Diffstat (limited to 'library/qcopenvelope_qws.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | library/qcopenvelope_qws.cpp | 66 |
1 files changed, 20 insertions, 46 deletions
diff --git a/library/qcopenvelope_qws.cpp b/library/qcopenvelope_qws.cpp index 81bb0f5..0aac32b 100644 --- a/library/qcopenvelope_qws.cpp +++ b/library/qcopenvelope_qws.cpp @@ -1,173 +1,147 @@ /********************************************************************** ** Copyright (C) 2000-2002 Trolltech AS. All rights reserved. ** ** This file is part of the Qtopia Environment. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact info@trolltech.com if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #ifndef QT_NO_COP #include "qcopenvelope_qws.h" #endif #include "global.h" #include <qbuffer.h> #include <qdatastream.h> #include <qfile.h> #include <unistd.h> #include <errno.h> #include <sys/file.h> #include <sys/types.h> #include <sys/stat.h> #include <time.h> #ifndef QT_NO_COP /*! \class QCopEnvelope qcopenvelope_qws.h \brief The QCopEnvelope class encapsulates and sends QCop messages over QCopChannels. QCop messages allow applications to communicate with each other. These messages are sent using QCopEnvelope, and received by connecting to a QCopChannel. To send a message, use the following protocol: \code QCopEnvelope e(channelname, messagename); e << parameter1 << parameter2 << ...; \endcode For messages without parameters, simply use: \code QCopEnvelope e(channelname, messagename); \endcode (Do not try to simplify this further as it may confuse some compilers.) The \c{channelname} of channels within Qtopia all start with "QPE/". The \c{messagename} is a function identifier followed by a list of types in parentheses. There is no whitespace in the message name. To receive a message, you will generally just use your application's predefined QPE/Application/\e{appname} channel (see QPEApplication::appMessage()), but you can make another channel and connect it to a slot like this: \code myChannel = new QCopChannel( "QPE/FooBar", this ); connect( myChannel, SIGNAL(received(const QCString &, const QByteArray &)), this, SLOT(fooBarMessage( const QCString &, const QByteArray &)) ); \endcode See also, the \link qcop.html list of Qtopia messages\endlink. */ /*! Constructs a QCopEnvelope that will write \a message to \a channel. If \a message has parameters, you must then use operator<<() to add these parameters to the envelope. */ QCopEnvelope::QCopEnvelope( const QCString& channel, const QCString& message ) : QDataStream(new QBuffer), ch(channel), msg(message) { device()->open(IO_WriteOnly); } /*! Writes the message and then destroys the QCopEnvelope. */ QCopEnvelope::~QCopEnvelope() { QByteArray data = ((QBuffer*)device())->buffer(); const int pref=16; if ( qstrncmp(ch.data(),"QPE/Application/",pref)==0 ) { QString qcopfn("/tmp/qcop-msg-"); qcopfn += ch.mid(pref); QFile qcopfile(qcopfn); if ( qcopfile.open(IO_WriteOnly | IO_Append) ) { +#ifndef Q_OS_WIN32 if(flock(qcopfile.handle(), LOCK_EX)) { - /* some error occured */ + /* some error occurred */ qWarning(QString("Failed to obtain file lock on %1 (%2)") .arg(qcopfn).arg( errno )); } - /* file locked, but might be stale (e.g. program for whatever - reason did not start). I modified more than 1 minute ago, - truncate the file */ - struct stat buf; - time_t t; - if (!fstat(qcopfile.handle(), &buf) && (time(&t) != (time_t)-1) ) { - // success on fstat, lets compare times - if (buf.st_ctime + 60 < t) { - qWarning("stale file " + qcopfn + " found. Truncating"); - ftruncate(qcopfile.handle(), 0); - qcopfile.reset(); - } +#endif + { + QDataStream ds(&qcopfile); + ds << ch << msg << data; + qcopfile.flush(); +#ifndef Q_OS_WIN32 + flock(qcopfile.handle(), LOCK_UN); +#endif + qcopfile.close(); } - if ( !QCopChannel::isRegistered(ch) ) { - int fsize = qcopfile.size(); - { - QDataStream ds(&qcopfile); - ds << ch << msg << data; - flock(qcopfile.handle(), LOCK_UN); - qcopfile.close(); - } - - if (fsize == 0) { - QString cmd = ch.mid(pref); - Global::execute(cmd); - } - - char c; - for (int i=0; (c=msg[i]); i++) { - if ( c == ' ' ) { - // Return-value required - // ###### wait for it - break; - } else if ( c == '(' ) { - // No return value - break; - } - } - goto end; - } // endif isRegisterd - flock(qcopfile.handle(), LOCK_UN); - qcopfile.close(); - qcopfile.remove(); + QByteArray b; + QDataStream stream(b, IO_WriteOnly); + stream << QString(ch.mid(pref)); + QCopChannel::send("QPE/Server", "processQCop(QString)", b); + delete device(); + return; } else { - qWarning(QString("Failed to obtain file lock on %1") + qWarning(QString("Failed to open file %1") .arg(qcopfn)); } // endif open } else if (qstrncmp(ch.data(), "QPE/SOAP/", 9) == 0) { // If this is a message that should go along the SOAP channel, we move the // endpoint URL to the data section. QString endpoint = ch.mid(9); - + ch = "QPE/SOAP"; // Since byte arrays are explicitly shared, this is appended to the data variable.. *this << endpoint; } + QCopChannel::send(ch,msg,data); -end: delete device(); } #endif |