talloctort.c

samba-3.0.22.tar.gz 编译smb服务器的源码

/* 
   Unix SMB/CIFS implementation.

   local testing of talloc routines.

   Copyright (C) Andrew Tridgell 2004
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program 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 General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifdef _SAMBA_BUILD_
#include "includes.h"
#else
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <sys/time.h>
#include <time.h>
#include "talloc.h"
#endif

/* the test suite can be built standalone, or as part of Samba */
#ifndef _SAMBA_BUILD_
typedef enum {False=0,True=1} BOOL;
#endif

/* Samba3 does not define the timeval functions below */
#if !defined(_SAMBA_BUILD_) || ((SAMBA_VERSION_MAJOR==3)&&(SAMBA_VERSION_MINOR<9))

static double timeval_elapsed(struct timeval *tv)
{
	struct timeval tv2 = timeval_current();
	return (tv2.tv_sec - tv->tv_sec) + 
	       (tv2.tv_usec - tv->tv_usec)*1.0e-6;
}
#endif /* _SAMBA_BUILD_ */

#if SAMBA_VERSION_MAJOR<4
#ifdef malloc
#undef malloc
#endif
#ifdef strdup
#undef strdup
#endif
#endif

#define CHECK_SIZE(ptr, tsize) do { \
	if (talloc_total_size(ptr) != (tsize)) { \
		printf(__location__ " failed: wrong '%s' tree size: got %u  expected %u\n", \
		       #ptr, \
		       (unsigned)talloc_total_size(ptr), \
		       (unsigned)tsize); \
		talloc_report_full(ptr, stdout); \
		return False; \
	} \
} while (0)

#define CHECK_BLOCKS(ptr, tblocks) do { \
	if (talloc_total_blocks(ptr) != (tblocks)) { \
		printf(__location__ " failed: wrong '%s' tree blocks: got %u  expected %u\n", \
		       #ptr, \
		       (unsigned)talloc_total_blocks(ptr), \
		       (unsigned)tblocks); \
		talloc_report_full(ptr, stdout); \
		return False; \
	} \
} while (0)


/*
  test references 
*/
static BOOL test_ref1(void)
{
	void *root, *p1, *p2, *ref, *r1;

	printf("TESTING SINGLE REFERENCE FREE\n");

	root = talloc_named_const(NULL, 0, "root");
	p1 = talloc_named_const(root, 1, "p1");
	p2 = talloc_named_const(p1, 1, "p2");
	talloc_named_const(p1, 1, "x1");
	talloc_named_const(p1, 2, "x2");
	talloc_named_const(p1, 3, "x3");

	r1 = talloc_named_const(root, 1, "r1");	
	ref = talloc_reference(r1, p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 5);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 2);

	printf("Freeing p2\n");
	talloc_free(p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 5);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 1);

	printf("Freeing p1\n");
	talloc_free(p1);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(r1, 1);

	printf("Freeing r1\n");
	talloc_free(r1);
	talloc_report_full(NULL, stdout);

	printf("Testing NULL\n");
	if (talloc_reference(root, NULL)) {
		return False;
	}

	CHECK_BLOCKS(root, 1);

	CHECK_SIZE(root, 0);

	talloc_free(root);

	return True;
}

/*
  test references 
*/
static BOOL test_ref2(void)
{
	void *root, *p1, *p2, *ref, *r1;

	printf("TESTING DOUBLE REFERENCE FREE\n");

	root = talloc_named_const(NULL, 0, "root");
	p1 = talloc_named_const(root, 1, "p1");
	talloc_named_const(p1, 1, "x1");
	talloc_named_const(p1, 1, "x2");
	talloc_named_const(p1, 1, "x3");
	p2 = talloc_named_const(p1, 1, "p2");

	r1 = talloc_named_const(root, 1, "r1");	
	ref = talloc_reference(r1, p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 5);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 2);

	printf("Freeing ref\n");
	talloc_free(ref);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 5);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 1);

	printf("Freeing p2\n");
	talloc_free(p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 4);
	CHECK_BLOCKS(r1, 1);

	printf("Freeing p1\n");
	talloc_free(p1);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(r1, 1);

	printf("Freeing r1\n");
	talloc_free(r1);
	talloc_report_full(root, stdout);

	CHECK_SIZE(root, 0);

	talloc_free(root);

	return True;
}

/*
  test references 
*/
static BOOL test_ref3(void)
{
	void *root, *p1, *p2, *ref, *r1;

	printf("TESTING PARENT REFERENCE FREE\n");

	root = talloc_named_const(NULL, 0, "root");
	p1 = talloc_named_const(root, 1, "p1");
	p2 = talloc_named_const(root, 1, "p2");
	r1 = talloc_named_const(p1, 1, "r1");
	ref = talloc_reference(p2, r1);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 2);
	CHECK_BLOCKS(p2, 2);
	CHECK_BLOCKS(r1, 1);

	printf("Freeing p1\n");
	talloc_free(p1);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p2, 2);
	CHECK_BLOCKS(r1, 1);

	printf("Freeing p2\n");
	talloc_free(p2);
	talloc_report_full(root, stdout);

