| -rw-r--r-- | x11/ipc/client/ocopclient.cpp | 129 | ||||
| -rw-r--r-- | x11/ipc/client/ocopclient.h | 56 | ||||
| -rw-r--r-- | x11/ipc/server/ocopserver.cpp | 1 |
3 files changed, 186 insertions, 0 deletions
diff --git a/x11/ipc/client/ocopclient.cpp b/x11/ipc/client/ocopclient.cpp new file mode 100644 index 0000000..1c25271 --- a/dev/null +++ b/x11/ipc/client/ocopclient.cpp @@ -0,0 +1,129 @@ +#include <errno.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/socket.h> +#include <sys/un.h> + + +#include <qfile.h> +#include <qtimer.h> + +#include "../common/ocoppacket.h" + +#include "ocopclient.h" + +OCOPClient::OCOPClient( const QString& path, QObject* obj ) + : QObject( obj ) +{ + init(QFile::encodeName(path) ); +} +OCOPClient::~OCOPClient() { + close( m_socket ); +} +void OCOPClient::init( const QCString& str ) { + struct sockaddr_un unix_adr; + if ( (m_socket = socket(PF_UNIX, SOCK_STREAM, 0) ) < 0 ) { + qWarning("could not socket"); + QTimer::singleShot(400, this,SLOT(init() ) ); + return; + } + memset(&unix_adr, 0, sizeof(unix_adr ) ); + unix_adr.sun_family = AF_UNIX; + sprintf(unix_adr.sun_path,"%s/.opie.cop", getenv("HOME") ); + int length = sizeof(unix_adr.sun_family) + strlen(unix_adr.sun_path); + + if ( ::connect(m_socket, (struct sockaddr*)&unix_adr, length ) < 0 ) { + qWarning("could not connect %d", errno ); + close( m_socket ); + QTimer::singleShot(400, this, SLOT(init() ) ); + return; + } + m_notify = new QSocketNotifier(m_socket, QSocketNotifier::Read, this ); + connect( m_notify, SIGNAL(activated(int) ), + this, SLOT(newData() ) ); +} +/** + * new data + * read the header check magic number + * and maybe read body + */ +void OCOPClient::newData() { + OCOPPacket pack = packet(); + if ( pack.channel().isEmpty() ) + return; + + switch( pack.type() ) { + case OCOPPacket::Register: + case OCOPPacket::Unregister: + case OCOPPacket::Method: + case OCOPPacket::RegisterChannel: + case OCOPPacket::UnregisterChannel: + case OCOPPacket::Return: + case OCOPPacket::Signal: + /* is Registered should be handled sync */ + case OCOPPacket::isRegistered: + break; + /* emit the signal */ + case OCOPPacket::Call: + emit called( pack.channel(), pack.header(), pack.content() ); + break; + } +} +OCOPPacket OCOPClient::packet() { + QCString chan; + QCString func; + QByteArray ar; + OCOPHead head; + memset(&head, 0, sizeof(head) ); + read(m_socket, &head, sizeof(head) ); + if ( head.magic == 47 ) { + read(m_socket, chan.data(), head.chlen ); + read(m_socket, func.data(), head.funclen ); + read(m_socket, ar.data(), head.datalen ); + } + OCOPPacket pack(head.type, chan, func, data ); + return pack; +} +/* + * we've blocking IO here on these sockets + * so we send and go on read + * this will be blocked + */ +bool OCOPClient::isRegistered( const QCString& chan ) { + /* should I disconnect the socket notfier? */ + OCOPPacket packe(OCOPPacket::IsRegistered, chan ); + OCOPHead head = packe.head(); + write(m_socket, &head, sizeof(head) ); + + /* block */ + OCOPPacket pack = packet(); + + /* connect here again */ + if ( pack.channel() == chan ) { + QCString func = pack.header(); + if (func[0] == 1 ) + return; + } + + return false; +}; +void OCOPClient::send( const QCString& chan, const QCString& fu, const QByteArray& arr ) { + OCOPPacket pack(OCOPPacket::Call, chan, fu, arr ); + call( pack ); +} +void OCOPClient::addChannel(const QCString& channet) { + OCOPPacket pack(OCOPPacket::RegisterChannel, channel ); + call( pack ); +} +void OCOPClient::delChannel(const QCString& chan ) { + OCOPPacket