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61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/* Copyright (C) 2006 MySQL AB
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#if defined(__i386__) || defined(_M_IX86) || defined(HAVE_GCC_ATOMIC_BUILTINS)
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#ifdef MY_ATOMIC_MODE_DUMMY
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# define LOCK ""
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#else
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# define LOCK "lock"
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#endif
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#ifdef HAVE_GCC_ATOMIC_BUILTINS
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#include "gcc_builtins.h"
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#elif __GNUC__
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#include "x86-gcc.h"
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#elif defined(_MSC_VER)
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#include "x86-msvc.h"
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#endif
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#elif defined(HAVE_SOLARIS_ATOMIC)
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#include "solaris.h"
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#endif /* __i386__ || _M_IX86 || HAVE_GCC_ATOMIC_BUILTINS */
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#if defined(make_atomic_cas_body) || defined(MY_ATOMICS_MADE)
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/*
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* We have atomics that require no locking
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*/
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#define MY_ATOMIC_NOLOCK
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#ifdef __SUNPRO_C
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/*
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* Sun Studio 12 (and likely earlier) does not accept a typedef struct {}
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*/
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typedef char my_atomic_rwlock_t;
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#else
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typedef struct { } my_atomic_rwlock_t;
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#endif
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#define my_atomic_rwlock_destroy(name)
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#define my_atomic_rwlock_init(name)
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#define my_atomic_rwlock_rdlock(name)
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#define my_atomic_rwlock_wrlock(name)
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#define my_atomic_rwlock_rdunlock(name)
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#define my_atomic_rwlock_wrunlock(name)
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#endif
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