Kernel Synchronization Support

Files
file	spinlock.h
	Kernel synchronization primitives declarations.
file	spinlock.cpp
	Kernel synchronization primitives implementation.
Classes
class	Zygoma::SpinLockMutex
	A MUTual EXclusion object that is lockable via a spinlock. More...
class	Zygoma::SpinLock
	A SpinLock. More...
Typedefs
typedef Arch::AtomicWord	Zygoma::AtomicWord
	An atomic word.
Functions
AtomicWord	Zygoma::atomicExchange (volatile AtomicWord *mem, AtomicWord value)
	Atomically exchanges the value found at mem with the value passed in as value, returns the original value found at mem.
AtomicWord	Zygoma::atomicExchangeAndAdd (volatile AtomicWord *mem, AtomicWord value)
	Atomically sets the value at mem to value, returns the sum of value and the value originally found at mem.
void	Zygoma::atomicAdd (volatile AtomicWord *mem, AtomicWord value)
	Atomically adds value to the value stored at mem, stores result at mem.

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Typedef Documentation

typedef Arch::AtomicWord Zygoma::AtomicWord

An atomic word.

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Function Documentation

void Zygoma::atomicAdd (  volatile AtomicWord *  mem, AtomicWord  value )

Atomically adds value to the value stored at mem, stores result at mem. This is a forwarding function wrapper for the architecture-specific implementing function. Parameters: mem  [IN] A pointer to an atomic word in memory which will have its value exchanged with value. value  [IN] An atomic word that will be written at mem. Here is the call graph for this function:

AtomicWord Zygoma::atomicExchange (  volatile AtomicWord *  mem, AtomicWord  value )

Atomically exchanges the value found at mem with the value passed in as value, returns the original value found at mem. Parameters: mem  [IN] A pointer to an atomic word in memory which will have its value exchanged with value. value  [IN] An atomic word that will be written at mem. Returns: The value originally held at mem. This is a forwarding function wrapper for the architecture-specific implementing function. Here is the call graph for this function:

AtomicWord Zygoma::atomicExchangeAndAdd (  volatile AtomicWord *  mem, AtomicWord  value )

Atomically sets the value at mem to value, returns the sum of value and the value originally found at mem. This is a forwarding function wrapper for the architecture-specific implementing function. Parameters: mem  [IN] A pointer to an atomic word in memory which will have its value exchanged with value. value  [IN] An atomic word that will be written at mem. Returns: the sum of value and the value originally held at mem. Here is the call graph for this function:

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