From 3c87629c7e659ca5afe7d6e5961cfe834df17244 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 28 Jan 2016 02:40:59 +0100
Subject: [PATCH] realloc-pool unit-test

---
 libs/pbd/pbd/reallocpool.h        |  4 ++++
 libs/pbd/test/reallocpool_test.cc | 40 +++++++++++++++++++++++++++++++
 libs/pbd/test/reallocpool_test.h  | 16 +++++++++++++
 libs/pbd/wscript                  |  1 +
 4 files changed, 61 insertions(+)
 create mode 100644 libs/pbd/test/reallocpool_test.cc
 create mode 100644 libs/pbd/test/reallocpool_test.h

diff --git a/libs/pbd/pbd/reallocpool.h b/libs/pbd/pbd/reallocpool.h
index e79cf9df9e..e02250c419 100644
--- a/libs/pbd/pbd/reallocpool.h
+++ b/libs/pbd/pbd/reallocpool.h
@@ -67,6 +67,10 @@ public:
 	void printstats ();
 	void dumpsegments ();
 
+#ifdef RAP_WITH_CALL_STATS
+	size_t mem_used () const { return _cur_used; }
+#endif
+
 private:
 	std::string _name;
 	size_t _poolsize;
diff --git a/libs/pbd/test/reallocpool_test.cc b/libs/pbd/test/reallocpool_test.cc
new file mode 100644
index 0000000000..7016d05d5d
--- /dev/null
+++ b/libs/pbd/test/reallocpool_test.cc
@@ -0,0 +1,40 @@
+#include <string.h>
+#include "reallocpool_test.h"
+#include "pbd/reallocpool.h"
+
+CPPUNIT_TEST_SUITE_REGISTRATION (ReallocPoolTest);
+
+using namespace std;
+
+ReallocPoolTest::ReallocPoolTest ()
+{
+}
+
+void
+ReallocPoolTest::testBasic ()
+{
+	srand (0);
+	PBD::ReallocPool *m = new PBD::ReallocPool("TestPool", 256 * 1024);
+
+	for (int l = 0; l < 2 * 1024 * 1024; ++l) {
+		void *x[32];
+		size_t s[32];
+		int cnt = rand() % 32;
+		for (int i = 0; i < cnt; ++i) {
+			s[i] = rand() % 1024;
+			x[i] = m->malloc (s[i]);
+		}
+		for (int i = 0; i < cnt; ++i) {
+			if (x[i]) {
+				memset (x[i], 0xa5, s[i]);
+			}
+		}
+		for (int i = 0; i < cnt; ++i) {
+			m->free (x[i]);
+		}
+	}
+#ifdef RAP_WITH_CALL_STATS
+	CPPUNIT_ASSERT (m->mem_used() == 0);
+#endif
+	delete (m);
+}
diff --git a/libs/pbd/test/reallocpool_test.h b/libs/pbd/test/reallocpool_test.h
new file mode 100644
index 0000000000..fe1d706797
--- /dev/null
+++ b/libs/pbd/test/reallocpool_test.h
@@ -0,0 +1,16 @@
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+#include "glibmm/threads.h"
+
+class ReallocPoolTest : public CppUnit::TestFixture
+{
+	CPPUNIT_TEST_SUITE (ReallocPoolTest);
+	CPPUNIT_TEST (testBasic);
+	CPPUNIT_TEST_SUITE_END ();
+
+public:
+	ReallocPoolTest ();
+	void testBasic ();
+
+private:
+};
diff --git a/libs/pbd/wscript b/libs/pbd/wscript
index e533921f59..18b13e3054 100644
--- a/libs/pbd/wscript
+++ b/libs/pbd/wscript
@@ -164,6 +164,7 @@ def build(bld):
                 test/signals_test.cc
                 test/convert_test.cc
                 test/filesystem_test.cc
+                test/reallocpool_test.cc
                 test/xml_test.cc
                 test/test_common.cc
         '''.split()