From 01769e17e318deab2b9ffc2fc49464e50f865c15 Mon Sep 17 00:00:00 2001
From: KunoiSayami <i@leanhe.dev>
Date: Fri, 5 Nov 2021 16:34:40 +0800
Subject: chore: Refactor struct

Signed-off-by: KunoiSayami <i@leanhe.dev>
---
 arena.cu | 68 ----------------------------------------------------------------
 1 file changed, 68 deletions(-)
 delete mode 100644 arena.cu

(limited to 'arena.cu')

diff --git a/arena.cu b/arena.cu
deleted file mode 100644
index 1bb0f91..0000000
--- a/arena.cu
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// Created by user on 20/10/2021.
-//
-
-#include "arena.cuh"
-
-namespace cleveldb {
-
-static const int kBlockSize = 4096;
-Arena::Arena()
-	: alloc_ptr_(nullptr), alloc_bytes_remaining_(0), memory_usage_(0) {}
-
-Arena::~Arena() {
-	for (size_t i = 0; i < blocks_.size(); i++) {
-		//delete[] blocks_[i];
-		cudaFree(blocks_[i]);
-	}
-}
-
-char* Arena::AllocateFallback(size_t bytes) {
-	if (bytes > kBlockSize / 4) {
-		// Object is more than a quarter of our block size.  Allocate it separately
-		// to avoid wasting too much space in leftover bytes.
-		char* result = AllocateNewBlock(bytes);
-		return result;
-	}
-
-	// We waste the remaining space in the current block.
-	alloc_ptr_ = AllocateNewBlock(kBlockSize);
-	alloc_bytes_remaining_ = kBlockSize;
-
-	char* result = alloc_ptr_;
-	alloc_ptr_ += bytes;
-	alloc_bytes_remaining_ -= bytes;
-	return result;
-}
-
-char* Arena::AllocateAligned(size_t bytes) {
-	const int align = (sizeof(void*) > 8) ? sizeof(void*) : 8;
-	static_assert((align & (align - 1)) == 0,
-				  "Pointer size should be a power of 2");
-	size_t current_mod = reinterpret_cast<uintptr_t>(alloc_ptr_) & (align - 1);
-	size_t slop = (current_mod == 0 ? 0 : align - current_mod);
-	size_t needed = bytes + slop;
-	char* result;
-	if (needed <= alloc_bytes_remaining_) {
-		result = alloc_ptr_ + slop;
-		alloc_ptr_ += needed;
-		alloc_bytes_remaining_ -= needed;
-	} else {
-		// AllocateFallback always returned aligned memory
-		result = AllocateFallback(bytes);
-	}
-	assert((reinterpret_cast<uintptr_t>(result) & (align - 1)) == 0);
-	return result;
-}
-
-char* Arena::AllocateNewBlock(size_t block_bytes) {
-	//char* result = new char[block_bytes];
-	char* result = nullptr;
-	cudaMallocManaged((void **)&result, sizeof(char) * block_bytes);
-	blocks_.push_back(result);
-	memory_usage_.fetch_add(block_bytes + sizeof(char*),
-							std::memory_order_relaxed);
-	return result;
-}
-
-}  // namespace cleveldb
\ No newline at end of file
-- 
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