/******************************************************
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;
}
Messung V0.5 in Prozent C=96 H=100 G=97
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-08)
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