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Atomics: Make naming more obvious about which value is being returned

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This commit is contained in:
Sergey Sharybin
2016-11-15 12:16:26 +01:00
parent 46b5cdaa4d
commit 4ee08e9533
18 changed files with 78 additions and 78 deletions
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18
intern/atomic/atomic_ops.h
View File

@@ -77,13 +77,13 @@
/* Function prototypes. */
#if (LG_SIZEOF_PTR == 8 || LG_SIZEOF_INT == 8)
ATOMIC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x);
ATOMIC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x);
ATOMIC_INLINE uint64_t atomic_add_and_fetch_uint64(uint64_t *p, uint64_t x);
ATOMIC_INLINE uint64_t atomic_sub_and_fetch_uint64(uint64_t *p, uint64_t x);
ATOMIC_INLINE uint64_t atomic_cas_uint64(uint64_t *v, uint64_t old, uint64_t _new);
#endif
ATOMIC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint32_t atomic_add_and_fetch_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint32_t atomic_sub_and_fetch_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint32_t atomic_cas_uint32(uint32_t *v, uint32_t old, uint32_t _new);
ATOMIC_INLINE uint32_t atomic_fetch_and_add_uint32(uint32_t *p, uint32_t x);
@@ -93,18 +93,18 @@ ATOMIC_INLINE uint32_t atomic_fetch_and_and_uint32(uint32_t *p, uint32_t x);
ATOMIC_INLINE uint8_t atomic_fetch_and_or_uint8(uint8_t *p, uint8_t b);
ATOMIC_INLINE uint8_t atomic_fetch_and_and_uint8(uint8_t *p, uint8_t b);
ATOMIC_INLINE size_t atomic_add_z(size_t *p, size_t x);
ATOMIC_INLINE size_t atomic_sub_z(size_t *p, size_t x);
ATOMIC_INLINE size_t atomic_add_and_fetch_z(size_t *p, size_t x);
ATOMIC_INLINE size_t atomic_sub_and_fetch_z(size_t *p, size_t x);
ATOMIC_INLINE size_t atomic_cas_z(size_t *v, size_t old, size_t _new);
ATOMIC_INLINE unsigned atomic_add_u(unsigned *p, unsigned x);
ATOMIC_INLINE unsigned atomic_sub_u(unsigned *p, unsigned x);
ATOMIC_INLINE unsigned atomic_add_and_fetch_u(unsigned *p, unsigned x);
ATOMIC_INLINE unsigned atomic_sub_and_fetch_u(unsigned *p, unsigned x);
ATOMIC_INLINE unsigned atomic_cas_u(unsigned *v, unsigned old, unsigned _new);
/* WARNING! Float 'atomics' are really faked ones, those are actually closer to some kind of spinlock-sync'ed operation,
* which means they are only efficient if collisions are highly unlikely (i.e. if probability of two threads
* working on the same pointer at the same time is very low). */
ATOMIC_INLINE float atomic_add_fl(float *p, const float x);
ATOMIC_INLINE float atomic_add_and_fetch_fl(float *p, const float x);
/******************************************************************************/
/* Include system-dependent implementations. */

