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#endif
readStreams = [[OFMutableArray alloc] init];
writeStreams = [[OFMutableArray alloc] init];
queue = [[OFMutableArray alloc] init];
queueInfo = [[OFMutableArray alloc] init];
#ifdef OF_HAVE_POLL
fds = [[OFDataArray alloc] initWithItemSize:
FDs = [[OFDataArray alloc] initWithItemSize:
sizeof(struct pollfd)];
fdToStream = [[OFMutableDictionary alloc] init];
FDToStream = [[OFMutableDictionary alloc] init];
#else
FD_ZERO(&readfds);
FD_ZERO(&writefds);
#endif
#ifndef _WIN32
if (pipe(cancelFd))
if (pipe(cancelFD))
@throw [OFInitializationFailedException
newWithClass: isa];
#else
/* Make sure WSAStartup has been called */
[OFTCPSocket class];
cancelFd[0] = socket(AF_INET, SOCK_DGRAM, 0);
cancelFd[1] = socket(AF_INET, SOCK_DGRAM, 0);
cancelFD[0] = socket(AF_INET, SOCK_DGRAM, 0);
cancelFD[1] = socket(AF_INET, SOCK_DGRAM, 0);
if (cancelFd[0] == INVALID_SOCKET ||
cancelFd[1] == INVALID_SOCKET)
if (cancelFD[0] == INVALID_SOCKET ||
cancelFD[1] == INVALID_SOCKET)
@throw [OFInitializationFailedException
newWithClass: isa];
cancelAddr.sin_family = AF_INET;
cancelAddr.sin_port = 0;
cancelAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
cancelAddr2 = cancelAddr;
if (bind(cancelFd[0], (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) || bind(cancelFd[1],
if (bind(cancelFD[0], (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) || bind(cancelFD[1],
(struct sockaddr*)&cancelAddr2, sizeof(cancelAddr2)))
@throw [OFInitializationFailedException
newWithClass: isa];
cancelAddrLen = sizeof(cancelAddr);
if (getsockname(cancelFd[0], (struct sockaddr*)&cancelAddr,
if (getsockname(cancelFD[0], (struct sockaddr*)&cancelAddr,
&cancelAddrLen))
@throw [OFInitializationFailedException
newWithClass: isa];
#endif
#ifdef OF_HAVE_POLL
p.fd = cancelFd[0];
[fds addItem: &p];
p.fd = cancelFD[0];
[FDs addItem: &p];
#else
FD_SET(cancelFd[0], &readfds);
nfds = cancelFd[0] + 1;
FD_SET(cancelFD[0], &readFDs);
nFDs = cancelFD[0] + 1;
#endif
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
close(cancelFd[0]);
close(cancelFd[1]);
close(cancelFD[0]);
close(cancelFD[1]);
[(id)delegate release];
[readStreams release];
[writeStreams release];
[queue release];
[queueInfo release];
#ifdef OF_HAVE_POLL
[fdToStream release];
[fds release];
[FDToStream release];
[FDs release];
#endif
[super dealloc];
}
- (id <OFStreamObserverDelegate>)delegate
{
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delegate = delegate_;
}
#ifdef OF_HAVE_POLL
- (void)_addStream: (OFStream*)stream
withEvents: (short)events
{
struct pollfd *fds_c = [fds cArray];
size_t i, count = [fds count];
int fd = [stream fileDescriptor];
struct pollfd *FDsCArray = [FDs cArray];
size_t i, count = [FDs count];
int fileDescriptor = [stream fileDescriptor];
BOOL found = NO;
for (i = 0; i < count; i++) {
if (fds_c[i].fd == fd) {
fds_c[i].events |= events;
if (FDsCArray[i].fd == fileDescriptor) {
FDsCArray[i].events |= events;
found = YES;
}
}
if (!found) {
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
