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-rw-r--r--starts/meaning-vm/level-0/memorystore.cpp112
-rw-r--r--starts/meaning-vm/level-0/memorystore.hpp4
-rw-r--r--starts/meaning-vm/level0.cpp2
-rw-r--r--starts/meaning-vm/level1.cpp2
-rw-r--r--starts/meaning-vm/makefile2
5 files changed, 93 insertions, 29 deletions
diff --git a/starts/meaning-vm/level-0/memorystore.cpp b/starts/meaning-vm/level-0/memorystore.cpp
index 61f8ec0..220d0c3 100644
--- a/starts/meaning-vm/level-0/memorystore.cpp
+++ b/starts/meaning-vm/level-0/memorystore.cpp
@@ -3,50 +3,53 @@
#include "errors.hpp"
#include "ref.hpp"
-#include <unordered_set>
+#include <memory>
+#include <unordered_map>
namespace intellect {
namespace level0 {
static auto & index()
{
- static std::unordered_set<ref, std::hash<concept*>> index;
+ static std::unordered_map<ref, std::unique_ptr<concept>, std::hash<concept*>> index;
return index;
}
namespace concepts {
- ref allocator() { static ref ret = new concept(); return ret; };
- ref allocates() { static ref ret = new concept(); return ret; };
- ref allocations() { static ref ret = new concept(); return ret; };
- ref level0allocations() { static ref ret = new concept(); return ret; };
+ ref allocator() { static ref ret = basic_alloc(); return ret; };
+ ref allocates() { static ref ret = basic_alloc(); return ret; };
+ ref allocations() { static ref ret = basic_alloc(); return ret; };
+ ref level0allocations() { static ref ret = basic_alloc(); return ret; };
}
struct init { init()
{
concepts::allocator().link(concepts::allocator(), concepts::level0allocations());
concepts::level0allocations().link(concepts::allocates(), concepts::allocator());
- index().insert(concepts::allocator());
concepts::allocates().link(concepts::allocator(), concepts::level0allocations());
concepts::level0allocations().link(concepts::allocates(), concepts::allocates());
- index().insert(concepts::allocates());
concepts::allocations().link(concepts::allocator(), concepts::level0allocations());
concepts::level0allocations().link(concepts::allocates(), concepts::allocations());
- index().insert(concepts::allocations());
concepts::level0allocations().link(concepts::allocator(), concepts::level0allocations());
concepts::level0allocations().link(concepts::allocates(), concepts::level0allocations());
- index().insert(concepts::level0allocations());
} } _init;
+ref basic_alloc(std::any data)
+{
+ ref r = new concept();
+ r.ptr()->data = data;
+ index().emplace(r, r.ptr());
+ return r;
+}
+
ref alloc(ref source, std::any data)
{
- concept * r = new concept();
- r->data = data;
- alloc((ref)r, source);
- index().insert(r);
+ ref r = basic_alloc(data);
+ alloc(r, source);
return r;
}
@@ -63,9 +66,10 @@ void realloc(ref r, ref newsource)
dealloc(r, oldsource);
}
-static concept* referenced(ref r, ref source) {
- for (ref r2 : index()) {
- if (r2 == source) {
+static concept* referenced(ref r, concept* source = 0) {
+ for (auto & r2pair : index()) {
+ ref r2 = r2pair.first;
+ if (r2.ptr() == source) {
continue;
}
if (r2 == r) {
@@ -83,28 +87,82 @@ static concept* referenced(ref r, ref source) {
return 0;
}
-void dealloc(ref r, ref source) {
+void basic_dealloc(ref r)
+{
auto it = index().find(r);
if (it == index().end()) { throw no_such_concept(r); }
- source.unlink(concepts::allocates(), r);
- r.unlink(concepts::allocator(), source);
- if (r.linked(concepts::allocator())) { return; }
+ concept * referenced = intellect::level0::referenced(r);
+ if (referenced) {
+ throw still_referenced_by(r, referenced);
+ }
index().erase(it);
+}
+
+void dealloc_from(ref source)
+{
+ std::remove_reference<decltype(index())>::type forgotten;
- auto ours = r.getAll(concepts::allocates());
+ auto ours = source.getAll(concepts::allocates());
for (auto allocation : ours) {
- dealloc(allocation, r);
+ source.unlink(concepts::allocates(), allocation);
+ allocation.unlink(concepts::allocator(), source);
+ if (allocation.linked(concepts::allocator())) { continue; }
+
+ auto it = index().find(allocation);
+ if (it != index().end()) {
+ forgotten.insert(index().extract(it));
+ }
+ }
+ try {
+ for (auto allocation : ours ) {
+ if (allocation.linked(concepts::allocates())) {
+ dealloc_from(allocation);
+ }
+ }
+ for (auto ghost : ours) {
+ concept * referenced = intellect::level0::referenced(ghost, source);
+ if (referenced) {
+ throw still_referenced_by(ghost, referenced);
+ }
+ }
+ } catch(...) {
+ // NOTE: this doesn't rebuild deallocated subgroups, but that could be done
+ // by returning them.
