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base: support for 64-bit atomic increment/decrement

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This commit is contained in:
Luke Howard
2023-01-07 10:53:06 +11:00
parent 8fcf05ac2e
commit 8c25c0d46a
3 changed files with 66 additions and 45 deletions
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85
lib/base/heimbase-atomics.h
View File

@@ -36,6 +36,8 @@
#ifndef HEIM_BASE_ATOMICS_H
#define HEIM_BASE_ATOMICS_H 1
#include <stdint.h>
/*
* Atomic operations
*/
@@ -50,10 +52,10 @@
#define heim_base_atomic(T) _Atomic(T)
#define heim_base_atomic_inc(x) (atomic_fetch_add((x), 1) + 1)
#define heim_base_atomic_dec(x) (atomic_fetch_sub((x), 1) - 1)
#define heim_base_atomic_integer_type heim_base_atomic(unsigned int)
#define heim_base_atomic_integer_max UINT_MAX
#define heim_base_atomic_inc_32(x) (atomic_fetch_add((x), 1) + 1)
#define heim_base_atomic_dec_32(x) (atomic_fetch_sub((x), 1) - 1)
#define heim_base_atomic_inc_64(x) (atomic_fetch_add((x), 1) + 1)
#define heim_base_atomic_dec_64(x) (atomic_fetch_sub((x), 1) - 1)
#define heim_base_exchange_pointer(t,v) atomic_exchange((t), (v))
#define heim_base_exchange_32(t,v) atomic_exchange((t), (v))
@@ -63,10 +65,10 @@
#define heim_base_atomic_barrier() __sync_synchronize()
#define heim_base_atomic_inc(x) __sync_add_and_fetch((x), 1)
#define heim_base_atomic_dec(x) __sync_sub_and_fetch((x), 1)
#define heim_base_atomic_integer_type unsigned int
#define heim_base_atomic_integer_max UINT_MAX
#define heim_base_atomic_inc_32(x) __sync_add_and_fetch((x), 1)
#define heim_base_atomic_dec_32(x) __sync_sub_and_fetch((x), 1)
#define heim_base_atomic_inc_64(x) __sync_add_and_fetch((x), 1)
#define heim_base_atomic_dec_64(x) __sync_sub_and_fetch((x), 1)
#ifndef __has_builtin
#define __has_builtin(x) 0
@@ -94,14 +96,16 @@ static inline void __heim_base_atomic_barrier(void)
#define heim_base_atomic_barrier() __heim_base_atomic_barrier()
#define heim_base_atomic_inc(x) atomic_inc_uint_nv((volatile uint_t *)(x))
#define heim_base_atomic_dec(x) atomic_dec_uint_nv((volatile uint_t *)(x))
#define heim_base_atomic_integer_type uint_t
#define heim_base_atomic_integer_max UINT_MAX
#define heim_base_atomic(T) volatile T
#define heim_base_exchange_pointer(t,v) atomic_swap_ptr((volatile void *)(t), (void *)(v))
#define heim_base_exchange_32(t,v) atomic_swap_32((volatile uint32_t *)(t), (v))
#define heim_base_exchange_64(t,v) atomic_swap_64((volatile uint64_t *)(t), (v))
#define heim_base_atomic_inc_32(x) atomic_inc_32_nv((x))
#define heim_base_atomic_dec_32(x) atomic_dec_32_nv((x))
#define heim_base_atomic_inc_64(x) atomic_inc_64_nv((x))
#define heim_base_atomic_dec_64(x) atomic_dec_64_nv((x))
#define heim_base_exchange_pointer(t,v) atomic_swap_ptr((t), (void *)(v))
#define heim_base_exchange_32(t,v) atomic_swap_32((t), (v))
#define heim_base_exchange_64(t,v) atomic_swap_64((t), (v))
#elif defined(_AIX)
@@ -109,10 +113,10 @@ static inline void __heim_base_atomic_barrier(void)
#define heim_base_atomic_barrier() __isync()
#define heim_base_atomic_inc(x) (fetch_and_addlp((atomic_l)(x), 1) + 1)
#define heim_base_atomic_dec(x) (fetch_and_addlp((atomic_l)(x), -1) - 1)
#define heim_base_atomic_integer_type long
#define heim_base_atomic_integer_max LONG_MAX
#define heim_base_atomic_inc_32(x) (fetch_and_add((atomic_p)(x), 1) + 1)
#define heim_base_atomic_dec_32(x) (fetch_and_add((atomic_p)(x), -1) - 1)
#define heim_base_atomic_inc_64(x) (fetch_and_addlp((atomic_l)(x), 1) + 1)
#define heim_base_atomic_dec_64(x) (fetch_and_addlp((atomic_l)(x), -1) - 1)
static inline void *
heim_base_exchange_pointer(void *p, void *newval)
@@ -151,10 +155,10 @@ heim_base_exchange_64(uint64_t *p, uint64_t newval)
#define heim_base_atomic_barrier() MemoryBarrier()
#define heim_base_atomic_inc(x) InterlockedIncrement(x)
#define heim_base_atomic_dec(x) InterlockedDecrement(x)
#define heim_base_atomic_integer_type LONG
#define heim_base_atomic_integer_max MAXLONG
#define heim_base_atomic_inc_32(x) InterlockedIncrement(x)
#define heim_base_atomic_dec_32(x) InterlockedDecrement(x)
#define heim_base_atomic_inc_64(x) InterlockedIncrement64(x)
#define heim_base_atomic_dec_64(x) InterlockedDecrement64(x)
#define heim_base_exchange_pointer(t,v) InterlockedExchangePointer((PVOID volatile *)(t), (PVOID)(v))
#define heim_base_exchange_32(t,v) ((ULONG)InterlockedExchange((LONG volatile *)(t), (LONG)(v)))
@@ -167,23 +171,40 @@ heim_base_exchange_64(uint64_t *p, uint64_t newval)
#define HEIM_BASE_NEED_ATOMIC_MUTEX 1
extern HEIMDAL_MUTEX _heim_base_mutex;
#define heim_base_atomic_integer_type unsigned int
#define heim_base_atomic_integer_max UINT_MAX
static inline heim_base_atomic_integer_type
heim_base_atomic_inc(heim_base_atomic_integer_type *x)
static inline uint32_t
heim_base_atomic_inc_32(uint32_t *x)
{
heim_base_atomic_integer_type t;
uint32_t t;
HEIMDAL_MUTEX_lock(&_heim_base_mutex);
t = ++(*x);
HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
return t;
}
static inline heim_base_atomic_integer_type
heim_base_atomic_dec(heim_base_atomic_integer_type *x)
static inline uint32_t
heim_base_atomic_dec_32(uint32_t *x)
{
heim_base_atomic_integer_type t;
uint32_t t;
HEIMDAL_MUTEX_lock(&_heim_base_mutex);
t = --(*x);
HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
return t;
}
static inline uint64_t
heim_base_atomic_inc_64(uint64_t *x)
{
uint64_t t;
HEIMDAL_MUTEX_lock(&_heim_base_mutex);
t = ++(*x);
HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
return t;
}
static inline uint64_t
heim_base_atomic_dec_64(uint64_t *x)
{
uint64_t t;
HEIMDAL_MUTEX_lock(&_heim_base_mutex);
t = --(*x);
HEIMDAL_MUTEX_unlock(&_heim_base_mutex);

