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implement blocking mode for SocketChannel and ServerSocketChannel

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This commit is contained in:
Joel Dice
2009-08-03 08:58:56 -06:00
parent c2e9b3ed76
commit 80d4385cb8
3 changed files with 45 additions and 19 deletions
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35
classpath/java-nio.cpp
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@ -154,17 +154,19 @@ eagain()
}
bool
makeNonblocking(JNIEnv* e, int d)
setBlocking(JNIEnv* e, int d, bool blocking)
{
#ifdef WIN32
u_long a = 1;
u_long a = (blocking ? 0 : 1);
int r = ioctlsocket(d, FIONBIO, &a);
if (r != 0) {
throwIOException(e);
return false;
}
#else
int r = fcntl(d, F_SETFL, fcntl(d, F_GETFL) | O_NONBLOCK);
int r = fcntl(d, F_SETFL, (blocking
? (fcntl(d, F_GETFL) & (~O_NONBLOCK))
: (fcntl(d, F_GETFL) | O_NONBLOCK)));
if (r < 0) {
throwIOException(e);
return false;
@ -231,7 +233,6 @@ doAccept(JNIEnv* e, int s)
socklen_t length = sizeof(address);
int r = ::accept(s, &address, &length);
if (r >= 0) {
makeNonblocking(e, r);
return r;
} else {
throwIOException(e);
@ -260,7 +261,7 @@ doWrite(int fd, const void* buffer, size_t count)
}
int
makeSocket(JNIEnv* e, bool blocking = false)
makeSocket(JNIEnv* e)
{
#ifdef WIN32
static bool wsaInitialized = false;
@ -279,8 +280,6 @@ makeSocket(JNIEnv* e, bool blocking = false)
return s;
}
if (not blocking) makeNonblocking(e, s);
return s;
}
@ -311,6 +310,15 @@ Java_java_nio_channels_ServerSocketChannel_natDoListen(JNIEnv *e,
return s;
}
extern "C" JNIEXPORT void JNICALL
Java_java_nio_channels_SocketChannel_configureBlocking(JNIEnv *e,
jclass,
jint socket,
jboolean blocking)
{
setBlocking(e, socket, blocking);
}
extern "C" JNIEXPORT void JNICALL
Java_java_nio_channels_SocketChannel_natSetTcpNoDelay(JNIEnv *e,
jclass,
@ -325,11 +333,14 @@ Java_java_nio_channels_SocketChannel_natDoConnect(JNIEnv *e,
jclass,
jstring host,
jint port,
jboolean blocking,
jbooleanArray retVal)
{
int s = makeSocket(e);
if (e->ExceptionOccurred()) return 0;
setBlocking(e, s, blocking);
sockaddr_in address;
init(e, &address, host, port);
if (e->ExceptionOccurred()) return 0;
@ -425,7 +436,8 @@ class Pipe {
address.sin_family = AF_INET;
address.sin_port = 0;
address.sin_addr.s_addr = inet_addr("127.0.0.1"); //INADDR_LOOPBACK;
listener_ = makeSocket(e, false);
listener_ = makeSocket(e);
setBlocking(e, listener_, false);
::doListen(e, listener_, &address);
socklen_t length = sizeof(sockaddr_in);
@ -435,7 +447,8 @@ class Pipe {
throwIOException(e);
}
writer_ = makeSocket(e, true);
writer_ = makeSocket(e);
setBlocking(e, writer_, true);
connected_ = ::doConnect(e, writer_, &address);
}
@ -485,8 +498,8 @@ class Pipe {
return;
}
if (makeNonblocking(e, pipe[0])) {
makeNonblocking(e, pipe[1]);
if (setBlocking(e, pipe[0], false)) {
setBlocking(e, pipe[1], false);
}
}