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/*
* 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;
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_
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