removed the session mutex for improved performance

test/test_storage.cpp

@@ -384,6 +384,7 @@ void run_elevator_test()
 		// this is not guaranteed, but very very likely
 		TEST_CHECK(turns > 20);
 
+		dio.abort();
 		dio.join();
 	}
 }
@@ -574,6 +575,7 @@ void run_storage_tests(boost::intrusive_ptr<torrent_info> info
 	ios.poll(ec);
 	if (ec) std::cerr << "poll: " << ec.message() << std::endl;
 
+	io.abort();
 	io.join();
 	remove_all(combine_path(test_path, "temp_storage2"), ec);
 	if (ec) std::cerr << "remove_all: " << ec.message() << std::endl;
@@ -723,6 +725,7 @@ void test_check_files(std::string const& test_path
 	TEST_EQUAL(pieces[1], false);
 	TEST_EQUAL(pieces[2], false);
 	TEST_EQUAL(pieces[3], true);
+	io.abort();
 	io.join();
 }
 

test/test_transfer.cpp

@@ -112,9 +112,9 @@ void test_rate()
 
 }
 
-void print_alert(alert const& a)
+void print_alert(std::auto_ptr<alert>)
 {
-	std::cout << "ses1 (alert dispatch function): " << a.message() << std::endl;
+	std::cout << "ses1 (alert dispatch function): "/* << a.message() */ << std::endl;
 }
 
 // simulate a full disk