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/* Copyright (C) 2013 Codership Oy <info@codersihp.com>
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*! @file Helper functions to deal with GTID string representations */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <limits.h>
#include "wsrep_api.h"
/*!
* Read GTID from string
* @return length of GTID string representation or -EINVAL in case of error
*/
int
wsrep_gtid_scan(const char* str, size_t str_len, wsrep_gtid_t* gtid)
{
int offset;
char* endptr;
if (str_len > INT_MAX) return -EINVAL;
if ((offset = wsrep_uuid_scan(str, str_len, >id->uuid)) > 0 &&
offset < (int)str_len && str[offset] == ':') {
++offset;
if (offset < (int)str_len)
{
errno = 0;
gtid->seqno = strtoll(str + offset, &endptr, 0);
if (errno == 0) {
return (int)(endptr - str);
}
}
}
*gtid = WSREP_GTID_UNDEFINED;
return -EINVAL;
}
/*!
* Write GTID to string
* @return length of GTID string representation or -EMSGSIZE if string is too
* short
*/
int
wsrep_gtid_print(const wsrep_gtid_t* gtid, char* str, size_t str_len)
{
int offset, ret;
if (str_len > INT_MAX) return -EINVAL;
if ((offset = wsrep_uuid_print(>id->uuid, str, str_len)) > 0)
{
ret = snprintf(str + offset, (size_t)((int)str_len - offset),
":%" PRId64, gtid->seqno);
if (ret <= ((int)str_len - offset)) {
return (offset + ret);
}
}
return -EMSGSIZE;
}
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