e7d878f9d0
Android runs a finalizer watchdog that tracks the running time of finalizers and throws an exception if any runs too long. Our finalizers do very little work and as such are not affected by the timeout. However, there has been reports, for example: https://stackoverflow.com/questions/24021609/how-to-handle-java-util-concurrent-timeoutexception-android-os-binderproxy-fin that the watchdog does not take into account periods where the device goes to sleep in the middle of a finalizer run. So if a given app runs in the background, the Java GC starts a finalizer and the device goes to sleep before it returns, an exception will crash the app if the sleep period extends the watchdog timeout. The problem might be fixed on some newer version of Android, but the problem is reported for as late as Android 6. The suggested workaround is to use PhantomReferences and run a background thread that take dead references off a ReferenceQueue and perform cleanup. This CL builds on the previous CL and splits up the Ref class so Refs only reference counts Java objects, while a new class GoRef tracks Go references. The Go references are wrapped in PhantomReferences that in turn appear on a GoRefQueue to be cleaned up by a background (daemon) Thread. Change-Id: I04e3296b851999c612d3baf6a593cc044c2c5bdd Reviewed-on: https://go-review.googlesource.com/106876 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
133 lines
3.6 KiB
Plaintext
133 lines
3.6 KiB
Plaintext
// Java class ignore.S is a proxy for talking to a Go program.
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// gobind -lang=java ignore
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//
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// File is generated by gobind. Do not edit.
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package ignore;
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import go.Seq;
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public final class S implements Seq.Proxy, I {
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static { Ignore.touch(); }
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private final int refnum;
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@Override public final int incRefnum() {
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Seq.incGoRef(refnum);
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return refnum;
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}
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S(int refnum) { this.refnum = refnum; Seq.trackGoRef(refnum, this); }
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public S() { this.refnum = __New(); Seq.trackGoRef(refnum, this); }
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private static native int __New();
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// skipped field S.F with unsupported type: interface{}
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// skipped method S.Argument with unsupported parameter or return types
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// skipped method S.Result with unsupported parameter or return types
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@Override public boolean equals(Object o) {
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if (o == null || !(o instanceof S)) {
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return false;
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}
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S that = (S)o;
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// skipped field S.F with unsupported type: interface{}
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return true;
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}
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@Override public int hashCode() {
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return java.util.Arrays.hashCode(new Object[] {});
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}
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@Override public String toString() {
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StringBuilder b = new StringBuilder();
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b.append("S").append("{");
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return b.append("}").toString();
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}
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}
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// Java class ignore.I is a proxy for talking to a Go program.
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// gobind -lang=java ignore
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//
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// File is generated by gobind. Do not edit.
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package ignore;
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import go.Seq;
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public interface I {
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// skipped method I.Argument with unsupported parameter or return types
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// skipped method I.Result with unsupported parameter or return types
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}
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// Java class ignore.Ignore is a proxy for talking to a Go program.
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// gobind -lang=java ignore
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//
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// File is generated by gobind. Do not edit.
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package ignore;
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import go.Seq;
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public abstract class Ignore {
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static {
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Seq.touch(); // for loading the native library
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_init();
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}
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private Ignore() {} // uninstantiable
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// touch is called from other bound packages to initialize this package
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public static void touch() {}
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private static native void _init();
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private static final class proxyI implements Seq.Proxy, I {
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private final int refnum;
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@Override public final int incRefnum() {
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Seq.incGoRef(refnum);
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return refnum;
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}
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proxyI(int refnum) { this.refnum = refnum; Seq.trackGoRef(refnum, this); }
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// skipped method I.Argument with unsupported parameter or return types
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// skipped method I.Result with unsupported parameter or return types
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}
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// skipped const Cuint with unsupported type: uint
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// skipped const Cuint32 with unsupported type: uint32
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// skipped const Cuint64 with unsupported type: uint64
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// skipped const NamedConst with unsupported type: ignore.NamedString
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// skipped variable C128 with unsupported type: complex128
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// skipped variable C64 with unsupported type: complex64
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// skipped variable Uint with unsupported type: uint
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// skipped variable Uint32 with unsupported type: uint32
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// skipped variable Uint64 with unsupported type: uint64
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// skipped variable V with unsupported type: interface{}
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// skipped variable Var with unsupported type: interface{}
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// skipped function Argument with unsupported parameter or return types
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// skipped function Result with unsupported parameter or return types
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}
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