Counters Class Reference

Public Member Functions
	Counters (size_t numCounters)
void	increment (int64_t obj_id)
int64_t	getValue (int64_t obj_id)
string	toString ()

Private Attributes
AtomicHashMap< int64_t, int64_t >	ahm

Detailed Description

Definition at line 266 of file AtomicHashMapTest.cpp.

Constructor & Destructor Documentation

Counters::Counters ( size_t  numCounters )

inlineexplicit

Definition at line 274 of file AtomicHashMapTest.cpp.

: ahm(numCounters) {}

Member Function Documentation

int64_t Counters::getValue ( int64_t  obj_id )

inline

Definition at line 284 of file AtomicHashMapTest.cpp.

References folly::AtomicHashMap< KeyT, ValueT, HashFcn, EqualFcn, Allocator, ProbeFcn, KeyConvertFcn >::end(), and folly::AtomicHashMap< KeyT, ValueT, HashFcn, EqualFcn, Allocator, ProbeFcn, KeyConvertFcn >::find().

Referenced by TEST().

                                   {
    auto ret = ahm.find(obj_id);
    return ret != ahm.end() ? ret->second : 0;
  }

void Counters::increment ( int64_t  obj_id )

inline

Definition at line 276 of file AtomicHashMapTest.cpp.

References folly::AtomicHashMap< KeyT, ValueT, HashFcn, EqualFcn, Allocator, ProbeFcn, KeyConvertFcn >::insert().

Referenced by TEST().

                                 {
    auto ret = ahm.insert(std::make_pair(obj_id, 1));
    if (!ret.second) {
      // obj_id already exists, increment count
      __sync_fetch_and_add(&ret.first->second, 1);
    }
  }

string Counters::toString ( )

inline

Definition at line 290 of file AtomicHashMapTest.cpp.

References folly::AtomicHashMap< KeyT, ValueT, HashFcn, EqualFcn, Allocator, ProbeFcn, KeyConvertFcn >::size().

Referenced by TEST().

                    {
    string ret = "{\n";
    ret.reserve(ahm.size() * 32);
    for (const auto& e : ahm) {
      ret += folly::to<string>("  [", e.first, ":", e.second, "]\n");
    }
    ret += "}\n";
    return ret;
  }

Member Data Documentation

AtomicHashMap<int64_t, int64_t> Counters::ahm

private

Definition at line 271 of file AtomicHashMapTest.cpp.

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

• proxygen/folly/folly/test/AtomicHashMapTest.cpp