26
intern/atomic/intern/atomic_ops_ext.h
View File

@@ -56,25 +56,25 @@
/******************************************************************************/
/* size_t operations. */
ATOMIC_INLINE size_t atomic_add_z(size_t *p, size_t x)
ATOMIC_INLINE size_t atomic_add_and_fetch_z(size_t *p, size_t x)
{
assert(sizeof(size_t) == LG_SIZEOF_PTR);
#if (LG_SIZEOF_PTR == 8)
return (size_t)atomic_add_uint64((uint64_t *)p, (uint64_t)x);
return (size_t)atomic_add_and_fetch_uint64((uint64_t *)p, (uint64_t)x);
#elif (LG_SIZEOF_PTR == 4)
return (size_t)atomic_add_uint32((uint32_t *)p, (uint32_t)x);
return (size_t)atomic_add_and_fetch_uint32((uint32_t *)p, (uint32_t)x);
#endif
}
ATOMIC_INLINE size_t atomic_sub_z(size_t *p, size_t x)
ATOMIC_INLINE size_t atomic_sub_and_fetch_z(size_t *p, size_t x)
{
assert(sizeof(size_t) == LG_SIZEOF_PTR);
#if (LG_SIZEOF_PTR == 8)
return (size_t)atomic_add_uint64((uint64_t *)p, (uint64_t)-((int64_t)x));
return (size_t)atomic_add_and_fetch_uint64((uint64_t *)p, (uint64_t)-((int64_t)x));
#elif (LG_SIZEOF_PTR == 4)
return (size_t)atomic_add_uint32((uint32_t *)p, (uint32_t)-((int32_t)x));
return (size_t)atomic_add_and_fetch_uint32((uint32_t *)p, (uint32_t)-((int32_t)x));
#endif
}
@@ -91,25 +91,25 @@ ATOMIC_INLINE size_t atomic_cas_z(size_t *v, size_t old, size_t _new)
/******************************************************************************/
/* unsigned operations. */
ATOMIC_INLINE unsigned atomic_add_u(unsigned *p, unsigned x)
ATOMIC_INLINE unsigned atomic_add_and_fetch_u(unsigned *p, unsigned x)
{
assert(sizeof(unsigned) == LG_SIZEOF_INT);
#if (LG_SIZEOF_INT == 8)
return (unsigned)atomic_add_uint64((uint64_t *)p, (uint64_t)x);
return (unsigned)atomic_add_and_fetch_uint64((uint64_t *)p, (uint64_t)x);
#elif (LG_SIZEOF_INT == 4)
return (unsigned)atomic_add_uint32((uint32_t *)p, (uint32_t)x);
return (unsigned)atomic_add_and_fetch_uint32((uint32_t *)p, (uint32_t)x);
#endif
}
ATOMIC_INLINE unsigned atomic_sub_u(unsigned *p, unsigned x)
ATOMIC_INLINE unsigned atomic_sub_and_fetch_u(unsigned *p, unsigned x)
{
assert(sizeof(unsigned) == LG_SIZEOF_INT);
#if (LG_SIZEOF_INT == 8)
return (unsigned)atomic_add_uint64((uint64_t *)p, (uint64_t)-((int64_t)x));
return (unsigned)atomic_add_and_fetch_uint64((uint64_t *)p, (uint64_t)-((int64_t)x));
#elif (LG_SIZEOF_INT == 4)
return (unsigned)atomic_add_uint32((uint32_t *)p, (uint32_t)-((int32_t)x));
return (unsigned)atomic_add_and_fetch_uint32((uint32_t *)p, (uint32_t)-((int32_t)x));
#endif
}
@@ -127,7 +127,7 @@ ATOMIC_INLINE unsigned atomic_cas_u(unsigned *v, unsigned old, unsigned _new)
/******************************************************************************/
/* float operations. */
ATOMIC_INLINE float atomic_add_fl(float *p, const float x)
ATOMIC_INLINE float atomic_add_and_fetch_fl(float *p, const float x)
{
assert(sizeof(float) == sizeof(uint32_t));

8
intern/atomic/intern/atomic_ops_msvc.h
View File

@@ -43,12 +43,12 @@
/******************************************************************************/
/* 64-bit operations. */
#if (LG_SIZEOF_PTR == 8 || LG_SIZEOF_INT == 8)
ATOMIC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x)
ATOMIC_INLINE uint64_t atomic_add_and_fetch_uint64(uint64_t *p, uint64_t x)
{
return InterlockedExchangeAdd64((int64_t *)p, (int64_t)x) + x;
}
ATOMIC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x)
ATOMIC_INLINE uint64_t atomic_sub_and_fetch_uint64(uint64_t *p, uint64_t x)
{
return InterlockedExchangeAdd64((int64_t *)p, -((int64_t)x)) - x;
}
@@ -61,12 +61,12 @@ ATOMIC_INLINE uint64_t atomic_cas_uint64(uint64_t *v, uint64_t old, uint64_t _ne
/******************************************************************************/
/* 32-bit operations. */
ATOMIC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x)
ATOMIC_INLINE uint32_t atomic_add_and_fetch_uint32(uint32_t *p, uint32_t x)
{
return InterlockedExchangeAdd(p, x) + x;
}
ATOMIC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x)
ATOMIC_INLINE uint32_t atomic_sub_and_fetch_uint32(uint32_t *p, uint32_t x)
{
return InterlockedExchangeAdd(p, -((int32_t)x)) - x;
}