pack(OCOPPacket::UnregisterChannel, channel ); + call( pack ); +} +void OCOPPacket::call( const OCOPPacket& pack ) { + OCOPHead head = pack.head(); + write(m_socket, &head, sizeof(head) ); + write(m_socket, pack.channel().data(), pack.channel().size() ); + write(m_socket, pack.header().data(), pack.header().size() ); + write(m_socket, pack.content().data(), pack.content().size() ); +} diff --git a/x11/ipc/client/ocopclient.h b/x11/ipc/client/ocopclient.h new file mode 100644 index 0000000..5300132 --- a/dev/null +++ b/x11/ipc/client/ocopclient.h @@ -0,0 +1,56 @@ +#ifndef OPIE_OCOP_CLIENT_H +#define OPIE_OCOP_CLIENT_H + + +#include <qobject.h> +#include <qcstring.h> +#include <qmap.h> +#include <qsignal.h> +#include <qstring.h> +#include <qsocketnotifier.h> + + +/** + * This is the OCOP client + * It currently only supports + * asking if a Channel is registered, + * calling and receiving calls + */ +class OCOPPacket; +class OCOPClient : public QObject{ + Q_OBJECT +public: + + /** + * Occasionally I decide to start a Server from here + */ + OCOPClient(const QString& pathToServer = QString::null, QObject* obj = 0l); + ~OCOPClient(); + + bool isRegistered( const QCString& )const; + void send( const QCString& chan, const QCString&, const QByteArray& msg ); + + /** + * add a channel and does connect to a signal + * callback is the object + * slot is the SLOT() + */ + void addChannel( const QCString& channel ); + void delChannel( const QCString& channel ); +/* no direct signals due the design */ +signals: + void called(const QCString&, const QCString&, const QByteArray ); +private slots: + void init(const QCString& pa); + void newData(); +private: + OCOPPacket packet(); + void call( const OCOPPacket& ); + + QSocketNotifier* m_notify; + int m_socket; +private slots: + +}; + +#endif diff --git a/x11/ipc/server/ocopserver.cpp b/x11/ipc/server/ocopserver.cpp index 3df574b..e76657e 100644 --- a/x11/ipc/server/ocopserver.cpp +++ b/x11/ipc/server/ocopserver.cpp @@ -1,383 +1,384 @@ #include <errno.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/socket.h> #include <sys/un.h> #include <qcstring.h> #include <qtimer.h> #include "ocopserver.h" OCopServer::OCopServer() : QObject() { setName( "ocopserver"); /* * init the server */ init(); initSocket(); } OCopServer::~OCopServer() { // socket notifiers should be deleted close(m_serverfd ); } void OCopServer::init() { /* * we set SIGPIPE to SIG_IGN * to get EPIPE on reads ;) */ qWarning("SIGPIPE to be ignored"); signal(SIGPIPE, SIG_IGN ); /* * initialize some variables */ m_server = 0l; m_serverError = 0l; } /** * here we will init our server * socket and bind and do the listen */ void OCopServer::initSocket() { /* get the home dir */ QCString home( getenv("HOME") ); QCString path( home + "/.opie.cop"); if ( ( m_serverfd = socket( PF_UNIX, SOCK_STREAM, 0 ) ) == -1 ) { qWarning("failed to create server socket"); /* try again later */ QTimer::singleShot( 400, this, SLOT(initSocket() ) ); return; } qWarning( "unlinking file %s", path.data() ); /* unlink previous sockets */ unlink( path.data() ); struct sockaddr_un m_address; memset(&m_address, 0, sizeof(m_address ) ); m_address.sun_family = AF_UNIX; /* unix domain socket */ strcpy(m_address.sun_path, path.data() ); m_adrlaenge = sizeof(m_address.sun_family) + strlen(m_address.sun_path ); /* cast to make it a (sockadr*) */ if (bind(m_serverfd, (struct sockaddr*)&m_address, m_adrlaenge ) == -1 ) { qWarning("Server could not bind try again"); close(m_serverfd); QTimer::singleShot(400, this, SLOT(initSocket() ) ); return; } /* tell