20
lib/base/heimbase.c
View File

@@ -37,11 +37,11 @@
#include "heimbase-atomics.h"
#include <syslog.h>
static heim_base_atomic_integer_type tidglobal = HEIM_TID_USER;
static heim_base_atomic(uint32_t) tidglobal = HEIM_TID_USER;
struct heim_base {
heim_type_t isa;
heim_base_atomic_integer_type ref_cnt;
heim_base_atomic(uint32_t) ref_cnt;
HEIM_TAILQ_ENTRY(heim_base) autorel;
heim_auto_release_t autorelpool;
uintptr_t isaextra[3];
@@ -50,7 +50,7 @@ struct heim_base {
/* specialized version of base */
struct heim_base_mem {
heim_type_t isa;
heim_base_atomic_integer_type ref_cnt;
heim_base_atomic(uint32_t) ref_cnt;
HEIM_TAILQ_ENTRY(heim_base) autorel;
heim_auto_release_t autorelpool;
const char *name;
@@ -94,10 +94,10 @@ heim_retain(heim_object_t ptr)
p = PTR2BASE(ptr);
if (heim_base_atomic_load(&p->ref_cnt) == heim_base_atomic_integer_max)
if (heim_base_atomic_load(&p->ref_cnt) == UINT32_MAX)
return ptr;
if ((heim_base_atomic_inc(&p->ref_cnt) - 1) == 0)
if ((heim_base_atomic_inc_32(&p->ref_cnt) - 1) == 0)
heim_abort("resurection");
return ptr;
}
@@ -111,7 +111,7 @@ heim_retain(heim_object_t ptr)
void
heim_release(void *ptr)
{
heim_base_atomic_integer_type old;
heim_base_atomic(uint32_t) old;
struct heim_base *p;
if (ptr == NULL || heim_base_is_tagged(ptr))
@@ -119,10 +119,10 @@ heim_release(void *ptr)
p = PTR2BASE(ptr);
if (heim_base_atomic_load(&p->ref_cnt) == heim_base_atomic_integer_max)
if (heim_base_atomic_load(&p->ref_cnt) == UINT32_MAX)
return;
old = heim_base_atomic_dec(&p->ref_cnt) + 1;
old = heim_base_atomic_dec_32(&p->ref_cnt) + 1;
if (old > 1)
return;
@@ -161,7 +161,7 @@ void
_heim_make_permanent(heim_object_t ptr)
{
struct heim_base *p = PTR2BASE(ptr);
heim_base_atomic_store(&p->ref_cnt, heim_base_atomic_integer_max);
heim_base_atomic_store(&p->ref_cnt, UINT32_MAX);
}
@@ -322,7 +322,7 @@ _heim_create_type(const char *name,
if (type == NULL)
return NULL;
type->tid = heim_base_atomic_inc(&tidglobal);
type->tid = heim_base_atomic_inc_32(&tidglobal);
type->name = name;
type->init = init;
type->dealloc = dealloc;

6
lib/base/log.c
View File

@@ -53,7 +53,7 @@ struct heim_log_facility_internal {
struct heim_log_facility_s {
char *program;
volatile heim_base_atomic(size_t) refs;
volatile heim_base_atomic(uint32_t) refs;
size_t len;
struct heim_log_facility_internal *val;
};
@@ -157,7 +157,7 @@ heim_log_facility *
heim_log_ref(heim_log_facility *fac)
{
if (fac)
(void) heim_base_atomic_inc(&fac->refs);
(void) heim_base_atomic_inc_32(&fac->refs);
return fac;
}
@@ -467,7 +467,7 @@ heim_closelog(heim_context context, heim_log_facility *fac)
{
int i;
if (!fac || heim_base_atomic_dec(&fac->refs))
if (!fac || heim_base_atomic_dec_32(&fac->refs))
return;
for (i = 0; i < fac->len; i++)
(*fac->val[i].close_func)(fac->val[i].data);