#ifndef MYSQL_SERVICE_THD_RND_INCLUDED
/* Copyright (C) 2017 MariaDB Corporation
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 St, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@ file
This service provides access to the thd - local random number generator .
It ' s preferable over the global one , because concurrent threads
can generate random numbers without fighting each other over the access
to the shared rnd state .
*/
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MYSQL_ABI_CHECK
#include <stdlib.h>
#endif
extern struct thd_rnd_service_st {
double (*thd_rnd_ptr)(MYSQL_THD thd);
void (*thd_c_r_p_ptr)(MYSQL_THD thd, char *to, size_t length);
} *thd_rnd_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
#define thd_rnd(A) thd_rnd_service->thd_rnd_ptr(A)
#define thd_create_random_password(A,B,C) thd_rnd_service->thd_c_r_p_ptr(A,B,C)
#else
double thd_rnd(MYSQL_THD thd);
/**
Generate string of printable random characters of requested length .
@ param thd User thread connection handle
@ param [ out ] to Buffer for generation ; must be at least length + 1 bytes
long ; result string is always null - terminated
@ param [ in ] length How many random characters to put in buffer
*/
void thd_create_random_password(MYSQL_THD thd, char *to, size_t length);
#endif
#ifdef __cplusplus
}
#endif
#define MYSQL_SERVICE_THD_RND_INCLUDED
#endif
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