Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 107 insertions, 0 deletions

diff --git a/libkdenetwork/qgpgme/dataprovider.cpp b/libkdenetwork/qgpgme/dataprovider.cpp
new file mode 100644
index 000000000..8b3ae2857
--- /dev/null
+++ b/libkdenetwork/qgpgme/dataprovider.cpp
@@ -0,0 +1,107 @@
+/* dataprovider.cpp
+   Copyright (C) 2004 Klarälvdalens Datakonsult AB
+
+   This file is part of QGPGME.
+
+   QGPGME is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   QGPGME is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with QGPGME; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.  */
+
+// -*- c++ -*-
+
+#include <config.h>
+
+#include <qgpgme/dataprovider.h>
+
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <unistd.h>
+
+static bool resizeAndInit( QByteArray & ba, size_t newSize ) {
+  const size_t oldSize = ba.size();
+  bool ok = ba.resize( newSize );
+  if ( ok )
+    memset( ba.data() + oldSize, 0, newSize - oldSize );
+  return ok;
+}
+
+QGpgME::QByteArrayDataProvider::QByteArrayDataProvider()
+  : GpgME::DataProvider(), mOff( 0 ) {}
+
+QGpgME::QByteArrayDataProvider::QByteArrayDataProvider( const QByteArray & initialData )
+  : GpgME::DataProvider(), mArray( initialData ), mOff( 0 ) {}
+
+QGpgME::QByteArrayDataProvider::~QByteArrayDataProvider() {}
+
+ssize_t QGpgME::QByteArrayDataProvider::read( void * buffer, size_t bufSize ) {
+#ifndef NDEBUG
+  //qDebug( "QGpgME::QByteArrayDataProvider::read( %p, %d )", buffer, bufSize );
+#endif
+  if ( bufSize == 0 )
+    return 0;
+  if ( mOff >= mArray.size() )
+    return 0; // EOF
+  size_t amount = QMIN( bufSize, mArray.size() - mOff );
+  assert( amount > 0 );
+  memcpy( buffer, mArray.data() + mOff, amount );
+  mOff += amount;
+  return amount;
+}
+
+ssize_t QGpgME::QByteArrayDataProvider::write( const void * buffer, size_t bufSize ) {
+#ifndef NDEBUG
+  qDebug( "QGpgME::QByteArrayDataProvider::write( %p, %d )", buffer, bufSize );
+#endif
+  if ( bufSize == 0 )
+    return 0;
+  if ( mOff >= mArray.size() )
+    resizeAndInit( mArray, mOff + bufSize );
+  if ( mOff >= mArray.size() ) {
+    errno = EIO;
+    return -1;
+  }
+  assert( bufSize <= mArray.size() - mOff );
+  memcpy( mArray.data() + mOff, buffer, bufSize );
+  mOff += bufSize;
+  return bufSize;
+}
+
+off_t QGpgME::QByteArrayDataProvider::seek( off_t offset, int whence ) {
+#ifndef NDEBUG
+  qDebug( "QGpgME::QByteArrayDataProvider::seek( %d, %d )", int(offset), whence );
+#endif
+  int newOffset = mOff;
+  switch ( whence ) {
+  case SEEK_SET:
+    newOffset = offset;
+    break;
+  case SEEK_CUR:
+    newOffset += offset;
+    break;
+  case SEEK_END:
+    newOffset = mArray.size() + offset;
+    break;
+  default:
+    errno = EINVAL;
+    return (off_t)-1;
+  }
+  return mOff = newOffset;
+}
+
+void QGpgME::QByteArrayDataProvider::release() {
+#ifndef NDEBUG
+  qDebug( "QGpgME::QByteArrayDataProvider::release()" );
+#endif
+  mArray = QByteArray();
+}