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/******************************************************
Copyright (c) 2011-2013 Percona LLC and/or its affiliates.
Data sink interface.
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; version 2 of the License.
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
*******************************************************/
#include <my_global.h>
#include <my_base.h>
#include "common.h"
#include "datasink.h"
#include "ds_compress.h"
#include "ds_xbstream.h"
#include "ds_local.h"
#include "ds_stdout.h"
#include "ds_tmpfile.h"
#include "ds_buffer.h"
/************************************************************************
Create a datasink of the specified type */
ds_ctxt_t *
ds_create(const char *root, ds_type_t type)
{
datasink_t *ds;
ds_ctxt_t *ctxt;
switch (type) {
case DS_TYPE_STDOUT:
ds = &datasink_stdout;
break;
case DS_TYPE_LOCAL:
ds = &datasink_local;
break;
case DS_TYPE_XBSTREAM:
ds = &datasink_xbstream;
break;
case DS_TYPE_COMPRESS:
ds = &datasink_compress;
break;
case DS_TYPE_ENCRYPT:
case DS_TYPE_DECRYPT:
die("mariabackup does not support encrypted backups.");
break;
case DS_TYPE_TMPFILE:
ds = &datasink_tmpfile;
break;
case DS_TYPE_BUFFER:
ds = &datasink_buffer;
break;
default:
msg("Unknown datasink type: %d", type);
xb_ad(0);
return NULL;
}
ctxt = ds->init(root);
if (ctxt != NULL) {
ctxt->datasink = ds;
} else {
die("failed to initialize datasink.");
}
return ctxt;
}
/************************************************************************
Open a datasink file */
ds_file_t *
ds_open(ds_ctxt_t *ctxt, const char *path, const MY_STAT *stat, bool rewrite)
{
ds_file_t *file;
file = ctxt->datasink->open(ctxt, path, stat, rewrite);
if (file != NULL) {
file->datasink = ctxt->datasink;
}
return file;
}
/************************************************************************
Write to a datasink file.
@return 0 on success, 1 on error. */
int
ds_write(ds_file_t *file, const void *buf, size_t len)
{
if (len == 0) {
return 0;
}
return file->datasink->write(file, (const uchar *)buf, len);
}
int ds_seek_set(ds_file_t *file, my_off_t offset) {
DBUG_ASSERT(file);
DBUG_ASSERT(file->datasink);
if (file->datasink->seek_set)
return file->datasink->seek_set(file, offset);
return 0;
}
int ds_rename(ds_ctxt_t *ctxt, const char *old_path, const char *new_path) {
DBUG_ASSERT(ctxt);
DBUG_ASSERT(ctxt->datasink);
if (ctxt->datasink->rename)
return ctxt->datasink->rename(ctxt, old_path, new_path);
return 0;
}
int ds_remove(ds_ctxt_t *ctxt, const char *path) {
DBUG_ASSERT(ctxt);
DBUG_ASSERT(ctxt->datasink);
if (ctxt->datasink->remove)
return ctxt->datasink->mremove(ctxt, path);
return 0;
}
/************************************************************************
Close a datasink file.
@return 0 on success, 1, on error. */
int
ds_close(ds_file_t *file)
{
return file->datasink->close(file);
}
/************************************************************************
Destroy a datasink handle */
void
ds_destroy(ds_ctxt_t *ctxt)
{
ctxt->datasink->deinit(ctxt);
}
/************************************************************************
Set the destination pipe for a datasink (only makes sense for compress and
tmpfile). */
void ds_set_pipe(ds_ctxt_t *ctxt, ds_ctxt_t *pipe_ctxt)
{
ctxt->pipe_ctxt = pipe_ctxt;
}
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