Almost finished with 1st impl of GC

Co-authored-by: ValterMiari <ValterMiari@users.noreply.github.com>

src/GC/allocator.cpp

@@ -1,15 +0,0 @@
-#pragma once
-
-#include <assert.h>
-#include <iostream>
-#include <stdlib.h>
-#include <vector>
-
-#include "include/allocator.hpp"
-
-namespace GC {
-
-
-
-
-}

src/GC/heap.cpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <assert.h>
+#include <iostream>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <vector>
+
+#include "include/heap.hpp"
+
+namespace GC {
+
+  size_t Heap::getSize() {
+    return m_size;
+  }
+
+  void *Heap::alloc(size_t size) {
+    auto heap = Heap::the();
+    assert(heap.getSize() + size <= HEAP_SIZE);
+
+    return m_heap + m_size;
+  }
+
+  void Heap::collect() {
+    // TODO
+  }
+
+}

src/GC/include/allocator.hpp

@@ -1,36 +0,0 @@
-#pragma once
-
-#include <assert.h>
-#include <memory>
-#include <stdlib.h>
-
-#include "include/heap.hpp"
-
-namespace GC {
-
-class Allocator {
-public:
-    Allocator(size_t size) {
-        alloc_size = size;
-    }
-
-    ~Allocator() { }
-
-    size_t getSize() {
-        return alloc_size;
-    }
-
-    void *alloc() {
-        auto heap = Heap::the();
-
-        assert(heap.getHeapSize() + alloc_size <= HEAP_SIZE);
-
-    }
-
-private:
-    size_t alloc_size;
-
-
-};
-
-}

src/GC/include/heap.hpp

@@ -6,64 +6,37 @@
 #include <stdlib.h>
 #include <vector>
 
-#include "allocator.hpp"
-
 #define HEAP_SIZE   65536
 
 namespace GC {
 
-class Heap {
-public:
+  class Heap {
+  public:
 
+    // Singleton
     static Heap &the() {
-        if (s_instance)
-            return *s_instance;
-        s_instance = new Heap();
-        return *s_instance;
+      if (m_instance)
+	      return *m_instance;
+      m_instance = new Heap();
+      return *m_instance;
     }
 
-    ~Heap() {
-        for (auto *alloc : h_allocs)
-            delete alloc;
-    }
+    size_t getSize();
+    void *alloc(size_t size);
 
-    size_t getHeapSize() {
-        return size;
-    }
+  private:
 
-    // helt onödig
-    Allocator *getAllocator(size_t size) {
-        for (auto *alloc : h_allocs) {
-            if (alloc->getSize() >= size)
-                return alloc;
-        }
-        // std::cout << "Object too big" << std::endl;
-        assert(false && "TODO: Object too big");
-    }
-
-    void *alloc(size_t size) {
-        auto allocator = getAllocator(size);
-        return allocator->alloc();
+    Heap() {
+      m_heap = reinterpret_cast<char *>(malloc(HEAP_SIZE));
+      m_size = 0;
+      m_allocated_size = 0;
     }
 
     void collect();
-
-private:
-    inline static Heap *s_instance = nullptr;
-
-    Heap() {
-        h_allocs.push_back(new Allocator(16));
-        h_allocs.push_back(new Allocator(32));
-        h_allocs.push_back(new Allocator(64));
-        h_allocs.push_back(new Allocator(128));
-        h_allocs.push_back(new Allocator(256));
-        h_allocs.push_back(new Allocator(512));
-        h_allocs.push_back(new Allocator(1024));
-    }
-
-    char _heap[HEAP_SIZE] = {0};
-    size_t size = 0;
-    std::vector<Allocator *> h_allocs;
-};
-
+      
+    inline static Heap *m_instance = nullptr;
+    char *m_heap;
+    size_t m_size;
+    size_t m_allocated_size;
+  }
 }

src/GC/include/heap_obj.hpp

@@ -1,25 +0,0 @@
-#pragma once
-
-#include <cstdlib>
-
-class HeapObj {
-public:
-    HeapObj(void *start_, size_t size_) {
-        start = start_;
-        size = size_;
-    }
-
-    ~HeapObj() { }
-
-    void *getAddr() { return start; }
-
-    size_t getSize() { return size; }
-
-    bool isMarked() { return marked; }
-    void mark() { marked = true; }
-
-private:
-    void *start = 0;
-    size_t size { 0 };
-    bool marked { false };
-};