/*
* Copyright 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* obj_recreate.c -- recreate pool on dirty file and check consistency
*/
#include "unittest.h"
POBJ_LAYOUT_BEGIN(recreate);
POBJ_LAYOUT_ROOT(recreate, struct root);
POBJ_LAYOUT_TOID(recreate, struct foo);
POBJ_LAYOUT_END(recreate);
struct foo {
int bar;
};
struct root {
TOID(struct foo) foo;
};
#define LAYOUT_NAME "obj_recreate"
#define ZEROLEN 4096
#define N PMEMOBJ_MIN_POOL
int
main(int argc, char *argv[])
{
START(argc, argv, "obj_recreate");
/* root doesn't count */
UT_COMPILE_ERROR_ON(POBJ_LAYOUT_TYPES_NUM(recreate) != 1);
if (argc < 2)
UT_FATAL("usage: %s file-name [trunc]", argv[0]);
const char *path = argv[1];
PMEMobjpool *pop = NULL;
/* create pool 2*N */
pop = pmemobj_create(path, LAYOUT_NAME, 2 * N, S_IWUSR | S_IRUSR);
if (pop == NULL)
UT_FATAL("!pmemobj_create: %s", path);
/* allocate 1.5*N */
TOID(struct root) root = (TOID(struct root))pmemobj_root(pop,
(size_t)(1.5 * N));
/* use root object for something */
POBJ_NEW(pop, &D_RW(root)->foo, struct foo, NULL, NULL);
pmemobj_close(pop);
int fd = OPEN(path, O_RDWR);
if (argc >= 3 && strcmp(argv[2], "trunc") == 0) {
UT_OUT("truncating");
/* shrink file to N */
FTRUNCATE(fd, N);
}
/* zero first 4kB */
void *p = MMAP(NULL, ZEROLEN, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
memset(p, 0, ZEROLEN);
MUNMAP(p, ZEROLEN);
CLOSE(fd);
/* create pool on existing file */
pop = pmemobj_create(path, LAYOUT_NAME, 0, S_IWUSR | S_IRUSR);
if (pop == NULL)
UT_FATAL("!pmemobj_create: %s", path);
/* try to allocate 0.7*N */
root = (TOID(struct root))pmemobj_root(pop, (size_t)(0.5 * N));
if (TOID_IS_NULL(root))
UT_FATAL("couldn't allocate root object");
/* validate root object is empty */
if (!TOID_IS_NULL(D_RW(root)->foo))
UT_FATAL("root object is already filled after pmemobj_create!");
pmemobj_close(pop);
DONE(NULL);
}