diff options
Diffstat (limited to 'als/InputEventReader.cpp')
-rw-r--r-- | als/InputEventReader.cpp | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/als/InputEventReader.cpp b/als/InputEventReader.cpp deleted file mode 100644 index 4799dfa..0000000 --- a/als/InputEventReader.cpp +++ /dev/null @@ -1,112 +0,0 @@ -/* -* Copyright (C) 2015 Intel Corp -* -* 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. -*/ - -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <poll.h> -#include <sys/cdefs.h> -#include <sys/types.h> -#include <linux/input.h> -#include <cutils/log.h> -#include "InputEventReader.h" - -/*****************************************************************************/ - -struct input_event; - -InputEventCircularReader::InputEventCircularReader(size_t numEvents) - : mBuffer(new input_event[numEvents * 2]), - mBufferEnd(mBuffer + numEvents), - mHead(mBuffer), - mCurr(mBuffer), - mFreeSpace(numEvents) -{ - FUNC_LOG; - mLastFd = -1; -} - -InputEventCircularReader::~InputEventCircularReader() -{ - FUNC_LOG; - delete [] mBuffer; -} - -/* TODO: clear DEBUG flag on production builds, keep it during integration */ -#define INPUT_EVENT_DEBUG (0) -ssize_t InputEventCircularReader::fill(int fd) -{ - FUNC_LOG; - size_t numEventsRead = 0; - mLastFd = fd; - - LOGV_IF(INPUT_EVENT_DEBUG, - "DEBUG:%s enter, fd=%d\n", __PRETTY_FUNCTION__, fd); - if (mFreeSpace) { - const ssize_t nread = read(fd, mHead, mFreeSpace * sizeof(input_event)); - if (nread < 0 || nread % sizeof(input_event)) { - if (INPUT_EVENT_DEBUG) { - LOGV_IF(nread < 0, "DEBUG:%s exit nread < 0\n", - __PRETTY_FUNCTION__); - LOGV_IF(nread % sizeof(input_event), - "DEBUG:%s exit nread %% sizeof(input_event)\n", - __PRETTY_FUNCTION__); - } - return (nread < 0 ? -errno : -EINVAL); - } - - numEventsRead = nread / sizeof(input_event); - if (numEventsRead) { - mHead += numEventsRead; - mFreeSpace -= numEventsRead; - if (mHead > mBufferEnd) { - size_t s = mHead - mBufferEnd; - memcpy(mBuffer, mBufferEnd, s * sizeof(input_event)); - mHead = mBuffer + s; - } - } - } - - LOGV_IF(INPUT_EVENT_DEBUG, "DEBUG:%s exit, numEventsRead:%d\n", - __PRETTY_FUNCTION__, numEventsRead); - return numEventsRead; -} - -ssize_t InputEventCircularReader::readEvent(input_event const** events) -{ - FUNC_LOG; - *events = mCurr; - ssize_t available = (mBufferEnd - mBuffer) - mFreeSpace; - LOGV_IF(INPUT_EVENT_DEBUG, "DEBUG:%s fd:%d, available:%d\n", - __PRETTY_FUNCTION__, mLastFd, (int)available); - return (available ? 1 : 0); -} - -void InputEventCircularReader::next() -{ - FUNC_LOG; - mCurr++; - mFreeSpace++; - if (mCurr >= mBufferEnd) { - mCurr = mBuffer; - } - ssize_t available = (mBufferEnd - mBuffer) - mFreeSpace; - LOGV_IF(INPUT_EVENT_DEBUG, "DEBUG:%s fd:%d, still available:%d\n", - __PRETTY_FUNCTION__, mLastFd, (int)available); -} - |