SyncFenceCompat
@ExperimentalApi
public class SyncFenceCompat implements AutoCloseable
A helper class that allows duplicating a SyncFence, and wrapping a fence file descriptor on earlier API levels.
Summary
Public methods |
|
|---|---|
static SyncFenceCompat |
adoptFenceFileDescriptor(int fileDescriptor)Take ownership of a raw native fence file descriptor into a new SyncFenceCompat. |
boolean |
await(int timeoutMs)Waits for the fence to signal. |
void |
close() |
static SyncFenceCompat |
@RequiresApi(value = 33)Creates an instance that duplicates a |
Public methods
adoptFenceFileDescriptor
public static SyncFenceCompat adoptFenceFileDescriptor(int fileDescriptor)
Take ownership of a raw native fence file descriptor into a new SyncFenceCompat.
The returned instance now owns the given file descriptor, and will be responsible for closing it.
Graphics APIs such as Vulkan are a common source of a native fence file descriptors.
| Parameters | |
|---|---|
int fileDescriptor |
The raw native fence file descriptor. |
await
public boolean await(int timeoutMs)
Waits for the fence to signal.
| Parameters | |
|---|---|
int timeoutMs |
The timeout in milliseconds. A negative value means infinite timeout. |
| Returns | |
|---|---|
boolean |
Whether the fence signaled within the timeout. |
| Throws | |
|---|---|
android.system.ErrnoException |
If an error occurs while polling the fence. See the Linux manual pages for the poll system call. |
duplicate
@RequiresApi(value = 33)
public static SyncFenceCompat duplicate(SyncFence syncFence)
Creates an instance that duplicates a SyncFence. Both fences must be closed independently.