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pmemobj_convert_v1.c
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pmemobj_convert_v1.c
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/*
* Copyright 2014-2019, 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.
*/
#include <assert.h>
#include <endian.h>
#include <errno.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include "libpmem.h"
#include "pmemobj_convert.h"
#include "libpmemobj.h"
#include "common.h"
#include "output.h"
/*
* outv_err_vargs -- print error message
*/
void
outv_err_vargs(const char *fmt, va_list ap)
{
fprintf(stderr, "error: ");
vfprintf(stderr, fmt, ap);
if (!strchr(fmt, '\n'))
fprintf(stderr, "\n");
}
/*
* outv_err -- print error message
*/
void
outv_err(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
outv_err_vargs(fmt, ap);
va_end(ap);
}
/*
* pmemobj_convert - convert a pool to the next layout version
*/
const char *
pmemobj_convert(const char *path, unsigned force)
{
/* open the pool and perform recovery */
PMEMobjpool *pop = pmemobj_open(path, NULL);
if (!pop)
return pmemobj_errormsg();
/* now recovery state is clean, so we can zero it out */
struct lane_layout *lanes =
(struct lane_layout *)((char *)pop + pop->lanes_offset);
memset(lanes, 0, pop->nlanes * sizeof(struct lane_layout));
pmemobj_persist(pop, lanes, pop->nlanes * sizeof(struct lane_layout));
pmemobj_close(pop);
const char *ret = NULL;
struct pmem_pool_params params;
if (pmem_pool_parse_params(path, ¶ms, 1))
return get_error("cannot open pool: %s", strerror(errno));
struct pool_set_file *psf = pool_set_file_open(path, 0, 1);
if (psf == NULL) {
return get_error("pool_set_file_open failed: %s",
strerror(errno));
}
void *addr = pool_set_file_map(psf, 0);
if (addr == NULL) {
ret = "mapping file failed";
goto pool_set_close;
}
struct pool_hdr *phdr = addr;
uint32_t m = le32toh(phdr->major);
if (m != OBJ_FORMAT_MAJOR) {
/* shouldn't be possible, because pool open succeeded earlier */
ret = get_error("invalid pool version: %d", m);
goto pool_set_close;
}
if (pool_set_file_map_headers(psf, 0, POOL_HDR_SIZE)) {
ret = get_error("mapping headers failed: %s", strerror(errno));
goto pool_set_close;
}
/* need to update every header of every part */
for (unsigned r = 0; r < psf->poolset->nreplicas; ++r) {
struct pool_replica *rep = psf->poolset->replica[r];
for (unsigned p = 0; p < rep->nparts; ++p) {
struct pool_set_part *part = &rep->part[p];
struct pool_hdr *hdr = part->hdr;
assert(hdr->major == OBJ_FORMAT_MAJOR);
hdr->major = htole32(OBJ_FORMAT_MAJOR + 1);
util_checksum(hdr, sizeof(*hdr), &hdr->checksum, 1);
pmem_msync(hdr, sizeof(struct pool_hdr));
}
}
pool_set_file_unmap_headers(psf);
pool_set_close:
pool_set_file_close(psf);
return ret;
}
/*
* pmemobj_convert_try_open - return if a pool is openable by this pmdk verison
*/
int
pmemobj_convert_try_open(char *path)
{
PMEMobjpool *pop = pmemobj_open(path, NULL);
if (!pop)
return 1;
pmemobj_close(pop);
return 0;
}