mirror of
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.
121 lines
2.7 KiB
C
121 lines
2.7 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 02110-1301, USA
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*******************************************************/
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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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MY_STAT *mystat);
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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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&stdout_close,
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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 = my_malloc(sizeof(ds_ctxt_t), MYF(MY_FAE));
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ctxt->root = my_strdup(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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MY_STAT *mystat __attribute__((unused)))
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{
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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(sizeof(ds_file_t) +
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sizeof(ds_stdout_file_t) +
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pathlen,
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MYF(MY_FAE));
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stdout_file = (ds_stdout_file_t *) (file + 1);
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#ifdef __WIN__
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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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