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Add C++11 support to atomic_counter_t.

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Thomas Köppe 2015-07-01 09:55:25 +01:00
parent 010f93b34c
commit 26e3873f70
1 changed files with 16 additions and 0 deletions
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16
src/atomic_counter.hpp
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@ -37,6 +37,8 @@
#define ZMQ_ATOMIC_COUNTER_MUTEX
#elif defined ZMQ_HAVE_ATOMIC_INTRINSICS
#define ZMQ_ATOMIC_INTRINSIC
#elif (defined ZMQ_CXX11 && defined __cplusplus && __cplusplus >= 201103L)
#define ZMQ_ATOMIC_COUNTER_CXX11
#elif (defined __i386__ || defined __x86_64__) && defined __GNUC__
#define ZMQ_ATOMIC_COUNTER_X86
#elif defined __ARM_ARCH_7A__ && defined __GNUC__
@ -53,6 +55,8 @@
#if defined ZMQ_ATOMIC_COUNTER_MUTEX
#include "mutex.hpp"
#elif defined ZMQ_ATOMIC_COUNTER_CXX11
#include <atomic>
#elif defined ZMQ_ATOMIC_COUNTER_WINDOWS
#include "windows.hpp"
#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
@ -97,6 +101,8 @@ namespace zmq
old_value = InterlockedExchangeAdd ((LONG*) &value, increment_);
#elif defined ZMQ_ATOMIC_INTRINSIC
old_value = __atomic_fetch_add(&value, increment_, __ATOMIC_ACQ_REL);
#elif defined ZMQ_ATOMIC_COUNTER_CXX11
old_value = value.fetch_add(increment_, std::memory_order_acq_rel);
#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
integer_t new_value = atomic_add_32_nv (&value, increment_);
old_value = new_value - increment_;
@ -142,6 +148,9 @@ namespace zmq
#elif defined ZMQ_ATOMIC_INTRINSIC
integer_t nv = __atomic_sub_fetch(&value, decrement, __ATOMIC_ACQ_REL);
return nv != 0;
#elif defined ZMQ_ATOMIC_COUNTER_CXX11
integer_t old = value.fetch_sub(decrement, std::memory_order_acq_rel);
return old - decrement != 0;
#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
int32_t delta = - ((int32_t) decrement);
integer_t nv = atomic_add_32_nv (&value, delta);
@ -190,13 +199,20 @@ namespace zmq
private:
#if defined ZMQ_ATOMIC_COUNTER_CXX11
std::atomic<integer_t> value;
#else
volatile integer_t value;
#endif
#if defined ZMQ_ATOMIC_COUNTER_MUTEX
mutex_t sync;
#endif
#if ! defined ZMQ_ATOMIC_COUNTER_CXX11
atomic_counter_t (const atomic_counter_t&);
const atomic_counter_t& operator = (const atomic_counter_t&);
#endif
};
}