mirror of
https://github.com/MariaDB/server.git
synced 2025-11-04 12:56:14 +01:00
1c55b845e0
Added support to BACKUP STAGE to maria-backup
This is a port of the code from ES 10.6
See MDEV-5336 for backup stages description.
The following old options are not supported by the new code:
--rsync ; This is because rsync will not work on tables
that are in used.
--no-backup-locks ; This is disabled as mariadb-backup will always
use backup locks for better performance.
125 lines
2.9 KiB
C++
125 lines
2.9 KiB
C++
/******************************************************
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Copyright (c) 2013 Percona LLC and/or its affiliates.
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Local datasink implementation for XtraBackup.
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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 02110-1335 USA
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*******************************************************/
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#include <my_global.h>
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#include <my_base.h>
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#include <mysys_err.h>
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#include "common.h"
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#include "datasink.h"
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typedef struct {
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File fd;
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} ds_stdout_file_t;
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static ds_ctxt_t *stdout_init(const char *root);
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static ds_file_t *stdout_open(ds_ctxt_t *ctxt, const char *path,
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const MY_STAT *mystat, bool rewrite);
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static int stdout_write(ds_file_t *file, const uchar *buf, size_t len);
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static int stdout_close(ds_file_t *file);
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static void stdout_deinit(ds_ctxt_t *ctxt);
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datasink_t datasink_stdout = {
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&stdout_init,
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&stdout_open,
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&stdout_write,
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nullptr,
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&stdout_close,
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&dummy_remove,
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nullptr,
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nullptr,
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&stdout_deinit
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};
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static
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ds_ctxt_t *
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stdout_init(const char *root)
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{
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ds_ctxt_t *ctxt;
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ctxt = (ds_ctxt_t *)my_malloc(PSI_NOT_INSTRUMENTED, sizeof(ds_ctxt_t), MYF(MY_FAE));
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ctxt->root = my_strdup(PSI_NOT_INSTRUMENTED, root, MYF(MY_FAE));
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return ctxt;
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}
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static
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ds_file_t *
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stdout_open(ds_ctxt_t *ctxt __attribute__((unused)),
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const char *path __attribute__((unused)),
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const MY_STAT *mystat __attribute__((unused)), bool rewrite)
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{
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DBUG_ASSERT(rewrite == false);
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ds_stdout_file_t *stdout_file;
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ds_file_t *file;
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size_t pathlen;
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const char *fullpath = "<STDOUT>";
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pathlen = strlen(fullpath) + 1;
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file = (ds_file_t *) my_malloc(PSI_NOT_INSTRUMENTED, sizeof(ds_file_t) +
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sizeof(ds_stdout_file_t) + pathlen, MYF(MY_FAE));
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stdout_file = (ds_stdout_file_t *) (file + 1);
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#ifdef _WIN32
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setmode(fileno(stdout), _O_BINARY);
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#endif
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stdout_file->fd = my_fileno(stdout);
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file->path = (char *) stdout_file + sizeof(ds_stdout_file_t);
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memcpy(file->path, fullpath, pathlen);
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file->ptr = stdout_file;
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return file;
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}
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static
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int
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stdout_write(ds_file_t *file, const uchar *buf, size_t len)
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{
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File fd = ((ds_stdout_file_t *) file->ptr)->fd;
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if (!my_write(fd, buf, len, MYF(MY_WME | MY_NABP))) {
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posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED);
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return 0;
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}
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return 1;
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}
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static
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int
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stdout_close(ds_file_t *file)
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{
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my_free(file);
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return 1;
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}
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static
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void
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stdout_deinit(ds_ctxt_t *ctxt)
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{
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my_free(ctxt->root);
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my_free(ctxt);
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}
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