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89 lines
3.7 KiB
Plaintext
89 lines
3.7 KiB
Plaintext
Reference Counted Message Pool
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Allocates etl::ireference_counted_message types that are used by etl::shared_message.
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Uses a supplied memory_block allocator derived from etl::imemory_block_allocator
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ireference_counted_message_pool.h
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Defines the following class.
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etl::ireference_counted_message_pool
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reference_counted_message_pool.h
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Defines the following classes.
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etl::reference_counted_message_pool_exception
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etl::reference_counted_message_pool_allocation_failure
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etl::reference_counted_message_pool_release_failure
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etl::reference_counted_message_pool<typename TCounter>
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____________________________________________________________________________________________________
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ireference_counted_message_pool
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etl::ireference_counted_message_pool
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The interface for reference counted message pools.
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virtual ~ireference_counted_message_pool() {}
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virtual void release(const etl::ipool_message& msg) = 0;
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Virtual lock() and unlock() functions are defined. The default action is to do nothing.
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A derived class may override these functions to provide a thread or interrupt safe pool.
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virtual void lock()
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virtual void unlock()
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____________________________________________________________________________________________________
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reference_counted_message_pool
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etl::reference_counted_message_pool<TCounter>
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The concrete reference counted message pool.
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reference_counted_message_pool(imemory_block_allocator& memory_block_allocator)
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Constructs the pool and assigns the memory block allocator to it.
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____________________________________________________________________________________________________
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template <typename TMessage>
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etl::reference_counted_message<TMessage, TCounter>* allocate()
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Returns a pointer to a pool message that holds a TMessage.
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The message is default constructed.
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ETL_ASSERT if one cannot be allocated and returns ETL_NULLPTR .
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____________________________________________________________________________________________________
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template <typename TMessage>
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etl::reference_counted_message<TMessage, TCounter>* allocate(const TMessage& message)
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Returns a pointer to a pool message that holds a TMessage.
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ETL_ASSERT if one cannot be allocated and returns ETL_NULLPTR .
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____________________________________________________________________________________________________
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void release(const etl::ireference_counted_message& rcmessage)
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Returns the reference counted to a pool message that holds a TMessage.
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ETL_ASSERT if it cannot be released. Reasons can include the message not belonging to the pool.
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____________________________________________________________________________________________________
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pool_message_parameters
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C++03
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The C++03 version defines the largest size and alignment of up to 8 types at a time.
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template <typename TMessage1, typename TMessage2 = TMessage1,
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typename TMessage3 = TMessage1, typename TMessage4 = TMessage1,
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typename TMessage5 = TMessage1, typename TMessage6 = TMessage1,
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typename TMessage7 = TMessage1, typename TMessage8 = TMessage1>
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struct pool_message_parameters
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static const size_t max_size;
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The maximum size.
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static const size_t max_alignment;
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The maximum alignment.
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C++11 or above
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The C++11 version defines the largest size and alignment of a set of message types.
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template <typename TMessage1, typename... TMessages>
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struct pool_message_parameters
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static constexpr size_t max_size
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The maximum size.
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static constexpr size_t max_alignment;
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The maximum alignment.
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____________________________________________________________________________________________________
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For C++11, with atomic support.
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template <typename TObject>
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using atomic_counted_message_pool = etl::reference_counted_message_pool<etl::atomic_int32_t>;
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Defines an alias to a reference counted message pool that uses an atomic.
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