Add binder::CommandStream
CommandStream is responsible to interpret incoming commands read from the driver.
It's also responsible to write outgoing commands to the driver.
This patch is to add the basic parts of CommandStream,
it will be functional after a few more patches.
BUG=563282
Review URL: https://codereview.chromium.org/1505353008
Cr-Commit-Position: refs/heads/master@{#365189}
diff --git a/chromeos/binder/command_stream_unittest.cc b/chromeos/binder/command_stream_unittest.cc
new file mode 100644
index 0000000..ae67ab3
--- /dev/null
+++ b/chromeos/binder/command_stream_unittest.cc
@@ -0,0 +1,47 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <unistd.h>
+#include <linux/android/binder.h>
+
+#include "chromeos/binder/command_stream.h"
+#include "chromeos/binder/driver.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace binder {
+
+namespace {
+
+// TODO(hashimoto): Add tests for Fetch() and ProcessCommand().
+class BinderCommandStreamTest : public ::testing::Test,
+ public CommandStream::IncomingCommandHandler {
+ public:
+ BinderCommandStreamTest() : command_stream_(&driver_, this) {}
+ ~BinderCommandStreamTest() override {}
+
+ void SetUp() override { ASSERT_TRUE(driver_.Initialize()); }
+
+ protected:
+ Driver driver_;
+ CommandStream command_stream_;
+};
+
+} // namespace
+
+TEST_F(BinderCommandStreamTest, EnterLooper) {
+ command_stream_.AppendOutgoingCommand(BC_ENTER_LOOPER, nullptr, 0);
+ EXPECT_TRUE(command_stream_.Flush());
+ command_stream_.AppendOutgoingCommand(BC_EXIT_LOOPER, nullptr, 0);
+ EXPECT_TRUE(command_stream_.Flush());
+}
+
+TEST_F(BinderCommandStreamTest, Error) {
+ // Kernel's binder.h says BC_ATTEMPT_ACQUIRE is not currently supported.
+ binder_pri_desc params = {};
+ command_stream_.AppendOutgoingCommand(BC_ATTEMPT_ACQUIRE, ¶ms,
+ sizeof(params));
+ EXPECT_FALSE(command_stream_.Flush());
+}
+
+} // namespace binder
