# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1616277403 -3600
# Node ID b66053e4b765f3591066ebd9a66cecfbe6c2179f
# Parent  7e00350a9add2f43a449f55c401878cc86f429c8
Added a method to indicate whether memory was actually allocated.

diff -r 7e00350a9add -r b66053e4b765 memory_preallocated.cc
--- a/memory_preallocated.cc	Sat Mar 20 17:05:31 2021 +0100
+++ b/memory_preallocated.cc	Sat Mar 20 22:56:43 2021 +0100
@@ -38,6 +38,15 @@
         delete *it;
 }
 
+/* Return whether memory has been allocated. */
+
+bool MemoryPreallocated::allocated()
+{
+    std::lock_guard<std::mutex> guard(_lock);
+
+    return !(_free.empty() && _used.empty());
+}
+
 /* Allocate a new region of the configured size rounded to the nearest page. */
 
 Region *MemoryPreallocated::region()
diff -r 7e00350a9add -r b66053e4b765 memory_preallocated.h
--- a/memory_preallocated.h	Sat Mar 20 17:05:31 2021 +0100
+++ b/memory_preallocated.h	Sat Mar 20 22:56:43 2021 +0100
@@ -21,6 +21,8 @@
 
     virtual ~MemoryPreallocated();
 
+    virtual bool allocated();
+
     virtual Region *region();
 
     virtual void release(Region *region);