diff options
Diffstat (limited to 'libs/gui/SensorEventQueue.cpp')
-rw-r--r-- | libs/gui/SensorEventQueue.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libs/gui/SensorEventQueue.cpp b/libs/gui/SensorEventQueue.cpp index 76ae470..4b7986e 100644 --- a/libs/gui/SensorEventQueue.cpp +++ b/libs/gui/SensorEventQueue.cpp @@ -20,6 +20,7 @@ #include <stdint.h> #include <sys/types.h> #include <sys/socket.h> +#include <linux/errno.h> #include <utils/Errors.h> #include <utils/RefBase.h> @@ -149,6 +150,23 @@ status_t SensorEventQueue::setEventRate(Sensor const* sensor, nsecs_t ns) const return mSensorEventConnection->setEventRate(sensor->getHandle(), ns); } +status_t SensorEventQueue::injectSensorEvent(const ASensorEvent& event) { + do { + // Blocking call. + ssize_t size = ::send(mSensorChannel->getFd(), &event, sizeof(event), MSG_NOSIGNAL); + if (size >= 0) { + return NO_ERROR; + } else if (size < 0 && errno == EAGAIN) { + // If send is returning a "Try again" error, sleep for 100ms and try again. In all + // other cases log a failure and exit. + usleep(100000); + } else { + ALOGE("injectSensorEvent failure %s %zd", strerror(errno), size); + return INVALID_OPERATION; + } + } while (true); +} + void SensorEventQueue::sendAck(const ASensorEvent* events, int count) { for (int i = 0; i < count; ++i) { if (events[i].flags & WAKE_UP_SENSOR_EVENT_NEEDS_ACK) { |