16
intern/atomic/intern/atomic_ops_unix.h
View File

@@ -58,12 +58,12 @@
/* 64-bit operations. */
#if (LG_SIZEOF_PTR == 8 || LG_SIZEOF_INT == 8)
# if (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) || defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_8))
ATOMIC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x)
ATOMIC_INLINE uint64_t atomic_add_and_fetch_uint64(uint64_t *p, uint64_t x)
{
return __sync_add_and_fetch(p, x);
}
ATOMIC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x)
ATOMIC_INLINE uint64_t atomic_sub_and_fetch_uint64(uint64_t *p, uint64_t x)
{
return __sync_sub_and_fetch(p, x);
}
@@ -73,7 +73,7 @@ ATOMIC_INLINE uint64_t atomic_cas_uint64(uint64_t *v, uint64_t old, uint64_t _ne
return __sync_val_compare_and_swap(v, old, _new);
}
# elif (defined(__amd64__) || defined(__x86_64__))
ATOMIC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x)
ATOMIC_INLINE uint64_t atomic_add_and_fetch_uint64(uint64_t *p, uint64_t x)
{
asm volatile (
"lock; xaddq %0, %1;"
@@ -83,7 +83,7 @@ ATOMIC_INLINE uint64_t atomic_add_uint64(uint64_t *p, uint64_t x)
return x;
}
ATOMIC_INLINE uint64_t atomic_sub_uint64(uint64_t *p, uint64_t x)
ATOMIC_INLINE uint64_t atomic_sub_and_fetch_uint64(uint64_t *p, uint64_t x)
{
x = (uint64_t)(-(int64_t)x);
asm volatile (
@@ -112,12 +112,12 @@ ATOMIC_INLINE uint64_t atomic_cas_uint64(uint64_t *v, uint64_t old, uint64_t _ne
/******************************************************************************/
/* 32-bit operations. */
#if (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) || defined(JE_FORCE_SYNC_COMPARE_AND_SWAP_4))
ATOMIC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x)
ATOMIC_INLINE uint32_t atomic_add_and_fetch_uint32(uint32_t *p, uint32_t x)
{
return __sync_add_and_fetch(p, x);
}
ATOMIC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x)
ATOMIC_INLINE uint32_t atomic_sub_and_fetch_uint32(uint32_t *p, uint32_t x)
{
return __sync_sub_and_fetch(p, x);
}
@@ -127,7 +127,7 @@ ATOMIC_INLINE uint32_t atomic_cas_uint32(uint32_t *v, uint32_t old, uint32_t _ne
return __sync_val_compare_and_swap(v, old, _new);
}
#elif (defined(__i386__) || defined(__amd64__) || defined(__x86_64__))
ATOMIC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x)
ATOMIC_INLINE uint32_t atomic_add_and_fetch_uint32(uint32_t *p, uint32_t x)
{
uint32_t ret = x;
asm volatile (
@@ -138,7 +138,7 @@ ATOMIC_INLINE uint32_t atomic_add_uint32(uint32_t *p, uint32_t x)
return ret+x;
}
ATOMIC_INLINE uint32_t atomic_sub_uint32(uint32_t *p, uint32_t x)
ATOMIC_INLINE uint32_t atomic_sub_and_fetch_uint32(uint32_t *p, uint32_t x)
{
ret = (uint32_t)(-(int32_t)x);
asm volatile (