the kernel that we're listening and accepting * 5 pending connections */ if (listen(m_serverfd, 5) == -1 ) { qWarning("could not listen"); close(m_serverfd ); QTimer::singleShot(400, this, SLOT(initSocket() ) ); return; } /* * now we will create two QSocketNotifier * which will us notify on reads * and errors * we do this because they integrate * nicely into the QApplication eventloop */ m_server = new QSocketNotifier(m_serverfd, QSocketNotifier::Read, this ); connect( m_server, SIGNAL(activated(int) ), this, SLOT(newOnServer() ) ); m_serverError = new QSocketNotifier( m_serverfd, QSocketNotifier::Exception, this); connect(m_serverError, SIGNAL(activated(int) ), this, SLOT(errorOnServer() ) ); qWarning("done with registering"); } /** * we got the possibility to read * on the server * this is mostly due a connect * on a client side * we will accept it * add it to our list */ void OCopServer::newOnServer() { int fd = accept(); if ( fd < 0 ) return; /* * we got a successfull new connection * be happy * set SocketNotifier * connect it * and a OCOPClient */ qWarning("Heureka new connection %d", fd ); registerClient( fd ); } int OCopServer::accept() { /* * accept it * the socket is currently blocking IIRC */ return ::accept( m_serverfd, (struct sockaddr*)&m_address, &m_adrlaenge ); } void OCopServer::newOnClient( int fd ) { int bug[4096]; //qWarning("new stuff for client on fd %d", fd ); errno = 0; OCOPHead head; memset(&head, 0, sizeof(head) ); int rea = ::read(fd, &head, sizeof(head) ); //qWarning("read %d %d", rea, errno); /* * I should get EPIPE but nothing like this happens * so if rea == 0 and we were signaled by the notifier * we close it and drop the clients... */ if ( rea <= 0 ) { deregisterClient( fd ); return; } /* * OCOPHead */ qWarning("data %s %d", bug, rea ); /* * Check the magic * if chcked read till EOF if magic does not match * otherwise do read * channel * func * data into mem * and then send the OCOPPacket * */ if (head.magic == 47 ) { qWarning("magic match"); QCString channel( head.chlen+1 ); QCString func( head.funclen+1 ); QByteArray data ( head.datalen ); /* * we do not check for errors */ int s = read(fd, channel.data(), head.chlen ); s = read(fd, func.data(), head.funclen ); s = read(fd, data.data(), head.datalen ); /* debug output */ qWarning("channel %s %d", channel.data(), head.chlen ); qWarning("func %s %d", func.data(), head.funclen ); /* debug end */ /* * now that we got the complete body * we need to make a package * and then we need to send it to clients * making a package is done here * dispatching it not */ OCOPPacket packet( head.type, channel, func, data ); dispatch( packet, fd ); }else{ qWarning("magic does not match"); qWarning("magic %d", head.magic ); } } void OCopServer::registerClient( int fd ) { if (m_clients.contains(fd) ) return; QSocketNotifier* notify = new QSocketNotifier(fd, QSocketNotifier::Read, this ); connect(notify, SIGNAL(activated(int) ), this, SLOT(newOnClient(int) ) ); OCOPClient client; client.fd = fd; client.notify = notify; m_clients.insert( client.fd, client ); qWarning("clients are up to %d", m_clients.count() ); }; void OCopServer::deregisterClient(int fd ) { QMap<int, OCOPClient>::Iterator it = m_clients.find( fd ); if (it != m_clients.end() ) { OCOPClient client = (*it); delete client.notify; m_clients.remove(fd ); close(fd ); /* * TIME_ME * * now delete from all channels * go through all channels * remove the fd from the list * if count becomes 0 remove the channel * otherwise replace QArray<int> */ QMap<QCString, QValueList<int> >::Iterator it; for ( it = m_channels.begin(); it != m_channels.end(); ++it ) { /* * The channel contains this fd */ if ( it.data().contains( fd ) ) { QValueList<int> array = it.data(); /* * remove channel or just replace */ if ( array.count() == 1 ) { /* is the list now invalidatet? */ m_channels.remove( it ); }else{ array.remove( fd ); it = m_channels.replace( it.key(), array ); } } } // off all channels } qWarning("clients are now at %d", m_clients.count() ); }; /** * this function will evaluate * the package and then do the appropriate thins */ void OCopServer::dispatch( const OCOPPacket& packet, int sourceFD ) { qWarning("packet.type() == %d", packet.type() ); switch( packet.type() ) { case OCOPPacket::Register: registerClient(sourceFD ); break; case OCOPPacket::Unregister: deregisterClient(sourceFD ); break; case OCOPPacket::Call: call( packet, sourceFD ); break; /* not implemented */ case OCOPPacket::Method: break; /* nit implemented */ case OCOPPacket::Reply: break; case OCOPPacket::RegisterChannel: addChannel( packet.channel() , sourceFD ); break; case OCOPPacket::UnregisterChannel: delChannel( packet.channel(), sourceFD ); break; /* not implemented */ case OCOPPacket::Return: break; /* not implemented :( */ case OCOPPacket::Signal: break; case OCOPPacket::IsRegistered: isRegistered( packet.channel(), sourceFD ); break; }; } void OCopServer::errorOnServer() { /* * something is wrong on the server socket? * what should we do? * FIXME */ } QStringList OCopServer::channels() { QStringList list; { QMap<QCString, QValueList<int> >::Iterator it; for (it = m_channels.begin(); it != m_channels.end(); ++it ) { list << it.key(); }; } return list; } bool OCopServer::isChannelRegistered( const QCString& chan ) const{ return m_channels.contains( chan ); } void OCopServer::addChannel( const QCString& channel, int fd ) { QMap<QCString, QValueList<int> >::Iterator it; it = m_channels.find( channel ); /* could be empty */ QValueList<int> list = it.data(); list.append( fd ); it = m_channels.replace( channel, list ); }; void OCopServer::delChannel( const QCString& channel, int fd ) { if (!m_channels.contains( channel ) ) return; QMap<QCString, QValueList<int> >::Iterator it; it = m_channels.find( channel ); if ( it.data().contains(fd) ) { QValueList<int> ints = it.data(); if ( ints.count() == 1 ) m_channels.remove( it ); else{ QValueList<int> ints = it.data(); ints.remove( fd ); m_channels.replace( it.key(), ints ); } } } void OCopServer::isRegistered( const QCString& channel, int fd) { OCOPHead head; QCString func(2); memset(&head, 0, sizeof(head ) ); head.magic = 47; head.type = OCOPPacket::IsRegistered; head.chlen = channel.size(); head.funclen = func.size(); head.datalen = 0; if ( isChannelRegistered( channel ) ) { //is registered func[0] = 1; }else{ func[0] = 0; } /** * write the head * and then channel * success/failure inside func */ write(fd, &head, sizeof(head) ); write(fd, channel.data(), channel.size() ); write(fd, func.data(), func.size() ); } QValueList<int> OCopServer::clients( const QCString& channel ) { return m_channels[channel]; } void OCopServer::call( const OCOPPacket& p, int fd ) { QValueList<int> cli = clients( p.channel() ); QValueList<int>::Iterator it; OCOPHead head = p.head(); for (it = cli.begin(); it != cli.end(); ++it ) { write( (*it), &head, sizeof(head ) ); + /* expl. shared! */ write( (*it), p.channel().data(), p.channel().size() ); write( (*it), p.header().data(), p.header().size() ); write( (*it), p.content().data(), p.content().size() ); }; } |