text: /* 
     Unix SMB/CIFS implementation.
  
     local testing of talloc routines.
  
     Copyright (C) Andrew Tridgell 2004
     Converted to ccan tests by Rusty Russell 2008
     
       ** NOTE! The following LGPL license applies to the talloc
       ** library. This does NOT imply that all of Samba is released
       ** under the LGPL
     
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
  
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with this library; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
  
  #include <ccan/failtest/failtest_override.h>
  #include <ccan/talloc/talloc.c>
  #include <stdbool.h>
  #include <ccan/tap/tap.h>
  #include <ccan/failtest/failtest.h>
  
  #define torture_assert(test, expr, str)					\
  	ok(expr, "%s [\n%s: Expression %s failed: %s\n]\n",		\
  	   test, __location__, #expr, str)
  
  #define torture_assert_str_equal(test, arg1, arg2, desc)	\
  	ok(strcmp(arg1, arg2) == 0,				\
  	   "%s [\n%s: Expected %s, got %s: %s\n]\n",		\
  	   test, __location__, arg1, arg2, desc)
  
  #define CHECK_SIZE(test, ptr, tsize)					\
  	ok(talloc_total_size(ptr) == (tsize),				\
  	   "%s [\nwrong '%s' tree size: got %u  expected %u\n]\n",	\
  	   test, #ptr,							\
  	   (unsigned)talloc_total_size(ptr),				\
  	   (unsigned)tsize)
  
  #define CHECK_BLOCKS(test, ptr, tblocks)				\
  	ok(talloc_total_blocks(ptr) == (tblocks),			\
  	   "%s [\nwrong '%s' tree blocks: got %u  expected %u\n]\n",	\
  	   test, #ptr,							\
  	   (unsigned)talloc_total_blocks(ptr),				\
  	   (unsigned)tblocks)
  
  #define CHECK_PARENT(test, ptr, parent)					\
  	ok(talloc_parent(ptr) == (parent),				\
  	   "%s [\n'%s' has wrong parent: got %p  expected %p\n]\n",	\
  	   test, #ptr,							\
  	   talloc_parent(ptr),						\
  	   (parent))
  
  struct torture_context;
  
  static bool test_unref_reparent(const struct torture_context *ctx)
  {
  	void *root, *p1, *p2, *c1;
  	bool ret = false;
  
  	root = talloc_named_const(ctx, 0, "root");
  	if (!root)
  		goto out;
  	p1 = talloc_named_const(root, 1, "orig parent");
  	if (!p1)
  		goto out;
  	p2 = talloc_named_const(root, 1, "parent by reference");
  	if (!p2)
  		goto out;
  
  	c1 = talloc_named_const(p1, 1, "child");
  	if (!c1)
  		goto out;
  
  	if (!talloc_reference(p2, c1))
  		goto out;
  
  	CHECK_PARENT("unref_reparent", c1, p1);
  
  	talloc_free(p1);
  
  	CHECK_PARENT("unref_reparent", c1, p2);
  
  	talloc_unlink(p2, c1);
  
  	CHECK_SIZE("unref_reparent", root, 1);
  
  	talloc_free(p2);
  	ret = true;
  out:
   	talloc_free(root);
  
  	return ret;
  }
  
  static bool test_lifeless(const struct torture_context *ctx)
  {
  	void *top = talloc_new(ctx);
  	char *parent, *child; 
  	void *child_owner = talloc_new(ctx);
  
  	parent = talloc_strdup(top, "parent");
  	if (!parent)
  		return false;
  	child = talloc_strdup(parent, "child");  
  	if (!child) {
  		talloc_free(parent);
  		return false;
  	}
  	if (!talloc_reference(child, parent)) {
  		talloc_free(parent);
  		return false;
  	}
  
  	if (!talloc_reference(child_owner, child)) {
  		talloc_unlink(child, parent);
  		talloc_free(parent);
  		return false;
  	}
  
  	talloc_unlink(top, parent);
  	talloc_free(child);
  	talloc_free(top);
  	talloc_free(child_owner);
  	talloc_free(child);
  
  	return true;
  }
  
  int main(int argc, char *argv[])
  {
  	plan_tests(5);
  	failtest_init(argc, argv);
  
  	talloc_enable_null_tracking();
  	if (null_context) {
  		ok1(test_unref_reparent(NULL) && test_lifeless(NULL));
  		/* This closes the leak, but don't free any other leaks! */
  		ok1(!talloc_chunk_from_ptr(null_context)->child);
  		talloc_disable_null_tracking();
  	}
  	failtest_exit(exit_status());
  }
  