/usr/include/mpich/primitives/opa_sun_atomic_ops.h is in libmpich-dev 3.2-6build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2008 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#ifndef OPA_SUN_ATOMIC_OPS_H_INCLUDED
#define OPA_SUN_ATOMIC_OPS_H_INCLUDED
#include <atomic.h>
typedef struct { volatile uint_t v; } OPA_int_t;
typedef struct { void * volatile v; } OPA_ptr_t;
#define OPA_INT_T_INITIALIZER(val_) { (val_) }
#define OPA_PTR_T_INITIALIZER(val_) { (val_) }
static _opa_inline int OPA_load_int(_opa_const OPA_int_t *ptr)
{
return (int)ptr->v;
}
static _opa_inline void OPA_store_int(OPA_int_t *ptr, int val)
{
ptr->v = (uint)val;
}
static _opa_inline void *OPA_load_ptr(_opa_const OPA_ptr_t *ptr)
{
return ptr->v;
}
static _opa_inline void OPA_store_ptr(OPA_ptr_t *ptr, void *val)
{
ptr->v = val;
}
static _opa_inline int OPA_load_acquire_int(_opa_const OPA_int_t *ptr)
{
int tmp;
tmp = ptr->v;
membar_enter();
return tmp;
}
static _opa_inline void OPA_store_release_int(OPA_int_t *ptr, int val)
{
membar_exit();
ptr->v = val;
}
static _opa_inline void *OPA_load_acquire_ptr(_opa_const OPA_ptr_t *ptr)
{
void *tmp;
tmp = ptr->v;
membar_enter();
return tmp;
}
static _opa_inline void OPA_store_release_ptr(OPA_ptr_t *ptr, void *val)
{
membar_exit();
ptr->v = val;
}
static _opa_inline void OPA_add_int(OPA_int_t *ptr, int val)
{
atomic_add_int(&ptr->v, val);
}
static _opa_inline void OPA_incr_int(OPA_int_t *ptr)
{
atomic_inc_uint(&ptr->v);
}
static _opa_inline void OPA_decr_int(OPA_int_t *ptr)
{
atomic_dec_uint(&ptr->v);
}
static _opa_inline int OPA_decr_and_test_int(OPA_int_t *ptr)
{
return atomic_dec_uint_nv(&ptr->v) == 0;
}
static _opa_inline int OPA_fetch_and_add_int(OPA_int_t *ptr, int val)
{
return (int)atomic_add_int_nv(&ptr->v, val) - val;
}
static _opa_inline int OPA_fetch_and_decr_int(OPA_int_t *ptr)
{
return (int)atomic_dec_uint_nv(&ptr->v) + 1;
}
static _opa_inline int OPA_fetch_and_incr_int(OPA_int_t *ptr)
{
return (int)atomic_inc_uint_nv(&ptr->v) - 1;
}
static _opa_inline void *OPA_cas_ptr(OPA_ptr_t *ptr, void *oldv, void *newv)
{
return atomic_cas_ptr(ptr, oldv, newv);
}
static _opa_inline int OPA_cas_int(OPA_int_t *ptr, int oldv, int newv)
{
return (int)atomic_cas_uint(&ptr->v, (uint_t)oldv, (uint_t)newv);
}
static _opa_inline void *OPA_swap_ptr(OPA_ptr_t *ptr, void *val)
{
return atomic_swap_ptr(ptr, val);
}
static _opa_inline int OPA_swap_int(OPA_int_t *ptr, int val)
{
return (int)atomic_swap_uint(&ptr->v, (uint_t) val);
}
#define OPA_write_barrier() membar_producer()
#define OPA_read_barrier() membar_consumer()
#define OPA_read_write_barrier() do { membar_consumer(); membar_producer(); } while (0)
/* is this portable enough? */
#define OPA_compiler_barrier() __asm__ __volatile__ ( "" ::: "memory" )
#endif /* OPA_SUN_ATOMIC_OPS_H_INCLUDED */
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