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jSerialComm
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Synchronize open/close on class as well as instance

This commit is contained in:
Will Hedgecock 2021-11-19 12:44:28 -06:00
parent bcc9e1e19f
commit b52271c48c
2 changed files with 62 additions and 54 deletions
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2
build.gradle
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@ -7,7 +7,7 @@ buildscript {
plugins { plugins {
id 'maven-publish' id 'maven-publish'
id 'biz.aQute.bnd.builder' version '5.0.0' id 'biz.aQute.bnd.builder' version '6.0.0'
} }
group = 'com.fazecast' group = 'com.fazecast'

10
src/main/java/com/fazecast/jSerialComm/SerialPort.java
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@ -2,7 +2,7 @@
* SerialPort.java * SerialPort.java
* *
* Created on: Feb 25, 2012 * Created on: Feb 25, 2012
* Last Updated on: Nov 12, 2021 * Last Updated on: Nov 19, 2021
* Author: Will Hedgecock * Author: Will Hedgecock
* *
* Copyright (C) 2012-2021 Fazecast, Inc. * Copyright (C) 2012-2021 Fazecast, Inc.
@ -417,6 +417,9 @@ public final class SerialPort
* @return Whether the port was successfully opened with a valid configuration. * @return Whether the port was successfully opened with a valid configuration.
*/ */
public final synchronized boolean openPort(int safetySleepTime, int deviceSendQueueSize, int deviceReceiveQueueSize) public final synchronized boolean openPort(int safetySleepTime, int deviceSendQueueSize, int deviceReceiveQueueSize)
{
// Synchronize this method to the class scope as well
synchronized (SerialPort.class)
{ {
// Set the send/receive internal buffer sizes, and return true if already opened // Set the send/receive internal buffer sizes, and return true if already opened
safetySleepTimeMS = safetySleepTime; safetySleepTimeMS = safetySleepTime;
@ -469,6 +472,7 @@ public final class SerialPort
} }
return (portHandle > 0); return (portHandle > 0);
} }
}
/** /**
* Opens this serial port for reading and writing with an optional delay time. * Opens this serial port for reading and writing with an optional delay time.
@ -503,6 +507,9 @@ public final class SerialPort
* @return Whether the port was successfully closed. * @return Whether the port was successfully closed.
*/ */
public final synchronized boolean closePort() public final synchronized boolean closePort()
{
// Synchronize this method to the class scope as well
synchronized (SerialPort.class)
{ {
if (serialEventListener != null) if (serialEventListener != null)
serialEventListener.stopListening(); serialEventListener.stopListening();
@ -510,6 +517,7 @@ public final class SerialPort
portHandle = closePortNative(portHandle); portHandle = closePortNative(portHandle);
return (portHandle < 0); return (portHandle < 0);
} }
}
/** /**
* Returns whether the port is currently open and available for communication. * Returns whether the port is currently open and available for communication.