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/* Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
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 02110-1301, USA */
#ifndef MY_THREAD_LOCAL_INCLUDED
#define MY_THREAD_LOCAL_INCLUDED
#ifndef _WIN32
#include <pthread.h>
#endif
struct _db_code_state_;
typedef uint32 my_thread_id;
C_MODE_START
#ifdef _WIN32
typedef DWORD thread_local_key_t;
#else
typedef pthread_key_t thread_local_key_t;
#endif
static inline int my_create_thread_local_key(thread_local_key_t *key,
void (*destructor)(void *))
{
#ifdef _WIN32
*key= TlsAlloc();
return (*key == TLS_OUT_OF_INDEXES);
#else
return pthread_key_create(key, destructor);
#endif
}
static inline int my_delete_thread_local_key(thread_local_key_t key)
{
#ifdef _WIN32
return !TlsFree(key);
#else
return pthread_key_delete(key);
#endif
}
static inline void* my_get_thread_local(thread_local_key_t key)
{
#ifdef _WIN32
return TlsGetValue(key);
#else
return pthread_getspecific(key);
#endif
}
static inline int my_set_thread_local(thread_local_key_t key,
void *value)
{
#ifdef _WIN32
return !TlsSetValue(key, value);
#else
return pthread_setspecific(key, value);
#endif
}
/**
Retrieve the MySQL thread-local storage variant of errno.
*/
int my_errno();
/**
Set the MySQL thread-local storage variant of errno.
*/
void set_my_errno(int my_errno);
#ifdef _WIN32
/*
thr_winerr is used for returning the original OS error-code in Windows,
my_osmaperr() returns EINVAL for all unknown Windows errors, hence we
preserve the original Windows Error code in thr_winerr.
*/
int thr_winerr();
void set_thr_winerr(int winerr);
#endif
#ifndef DBUG_OFF
/* Return pointer to DBUG for holding current state */
struct _db_code_state_ **my_thread_var_dbug();
my_thread_id my_thread_var_id();
void set_my_thread_var_id(my_thread_id id);
#endif
C_MODE_END
#endif // MY_THREAD_LOCAL_INCLUDED