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