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https://github.com/MariaDB/server.git
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af86422f08
Changed "local" datasink logic to detect page compressed Innodb tables. Whenever such table is detected, holes in the copied files are created by skipping over binary zeros at the end of each compressed page.
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/******************************************************
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Copyright (c) 2011-2013 Percona LLC and/or its affiliates.
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Data sink interface.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*******************************************************/
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#include <my_base.h>
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#include "common.h"
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#include "datasink.h"
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#include "ds_compress.h"
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#include "ds_archive.h"
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#include "ds_xbstream.h"
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#include "ds_local.h"
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#include "ds_stdout.h"
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#include "ds_tmpfile.h"
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#include "ds_buffer.h"
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/************************************************************************
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Create a datasink of the specified type */
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ds_ctxt_t *
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ds_create(const char *root, ds_type_t type)
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{
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datasink_t *ds;
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ds_ctxt_t *ctxt;
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switch (type) {
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case DS_TYPE_STDOUT:
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ds = &datasink_stdout;
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break;
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case DS_TYPE_LOCAL:
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ds = &datasink_local;
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break;
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case DS_TYPE_ARCHIVE:
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#ifdef HAVE_LIBARCHIVE
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ds = &datasink_archive;
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#else
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msg("Error : mariabackup was built without libarchive support");
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exit(EXIT_FAILURE);
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#endif
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break;
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case DS_TYPE_XBSTREAM:
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ds = &datasink_xbstream;
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break;
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case DS_TYPE_COMPRESS:
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ds = &datasink_compress;
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break;
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case DS_TYPE_ENCRYPT:
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case DS_TYPE_DECRYPT:
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msg("Error : mariabackup does not support encrypted backups.");
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exit(EXIT_FAILURE);
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break;
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case DS_TYPE_TMPFILE:
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ds = &datasink_tmpfile;
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break;
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case DS_TYPE_BUFFER:
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ds = &datasink_buffer;
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break;
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default:
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msg("Unknown datasink type: %d\n", type);
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xb_ad(0);
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return NULL;
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}
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ctxt = ds->init(root);
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if (ctxt != NULL) {
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ctxt->datasink = ds;
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} else {
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msg("Error: failed to initialize datasink.\n");
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exit(EXIT_FAILURE);
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}
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return ctxt;
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}
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/************************************************************************
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Open a datasink file */
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ds_file_t *
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ds_open(ds_ctxt_t *ctxt, const char *path, MY_STAT *stat)
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{
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ds_file_t *file;
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file = ctxt->datasink->open(ctxt, path, stat);
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if (file != NULL) {
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file->datasink = ctxt->datasink;
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}
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return file;
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}
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/************************************************************************
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Write to a datasink file.
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@return 0 on success, 1 on error. */
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int
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ds_write(ds_file_t *file, const void *buf, size_t len)
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{
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return file->datasink->write(file, (const uchar *)buf, len);
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}
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/************************************************************************
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Close a datasink file.
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@return 0 on success, 1, on error. */
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int
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ds_close(ds_file_t *file)
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{
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return file->datasink->close(file);
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}
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/************************************************************************
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Destroy a datasink handle */
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void
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ds_destroy(ds_ctxt_t *ctxt)
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{
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ctxt->datasink->deinit(ctxt);
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}
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/************************************************************************
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Set the destination pipe for a datasink (only makes sense for compress and
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tmpfile). */
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void ds_set_pipe(ds_ctxt_t *ctxt, ds_ctxt_t *pipe_ctxt)
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{
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ctxt->pipe_ctxt = pipe_ctxt;
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}
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