std::pmr::pool_options

struct pool_options;

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(since C++17)

std::size_t max_blocks_per_chunk;

std::size_t max_blocks_per_chunk;

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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.

std::size_t max_blocks_per_chunk;

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std::size_t largest_required_pool_block;

std::size_t largest_required_pool_block;

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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.

std::size_t largest_required_pool_block;

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unsynchronized_pool_resource (C++17)

a thread-unsafe std::pmr::memory_resource for managing allocations in pools of different block sizes (class)