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**
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** Alternatively, this file may be used under the terms of the GNU
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#ifndef QATOMIC_ALPHA_H
#define QATOMIC_ALPHA_H
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isReferenceCountingNative()
{ return true; }
inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
{ return false; }
#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isTestAndSetNative()
{ return true; }
inline bool QBasicAtomicInt::isTestAndSetWaitFree()
{ return false; }
#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isFetchAndStoreNative()
{ return true; }
inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
{ return false; }
#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
inline bool QBasicAtomicInt::isFetchAndAddNative()
{ return true; }
inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
{ return false; }
#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
{ return true; }
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
{ return false; }
#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
{ return true; }
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
{ return false; }
#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
{ return true; }
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
{ return false; }
#if defined(Q_CC_GNU)
inline bool QBasicAtomicInt::ref()
{
register int old, tmp;
asm volatile("1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"addl %0,1,%1\n" /* tmp=old+1; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
:
: "memory");
return old != -1;
}
inline bool QBasicAtomicInt::deref()
{
register int old, tmp;
asm volatile("1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"subl %0,1,%1\n" /* tmp=old-1; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
:
: "memory");
return old != 1;
}
inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
{
register int ret;
asm volatile("1:\n"
"ldl_l %0,%1\n" /* ret=*ptr; */
"cmpeq %0,%2,%0\n"/* if (ret==expected) ret=0; else ret=1; */
"beq %0,3f\n" /* if (ret==0) goto 3; */
"mov %3,%0\n" /* ret=newval; */
"stl_c %0,%1\n" /* if ((*ptr=ret)!=ret) ret=0; else ret=1; */
"beq %0,2f\n" /* if (ret==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (ret), "+m" (_q_value)
: "r" (expectedValue), "r" (newValue)
: "memory");
return ret != 0;
}
inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
{
register int ret;
asm volatile("1:\n"
"ldl_l %0,%1\n" /* ret=*ptr; */
"cmpeq %0,%2,%0\n"/* if (ret==expected) ret=0; else ret=1; */
"beq %0,3f\n" /* if (ret==0) goto 3; */
"mov %3,%0\n" /* ret=newval; */
"stl_c %0,%1\n" /* if ((*ptr=ret)!=ret) ret=0; else ret=1; */
"beq %0,2f\n" /* if (ret==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
"mb\n"
: "=&r" (ret), "+m" (_q_value)
: "r" (expectedValue), "r" (newValue)
: "memory");
return ret != 0;
}
inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
{
register int ret;
asm volatile("mb\n"
"1:\n"
"ldl_l %0,%1\n" /* ret=*ptr; */
"cmpeq %0,%2,%0\n"/* if (ret==expected) ret=0; else ret=1; */
"beq %0,3f\n" /* if (ret==0) goto 3; */
"mov %3,%0\n" /* ret=newval; */
"stl_c %0,%1\n" /* if ((*ptr=ret)!=ret) ret=0; else ret=1; */
"beq %0,2f\n" /* if (ret==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (ret), "+m" (_q_value)
: "r" (expectedValue), "r" (newValue)
: "memory");
return ret != 0;
}
inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
{
register int old, tmp;
asm volatile("1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"mov %3,%1\n" /* tmp=newval; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m" (_q_value)
: "r" (newValue)
: "memory");
return old;
}
inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
{
register int old, tmp;
asm volatile("1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"mov %3,%1\n" /* tmp=newval; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
"mb\n"
: "=&r" (old), "=&r" (tmp), "+m" (_q_value)
: "r" (newValue)
: "memory");
return old;
}
inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
{
register int old, tmp;
asm volatile("mb\n"
"1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"mov %3,%1\n" /* tmp=newval; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m" (_q_value)
: "r" (newValue)
: "memory");
