1f0c5ea652
The EventQueueFlagBits is used to notify the other end of an FMQ when an action should be taken. For instance, the read end of the queue is able to wait on a particular mask bit to be set by the write end of the queue before reading events. This is necessary because the number of events to read must be specified when calling the FMQ's read() or readBlocking() functions. read() will fail if the specified number of events is not available. readBlocking() will not perform a partial read, so if the number of events to read is not known ahead of time, the function may block for an extended period of time until enough events are queued up. By utilizing the EventFlag, the reading of events is able to wait until events are ready to be read, and then the availableToRead() function provides the number of events to read when calling read() or readBlocking(). Bug: 111070257 Test: Compiles Change-Id: I20e9e566efc58196e27e50dae3fc13518ce605fc |
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| Android.bp | ||
| ISensors.hal | ||
| types.hal | ||