vos/source/stream.cxx

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  30
  31 #include <limits>
  32
  33 #include <osl/diagnose.h>
  34 #include <vos/object.hxx>
  35 #include <vos/stream.hxx>
  36
  37 using namespace vos;
  38
  39 /////////////////////////////////////////////////////////////////////////////
  40 //
  41 // Stream class
  42 //
  43
  44 VOS_IMPLEMENT_CLASSINFO(VOS_CLASSNAME(OStream, vos), VOS_NAMESPACE(OStream, vos), VOS_NAMESPACE(OObject, vos), 0);
  45
  46 OStream::OStream(IPositionableStream& rStream)
  47     : m_rStream(rStream)
  48 {
  49 }
  50
  51 OStream::~OStream()
  52 {
  53 }
  54
  55 sal_Int32 OStream::read(void* pbuffer, sal_uInt32 n) const
  56 {
  57     return (m_rStream.read(pbuffer, n));
  58 }
  59
  60 sal_Int32 OStream::read(IPositionableStream::Offset offset,
  61                       void* pbuffer, sal_uInt32 n) const
  62 {
  63     return (seekTo(offset) ? read(pbuffer, n) : -1);
  64 }
  65
  66 sal_Int32 OStream::write(const void* pbuffer, sal_uInt32 n)
  67 {
  68     return
  69         n <= static_cast< sal_uInt32 >(std::numeric_limits< sal_Int32 >::max())
  70         && (m_rStream.write(pbuffer, n) == static_cast< sal_Int32 >(n));
  71 }
  72
  73 sal_Int32 OStream::write(IPositionableStream::Offset offset,
  74                        const void* pbuffer, sal_uInt32 n)
  75 {
  76     return (seekTo(offset) && write(pbuffer, n));
  77 }
  78
  79 sal_Bool OStream::append(void* pbuffer, sal_uInt32 n)
  80 {
  81     return (seekToEnd() && write(pbuffer, n));
  82 }
  83
  84 sal_Bool OStream::seekTo(IPositionableStream::Offset pos) const
  85 {
  86     return (m_rStream.seekTo(pos));
  87 }
  88
  89 sal_Bool OStream::seekToEnd() const
  90 {
  91     return (m_rStream.seekToEnd());
  92 }
  93
  94 sal_Bool OStream::seekRelative(sal_Int32 change) const
  95 {
  96     return (m_rStream.seekRelative(change));
  97 }
  98
  99 sal_Bool OStream::changeSize(sal_uInt32 new_size)
 100 {
 101     return (m_rStream.changeSize(new_size));
 102 }
 103
 104 sal_uInt32 OStream::getSize() const
 105 {
 106     return (m_rStream.getSize());
 107 }
 108
 109 sal_Bool OStream::isEof() const
 110 {
 111     return (m_rStream.isEof());
 112 }
 113
 114 IPositionableStream::Offset OStream::getOffset() const
 115 {
 116     return (m_rStream.getOffset());
 117 }
 118