Add function to allocate a Value in traceable memory

alyssais · Apr 16, 2020 · b3e5eea · b3e5eea
1 parent 1290411
commit b3e5eea
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Showing 2 changed files with 13 additions and 0 deletions.
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
@@ -22,6 +22,8 @@
 
 #if HAVE_BOEHMGC
 
+#define GC_INCLUDE_NEW
+
 #include <gc/gc.h>
 #include <gc/gc_cpp.h>
 
@@ -56,6 +58,12 @@ static char * dupStringWithLen(const char * s, size_t size)
 }
 
 
+RootValue allocRootValue(Value * v)
+{
+    return std::allocate_shared<Value *>(traceable_allocator<Value *>(), v);
+}
+
+
 static void printValue(std::ostream & str, std::set<const Value *> & active, const Value & v)
 {
     checkInterrupt();

diff --git a/src/libexpr/value.hh b/src/libexpr/value.hh
@@ -261,4 +261,9 @@ typedef std::map<Symbol, Value *> ValueMap;
 #endif
 
 
+/* A value allocated in traceable memory. */
+typedef std::shared_ptr<Value *> RootValue;
+
+RootValue allocRootValue(Value * v);
+
 }