible for identifying what objects they include.

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• src/util/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 "runtime.h"
  
  #include "allocators/failalloc.h"
  #include "allocators/stdalloc.h"
  #include "allocators/win32_leakcheck.h"
  
  /* Fail any allocation until git_libgit2_init is called. */
  git_allocator git__allocator = {
  	git_failalloc_malloc,
  	git_failalloc_calloc,
  	git_failalloc_strdup,
  	git_failalloc_strndup,
  	git_failalloc_substrdup,
  	git_failalloc_realloc,
  	git_failalloc_reallocarray,
  	git_failalloc_mallocarray,
  	git_failalloc_free
  };
  
  static int setup_default_allocator(void)
  {
  #if defined(GIT_WIN32_LEAKCHECK)
  	return git_win32_leakcheck_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 != git_failalloc_malloc)
  		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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