impala::AtomicUtil Class Reference

#include <atomic.h>

Collaboration diagram for impala::AtomicUtil:

Static Public Member Functions
static void	CpuWait ()
static void	MemoryBarrier ()

Detailed Description

Definition at line 24 of file atomic.h.

Member Function Documentation

static void impala::AtomicUtil::CpuWait ( )

inlinestatic

Issues instruction to have the CPU wait, this is less busy (bus traffic etc) than just spinning. For example: while (1); should be: while (1) CpuWait();

Definition at line 32 of file atomic.h.

Referenced by impala::SpinLock::SlowAcquire().

static void impala::AtomicUtil::MemoryBarrier ( )

inlinestatic

Definition at line 36 of file atomic.h.

Referenced by impala::HdfsScanNode::ScannerThread().

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The documentation for this class was generated from the following file:

• be/src/common/atomic.h