66 lines
2.0 KiB
Java
66 lines
2.0 KiB
Java
package transport;
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public abstract class Receiver extends Transport {
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private boolean writing_allowed = true;
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private byte[] rcv_buffer = new byte[1024];
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private int rcv_offset;
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private int rcv_length;
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public Receiver() {
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}
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public final synchronized int receive(byte[] var1, int var2, int var3) throws InterruptedException {
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while(this.rcv_length == 0) {
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this.wait();
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}
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if (this.rcv_length < 0) {
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return this.rcv_length;
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} else if (this.rcv_length > var3) {
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for(int var4 = 0; var4 < var3; ++var4) {
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var1[var2 + var4] = this.rcv_buffer[this.rcv_offset + var4];
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}
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this.rcv_offset += var3;
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this.rcv_length -= var3;
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this.notifyAll();
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return var3;
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} else {
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var3 = this.rcv_length;
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do {
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--this.rcv_length;
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var1[var2 + this.rcv_length] = this.rcv_buffer[this.rcv_offset + this.rcv_length];
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} while(this.rcv_length > 0);
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this.notify();
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return var3;
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}
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}
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protected final void deliver(byte[] bytes, int offset, int length) {
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if (length == 0) {
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System.err.println("Receiver: error: deliver was called with zero length.");
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} else {
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synchronized(this) {
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try {
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while(this.rcv_length != 0) {
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this.wait();
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}
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for(int i = 0; i < length; ++i) {
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this.rcv_buffer[i] = bytes[i + offset];
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}
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this.rcv_offset = 0;
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this.rcv_length = length;
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this.notifyAll();
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} catch (InterruptedException ignored) {
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System.err.println("Receiver.deliver: warning: interrupted while delivering to application. Some data might be lost.");
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}
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}
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}
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}
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}
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