return old;
}
inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
{
register int old, tmp;
asm volatile("1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"addl %0,%3,%1\n"/* tmp=old+value; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
: "r" (valueToAdd)
: "memory");
return old;
}
inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
{
register int old, tmp;
asm volatile("1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"addl %0,%3,%1\n"/* tmp=old+value; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
"mb\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
: "r" (valueToAdd)
: "memory");
return old;
}
inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
{
register int old, tmp;
asm volatile("mb\n"
"1:\n"
"ldl_l %0,%2\n" /* old=*ptr; */
"addl %0,%3,%1\n"/* tmp=old+value; */
"stl_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
: "r" (valueToAdd)
: "memory");
return old;
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
{
register void *ret;
asm volatile("1:\n"
"ldq_l %0,%1\n" /* ret=*ptr; */
"cmpeq %0,%2,%0\n"/* if (ret==expected) tmp=0; else tmp=1; */
"beq %0,3f\n" /* if (tmp==0) goto 3; */
"mov %3,%0\n" /* tmp=newval; */
"stq_c %0,%1\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %0,2f\n" /* if (ret==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (ret), "+m" (_q_value)
: "r" (expectedValue), "r" (newValue)
: "memory");
return ret != 0;
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
{
register void *ret;
asm volatile("1:\n"
"ldq_l %0,%1\n" /* ret=*ptr; */
"cmpeq %0,%2,%0\n"/* if (ret==expected) tmp=0; else tmp=1; */
"beq %0,3f\n" /* if (tmp==0) goto 3; */
"mov %3,%0\n" /* tmp=newval; */
"stq_c %0,%1\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %0,2f\n" /* if (ret==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
"mb\n"
: "=&r" (ret), "+m" (_q_value)
: "r" (expectedValue), "r" (newValue)
: "memory");
return ret != 0;
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
{
register void *ret;
asm volatile("mb\n"
"1:\n"
"ldq_l %0,%1\n" /* ret=*ptr; */
"cmpeq %0,%2,%0\n"/* if (ret==expected) tmp=0; else tmp=1; */
"beq %0,3f\n" /* if (tmp==0) goto 3; */
"mov %3,%0\n" /* tmp=newval; */
"stq_c %0,%1\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %0,2f\n" /* if (ret==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (ret), "+m" (_q_value)
: "r" (expectedValue), "r" (newValue)
: "memory");
return ret != 0;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
{
register T *old, *tmp;
asm volatile("1:\n"
"ldq_l %0,%2\n" /* old=*ptr; */
"mov %3,%1\n" /* tmp=newval; */
"stq_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m" (_q_value)
: "r" (newValue)
: "memory");
return old;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
{
register T *old, *tmp;
asm volatile("1:\n"
"ldq_l %0,%2\n" /* old=*ptr; */
"mov %3,%1\n" /* tmp=newval; */
"stq_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
"mb\n"
: "=&r" (old), "=&r" (tmp), "+m" (_q_value)
: "r" (newValue)
: "memory");
return old;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
{
register T *old, *tmp;
asm volatile("mb\n"
"1:\n"
"ldq_l %0,%2\n" /* old=*ptr; */
"mov %3,%1\n" /* tmp=newval; */
"stq_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp==0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m" (_q_value)
: "r" (newValue)
: "memory");
return old;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
{
register T *old, *tmp;
asm volatile("1:\n"
"ldq_l %0,%2\n" /* old=*ptr; */
"addq %0,%3,%1\n"/* tmp=old+value; */
"stq_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
: "r" (valueToAdd)
: "memory");
return reinterpret_cast<T *>(old);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
{
register T *old, *tmp;
asm volatile("1:\n"
"ldq_l %0,%2\n" /* old=*ptr; */
"addq %0,%3,%1\n"/* tmp=old+value; */
"stq_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
"mb\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
: "r" (valueToAdd)
: "memory");
return reinterpret_cast<T *>(old);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
{
register T *old, *tmp;
asm volatile("mb\n"
"1:\n"
"ldq_l %0,%2\n" /* old=*ptr; */
"addq %0,%3,%1\n"/* tmp=old+value; */
"stq_c %1,%2\n" /* if ((*ptr=tmp)!=tmp) tmp=0; else tmp=1; */
"beq %1,2f\n" /* if (tmp == 0) goto 2; */
"br 3f\n" /* goto 3; */
"2: br 1b\n" /* goto 1; */