+ index().merge(forgotten);
+ for (auto allocation : ours) {
+ source.link(concepts::allocates(), allocation);
+ allocation.link(concepts::allocator(), source);
+ }
+ throw;
}
- for (auto ghost : ours) {
- concept * referenced = intellect::level0::referenced(ghost, source);
+ // concepts in forgotten will be deallocated when they leave scope
+ // note: scoped allocation is just a plan to forget (at the end of a { } block)
+}
+
+void dealloc(ref r, ref source)
+{
+ auto it = index().find(r);
+ if (it == index().end()) { throw no_such_concept(r); }
+
+ source.unlink(concepts::allocates(), r);
+ r.unlink(concepts::allocator(), source);
+ if (r.linked(concepts::allocator())) { return; }
+
+ try {
+ dealloc_from(r);
+ concept * referenced = intellect::level0::referenced(r, source);
if (referenced) {
- throw still_referenced_by(ghost, referenced);
+ throw still_referenced_by(r, referenced);
}
+
+ index().erase(it);
+ } catch(...) {
+ source.link(concepts::allocates(), r);
+ r.link(concepts::allocator(), source);
}
- delete (concept*)r;
}
std::size_t allocated()
diff --git a/starts/meaning-vm/level-0/memorystore.hpp b/starts/meaning-vm/level-0/memorystore.hpp
index eff4235..f4faa13 100644
--- a/starts/meaning-vm/level-0/memorystore.hpp
+++ b/starts/meaning-vm/level-0/memorystore.hpp
@@ -38,9 +38,13 @@ extern ref level0allocations(); // allocator for concepts internal to level0
}
+ref basic_alloc(std::any data = {});
+void basic_dealloc(ref allocated);
+
ref alloc(ref allocator, std::any data = {}); // new concept
void alloc(ref allocated, ref allocator); // extra ownership for concept
void realloc(ref allocated, ref allocator); // move ownership for concept to allocator
+[[deprecated("can make recursion: turn to workable habits")]]
void dealloc(ref allocated, ref allocator); // remove ownership for concept
std::size_t allocated();
diff --git a/starts/meaning-vm/level0.cpp b/starts/meaning-vm/level0.cpp
index 86ce0cd..4ab8b7b 100644
--- a/starts/meaning-vm/level0.cpp
+++ b/starts/meaning-vm/level0.cpp
@@ -9,6 +9,8 @@ using namespace intellect::level0;
int main()
{
+ std::cout << allocated() << " allocated" << std::endl;
+
ref store = alloc(concepts::allocations()); out(store);
ref a = alloc(store); out(a);
ref b = alloc(store); out(b);
diff --git a/starts/meaning-vm/level1.cpp b/starts/meaning-vm/level1.cpp
index aa945b3..3c1a634 100644
--- a/starts/meaning-vm/level1.cpp
+++ b/starts/meaning-vm/level1.cpp
@@ -65,7 +65,7 @@ int main()
std::cout << apple.dump("dumped", true) << std::endl;
std::cout << intellect::level0::allocated() << " allocated" << std::endl;
- intellect::level0::dealloc(intellect::level0::concepts::allocations(), intellect::level0::concepts::allocations());
+ intellect::level0::dealloc(intellect::level0::concepts::allocations(), intellect::level0::concepts::level0allocations());
std::cout << intellect::level0::allocated() << " allocated" << std::endl;
return 0;
diff --git a/starts/meaning-vm/makefile b/starts/meaning-vm/makefile
index 325a07c..637c4fe 100644
--- a/starts/meaning-vm/makefile
+++ b/starts/meaning-vm/makefile
@@ -1,4 +1,4 @@
-CXXFLAGS=-Wall -Werror -std=gnu++17 -fno-operator-names -ggdb -O0
+CXXFLAGS=-Wall -Werror -Wno-error=deprecated-declarations -std=gnu++17 -fno-operator-names -ggdb -O0
LINK.o=$(LINK.cc)
all: level0 level1 habit-starts/rhythm
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 07:06:02 +0000