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/*
* Copyright 2010-2017, Tarantool AUTHORS, please see AUTHORS file.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``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
* <COPYRIGHT HOLDER> 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 "journal.h"
#include <small/region.h>
#include <diag.h>
int
journal_no_write_async(struct journal *journal,
struct journal_entry *entry)
{
(void)journal;
assert(false);
errno = EINVAL;
diag_set(SystemError, "write_async wrong context");
entry->res = -1;
return -1;
}
void
journal_no_write_async_cb(struct journal_entry *entry)
{
assert(false);
errno = EINVAL;
diag_set(SystemError, "write_async_cb wrong context");
entry->res = -1;
}
/**
* Used to load from a memtx snapshot. LSN is not used,
* but txn_commit() must work.
*/
static int
dummy_journal_write(struct journal *journal, struct journal_entry *entry)
{
(void) journal;
entry->res = 0;
return 0;
}
static struct journal dummy_journal = {
.write_async = journal_no_write_async,
.write_async_cb = journal_no_write_async_cb,
.write = dummy_journal_write,
};
struct journal *current_journal = &dummy_journal;
struct journal_entry *
journal_entry_new(size_t n_rows, struct region *region,
void *complete_data)
{
struct journal_entry *entry;
size_t size = (sizeof(struct journal_entry) +
sizeof(entry->rows[0]) * n_rows);
entry = region_aligned_alloc(region, size,
alignof(struct journal_entry));
if (entry == NULL) {
diag_set(OutOfMemory, size, "region", "struct journal_entry");
return NULL;
}
entry->complete_data = complete_data;
entry->approx_len = 0;
entry->n_rows = n_rows;
entry->res = -1;
return entry;
}
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