"3:\n"
: "=&r" (old), "=&r" (tmp), "+m"(_q_value)
: "r" (valueToAdd)
: "memory");
return reinterpret_cast<T *>(old);
}
#else // !Q_CC_GNU
extern "C" {
Q_CORE_EXPORT int q_atomic_test_and_set_int(volatile int *ptr, int expected, int newval);
Q_CORE_EXPORT int q_atomic_test_and_set_acquire_int(volatile int *ptr, int expected, int newval);
Q_CORE_EXPORT int q_atomic_test_and_set_release_int(volatile int *ptr, int expected, int newval);
Q_CORE_EXPORT int q_atomic_test_and_set_ptr(volatile void *ptr, void *expected, void *newval);
Q_CORE_EXPORT int q_atomic_increment(volatile int *ptr);
Q_CORE_EXPORT int q_atomic_decrement(volatile int *ptr);
Q_CORE_EXPORT int q_atomic_set_int(volatile int *ptr, int newval);
Q_CORE_EXPORT void *q_atomic_set_ptr(volatile void *ptr, void *newval);
Q_CORE_EXPORT int q_atomic_fetch_and_add_int(volatile int *ptr, int value);
Q_CORE_EXPORT int q_atomic_fetch_and_add_acquire_int(volatile int *ptr, int value);
Q_CORE_EXPORT int q_atomic_fetch_and_add_release_int(volatile int *ptr, int value);
} // extern "C"
inline bool QBasicAtomicInt::ref()
{
return q_atomic_increment(&_q_value) != 0;
}
inline bool QBasicAtomicInt::deref()
{
return q_atomic_decrement(&_q_value) != 0;
}
inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
{
return q_atomic_test_and_set_int(&_q_value, expectedValue, newValue) != 0;
}
inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
{
return q_atomic_test_and_set_acquire_int(&_q_value, expectedValue, newValue) != 0;
}
inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
{
return q_atomic_test_and_set_release_int(&_q_value, expectedValue, newValue) != 0;
}
inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
{
return q_atomic_set_int(&_q_value, newValue);
}
inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
{
return q_atomic_fetch_and_store_acquire_int(&_q_value, newValue);
}
inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
{
return q_atomic_fetch_and_store_release_int(&_q_value, newValue);
}
inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
{
return q_atomic_fetch_and_add_int(&_q_value, valueToAdd);
}
inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
{
return q_atomic_fetch_and_add_acquire_int(&_q_value, valueToAdd);
}
inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
{
return q_atomic_fetch_and_add_release_int(&_q_value, valueToAdd);
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
{
return q_atomic_test_and_set_ptr(&_q_value, expectedValue, newValue) != 0;
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
{
return q_atomic_test_and_set_acquire_ptr(&_q_value, expectedValue, newValue) != 0;
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
{
return q_atomic_test_and_set_release_ptr(&_q_value, expectedValue, newValue) != 0;
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
{
return reinterpret_cast<T *>(q_atomic_set_ptr(&_q_value, newValue));
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
{
return reinterpret_cast<T *>(q_atomic_fetch_and_store_acquire_ptr(&_q_value, newValue));
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
{
return reinterpret_cast<T *>(q_atomic_fetch_and_store_release_ptr(&_q_value, newValue));
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
{
return reinterpret_cast<T *>(q_atomic_fetch_and_add_ptr(&_q_value, newValue));
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
{
return reinterpret_cast<T *>(q_atomic_fetch_and_add_acquire_ptr(&_q_value, newValue));
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
{
return reinterpret_cast<T *>(q_atomic_fetch_and_add_release_ptr(&_q_value, newValue));
}
#endif // Q_CC_GNU
inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
{
return testAndSetAcquire(expectedValue, newValue);
}
inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
{
return fetchAndStoreAcquire(newValue);
}
inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
{
return fetchAndAddAcquire(valueToAdd);
}
template <typename T>
Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
{
return testAndSetAcquire(expectedValue, newValue);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
{
return fetchAndStoreAcquire(newValue);
}
template <typename T>
Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
{
return fetchAndAddAcquire(valueToAdd);
}
QT_END_NAMESPACE
QT_END_HEADER
#endif // QATOMIC_ALPHA_H