Get rid of memory leaks found by valgrind. Addresses #197.

git-svn-id: file:///svn/tokudb@1216 c7de825b-a66e-492c-adef-691d508d4ae1

cxx/db.cpp

@@ -24,6 +24,9 @@ Db::Db(DbEnv *env, u_int32_t flags)
 }
 
 Db::~Db() {
+    if (is_private_env) {
+	delete the_Env; // The destructor closes the env.
+    }
     if (!the_db) {
 	close(0); // the user should have called close, but we do it here if not done.
     }

cxx/tests/Makefile

 SRCS = $(wildcard *.cpp)
 TARGETS = $(patsubst %.cpp,%,$(SRCS))
 
-DBCXX = ../dbt.o ../db.o ../dbenv.o ../dbc.o
 CPPFLAGS = -I../ -I../../include
 CXXFLAGS = -Wall -g
-LDLIBS = ../../lib/libdb.a -lz
+LDLIBS = ../../lib/libtdb_cxx.a ../../lib/libdb.a -lz
 
 all: $(TARGETS)
 $(TARGETS): $(DBCXX)

cxx/tests/db_create.cpp

@@ -28,6 +28,7 @@ int dbcreate(char *dbfile, char *dbname, int argc, char *argv[]) {
         r = env->close(0); assert(r == 0);
         delete env;
     }
+    delete db;
     return 0;
 }