	CHECK_SIZE(root, 0);

	talloc_free(root);

	return True;
}

/*
  test references 
*/
static BOOL test_ref4(void)
{
	void *root, *p1, *p2, *ref, *r1;

	printf("TESTING REFERRER REFERENCE FREE\n");

	root = talloc_named_const(NULL, 0, "root");
	p1 = talloc_named_const(root, 1, "p1");
	talloc_named_const(p1, 1, "x1");
	talloc_named_const(p1, 1, "x2");
	talloc_named_const(p1, 1, "x3");
	p2 = talloc_named_const(p1, 1, "p2");

	r1 = talloc_named_const(root, 1, "r1");	
	ref = talloc_reference(r1, p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 5);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 2);

	printf("Freeing r1\n");
	talloc_free(r1);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 5);
	CHECK_BLOCKS(p2, 1);

	printf("Freeing p2\n");
	talloc_free(p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 4);

	printf("Freeing p1\n");
	talloc_free(p1);
	talloc_report_full(root, stdout);

	CHECK_SIZE(root, 0);

	talloc_free(root);

	return True;
}


/*
  test references 
*/
static BOOL test_unlink1(void)
{
	void *root, *p1, *p2, *ref, *r1;

	printf("TESTING UNLINK\n");

	root = talloc_named_const(NULL, 0, "root");
	p1 = talloc_named_const(root, 1, "p1");
	talloc_named_const(p1, 1, "x1");
	talloc_named_const(p1, 1, "x2");
	talloc_named_const(p1, 1, "x3");
	p2 = talloc_named_const(p1, 1, "p2");

	r1 = talloc_named_const(p1, 1, "r1");	
	ref = talloc_reference(r1, p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 7);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 2);

	printf("Unreferencing r1\n");
	talloc_unlink(r1, p2);
	talloc_report_full(root, stdout);

	CHECK_BLOCKS(p1, 6);
	CHECK_BLOCKS(p2, 1);
	CHECK_BLOCKS(r1, 1);

	printf("Freeing p1\n");
	talloc_free(p1);
	talloc_report_full(root, stdout);

	CHECK_SIZE(root, 0);

	talloc_free(root);

	return True;
}

static int fail_destructor(void *ptr)
{
	return -1;
}

/*
  miscellaneous tests to try to get a higher test coverage percentage
*/
static BOOL test_misc(void)
{
	void *root, *p1;
	char *p2;
	double *d;

	printf("TESTING MISCELLANEOUS\n");

	root = talloc_new(NULL);

	p1 = talloc_size(root, 0x7fffffff);
	if (p1) {
		printf("failed: large talloc allowed\n");
		return False;
	}

	p1 = talloc_strdup(root, "foo");
	talloc_increase_ref_count(p1);
	talloc_increase_ref_count(p1);
	talloc_increase_ref_count(p1);
	CHECK_BLOCKS(p1, 1);
	CHECK_BLOCKS(root, 2);
	talloc_free(p1);
	CHECK_BLOCKS(p1, 1);
	CHECK_BLOCKS(root, 2);
	talloc_unlink(NULL, p1);
	CHECK_BLOCKS(p1, 1);
	CHECK_BLOCKS(root, 2);
	p2 = talloc_strdup(p1, "foo");
	if (talloc_unlink(root, p2) != -1) {
		printf("failed: talloc_unlink() of non-reference context should return -1\n");
		return False;
	}
	if (talloc_unlink(p1, p2) != 0) {
		printf("failed: talloc_unlink() of parent should succeed\n");
		return False;
	}
	talloc_free(p1);
	CHECK_BLOCKS(p1, 1);
	CHECK_BLOCKS(root, 2);

	talloc_set_name(p1, "my name is %s", "foo");
	if (strcmp(talloc_get_name(p1), "my name is foo") != 0) {
		printf("failed: wrong name after talloc_set_name\n");
		return False;
	}
	CHECK_BLOCKS(p1, 2);
	CHECK_BLOCKS(root, 3);

	talloc_set_name_const(p1, NULL);
	if (strcmp(talloc_get_name(p1), "UNNAMED") != 0) {
		printf("failed: wrong name after talloc_set_name(NULL)\n");
		return False;
	}
	CHECK_BLOCKS(p1, 2);
	CHECK_BLOCKS(root, 3);
	

	if (talloc_free(NULL) != -1) {
		printf("talloc_free(NULL) should give -1\n");
		return False;
	}

	talloc_set_destructor(p1, fail_destructor);
	if (talloc_free(p1) != -1) {
		printf("Failed destructor should cause talloc_free to fail\n");
		return False;
	}
	talloc_set_destructor(p1, NULL);

	talloc_report(root, stdout);


	p2 = talloc_zero_size(p1, 20);
	if (p2[19] != 0) {
		printf("Failed to give zero memory\n");
		return False;
	}
	talloc_free(p2);

	if (talloc_strdup(root, NULL) != NULL) {
		printf("failed: strdup on NULL should give NULL\n");
		return False;
	}

	p2 = talloc_strndup(p1, "foo", 2);
	if (strcmp("fo", p2) != 0) {
		printf("failed: strndup doesn't work\n");
		return False;
	}
	p2 = talloc_asprintf_append(p2, "o%c", 'd');