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-rw-r--r--src/environment.h6
-rw-r--r--src/threading/atomic.h139
-rw-r--r--src/threading/thread.h7
-rw-r--r--src/unittest/test_threading.cpp8
4 files changed, 11 insertions, 149 deletions
diff --git a/src/environment.h b/src/environment.h
index 5a40ff31a..ff3942599 100644
--- a/src/environment.h
+++ b/src/environment.h
@@ -33,11 +33,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include <list>
#include <queue>
#include <map>
+#include <atomic>
#include "irr_v3d.h"
#include "activeobject.h"
#include "util/numeric.h"
#include "threading/mutex.h"
-#include "threading/atomic.h"
#include "network/networkprotocol.h" // for AccessDeniedCode
class IGameDef;
@@ -81,7 +81,7 @@ public:
IGameDef *getGameDef() { return m_gamedef; }
protected:
- GenericAtomic<float> m_time_of_day_speed;
+ std::atomic<float> m_time_of_day_speed;
/*
* Below: values managed by m_time_lock
@@ -98,7 +98,7 @@ protected:
u32 m_day_night_ratio_override;
// Days from the server start, accounts for time shift
// in game (e.g. /time or bed usage)
- Atomic<u32> m_day_count;
+ std::atomic<u32> m_day_count;
/*
* Above: values managed by m_time_lock
*/
diff --git a/src/threading/atomic.h b/src/threading/atomic.h
deleted file mode 100644
index c9a454f20..000000000
--- a/src/threading/atomic.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
-Minetest
-Copyright (C) 2015 ShadowNinja <shadowninja@minetest.net>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef THREADING_ATOMIC_H
-#define THREADING_ATOMIC_H
-
-
-#if __cplusplus >= 201103L
- #include <atomic>
- template<typename T> using Atomic = std::atomic<T>;
- template<typename T> using GenericAtomic = std::atomic<T>;
-#else
-
-#define GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#define CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
-#if GCC_VERSION >= 407 || CLANG_VERSION >= 302
- #define ATOMIC_LOAD_GENERIC(T, v) do { \
- T _val; \
- __atomic_load(&(v), &(_val), __ATOMIC_SEQ_CST); \
- return _val; \
- } while(0)
- #define ATOMIC_LOAD(T, v) return __atomic_load_n (&(v), __ATOMIC_SEQ_CST)
- #define ATOMIC_STORE(T, v, x) __atomic_store (&(v), &(x), __ATOMIC_SEQ_CST); return x
- #define ATOMIC_EXCHANGE(T, v, x) return __atomic_exchange (&(v), &(x), __ATOMIC_SEQ_CST)
- #define ATOMIC_ADD_EQ(T, v, x) return __atomic_add_fetch (&(v), (x), __ATOMIC_SEQ_CST)
- #define ATOMIC_SUB_EQ(T, v, x) return __atomic_sub_fetch (&(v), (x), __ATOMIC_SEQ_CST)
- #define ATOMIC_POST_INC(T, v) return __atomic_fetch_add (&(v), 1, __ATOMIC_SEQ_CST)
- #define ATOMIC_POST_DEC(T, v) return __atomic_fetch_sub (&(v), 1, __ATOMIC_SEQ_CST)
- #define ATOMIC_CAS(T, v, e, d) return __atomic_compare_exchange(&(v), &(e), &(d), \
- false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
-#else
- #define ATOMIC_USE_LOCK
- #include "threading/mutex.h"
-
- #define ATOMIC_LOCK_OP(T, op) do { \
- m_mutex.lock(); \
- T _val = (op); \
- m_mutex.unlock(); \
- return _val; \
- } while (0)
- #define ATOMIC_LOCK_CAS(T, v, e, d) do { \
- m_mutex.lock(); \
- bool _eq = (v == e); \
- if (_eq) \
- v = d; \
- m_mutex.unlock(); \
- return _eq; \
- } while (0)
- #define ATOMIC_LOAD(T, v) ATOMIC_LOCK_OP(T, v)
- #define ATOMIC_LOAD_GENERIC(T, v) ATOMIC_LOAD(T, v)
- #define ATOMIC_STORE(T, v, x) ATOMIC_LOCK_OP(T, v = x)
- #define ATOMIC_EXCHANGE(T, v, x) do { \
- m_mutex.lock(); \
- T _val = v; \
- v = x; \
- m_mutex.unlock(); \
- return _val; \
- } while (0)
- #if GCC_VERSION >= 401
- #define ATOMIC_ADD_EQ(T, v, x) return __sync_add_and_fetch(&(v), (x))
- #define ATOMIC_SUB_EQ(T, v, x) return __sync_sub_and_fetch(&(v), (x))
- #define ATOMIC_POST_INC(T, v) return __sync_fetch_and_add(&(v), 1)
- #define ATOMIC_POST_DEC(T, v) return __sync_fetch_and_sub(&(v), 1)
- #define ATOMIC_CAS(T, v, e, d) return __sync_bool_compare_and_swap(&(v), &(e), (d))
- #else
- #define ATOMIC_ADD_EQ(T, v, x) ATOMIC_LOCK_OP(T, v += x)
- #define ATOMIC_SUB_EQ(T, v, x) ATOMIC_LOCK_OP(T, v -= x)
- #define ATOMIC_POST_INC(T, v) ATOMIC_LOCK_OP(T, v++)
- #define ATOMIC_POST_DEC(T, v) ATOMIC_LOCK_OP(T, v--)
- #define ATOMIC_CAS(T, v, e, d) ATOMIC_LOCK_CAS(T, v, e, d)
- #endif
-#endif
-
-// For usage with integral types.
