atomic.h File Reference

Atomic operations. More...

#include <intrin.h>
#include <windows.h>

Macros
#define	atomic_int8   volatile CHAR
	Integer type for atomic operations. (int8)
#define	atomic_int16   volatile SHORT
	Integer type for atomic operations. (int16)
#define	atomic_int32   volatile LONG
	Integer type for atomic operations. (int32)
#define	atomic_int64   volatile LONG64
	Integer type for atomic operations. (int64)
#define	atomicExchange8(memory, value)
	Atomically exchanges the value of the variable that memory points to.
#define	atomicExchange16(memory, value)
	Atomically exchanges the value of the variable that memory points to.
#define	atomicExchange32(memory, value)
	Atomically exchanges the value of the variable that memory points to.
#define	atomicExchange64(memory, value)
	Atomically exchanges the value of the variable that memory points to.
#define	atomicFetchAnd8(memory, value)
	Atomically performs AND operation to the variable that memory points to.
#define	atomicFetchAnd16(memory, value)
	Atomically performs AND operation to the variable that memory points to.
#define	atomicFetchAnd32(memory, value)
	Atomically performs AND operation to the variable that memory points to.
#define	atomicFetchAnd64(memory, value)
	Atomically performs AND operation to the variable that memory points to.
#define	atomicFetchOr8(memory, value)
	Atomically performs OR operation to the variable that memory points to.
#define	atomicFetchOr16(memory, value)
	Atomically performs OR operation to the variable that memory points to.
#define	atomicFetchOr32(memory, value)
	Atomically performs OR operation to the variable that memory points to.
#define	atomicFetchOr64(memory, value)
	Atomically performs OR operation to the variable that memory points to.
#define	atomicFetchXor8(memory, value)
	Atomically performs XOR operation to the variable that memory points to.
#define	atomicFetchXor16(memory, value)
	Atomically performs XOR operation to the variable that memory points to.
#define	atomicFetchXor32(memory, value)
	Atomically performs XOR operation to the variable that memory points to.
#define	atomicFetchXor64(memory, value)
	Atomically performs XOR operation to the variable that memory points to.
#define	atomicFetchAdd8(memory, value)
	Atomically adds the value to the variable that memory points to.
#define	atomicFetchAdd16(memory, value)
	Atomically adds the value to the variable that memory points to.
#define	atomicFetchAdd32(memory, value)
	Atomically adds the value to the variable that memory points to.
#define	atomicFetchAdd64(memory, value)
	Atomically adds the value to the variable that memory points to.

Detailed Description

Atomic operations.

Atomic operations are used to perform certain operations in a way that is guaranteed to be indivisible and not subject to interruption by other threads. This is particularly useful in multithreaded programming to avoid race conditions and ensure correct behavior when multiple threads are concurrently accessing shared data.

Macro Definition Documentation

atomicExchange8

#define atomicExchange8	(		memory,
			value )

Value:

_InterlockedExchange8(memory, value)

Atomically exchanges the value of the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be written
	value	variable whose value is to be written to the variable that memory points to

atomicExchange16

#define atomicExchange16	(		memory,
			value )

Value:

_InterlockedExchange16(memory, value)

Atomically exchanges the value of the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be written
	value	variable whose value is to be written to the variable that memory points to

atomicExchange32

#define atomicExchange32	(		memory,
			value )

Value:

_InterlockedExchange(memory, value)

Atomically exchanges the value of the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be written
	value	variable whose value is to be written to the variable that memory points to

atomicExchange64

#define atomicExchange64	(		memory,
			value )

Value:

_InterlockedExchange64(memory, value)

Atomically exchanges the value of the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be written
	value	variable whose value is to be written to the variable that memory points to

atomicFetchAnd8

#define atomicFetchAnd8	(		memory,
			value )

Value:

_InterlockedAnd8(memory, value)

