Enable --debug option for "lshal" command.
This calls into live binderized services and logs their "IBase::debug(...)"
output.
Bug: 36520620
Test: make, adb shell lshal, adb shell bugreport
Change-Id: Ida3b0c61eafd9f3de562a5df3af24bbaf383de22
diff --git a/cmds/lshal/PipeRelay.h b/cmds/lshal/PipeRelay.h
new file mode 100644
index 0000000..76b2b23
--- /dev/null
+++ b/cmds/lshal/PipeRelay.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FRAMEWORKS_NATIVE_CMDS_LSHAL_PIPE_RELAY_H_
+
+#define FRAMEWORKS_NATIVE_CMDS_LSHAL_PIPE_RELAY_H_
+
+#include <android-base/macros.h>
+#include <ostream>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+namespace lshal {
+
+/* Creates an AF_UNIX socketpair and spawns a thread that relays any data
+ * written to the "write"-end of the pair to the specified output stream "os".
+ */
+struct PipeRelay {
+ explicit PipeRelay(std::ostream &os);
+ ~PipeRelay();
+
+ status_t initCheck() const;
+
+ // Returns the file descriptor corresponding to the "write"-end of the
+ // connection.
+ int fd() const;
+
+private:
+ struct RelayThread;
+
+ std::ostream &mOutStream;
+ status_t mInitCheck;
+ int mFds[2];
+ sp<RelayThread> mThread;
+
+ static void CloseFd(int *fd);
+
+ DISALLOW_COPY_AND_ASSIGN(PipeRelay);
+};
+
+} // namespace lshal
+} // namespace android
+
+#endif // FRAMEWORKS_NATIVE_CMDS_LSHAL_PIPE_RELAY_H_
+