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fix handle leaks in Windows Process implementation

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This commit is contained in:
Joel Dice 2010-11-09 14:56:26 -07:00
parent 2d60398e63
commit 44f55673d6
2 changed files with 30 additions and 17 deletions
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23
classpath/java-lang.cpp
View File

@ -165,17 +165,17 @@ Java_java_lang_Runtime_exec(JNIEnv* e, jclass,
SetHandleInformation(in[0], HANDLE_FLAG_INHERIT, 0);
jlong inDescriptor = static_cast<jlong>(descriptor(e, in[0]));
if(e->ExceptionCheck()) return;
e->SetLongArrayRegion(process, 1, 1, &inDescriptor);
e->SetLongArrayRegion(process, 2, 1, &inDescriptor);
makePipe(e, out);
SetHandleInformation(out[1], HANDLE_FLAG_INHERIT, 0);
jlong outDescriptor = static_cast<jlong>(descriptor(e, out[1]));
if(e->ExceptionCheck()) return;
e->SetLongArrayRegion(process, 2, 1, &outDescriptor);
e->SetLongArrayRegion(process, 3, 1, &outDescriptor);
makePipe(e, err);
SetHandleInformation(err[0], HANDLE_FLAG_INHERIT, 0);
jlong errDescriptor = static_cast<jlong>(descriptor(e, err[0]));
if(e->ExceptionCheck()) return;
e->SetLongArrayRegion(process, 3, 1, &errDescriptor);
e->SetLongArrayRegion(process, 4, 1, &errDescriptor);
PROCESS_INFORMATION pi;
ZeroMemory(&pi, sizeof(pi));
@ -203,11 +203,12 @@ Java_java_lang_Runtime_exec(JNIEnv* e, jclass,
jlong pid = reinterpret_cast<jlong>(pi.hProcess);
e->SetLongArrayRegion(process, 0, 1, &pid);
jlong tid = reinterpret_cast<jlong>(pi.hThread);
e->SetLongArrayRegion(process, 1, 1, &tid);
}
extern "C" JNIEXPORT jint JNICALL
Java_java_lang_Runtime_waitFor(JNIEnv* e, jclass, jlong pid)
Java_java_lang_Runtime_waitFor(JNIEnv* e, jclass, jlong pid, jlong tid)
{
DWORD exitCode;
WaitForSingleObject(reinterpret_cast<HANDLE>(pid), INFINITE);
@ -215,6 +216,10 @@ Java_java_lang_Runtime_waitFor(JNIEnv* e, jclass, jlong pid)
if(not success){
throwNew(e, "java/lang/Exception", getErrorStr(GetLastError()));
}
CloseHandle(reinterpret_cast<HANDLE>(pid));
CloseHandle(reinterpret_cast<HANDLE>(tid));
return exitCode;
}
#else
@ -240,15 +245,15 @@ Java_java_lang_Runtime_exec(JNIEnv* e, jclass,
makePipe(e, in);
if(e->ExceptionCheck()) return;
jlong inDescriptor = static_cast<jlong>(in[0]);
e->SetLongArrayRegion(process, 1, 1, &inDescriptor);
e->SetLongArrayRegion(process, 2, 1, &inDescriptor);
makePipe(e, out);
if(e->ExceptionCheck()) return;
jlong outDescriptor = static_cast<jlong>(out[1]);
e->SetLongArrayRegion(process, 2, 1, &outDescriptor);
e->SetLongArrayRegion(process, 3, 1, &outDescriptor);
makePipe(e, err);
if(e->ExceptionCheck()) return;
jlong errDescriptor = static_cast<jlong>(err[0]);
e->SetLongArrayRegion(process, 3, 1, &errDescriptor);
e->SetLongArrayRegion(process, 4, 1, &errDescriptor);
makePipe(e, msg);
if(e->ExceptionCheck()) return;
if(fcntl(msg[1], F_SETFD, FD_CLOEXEC) != 0) {
@ -309,7 +314,7 @@ Java_java_lang_Runtime_exec(JNIEnv* e, jclass,
}
extern "C" JNIEXPORT jint JNICALL
Java_java_lang_Runtime_waitFor(JNIEnv*, jclass, jlong pid)
Java_java_lang_Runtime_waitFor(JNIEnv*, jclass, jlong pid, jlong)
{
bool finished = false;
int status;

24
classpath/java/lang/Runtime.java
View File

@ -43,7 +43,7 @@ public class Runtime {
}
}
public Process exec(String command) {
public Process exec(String command) throws IOException {
StringTokenizer t = new StringTokenizer(command);
String[] cmd = new String[t.countTokens()];
for (int i = 0; i < cmd.length; i++)
@ -52,7 +52,7 @@ public class Runtime {
return exec(cmd);
}
public Process exec(final String[] command) {
public Process exec(final String[] command) throws IOException {
final MyProcess[] process = new MyProcess[1];
final Throwable[] exception = new Throwable[1];
@ -61,10 +61,11 @@ public class Runtime {
public void run() {
synchronized (process) {
try {
long[] info = new long[4];
long[] info = new long[5];
exec(command, info);
process[0] = new MyProcess
(info[0], (int) info[1], (int) info[2], (int) info[3]);
(info[0], info[1], (int) info[2], (int) info[3],
(int) info[4]);
} catch (Throwable e) {
exception[0] = e;
} finally {
@ -77,8 +78,9 @@ public class Runtime {
synchronized (p) {
try {
if (p.pid != 0) {
p.exitCode = Runtime.waitFor(p.pid);
p.exitCode = Runtime.waitFor(p.pid, p.tid);
p.pid = 0;
p.tid = 0;
}
} finally {
p.notifyAll();
@ -100,7 +102,11 @@ public class Runtime {
}
if (exception[0] != null) {
throw new RuntimeException(exception[0]);
if (exception[0] instanceof IOException) {
throw new IOException(exception[0]);
} else {
throw new RuntimeException(exception[0]);
}
}
return process[0];
@ -111,7 +117,7 @@ public class Runtime {
private static native void exec(String[] command, long[] process)
throws IOException;
private static native int waitFor(long pid);
private static native int waitFor(long pid, long tid);
private static native void load(String name, boolean mapName);
@ -125,13 +131,15 @@ public class Runtime {
private static class MyProcess extends Process {
private long pid;
private long tid;
private final int in;
private final int out;
private final int err;
private int exitCode;
public MyProcess(long pid, int in, int out, int err) {
public MyProcess(long pid, long tid, int in, int out, int err) {
this.pid = pid;
this.tid = tid;
this.in = in;
this.out = out;
this.err = err;