struct pollfd p = { fd, events | POLLERR, 0 };
[fds addItem: &p];
[fdToStream setObject: stream
forKey: [OFNumber numberWithInt: fd]];
struct pollfd p = { fileDescriptor, events | POLLERR, 0 };
[FDs addItem: &p];
[FDToStream setObject: stream
forKey: [OFNumber numberWithInt:
fileDescriptor]];
[pool release];
}
}
- (void)_removeStream: (OFStream*)stream
withEvents: (short)events
{
struct pollfd *fds_c = [fds cArray];
size_t i, nfds = [fds count];
int fd = [stream fileDescriptor];
struct pollfd *FDsCArray = [FDs cArray];
size_t i, nFDs = [FDs count];
int fileDescriptor = [stream fileDescriptor];
for (i = 0; i < nfds; i++) {
if (fds_c[i].fd == fd) {
for (i = 0; i < nFDs; i++) {
if (FDsCArray[i].fd == fileDescriptor) {
OFAutoreleasePool *pool;
fds_c[i].events &= ~events;
FDsCArray[i].events &= ~events;
if ((fds_c[i].events & ~POLLERR) != 0)
if ((FDsCArray[i].events & ~POLLERR) != 0)
return;
pool = [[OFAutoreleasePool alloc] init];
[fds removeItemAtIndex: i];
[fdToStream removeObjectForKey:
[OFNumber numberWithInt: fd]];
[FDs removeItemAtIndex: i];
[FDToStream removeObjectForKey:
[OFNumber numberWithInt: fileDescriptor]];
[pool release];
}
}
}
#else
- (void)_addStream: (OFStream*)stream
withFDSet: (fd_set*)fdset
withFDSet: (fd_set*)FDSet
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
int fd = [stream fileDescriptor];
int fileDescriptor = [stream fileDescriptor];
FD_SET(fd, fdset);
FD_SET(fd, &exceptfds);
FD_SET(fileDescriptor, FDSet);
FD_SET(fileDescriptor, &exceptFDs);
if (fd >= nfds)
nfds = fd + 1;
[pool release];
}
- (void)_removeStream: (OFStream*)stream
withFDSet: (fd_set*)fdset
otherFDSet: (fd_set*)other_fdset
withFDSet: (fd_set*)FDSet
otherFDSet: (fd_set*)otherFDSet
{
int fd = [stream fileDescriptor];
int fileDescriptor = [stream fileDescriptor];
FD_CLR(fd, fdset);
FD_CLR(fileDescriptor, FDSet);
if (!FD_ISSET(fd, other_fdset))
FD_CLR(fd, &exceptfds);
if (!FD_ISSET(fileDescriptor, otherFDSet))
FD_CLR(fileDescriptor, &exceptfds);
}
#endif
- (void)addStreamToObserveForReading: (OFStream*)stream
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFNumber *qi = [OFNumber numberWithInt: QUEUE_ADD | QUEUE_READ];
@synchronized (queue) {
[queue addObject: stream];
[queueInfo addObject: qi];
}
#ifndef _WIN32
assert(write(cancelFd[1], "", 1) > 0);
assert(write(cancelFD[1], "", 1) > 0);
#else
assert(sendto(cancelFd[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
assert(sendto(cancelFD[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) > 0);
#endif
[pool release];
}
- (void)addStreamToObserveForWriting: (OFStream*)stream
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFNumber *qi = [OFNumber numberWithInt: QUEUE_ADD | QUEUE_WRITE];
@synchronized (queue) {
[queue addObject: stream];
[queueInfo addObject: qi];
}
#ifndef _WIN32
assert(write(cancelFd[1], "", 1) > 0);
assert(write(cancelFD[1], "", 1) > 0);
#else
assert(sendto(cancelFd[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
assert(sendto(cancelFD[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) > 0);
#endif
[pool release];
}
