thodg/libgit2/src/alloc.c

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• Hash : 19007b19
  Author :
  Date : 2018-07-15T17:30:04
  

  alloc: don't overwrite allocator during init if set
  
  If the allocator has been set before we the library is initialised, we would
  replace that setting with the standard allocator contrary to the user's wishes.
  

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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"
  
  #if defined(GIT_MSVC_CRTDBG)
  # include "win32/w32_crtdbg_stacktrace.h"
  #else
  # include "stdalloc.h"
  #endif
  
  git_allocator git__allocator;
  
  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;
  
  #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_setup(git_allocator *allocator)
  {
  	memcpy(&git__allocator, allocator, sizeof(*allocator));
  	return 0;
  }
  
  #if !defined(GIT_MSVC_CRTDBG)
  int git_win32_crtdbg_init_allocator(git_allocator *allocator)
  {
  	GIT_UNUSED(allocator);
  	giterr_set(GIT_EINVALID, "crtdbg memory allocator not available");
  	return -1;
  }
  #endif
  

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