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Bug 323071: Make sure LargePipedInputStream does not leak so that we can run all JUnit tests in a single run.

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This commit is contained in:
Marc Khouzam 2011-05-13 18:31:13 +00:00
parent 48182ee891
commit 4bd2d6a68d
1 changed files with 29 additions and 8 deletions
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37
dsf-gdb/org.eclipse.cdt.dsf.gdb/src/org/eclipse/cdt/dsf/mi/service/command/AbstractCLIProcess.java
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@ -67,10 +67,10 @@ public abstract class AbstractCLIProcess extends Process
private final OutputStream fOutputStream = new CLIOutputStream();
// Client process console stream.
private final PipedInputStream fMIInConsolePipe;
private final PipedOutputStream fMIOutConsolePipe;
private final PipedInputStream fMIInLogPipe;
private final PipedOutputStream fMIOutLogPipe;
private PipedInputStream fMIInConsolePipe;
private PipedOutputStream fMIOutConsolePipe;
private PipedInputStream fMIInLogPipe;
private PipedOutputStream fMIOutLogPipe;
private boolean fDisposed = false;
@ -142,11 +142,26 @@ public abstract class AbstractCLIProcess extends Process
@ConfinedToDsfExecutor("fSession#getExecutor")
public void dispose() {
if (fDisposed) return;
fCommandControl.removeEventListener(this);
fCommandControl.removeCommandListener(this);
closeIO();
fDisposed = true;
// We have memory leaks that prevent this class from being
// GCed. The problem becomes bad because we are holding
// two LargePipedInputStream and eventually, the JUnit tests
// run out of memory. To address this particular problem,
// before the actual causes of the leaks are fixed, lets
// make sure we release all our four streams which all have
// a reference to a LargePipedInputStream
// Bug 323071
fMIInConsolePipe = null;
fMIInLogPipe = null;
fMIOutConsolePipe = null;
fMIOutLogPipe = null;
}
private void closeIO() {
@ -213,8 +228,10 @@ public abstract class AbstractCLIProcess extends Process
setPrompt(str);
try {
fMIOutConsolePipe.write(str.getBytes());
fMIOutConsolePipe.flush();
if (fMIOutConsolePipe != null) {
fMIOutConsolePipe.write(str.getBytes());
fMIOutConsolePipe.flush();
}
} catch (IOException e) {
}
} else if (oobr instanceof MILogStreamOutput) {
@ -222,8 +239,10 @@ public abstract class AbstractCLIProcess extends Process
String str = out.getString();
if (str != null) {
try {
if (fMIOutLogPipe != null) {
fMIOutLogPipe.write(str.getBytes());
fMIOutLogPipe.flush();
}
} catch (IOException e) {
}
}
@ -299,8 +318,10 @@ public abstract class AbstractCLIProcess extends Process
// Add a space for readability
String str = SECONDARY_PROMPT + ' ';
try {
fMIOutConsolePipe.write(str.getBytes());
fMIOutConsolePipe.flush();
if (fMIOutConsolePipe != null) {
fMIOutConsolePipe.write(str.getBytes());
fMIOutConsolePipe.flush();
}
} catch (IOException e) {
}
}