44 lines
1.5 KiB
Java
44 lines
1.5 KiB
Java
package com.minamp.net;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ThreadFactory;
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/**
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* Background threads with big stacks. Android 2.x gives new threads ~16 KB of stack, and the
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* bundled TLS handshake + certificate parsing needs far more; overflowing it kills the app.
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* 256 KB is the most Dalvik allows.
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*/
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public final class Threads {
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public static final long STACK = 256 * 1024;
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private Threads() {}
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public static Thread create(Runnable r, String name) {
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Thread t = new Thread(null, r, name, STACK);
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t.setDaemon(true);
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return t;
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}
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public static void start(Runnable r, String name) {
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create(r, name).start();
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}
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public static ExecutorService pool(final String name, int n) {
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ThreadFactory f = new ThreadFactory() {
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private int count;
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public synchronized Thread newThread(Runnable r) { return create(r, name + "-" + (++count)); }
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};
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return n == 1 ? Executors.newSingleThreadExecutor(f) : Executors.newFixedThreadPool(n, f);
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}
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/** Readable one-liner for any failure, including Errors such as StackOverflowError. */
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public static String describe(Throwable t) {
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String m = t.getMessage();
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String cls = t.getClass().getSimpleName();
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if (m == null || m.length() == 0) return cls;
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if (t instanceof java.io.IOException) return m;
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return cls + ": " + m;
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}
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}
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