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Diffstat (limited to '60xx/libsensors_iio/InputEventReader.h')
-rw-r--r-- | 60xx/libsensors_iio/InputEventReader.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/60xx/libsensors_iio/InputEventReader.h b/60xx/libsensors_iio/InputEventReader.h new file mode 100644 index 0000000..5c752db --- /dev/null +++ b/60xx/libsensors_iio/InputEventReader.h @@ -0,0 +1,49 @@ +/* +* Copyright (C) 2012 Invensense, Inc. +* +* 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 ANDROID_INPUT_EVENT_READER_H +#define ANDROID_INPUT_EVENT_READER_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + +#include "SensorBase.h" + +/*****************************************************************************/ + +struct input_event; + +class InputEventCircularReader +{ + struct input_event* const mBuffer; + struct input_event* const mBufferEnd; + struct input_event* mHead; + struct input_event* mCurr; + ssize_t mFreeSpace; + +public: + InputEventCircularReader(size_t numEvents); + ~InputEventCircularReader(); + ssize_t fill(int fd); + ssize_t readEvent(input_event const** events); + void next(); +}; + +/*****************************************************************************/ + +#endif // ANDROID_INPUT_EVENT_READER_H |