47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#pragma once
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#include "ncx_slab.h"
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class mempool {
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public:
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mempool(size_t pool_size = 1024000) {
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const auto space = (u_char*)malloc(pool_size);
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mem_pool_ = (ncx_slab_pool_t*)space;
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mem_pool_->addr = space;
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mem_pool_->min_shift = 3;
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mem_pool_->end = space + pool_size;
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ncx_slab_init(mem_pool_);
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}
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~mempool() {
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free(mem_pool_->addr);
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}
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[[nodiscard]] void* alloc(size_t size) const {
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return ncx_slab_alloc(mem_pool_, size);
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}
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template<typename T, typename ...Args>
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[[nodiscard]] T* alloc(Args&&... args) const {
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T* out = (T*)alloc(sizeof(T));
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new (out) T(std::forward<Args>(args)...);
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return out;
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}
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template<typename T>
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[[nodiscard]] T* alloc() const {
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T* out = (T*)alloc(sizeof(T));
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new (out) T();
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return out;
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}
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void free(void* p) const {
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ncx_slab_free(mem_pool_, p);
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}
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[[nodiscard]] ncx_slab_stat_t stat() const {
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ncx_slab_stat_t out;
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ncx_slab_stat(mem_pool_, &out);
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return out;
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}
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private:
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ncx_slab_pool_t* mem_pool_ = nullptr;
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};
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