-template<typename T>
-class Atomic {
-public:
- Atomic(const T &v = 0) : m_val(v) {}
-
- operator T () { ATOMIC_LOAD(T, m_val); }
-
- T exchange(T x) { ATOMIC_EXCHANGE(T, m_val, x); }
- bool compare_exchange_strong(T &expected, T desired) { ATOMIC_CAS(T, m_val, expected, desired); }
-
- T operator = (T x) { ATOMIC_STORE(T, m_val, x); }
- T operator += (T x) { ATOMIC_ADD_EQ(T, m_val, x); }
- T operator -= (T x) { ATOMIC_SUB_EQ(T, m_val, x); }
- T operator ++ () { return *this += 1; }
- T operator -- () { return *this -= 1; }
- T operator ++ (int) { ATOMIC_POST_INC(T, m_val); }
- T operator -- (int) { ATOMIC_POST_DEC(T, m_val); }
-private:
- T m_val;
-#ifdef ATOMIC_USE_LOCK
- Mutex m_mutex;
-#endif
-};
-
-// For usage with non-integral types like float for example.
-// Needed because the other operations aren't provided by gcc
-// for non-integral types:
-// https://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/_005f_005fatomic-Builtins.html
-template<typename T>
-class GenericAtomic {
-public:
- GenericAtomic(const T &v = 0) : m_val(v) {}
-
- operator T () { ATOMIC_LOAD_GENERIC(T, m_val); }
-
- T exchange(T x) { ATOMIC_EXCHANGE(T, m_val, x); }
- bool compare_exchange_strong(T &expected, T desired) { ATOMIC_CAS(T, m_val, expected, desired); }
-
- T operator = (T x) { ATOMIC_STORE(T, m_val, x); }
-private:
- T m_val;
-#ifdef ATOMIC_USE_LOCK
- Mutex m_mutex;
-#endif
-};
-
-#endif // C++11
-
-#endif
diff --git a/src/threading/thread.h b/src/threading/thread.h
index 4785d3e03..671a9be0b 100644
--- a/src/threading/thread.h
+++ b/src/threading/thread.h
@@ -27,11 +27,12 @@ DEALINGS IN THE SOFTWARE.
#define THREADING_THREAD_H
#include "util/basic_macros.h"
-#include "threading/atomic.h"
#include "threading/mutex.h"
#include "threads.h"
#include <string>
+#include <atomic>
+
#ifdef _AIX
#include <sys/thread.h> // for tid_t
#endif
@@ -150,8 +151,8 @@ protected:
private:
void *m_retval;
bool m_joinable;
- Atomic<bool> m_request_stop;
- Atomic<bool> m_running;
+ std::atomic<bool> m_request_stop;
+ std::atomic<bool> m_running;
Mutex m_mutex;
Mutex m_start_finished_mutex;
diff --git a/src/unittest/test_threading.cpp b/src/unittest/test_threading.cpp
index e1e1d3660..03d776539 100644
--- a/src/unittest/test_threading.cpp
+++ b/src/unittest/test_threading.cpp
@@ -19,7 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "test.h"
-#include "threading/atomic.h"
+#include <atomic>
#include "threading/semaphore.h"
#include "threading/thread.h"
@@ -137,7 +137,7 @@ void TestThreading::testThreadKill()
class AtomicTestThread : public Thread {
public:
- AtomicTestThread(Atomic<u32> &v, Semaphore &trigger) :
+ AtomicTestThread(std::atomic<u32> &v, Semaphore &trigger) :
Thread("AtomicTest"),
val(v),
trigger(trigger)
@@ -153,14 +153,14 @@ private:
return NULL;
}
- Atomic<u32> &val;
+ std::atomic<u32> &val;
Semaphore &trigger;
};
void TestThreading::testAtomicSemaphoreThread()
{
- Atomic<u32> val;
+ std::atomic<u32> val;
val = 0;
Semaphore trigger;
static const u8 num_threads = 4;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 00:00:37 +0000