Atomically performs AND operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the AND operation is to be performed
	value	variable whose value is to be used for an AND operation

atomicFetchAnd16

#define atomicFetchAnd16	(		memory,
			value )

Value:

_InterlockedAnd16(memory, value)

Atomically performs AND operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the AND operation is to be performed
	value	variable whose value is to be used for an AND operation

atomicFetchAnd32

#define atomicFetchAnd32	(		memory,
			value )

Value:

_InterlockedAnd(memory, value)

Atomically performs AND operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the AND operation is to be performed
	value	variable whose value is to be used for an AND operation

atomicFetchAnd64

#define atomicFetchAnd64	(		memory,
			value )

Value:

_InterlockedAnd64(memory, value)

Atomically performs AND operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the AND operation is to be performed
	value	variable whose value is to be used for an AND operation

atomicFetchOr8

#define atomicFetchOr8	(		memory,
			value )

Value:

_InterlockedOr8(memory, value)

Atomically performs OR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the OR operation is to be performed
	value	variable whose value is to be used for an OR operation

atomicFetchOr16

#define atomicFetchOr16	(		memory,
			value )

Value:

_InterlockedOr16(memory, value)

Atomically performs OR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the OR operation is to be performed
	value	variable whose value is to be used for an OR operation

atomicFetchOr32

#define atomicFetchOr32	(		memory,
			value )

Value:

_InterlockedOr(memory, value)

Atomically performs OR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the OR operation is to be performed
	value	variable whose value is to be used for an OR operation

atomicFetchOr64

#define atomicFetchOr64	(		memory,
			value )

Value:

_InterlockedOr64(memory, value)

Atomically performs OR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the OR operation is to be performed
	value	variable whose value is to be used for an OR operation

atomicFetchXor8

#define atomicFetchXor8	(		memory,
			value )

Value:

_InterlockedXor8(memory, value)

Atomically performs XOR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the XOR operation is to be performed
	value	variable whose value is to be used for an XOR operation

atomicFetchXor16

#define atomicFetchXor16	(		memory,
			value )

Value:

_InterlockedXor16(memory, value)

Atomically performs XOR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the XOR operation is to be performed
	value	variable whose value is to be used for an XOR operation

atomicFetchXor32

#define atomicFetchXor32	(		memory,
			value )

Value:

_InterlockedXor(memory, value)

Atomically performs XOR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the XOR operation is to be performed
	value	variable whose value is to be used for an XOR operation

atomicFetchXor64

#define atomicFetchXor64	(		memory,
			value )

Value:

_InterlockedXor64(memory, value)

Atomically performs XOR operation to the variable that memory points to.

Returns

The current value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the XOR operation is to be performed
	value	variable whose value is to be used for an XOR operation

atomicFetchAdd8

#define atomicFetchAdd8	(		memory,
			value )

Value:

_InterlockedExchangeAdd8(memory, value)

Atomically adds the value to the variable that memory points to.

Returns

The initial value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be added
	value	variable whose value is to be added to the variable that memory points to

atomicFetchAdd16

#define atomicFetchAdd16	(		memory,
			value )

Value:

_InterlockedExchangeAdd16(memory, value)

Atomically adds the value to the variable that memory points to.

Returns

The initial value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be added
	value	variable whose value is to be added to the variable that memory points to

atomicFetchAdd32

#define atomicFetchAdd32	(		memory,
			value )

Value:

_InterlockedExchangeAdd(memory, value)

Atomically adds the value to the variable that memory points to.

Returns

The initial value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be added
	value	variable whose value is to be added to the variable that memory points to

atomicFetchAdd64

#define atomicFetchAdd64	(		memory,
			value )

Value:

_InterlockedExchangeAdd64(memory, value)

Atomically adds the value to the variable that memory points to.

Returns

The initial value of the variable that memory points to.

Parameters

[in,out]	memory	pointer of a variable to which the value is to be added
	value	variable whose value is to be added to the variable that memory points to