w_defines.h File Reference

#include "shore-config.h"
#include "shore.def"
#include <cerrno>
#include <cstddef>
#include <cstdlib>
#include <climits>
#include <cstdint>
#include <unistd.h>
#include <sys/types.h>

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Classes
class	allocaN< N >
	constructs a blob of N bytes. More...

Functions
template<class T >
static T *	aligned_cast (char const *ptr)

Variables
const size_t	CACHELINE_SIZE = 64
	CPU Cache line size in bytes. More...

Function Documentation

aligned_cast()

template<class T >

static T* aligned_cast ( char const *  ptr )

inlinestatic

Variable Documentation

CACHELINE_SIZE

const size_t CACHELINE_SIZE = 64

CPU Cache line size in bytes.

Most modern CPU has 64 bytes cacheline. Some less popular CPU like Spark uses 128 bytes. This value is used for padding to keep lock objects in different cachelines. TODO: CMake script to automatically detect this and cmakedefine for it (JIRA ZERO-179).