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GemaCoreLib
The GeMA Core library
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GemaCoreLib
The GeMA Core library
|
A simple spin lock implementation based on a loop using test and set over an atomic int to change its value from 0 to 1. More...
#include <gmSpinLock.h>
Public Member Functions | |
| GmSpinLock () | |
| Constructor. | |
| void | lock () |
| Aquires the lock. | |
| bool | tryLock () |
| Try to lock. Returns true if the lock was aquired, false otherwise. | |
| void | unlock () |
| Releases the lock. | |
 Public Member Functions inherited from QAtomicInt | |
| QAtomicInt (int value) | |
| Public Member Functions inherited from QAtomicInteger | |
| QAtomicInteger (T value) | |
| QAtomicInteger (const QAtomicInteger< T > &other) | |
| QAtomicInteger< T > & | operator= (const QAtomicInteger< T > &other) |
| T | load () const const |
| T | loadRelaxed () const const |
| T | loadAcquire () const const |
| void | store (T newValue) |
| void | storeRelaxed (T newValue) |
| void | storeRelease (T newValue) |
| T | operator T () const const |
| QAtomicInteger< T > & | operator= (T) |
| bool | ref () |
| bool | deref () |
| bool | testAndSetRelaxed (T expectedValue, T newValue) |
| bool | testAndSetAcquire (T expectedValue, T newValue) |
| bool | testAndSetRelease (T expectedValue, T newValue) |
| bool | testAndSetOrdered (T expectedValue, T newValue) |
| T | fetchAndStoreRelaxed (T newValue) |
| T | fetchAndStoreAcquire (T newValue) |
| T | fetchAndStoreRelease (T newValue) |
| T | fetchAndStoreOrdered (T newValue) |
| T | fetchAndAddRelaxed (T valueToAdd) |
| T | fetchAndAddAcquire (T valueToAdd) |
| T | fetchAndAddRelease (T valueToAdd) |
| T | fetchAndAddOrdered (T valueToAdd) |
| T | fetchAndSubRelaxed (T valueToSub) |
| T | fetchAndSubAcquire (T valueToSub) |
| T | fetchAndSubRelease (T valueToSub) |
| T | fetchAndSubOrdered (T valueToSub) |
| T | fetchAndOrRelaxed (T valueToOr) |
| T | fetchAndOrAcquire (T valueToOr) |
| T | fetchAndOrRelease (T valueToOr) |
| T | fetchAndOrOrdered (T valueToOr) |
| T | fetchAndAndRelaxed (T valueToAnd) |
| T | fetchAndAndAcquire (T valueToAnd) |
| T | fetchAndAndRelease (T valueToAnd) |
| T | fetchAndAndOrdered (T valueToAnd) |
| T | fetchAndXorRelaxed (T valueToXor) |
| T | fetchAndXorAcquire (T valueToXor) |
| T | fetchAndXorRelease (T valueToXor) |
| T | fetchAndXorOrdered (T valueToXor) |
| T | operator++ () |
| T | operator++ (int) |
| T | operator-- () |
| T | operator-- (int) |
| T | operator+= (T value) |
| T | operator-= (T value) |
| T | operator|= (T value) |
| T | operator&= (T value) |
| T | operator^= (T value) |
| Q_ATOMIC_INTnn_IS_SUPPORTED Q_ATOMIC_INTnn_IS_SUPPORTED | |
| Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_ALWAYS_NATIVE Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_ALWAYS_NATIVE | |
| Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE | |
| Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_NOT_NATIVE Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_NOT_NATIVE | |
| Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_WAIT_FREE Q_ATOMIC_INTnn_REFERENCE_COUNTING_IS_WAIT_FREE | |
| Q_ATOMIC_INTnn_TEST_AND_SET_IS_ALWAYS_NATIVE Q_ATOMIC_INTnn_TEST_AND_SET_IS_ALWAYS_NATIVE | |
| Q_ATOMIC_INTnn_TEST_AND_SET_IS_SOMETIMES_NATIVE Q_ATOMIC_INTnn_TEST_AND_SET_IS_SOMETIMES_NATIVE | |
| Q_ATOMIC_INTnn_TEST_AND_SET_IS_NOT_NATIVE Q_ATOMIC_INTnn_TEST_AND_SET_IS_NOT_NATIVE | |
| Q_ATOMIC_INTnn_TEST_AND_SET_IS_WAIT_FREE Q_ATOMIC_INTnn_TEST_AND_SET_IS_WAIT_FREE | |
| Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_ALWAYS_NATIVE Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_ALWAYS_NATIVE | |
| Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_SOMETIMES_NATIVE Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_SOMETIMES_NATIVE | |
| Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_NOT_NATIVE Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_NOT_NATIVE | |
| Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_WAIT_FREE Q_ATOMIC_INTnn_FETCH_AND_STORE_IS_WAIT_FREE | |
| Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_ALWAYS_NATIVE Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_ALWAYS_NATIVE | |
| Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_SOMETIMES_NATIVE Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_SOMETIMES_NATIVE | |
| Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_NOT_NATIVE Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_NOT_NATIVE | |
| Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_WAIT_FREE Q_ATOMIC_INTnn_FETCH_AND_ADD_IS_WAIT_FREE | |
Additional Inherited Members | |
| Static Public Member Functions inherited from QAtomicInteger | |
| bool | isReferenceCountingNative () |
| bool | isReferenceCountingWaitFree () |
| bool | isTestAndSetNative () |
| bool | isTestAndSetWaitFree () |
| bool | isFetchAndStoreNative () |
| bool | isFetchAndStoreWaitFree () |
| bool | isFetchAndAddNative () |
| bool | isFetchAndAddWaitFree () |
A simple spin lock implementation based on a loop using test and set over an atomic int to change its value from 0 to 1.
TODO: See some ideas in https://geidav.wordpress.com/2016/03/23/test-and-set-spinlocks/ to improve the lock efficiency by, for example, emmitting a pause instruction in the loop.
1.12.0