- (void)removeStreamToObserveForReading: (OFStream*)stream
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFNumber *qi = [OFNumber numberWithInt: QUEUE_REMOVE | QUEUE_READ];
@synchronized (queue) {
[queue addObject: stream];
[queueInfo addObject: qi];
}
#ifndef _WIN32
assert(write(cancelFd[1], "", 1) > 0);
assert(write(cancelFD[1], "", 1) > 0);
#else
assert(sendto(cancelFd[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
assert(sendto(cancelFD[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) > 0);
#endif
[pool release];
}
- (void)removeStreamToObserveForWriting: (OFStream*)stream
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFNumber *qi = [OFNumber numberWithInt: QUEUE_REMOVE | QUEUE_WRITE];
@synchronized (queue) {
[queue addObject: stream];
[queueInfo addObject: qi];
}
#ifndef _WIN32
assert(write(cancelFd[1], "", 1) > 0);
assert(write(cancelFD[1], "", 1) > 0);
#else
assert(sendto(cancelFd[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
assert(sendto(cancelFD[1], "", 1, 0, (struct sockaddr*)&cancelAddr,
sizeof(cancelAddr)) > 0);
#endif
[pool release];
}
- (void)_processQueue
{
@synchronized (queue) {
OFStream **queue_c = [queue cArray];
OFNumber **queueInfo_c = [queueInfo cArray];
OFStream **queueCArray = [queue cArray];
OFNumber **queueInfoCArray = [queueInfo cArray];
size_t i, count = [queue count];
for (i = 0; i < count; i++) {
switch ([queueInfo_c[i] intValue]) {
switch ([queueInfoCArray[i] intValue]) {
case QUEUE_ADD | QUEUE_READ:
[readStreams addObject: queue_c[i]];
[readStreams addObject: queueCArray[i]];
#ifdef OF_HAVE_POLL
[self _addStream: queue_c[i]
[self _addStream: queueCArray[i]
withEvents: POLLIN];
#else
[self _addStream: queue_c[i]
withFDSet: &readfds];
[self _addStream: queueCArray[i]
withFDSet: &readFDs];
#endif
break;
case QUEUE_ADD | QUEUE_WRITE:
[writeStreams addObject: queue_c[i]];
[writeStreams addObject: queueCArray[i]];
#ifdef OF_HAVE_POLL
[self _addStream: queue_c[i]
[self _addStream: queueCArray[i]
withEvents: POLLOUT];
#else
[self _addStream: queue_c[i]
withFDSet: &writefds];
[self _addStream: queueCArray[i]
withFDSet: &writeFDs];
#endif
break;
case QUEUE_REMOVE | QUEUE_READ:
[readStreams removeObjectIdenticalTo:
queue_c[i]];
queueCArray[i]];
#ifdef OF_HAVE_POLL
[self _removeStream: queue_c[i]
[self _removeStream: queueCArray[i]
withEvents: POLLIN];
#else
[self _removeStream: queue_c[i]
withFDSet: &readfds
otherFDSet: &writefds];
[self _removeStream: queueCArray[i]
withFDSet: &readFDs
otherFDSet: &writeFDs];
#endif
break;
case QUEUE_REMOVE | QUEUE_WRITE:
[writeStreams removeObjectIdenticalTo:
queue_c[i]];
queueCArray[i]];
#ifdef OF_HAVE_POLL
[self _removeStream: queue_c[i]
[self _removeStream: queueCArray[i]
withEvents: POLLOUT];
#else
[self _removeStream: queue_c[i]
withFDSet: &writefds
otherFDSet: &readfds];
[self _removeStream: queueCArray[i]
withFDSet: &writeFDs
otherFDSet: &readFDs];
#endif
break;
default:
assert(0);
}
}
|
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* As long as we have data in the cache for any stream, we don't want
* to block.
