libkern/gen/OSAtomicOperations.c

64 SInt32	OSIncrementAtomic(volatile SInt32 * value)
66 	return OSAddAtomic(1, value);
70 SInt32	OSDecrementAtomic(volatile SInt32 * value)
72 	return OSAddAtomic(-1, value);
75 static UInt32	OSBitwiseAtomic(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt32 * value)
81 		oldValue = *value;
83 	} while (! OSCompareAndSwap(oldValue, newValue, value));
89 UInt32	OSBitAndAtomic(UInt32 mask, volatile UInt32 * value)
91 	return OSBitwiseAtomic(mask, 0, 0, value);
95 UInt32	OSBitOrAtomic(UInt32 mask, volatile UInt32 * value)
97 	return OSBitwiseAtomic((UInt32) -1, mask, 0, value);
101 UInt32	OSBitXorAtomic(UInt32 mask, volatile UInt32 * value)
103 	return OSBitwiseAtomic((UInt32) -1, 0, mask, value);
161 SInt8	OSIncrementAtomic8(volatile SInt8 * value)
163 	return OSAddAtomic8(1, value);
166 SInt8	OSDecrementAtomic8(volatile SInt8 * value)
168 	return OSAddAtomic8(-1, value);
172 SInt8	OSAddAtomic8(SInt32 amount, volatile SInt8 * value)
178 		oldValue = *value;
180 	} while (! OSCompareAndSwap8((UInt8) oldValue, (UInt8) newValue, (volatile UInt8 *) value));
186 static UInt8	OSBitwiseAtomic8(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt8 * value)
192 		oldValue = *value;
194 	} while (! OSCompareAndSwap8(oldValue, newValue, value));
199 UInt8	OSBitAndAtomic8(UInt32 mask, volatile UInt8 * value)
201 	return OSBitwiseAtomic8(mask, 0, 0, value);
204 UInt8	OSBitOrAtomic8(UInt32 mask, volatile UInt8 * value)
206 	return OSBitwiseAtomic8((UInt32) -1, mask, 0, value);
209 UInt8	OSBitXorAtomic8(UInt32 mask, volatile UInt8 * value)
211 	return OSBitwiseAtomic8((UInt32) -1, 0, mask, value);
235 SInt16	OSIncrementAtomic16(volatile SInt16 * value)
237 	return OSAddAtomic16(1, value);
240 SInt16	OSDecrementAtomic16(volatile SInt16 * value)
242 	return OSAddAtomic16(-1, value);
246 SInt16	OSAddAtomic16(SInt32 amount, volatile SInt16 * value)
252 		oldValue = *value;
254 	} while (! OSCompareAndSwap16((UInt16) oldValue, (UInt16) newValue, (volatile UInt16 *) value));
260 static UInt16	OSBitwiseAtomic16(UInt32 and_mask, UInt32 or_mask, UInt32 xor_mask, volatile UInt16 * value)
266 		oldValue = *value;
268 	} while (! OSCompareAndSwap16(oldValue, newValue, value));
273 UInt16	OSBitAndAtomic16(UInt32 mask, volatile UInt16 * value)
275 	return OSBitwiseAtomic16(mask, 0, 0, value);
278 UInt16	OSBitOrAtomic16(UInt32 mask, volatile UInt16 * value)
280 	return OSBitwiseAtomic16((UInt32) -1, mask, 0, value);
283 UInt16	OSBitXorAtomic16(UInt32 mask, volatile UInt16 * value)
285 	return OSBitwiseAtomic16((UInt32) -1, 0, mask, value);