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/******************************************************
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);
}
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