Goal for next week
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4 changed files with 51 additions and 17 deletions
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@ -0,0 +1,15 @@
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#pragma once
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#include <assert.h>
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#include <iostream>
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#include <stdlib.h>
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#include <vector>
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#include "include/allocator.hpp"
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namespace GC {
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}
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@ -23,20 +23,27 @@ public:
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}
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~Heap() {
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for (auto *alloc : h_allocs)
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delete alloc;
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}
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size_t getHeapSize() {
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return heap_size;
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return size;
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}
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// helt onödig
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Allocator *getAllocator(size_t size) {
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for (auto *alloc : h_allocs) {
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if (alloc->getSize() >= size)
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return alloc;
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}
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std::cout << "Object too big" << std::endl;
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assert(false);
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// std::cout << "Object too big" << std::endl;
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assert(false && "TODO: Object too big");
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}
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void *alloc(size_t size) {
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auto allocator = getAllocator(size);
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return allocator->alloc();
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}
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void collect();
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@ -55,7 +62,7 @@ private:
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}
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char _heap[HEAP_SIZE] = {0};
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size_t heap_size = 0;
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size_t size = 0;
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std::vector<Allocator *> h_allocs;
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};
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@ -4,13 +4,22 @@
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class HeapObj {
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public:
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HeapObj(size_t size_) {
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HeapObj(void *start_, size_t size_) {
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start = start_;
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size = size_;
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}
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~HeapObj() { }
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void *getAddr() { return start; }
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size_t getSize() { return size; }
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bool isMarked() { return marked; }
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void mark() { marked = true; }
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private:
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void *start = 0;
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size_t size { 0 };
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bool marked { false };
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};
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@ -1,5 +1,14 @@
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# Garbage collection
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## Project
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Goal for next week (17/2):
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- Functioning garbage collector
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- Test it with valgrind
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TODO:
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- Merge to main branch
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## Algorithm
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Potential algorithms:
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@ -20,15 +29,9 @@ Potential algorithms:
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- Holds all memory
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- Resizeable array?
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- Singleton instance
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- exposes alloc
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- Allocator class
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- Allocates chunks of memory
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- keeps track of chunks that are available and their sizes
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- Several instances of allocator class with different sizes?
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- HeapObj class
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- parent of all heap objects
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- contains metadata
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- size
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- location
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- marked bit
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- Heap chunks
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- size
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- addr
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- marked bit
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