folly::FallbackGetcpu< ThreadId > Struct Template Reference

#include <CacheLocality.h>

Static Public Member Functions
static int	getcpu (unsigned *cpu, unsigned *node, void *)

Detailed Description

template<typename ThreadId>
struct folly::FallbackGetcpu< ThreadId >

A class that lazily binds a unique (for each implementation of Atom) identifier to a thread. This is a fallback mechanism for the access spreader if __vdso_getcpu can't be loaded

Definition at line 171 of file CacheLocality.h.

Member Function Documentation

template<typename ThreadId>

static int folly::FallbackGetcpu< ThreadId >::getcpu ( unsigned *  cpu, unsigned *  node, void *    )

inlinestatic

Fills the thread id into the cpu and node out params (if they are non-null). This method is intended to act like getcpu when a fast-enough form of getcpu isn't available or isn't desired

Definition at line 175 of file CacheLocality.h.

References folly::pushmi::operators::get.

Referenced by folly::AccessSpreader< Atom >::pickGetcpuFunc(), and TEST().

                                                            {
    auto id = ThreadId::get();
    if (cpu) {
      *cpu = id;
    }
    if (node) {
      *node = id;
    }
    return 0;
  }

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

• proxygen/folly/folly/concurrency/CacheLocality.h