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MDEV-13728 - Import MySQL 5.7 atomic operations for MSVC and Solaris

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gcc_sync.h, solaris.h, generic-msvc.h copied verbatim.
This commit is contained in:
Sergey Vojtovich
2017-09-04 15:40:21 +04:00
parent 62fb022110
commit 1029b22feb
6 changed files with 287 additions and 244 deletions
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116
include/atomic/solaris.h
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@@ -1,4 +1,7 @@
/* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
#ifndef ATOMIC_SOLARIS_INCLUDED
#define ATOMIC_SOLARIS_INCLUDED
/* Copyright (c) 2008, 2014, 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
@@ -13,51 +16,102 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#ifndef _atomic_h_cleanup_
#define _atomic_h_cleanup_ "atomic/solaris.h"
#include <atomic.h>
#define MY_ATOMIC_MODE "solaris-atomic"
#if defined(__GNUC__)
#define atomic_typeof(T,V) __typeof__(V)
#else
#define atomic_typeof(T,V) T
#endif
#define uintptr_t void *
#define atomic_or_ptr_nv(X,Y) (void *)atomic_or_ulong_nv((volatile ulong_t *)X, Y)
#define make_atomic_cas_body(S) \
atomic_typeof(uint ## S ## _t, *cmp) sav; \
sav = atomic_cas_ ## S( \
(volatile uint ## S ## _t *)a, \
(uint ## S ## _t)*cmp, \
(uint ## S ## _t)set); \
if (! (ret= (sav == *cmp))) \
static inline int my_atomic_cas32(int32 volatile *a, int32 *cmp, int32 set)
{
int ret;
atomic_typeof(uint32_t, *cmp) sav;
sav= atomic_cas_32((volatile uint32_t *)a, (uint32_t)*cmp, (uint32_t)set);
ret= (sav == *cmp);
if (!ret)
*cmp= sav;
return ret;
}
#define make_atomic_add_body(S) \
int ## S nv; /* new value */ \
nv= atomic_add_ ## S ## _nv((volatile uint ## S ## _t *)a, v); \
v= nv - v
static inline int my_atomic_cas64(int64 volatile *a, int64 *cmp, int64 set)
{
int ret;
atomic_typeof(uint64_t, *cmp) sav;
sav= atomic_cas_64((volatile uint64_t *)a, (uint64_t)*cmp, (uint64_t)set);
ret= (sav == *cmp);
if (!ret)
*cmp= sav;
return ret;
}
/* ------------------------------------------------------------------------ */
static inline int my_atomic_casptr(void * volatile *a, void **cmp, void *set)
{
int ret;
atomic_typeof(void *, *cmp) sav;
sav= atomic_cas_ptr((volatile void **)a, (void *)*cmp, (void *)set);
ret= (sav == *cmp);
if (!ret)
*cmp= sav;
return ret;
}
#define make_atomic_load_body(S) \
ret= atomic_or_ ## S ## _nv((volatile uint ## S ## _t *)a, 0)
static inline int32 my_atomic_add32(int32 volatile *a, int32 v)
{
int32 nv= atomic_add_32_nv((volatile uint32_t *)a, v);
return nv - v;
}
#define make_atomic_store_body(S) \
(void) atomic_swap_ ## S((volatile uint ## S ## _t *)a, (uint ## S ## _t)v)
static inline int64 my_atomic_add64(int64 volatile *a, int64 v)
{
int64 nv= atomic_add_64_nv((volatile uint64_t *)a, v);
return nv - v;
}
#define make_atomic_fas_body(S) \
v= atomic_swap_ ## S((volatile uint ## S ## _t *)a, (uint ## S ## _t)v)
static inline int32 my_atomic_fas32(int32 volatile *a, int32 v)
{
return atomic_swap_32((volatile uint32_t *)a, (uint32_t)v);
}
#else /* cleanup */
static inline int64 my_atomic_fas64(int64 volatile *a, int64 v)
{
return atomic_swap_64((volatile uint64_t *)a, (uint64_t)v);
}
#undef uintptr_t
#undef atomic_or_ptr_nv
static inline void * my_atomic_fasptr(void * volatile *a, void * v)
{
return atomic_swap_ptr(a, v);
}
#endif
static inline int32 my_atomic_load32(int32 volatile *a)
{
return atomic_or_32_nv((volatile uint32_t *)a, 0);
}
static inline int64 my_atomic_load64(int64 volatile *a)
{
return atomic_or_64_nv((volatile uint64_t *)a, 0);
}
static inline void* my_atomic_loadptr(void * volatile *a)
{
return atomic_add_ptr_nv(a, 0);
}
static inline void my_atomic_store32(int32 volatile *a, int32 v)
{
(void) atomic_swap_32((volatile uint32_t *)a, (uint32_t)v);
}
static inline void my_atomic_store64(int64 volatile *a, int64 v)
{
(void) atomic_swap_64((volatile uint64_t *)a, (uint64_t)v);
}
static inline void my_atomic_storeptr(void * volatile *a, void *v)
{
(void) atomic_swap_ptr((volatile void **)a, (void *)v);
}
#endif /* ATOMIC_SOLARIS_INCLUDED */