X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/a28bf75d63c6a64e4c3b417c6052e45f42c6cedd..6465356a983ac139f81d3b7913cdb548477c346c:/darwin/OSAtomicLoadStoreEx.c

diff --git a/darwin/OSAtomicLoadStoreEx.c b/darwin/OSAtomicLoadStoreEx.c
deleted file mode 100644
index 75d008b..0000000
--- a/darwin/OSAtomicLoadStoreEx.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * Copyright (c) 2011 Apple Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-// OSAtomic.h is included by files that include this C file.
-/* #include "OSAtomic.h" */
-
-int32_t OSAtomicAdd32(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicAdd32);
-int32_t OSAtomicAdd32(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicAdd32);
-	int32_t r;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		r += v;
-		_osatomic_store_exclusive(p, r, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int64_t OSAtomicAdd64(int64_t v, volatile int64_t *p) _OSATOMIC_VARIANT_B(OSAtomicAdd64);
-int64_t OSAtomicAdd64(int64_t v, volatile int64_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicAdd64);
-
-	int64_t r;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive64(p, r);
-		r += v;
-		_osatomic_store_exclusive64(p, r, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int32_t OSAtomicOr32(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicOr32);
-int32_t OSAtomicOr32(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicOr32);
-	int32_t r;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		r |= v;
-		_osatomic_store_exclusive(p, r, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int32_t OSAtomicOr32Orig(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicOr32Orig);
-int32_t OSAtomicOr32Orig(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicOr32Orig);
-	int32_t r, n;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		n = r | v;
-		_osatomic_store_exclusive(p, n, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int32_t OSAtomicAnd32(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicAnd32);
-int32_t OSAtomicAnd32(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicAnd32);
-	int32_t r;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		r &= v;
-		_osatomic_store_exclusive(p, r, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int32_t OSAtomicAnd32Orig(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicAnd32Orig);
-int32_t OSAtomicAnd32Orig(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicAnd32Orig);
-	int32_t r, n;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		n = r & v;
-		_osatomic_store_exclusive(p, n, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int32_t OSAtomicXor32(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicXor32);
-int32_t OSAtomicXor32(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicXor32);
-	int32_t r;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		r ^= v;
-		_osatomic_store_exclusive(p, r, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-int32_t OSAtomicXor32Orig(int32_t v, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicXor32Orig);
-int32_t OSAtomicXor32Orig(int32_t v, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicXor32Orig);
-	int32_t r, n;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(p, r);
-		n = r ^ v;
-		_osatomic_store_exclusive(p, n, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-bool OSAtomicCompareAndSwap32(int32_t o, int32_t n, volatile int32_t *p) _OSATOMIC_VARIANT_B(OSAtomicCompareAndSwap32);
-bool OSAtomicCompareAndSwap32(int32_t o, int32_t n, volatile int32_t *p)
-{
-	_OSATOMIC_ALIAS_B(OSAtomicCompareAndSwapInt, OSAtomicCompareAndSwap32);
-
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwap32);
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwapInt);
-#ifndef __LP64__
-	_OSATOMIC_ALIAS_B(OSAtomicCompareAndSwapLong, OSAtomicCompareAndSwap32);
-	_OSATOMIC_ALIAS_B(OSAtomicCompareAndSwapPtr, OSAtomicCompareAndSwap32);
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwapLong);
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwapPtr);
-#endif
-
-	int32_t r;
-	uint32_t t;
-
-	do {
-		_osatomic_load_exclusive(p, r);
-		if (r != o) return false;
-		_osatomic_store_barrier();
-		_osatomic_store_exclusive(p, n, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return true;
-}
-
-bool OSAtomicCompareAndSwap64(int64_t o, int64_t n, volatile int64_t *p) _OSATOMIC_VARIANT_B(OSAtomicCompareAndSwap64);
-bool OSAtomicCompareAndSwap64(int64_t o, int64_t n, volatile int64_t *p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwap64);
-#ifdef __LP64__
-	_OSATOMIC_ALIAS_B(OSAtomicCompareAndSwapLong, OSAtomicCompareAndSwap64);
-	_OSATOMIC_ALIAS_B(OSAtomicCompareAndSwapPtr, OSAtomicCompareAndSwap64);
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwapLong);
-	_OSATOMIC_ALIAS_NB(OSAtomicCompareAndSwapPtr);
-#endif
-
-	int64_t r;
-	uint32_t t;
-
-	do {
-		_osatomic_load_exclusive64(p, r);
-		if (r != o) return false;
-		_osatomic_store_barrier();
-		_osatomic_store_exclusive64(p, n, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return true;
-}
-
-#if defined(_OSATOMIC_EXTRAS)
-
-void OSMemoryBarrier(void) _OSATOMIC_VARIANT(OSMemoryBarrier);
-void OSMemoryBarrier(void)
-{
-	_osatomic_barrier();
-}
-
-typedef volatile struct {
-	void	*item;
-	long	 unused;
-} OSQueueHead;
-
-void OSAtomicEnqueue(OSQueueHead *l, void *n, size_t o) _OSATOMIC_VARIANT(OSAtomicEnqueue);
-void OSAtomicEnqueue(OSQueueHead *l, void *n, size_t o)
-{
-	void ** r = (void **)((char *)n + o);
-	void * volatile * i = (void **)&(l->item);
-	void * q;
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(i, q);
-		*r = q;
-		_osatomic_store_exclusive(i, n, t);
-	} while (slowpath(t));
-	_osatomic_barrier();
-}
-
-void* OSAtomicDequeue(OSQueueHead *l, size_t o) _OSATOMIC_VARIANT(OSAtomicDequeue);
-void* OSAtomicDequeue(OSQueueHead *l, size_t o)
-{
-	void * h;
-	void ** r;
-	void * volatile * i = (void **)&(l->item);
-	uint32_t t;
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(i, r);
-		if (!r) return NULL;
-		h = *(void **)((char *)r + o);
-		_osatomic_store_exclusive(i, h, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return r;
-}
-
-#endif
-
-bool OSAtomicTestAndSet(uint32_t n, volatile void * p) _OSATOMIC_VARIANT_B(OSAtomicTestAndSet);
-bool OSAtomicTestAndSet(uint32_t n, volatile void * p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicTestAndSet);
-	uint32_t * ptr = (uint32_t *)((char *)p + (4 * (n / 32)));
-	uint32_t i, r, t;
-
-	n = (0x80 >> (n & 7)) << (n & ~7 & 31);
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(ptr, r);
-		i = r | n;
-		if (i == r) break;
-		_osatomic_store_exclusive(ptr, i, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return ((r & n) != 0);
-}
-
-bool OSAtomicTestAndClear(uint32_t n, volatile void * p) _OSATOMIC_VARIANT_B(OSAtomicTestAndClear);
-bool OSAtomicTestAndClear(uint32_t n, volatile void * p)
-{
-	_OSATOMIC_ALIAS_NB(OSAtomicTestAndClear);
-	uint32_t * ptr = (uint32_t *)((char *)p + (4 * (n / 32)));
-	uint32_t i, r, t;
-
-	n = (0x80 >> (n & 7)) << (n & ~7 & 31);
-
-	_osatomic_store_barrier();
-	do {
-		_osatomic_load_exclusive(ptr, r);
-		i = r & ~n;
-		if (i == r) break;
-		_osatomic_store_exclusive(ptr, i, t);
-	} while (slowpath(t));
-
-	_osatomic_barrier();
-	return ((r & n) != 0);
-}
-