mirror of
https://github.com/MariaDB/server.git
synced 2025-01-15 19:42:28 +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++
/******************************************************
|
|
Copyright (c) 2013 Percona LLC and/or its affiliates.
|
|
|
|
Local datasink implementation for XtraBackup.
|
|
|
|
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 <mysys_err.h>
|
|
#include "common.h"
|
|
#include "datasink.h"
|
|
|
|
typedef struct {
|
|
File fd;
|
|
} ds_stdout_file_t;
|
|
|
|
static ds_ctxt_t *stdout_init(const char *root);
|
|
static ds_file_t *stdout_open(ds_ctxt_t *ctxt, const char *path,
|
|
const MY_STAT *mystat, bool rewrite);
|
|
static int stdout_write(ds_file_t *file, const uchar *buf, size_t len);
|
|
static int stdout_close(ds_file_t *file);
|
|
static void stdout_deinit(ds_ctxt_t *ctxt);
|
|
|
|
datasink_t datasink_stdout = {
|
|
&stdout_init,
|
|
&stdout_open,
|
|
&stdout_write,
|
|
nullptr,
|
|
&stdout_close,
|
|
&dummy_remove,
|
|
nullptr,
|
|
nullptr,
|
|
&stdout_deinit
|
|
};
|
|
|
|
static
|
|
ds_ctxt_t *
|
|
stdout_init(const char *root)
|
|
{
|
|
ds_ctxt_t *ctxt;
|
|
|
|
ctxt = (ds_ctxt_t *)my_malloc(PSI_NOT_INSTRUMENTED, sizeof(ds_ctxt_t), MYF(MY_FAE));
|
|
|
|
ctxt->root = my_strdup(PSI_NOT_INSTRUMENTED, root, MYF(MY_FAE));
|
|
|
|
return ctxt;
|
|
}
|
|
|
|
static
|
|
ds_file_t *
|
|
stdout_open(ds_ctxt_t *ctxt __attribute__((unused)),
|
|
const char *path __attribute__((unused)),
|
|
const MY_STAT *mystat __attribute__((unused)), bool rewrite)
|
|
{
|
|
DBUG_ASSERT(rewrite == false);
|
|
ds_stdout_file_t *stdout_file;
|
|
ds_file_t *file;
|
|
size_t pathlen;
|
|
const char *fullpath = "<STDOUT>";
|
|
|
|
pathlen = strlen(fullpath) + 1;
|
|
|
|
file = (ds_file_t *) my_malloc(PSI_NOT_INSTRUMENTED, sizeof(ds_file_t) +
|
|
sizeof(ds_stdout_file_t) + pathlen, MYF(MY_FAE));
|
|
stdout_file = (ds_stdout_file_t *) (file + 1);
|
|
|
|
|
|
#ifdef _WIN32
|
|
setmode(fileno(stdout), _O_BINARY);
|
|
#endif
|
|
|
|
stdout_file->fd = my_fileno(stdout);
|
|
|
|
file->path = (char *) stdout_file + sizeof(ds_stdout_file_t);
|
|
memcpy(file->path, fullpath, pathlen);
|
|
|
|
file->ptr = stdout_file;
|
|
|
|
return file;
|
|
}
|
|
|
|
static
|
|
int
|
|
stdout_write(ds_file_t *file, const uchar *buf, size_t len)
|
|
{
|
|
File fd = ((ds_stdout_file_t *) file->ptr)->fd;
|
|
|
|
if (!my_write(fd, buf, len, MYF(MY_WME | MY_NABP))) {
|
|
posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static
|
|
int
|
|
stdout_close(ds_file_t *file)
|
|
{
|
|
my_free(file);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static
|
|
void
|
|
stdout_deinit(ds_ctxt_t *ctxt)
|
|
{
|
|
my_free(ctxt->root);
|
|
my_free(ctxt);
|
|
}
|