Defined in header <memory_resource> | ||
|---|---|---|
struct pool_options; | (since C++17) |
std::pmr::pool_options is a set of constructor options for pool resources including std::pmr::synchronized_pool_resource and std::pmr::unsynchronized_pool_resource.
| Member | Meaning | |||
|---|---|---|---|---|
| The maximum number of blocks that will be allocated at once from the upstream std::pmr::memory_resource to replenish the pool. If the value of max_blocks_per_chunk is zero or is greater than an implementation-defined limit, that limit is used instead. The implementation may choose to use a smaller value than is specified in this field and may use different values for different pools. |
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| The largest allocation size that is required to be fulfilled using the pooling mechanism. Attempts to allocate a single block larger than this threshold will be allocated directly from the upstream std::pmr::memory_resource. If largest_required_pool_block is zero or is greater than an implementation-defined limit, that limit is used instead. The implementation may choose a pass-through threshold larger than specified in this field. |
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(C++17) | a thread-safe std::pmr::memory_resource for managing allocations in pools of different block sizes (class) |
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(C++17) | a thread-unsafe std::pmr::memory_resource for managing allocations in pools of different block sizes (class) |
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