Put a bit of order in the src directory, group and name things appropriately

src/platform/esp32/SimpleAllocator.cpp

@@ -0,0 +1,60 @@
+#include "SimpleAllocator.h"
+#include "assert.h"
+
+
+SimpleAllocator::SimpleAllocator() { reset(); }
+
+void *SimpleAllocator::alloc(size_t size)
+{
+    assert(nextFree + size <= sizeof(bytes));
+    void *res = &bytes[nextFree];
+    nextFree += size;
+    Serial.printf("Total simple allocs %u\n", nextFree);
+
+    return res;
+}
+
+void SimpleAllocator::reset() { nextFree = 0; }
+
+void *operator new(size_t size, SimpleAllocator &p)
+{
+    return p.alloc(size);
+}
+
+#if 0 
+// This was a dumb idea, turn off for now
+
+SimpleAllocator *activeAllocator;
+
+AllocatorScope::AllocatorScope(SimpleAllocator &a)
+{
+    assert(!activeAllocator);
+    activeAllocator = &a;
+}
+
+AllocatorScope::~AllocatorScope()
+{
+    assert(activeAllocator);
+    activeAllocator = NULL;
+}
+
+/// Global new/delete, uses a simple allocator if it is in scope
+
+void *operator new(size_t sz) throw(std::bad_alloc)
+{
+    void *mem = activeAllocator ? activeAllocator->alloc(sz) : malloc(sz);
+    if (mem)
+        return mem;
+    else
+        throw std::bad_alloc();
+}
+
+void operator delete(void *ptr) throw()
+{
+    if (activeAllocator)
+        Serial.println("Warning: leaking an active allocator object"); // We don't properly handle this yet
+    else
+        free(ptr);
+}
+
+#endif