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fix several win32 bugs in SocketSelector

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This commit is contained in:
Joel Dice 2007-10-26 18:04:55 -06:00
parent 85012ba5b0
commit 4b92017ea9
2 changed files with 65 additions and 83 deletions
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76
classpath/java-nio.cpp
View File

@ -15,9 +15,6 @@
# include <errno.h>
# include <netdb.h>
# include <sys/select.h>
# undef JNIEXPORT
# define JNIEXPORT __attribute__ ((visibility("default")))
#endif
#define java_nio_channels_SelectionKey_OP_READ 1L
@ -492,19 +489,6 @@ Java_java_nio_channels_SocketSelector_natWakeup(JNIEnv *e, jclass, jlong state)
}
}
extern "C" JNIEXPORT void JNICALL
Java_java_nio_channels_SocketSelector_natClearWoken(JNIEnv *e, jclass, jlong state)
{
SelectorState* s = reinterpret_cast<SelectorState*>(state);
if (s->control.connected() and s->control.reader() >= 0) {
char c;
int r = ::doRead(s->control.reader(), &c, 1);
if (r != 1) {
throwIOException(e);
}
}
}
extern "C" JNIEXPORT void JNICALL
Java_java_nio_channels_SocketSelector_natClose(JNIEnv *, jclass, jlong state)
{
@ -562,8 +546,68 @@ Java_java_nio_channels_SocketSelector_natDoSocketSelect(JNIEnv *e, jclass,
FD_SET(static_cast<unsigned>(socket), &(s->read));
if (max < socket) max = socket;
}
#ifdef WIN32
if (s->control.listener() >= 0) {
int socket = s->control.listener();
FD_SET(static_cast<unsigned>(socket), &(s->read));
if (max < socket) max = socket;
}
if (not s->control.connected()) {
int socket = s->control.writer();
FD_SET(static_cast<unsigned>(socket), &(s->write));
FD_SET(static_cast<unsigned>(socket), &(s->except));
if (max < socket) max = socket;
}
#endif
timeval time = { interval / 1000, (interval % 1000) * 1000 };
int r = ::select(max + 1, &(s->read), &(s->write), &(s->except), &time);
#ifdef WIN32
if (FD_ISSET(s->control.writer(), &(s->write)) or
FD_ISSET(s->control.writer(), &(s->except)))
{
unsigned socket = s->control.writer();
FD_CLR(socket, &(s->write));
FD_CLR(socket, &(s->except));
int error;
socklen_t size = sizeof(int);
int r = getsockopt(socket, SOL_SOCKET, SO_ERROR,
reinterpret_cast<char*>(&error), &size);
if (r != 0 or size != sizeof(int) or error != 0) {
throwIOException(e);
}
s->control.setConnected(true);
}
if (s->control.listener() >= 0 and
FD_ISSET(s->control.listener(), &(s->read)))
{
FD_CLR(static_cast<unsigned>(s->control.listener()), &(s->read));
s->control.setReader(::doAccept(e, s->control.listener()));
s->control.setListener(-1);
}
#endif
if (s->control.reader() >= 0 and
FD_ISSET(s->control.reader(), &(s->read)))
{
FD_CLR(static_cast<unsigned>(s->control.reader()), &(s->read));
char c;
int r = 1;
while (r == 1) {
r = ::doRead(s->control.reader(), &c, 1);
}
if (r < 0 and not eagain()) {
throwIOException(e);
}
}
if (r < 0) {
if (errno != EINTR) {
throwIOException(e);

72
classpath/java/nio/channels/SocketSelector.java
View File

@ -4,13 +4,13 @@ import java.io.IOException;
import java.util.Iterator;
class SocketSelector extends Selector {
private static final boolean isWin32;
private static final boolean IsWin32;
protected long state;
protected final Object lock = new Object();
protected boolean woken = false;
static {
isWin32 = false;
IsWin32 = false;
}
public SocketSelector() {
@ -35,7 +35,6 @@ class SocketSelector extends Selector {
synchronized (lock) {
if (woken) {
woken = false;
natClearWoken(state);
return true;
} else {
return false;
@ -44,93 +43,33 @@ class SocketSelector extends Selector {
}
public synchronized void select(long interval) throws IOException {
if (isWin32) {
win32Select(interval);
} else {
posixSelect(interval);
}
}
private void win32Select(long interval) { }
private void posixSelect(long interval) throws IOException {
selectedKeys.clear();
if (clearWoken()) return;
int max=0;
for (Iterator<SelectionKey> it = keys.iterator();
it.hasNext();) {
it.hasNext();)
{
SelectionKey key = it.next();
SocketChannel c = (SocketChannel)key.channel();
int socket = c.socketFD();
if (! c.isOpen()) {
natSelectClearAll(socket, state);
// Equivalent to:
//
// FD_CLR(socket, &(s->read));
// FD_CLR(socket, &(s->write));
// FD_CLR(socket, &(s->except));
it.remove();
continue;
}
key.readyOps(0);
max = natSelectUpdateInterestSet(socket, key.interestOps(), state, max);
// Equivalent to:
//
// if (interest & (SelectionKey::OP_READ | SelectionKey::OP_ACCEPT)) {
// FD_SET(socket, &(s->read));
// if (max < socket) max = socket;
// } else {
// FD_CLR(socket, &(s->read));
// }
//
// if (interest & SelectionKey::OP_WRITE) {
// FD_SET(socket, &(s->write));
// if (max < socket) max = socket;
// } else {
// FD_CLR(socket, &(s->write));
// }
}
int r = natDoSocketSelect(state, max, interval);
// Equivalent to:
//
// if (s->control.reader() >= 0) {
// unsigned socket = s->control.reader();
// FD_SET(socket, &(s->read));
// if (max < socket) max = socket;
// }
// timeval time = { interval / 1000, (interval % 1000) * 1000 };
// int r = ::select(max + 1, &(s->read), &(s->write), &(s->except), &time);
// if (r < 0) {
// if (errno != EINTR) {
// throw new IOException(errorString());
// }
// }
if (r > 0) {
for (SelectionKey key : keys) {
SocketChannel c = (SocketChannel)key.channel();
int socket = c.socketFD();
int ready = natUpdateReadySet(socket, key.interestOps(), state);
// Equivalent to:
//
// jint ready = 0;
//
// if (FD_ISSET(c->socket, &(s->read))) {
// if (interest & SelectionKey::OP_READ) {
// ready |= SelectionKey::OP_READ;
// }
//
// if (interest & SelectionKey::OP_ACCEPT) {
// ready |= SelectionKey::OP_ACCEPT;
// }
// }
//
// if ((interest & SelectionKey::OP_WRITE)
// and FD_ISSET(c->socket, &(s->write))) {
// ready |= SelectionKey::OP_WRITE;
// }
key.readyOps(ready);
if (ready != 0) {
selectedKeys.add(key);
@ -146,7 +85,6 @@ class SocketSelector extends Selector {
private static native long natInit();
private static native void natWakeup(long state);
private static native void natClearWoken(long state);
private static native void natClose(long state);
private static native void natSelectClearAll(int socket, long state);
private static native int natSelectUpdateInterestSet(int socket,