*/
if (foundInCache)
return YES;
#ifdef OF_HAVE_POLL
fds_c = [fds cArray];
nfds = [fds count];
FDsCArray = [FDs cArray];
nFDs = [FDs count];
# ifdef OPEN_MAX
if (nfds > OPEN_MAX)
if (nFDs > OPEN_MAX)
@throw [OFOutOfRangeException newWithClass: isa];
# endif
if (poll(fds_c, (nfds_t)nfds, timeout) < 1)
if (poll(FDsCArray, (nfds_t)nFDs, timeout) < 1)
return NO;
for (i = 0; i < nfds; i++) {
for (i = 0; i < nFDs; i++) {
OFNumber *num;
OFStream *stream;
if (fds_c[i].revents & POLLIN) {
if (fds_c[i].fd == cancelFd[0]) {
char buf;
if (FDsCArray[i].revents & POLLIN) {
if (FDsCArray[i].fd == cancelFD[0]) {
char buffer;
assert(read(cancelFd[0], &buf, 1) > 0);
fds_c[i].revents = 0;
assert(read(cancelFD[0], &buffer, 1) > 0);
FDsCArray[i].revents = 0;
continue;
}
num = [OFNumber numberWithInt: fds_c[i].fd];
stream = [fdToStream objectForKey: num];
num = [OFNumber numberWithInt: FDsCArray[i].fd];
stream = [FDToStream objectForKey: num];
[delegate streamDidBecomeReadyForReading: stream];
[pool releaseObjects];
}
if (fds_c[i].revents & POLLOUT) {
num = [OFNumber numberWithInt: fds_c[i].fd];
stream = [fdToStream objectForKey: num];
if (FDsCArray[i].revents & POLLOUT) {
num = [OFNumber numberWithInt: FDsCArray[i].fd];
stream = [FDToStream objectForKey: num];
[delegate streamDidBecomeReadyForReading: stream];
[pool releaseObjects];
}
if (fds_c[i].revents & POLLERR) {
num = [OFNumber numberWithInt: fds_c[i].fd];
stream = [fdToStream objectForKey: num];
if (FDsCArray[i].revents & POLLERR) {
num = [OFNumber numberWithInt: FDsCArray[i].fd];
stream = [FDToStream objectForKey: num];
[delegate streamDidReceiveException: stream];
[pool releaseObjects];
}
fds_c[i].revents = 0;
FDsCArray[i].revents = 0;
}
#else
# ifdef FD_COPY
FD_COPY(&readfds, &readfds_);
FD_COPY(&writefds, &writefds_);
FD_COPY(&exceptfds, &exceptfds_);
FD_COPY(&readFDs, &readFDs_);
FD_COPY(&writeFDs, &writeFDs_);
FD_COPY(&exceptFDs, &exceptFDs_);
# else
readfds_ = readfds;
writefds_ = writefds;
exceptfds_ = exceptfds;
readFDs_ = readFDs;
writeFDs_ = writeFDs;
exceptFDs_ = exceptFDs;
# endif
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
time.tv_sec = timeout / 1000;
time.tv_usec = (timeout % 1000) * 1000;
if (select(nfds, &readfds_, &writefds_, &exceptfds_,
(timeout != -1 ? &tv : NULL)) < 1)
if (select(nFDs, &readFDs_, &writeFDs_, &exceptFDs_,
(timeout != -1 ? &time : NULL)) < 1)
return NO;
if (FD_ISSET(cancelFd[0], &readfds_)) {
char buf;
if (FD_ISSET(cancelFD[0], &readFDs_)) {
char buffer;
#ifndef _WIN32
assert(read(cancelFd[0], &buf, 1) > 0);
assert(read(cancelFD[0], &buffer, 1) > 0);
#else
assert(recvfrom(cancelFd[0], &buf, 1, 0, NULL, NULL) > 0);
assert(recvfrom(cancelFD[0], &buffer, 1, 0, NULL, NULL) > 0);
#endif
}
for (i = 0; i < count; i++) {
int fd = [cArray[i] fileDescriptor];
int fileDescriptor = [cArray[i] fileDescriptor];
if (FD_ISSET(fd, &readfds_)) {
if (FD_ISSET(fileDescriptor, &readFDs_)) {
[delegate streamDidBecomeReadyForReading: cArray[i]];
[pool releaseObjects];
}
if (FD_ISSET(fd, &exceptfds_)) {
if (FD_ISSET(fileDescriptor, &exceptFDs_)) {
[delegate streamDidReceiveException: cArray[i]];
[pool releaseObjects];
/*
* Prevent calling it twice in case the fd is in both
* Prevent calling it twice in case the FD is in both
* sets.
*/
FD_CLR(fd, &exceptfds_);
FD_CLR(fileDescriptor, &exceptFDs_);
}
}
cArray = [writeStreams cArray];
count = [writeStreams count];
for (i = 0; i < count; i++) {
int fd = [cArray[i] fileDescriptor];
int fileDescriptor = [cArray[i] fileDescriptor];
if (FD_ISSET(fd, &writefds_)) {
if (FD_ISSET(fileDescriptor, &writeFDs_)) {
[delegate streamDidBecomeReadyForWriting: cArray[i]];
[pool releaseObjects];
}
if (FD_ISSET(fd, &exceptfds_)) {
if (FD_ISSET(fileDescriptor, &exceptFDs_)) {
[delegate streamDidReceiveException: cArray[i]];
[pool releaseObjects];
}
}
#endif
[pool release];
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