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class Geo::IGeoStream

    └>Geo::IGeoInputStream

An IGeoStream allows you to read/write memory/files in a consistent manner, and is an extension point for users wishing to control where data is stored.

The simplest implementation is

See Also

GeoFileStream which stores/loads content from a file.

Functions

Name Description
~IGeoInputStream()

Deleting a stream should behave like a close operation.

~IGeoStream()

Deleting a stream should behave like a close operation.

BeginType(TypeId, u32)

Provide information about the typed data written to the stream.

EndType(u32)

Provide information about the typed data written to the stream.

GetPosition()

Return the position of the read/write pointer within the stream (prototype matches ftell)

GetPosition()

Return the position of the read/write pointer within the stream (prototype matches ftell)

IsEof()

Is the read pointer at the end of the file (as with feof, only returns true if you have read past end)

IsEof()

Is the read/write pointer at the end of the file (as with feof, only returns true if you have read past end)

IsOk()

Tests if the stream is valid.

IsOk()

Tests if the stream is valid.

Read(TIter, TIter)

Read a collection of objects, returning true on success.

Read(T(&))

Read a fixed size array.

Read(void *, size_t, size_t)

Read data (prototype matches fread). Prefer to use the templated Read methods.

Read(T &)

Read a single object, returning true on success.

ReadImpl(T &, GeoStd::TrueType)

Read a single object, returning true on success.

ReadImpl(T &, GeoStd::FalseType)

Read a single object, returning true on success.

ReadToEnd()

Reads the stream to its end and returns the data as a char array.

SetPosition(Geo::u64)

Set the position of the read/write pointer within the stream (prototype matches fseek)

SetPosition(u64)

Set the position of the read/write pointer within the stream (prototype matches fseek)

Write(TIter, TIter)

Write a collection of objects, in range [begin, end) as STL-style classes support.

Write(const void *, size_t, size_t)

Write data (prototype matches fwrite). Prefer to use the templated Write methods.

Write(const T(&))

Write a fixed size array.

Write(const T &)

Write a single object, returning true on success.

Enums

Name Description
EStreamMode

An IGeoStream is open in either esmRead or esmWrite mode.


virtual Geo::IGeoInputStream::~IGeoInputStream


public: virtual ~IGeoInputStream()


Deleting a stream should behave like a close operation.


virtual Geo::IGeoStream::~IGeoStream


public: virtual ~IGeoStream()


Deleting a stream should behave like a close operation.


virtual u32 Geo::IGeoStream::BeginType


public: virtual u32 BeginType
(
    TypeId type,
    u32 count
)


Provide information about the typed data written to the stream.


virtual void Geo::IGeoStream::EndType


public: virtual void EndType
(
    u32 index
)


Provide information about the typed data written to the stream.


virtual u64 Geo::IGeoStream::GetPosition


public: u64 GetPosition() const


Return the position of the read/write pointer within the stream (prototype matches ftell)


virtual Geo::u64 Geo::IGeoInputStream::GetPosition


public: Geo::u64 GetPosition() const


Return the position of the read/write pointer within the stream (prototype matches ftell)


virtual bool Geo::IGeoInputStream::IsEof


public: bool IsEof() const


Is the read pointer at the end of the file (as with feof, only returns true if you have read past end)


virtual bool Geo::IGeoStream::IsEof


public: bool IsEof() const


Is the read/write pointer at the end of the file (as with feof, only returns true if you have read past end)


virtual bool Geo::IGeoStream::IsOk


public: bool IsOk() const


Tests if the stream is valid.


virtual bool Geo::IGeoInputStream::IsOk


public: bool IsOk() const


Tests if the stream is valid.


bool Geo::IGeoInputStream::Read


public: bool Read
(
    TIter begin,
    TIter end
)


Read a collection of objects, returning true on success.

Object must be considered blittable (see IsBlittable<T>). Note that the storage must have been pre-allocated as it will write directly to the iterators provided. Given that we do not have the STL-style 'back-inserter' classes, for GeoArrays you should use the ReadArray helper function.


bool Geo::IGeoInputStream::Read


public: bool Read
(
    T(&) a
)


Read a fixed size array.


virtual size_t Geo::IGeoInputStream::Read


public: size_t Read
(
    void * pData,
    size_t size,
    size_t count
)


Read data (prototype matches fread). Prefer to use the templated Read methods.


GEO_FORCE_INLINE bool Geo::IGeoInputStream::Read


public: GEO_FORCE_INLINE bool Read
(
    T & object
)


Read a single object, returning true on success.

There must either be a ReadObject overload for T, or T be considered blittable (see IsBlittable<T>).


bool Geo::IGeoInputStream::ReadImpl


public: bool ReadImpl
(
    T & object,
    GeoStd::TrueType
)


Read a single object, returning true on success.

There must either be a ReadObject overload for T, or T be considered blittable (see IsBlittable<T>).


bool Geo::IGeoInputStream::ReadImpl


public: bool ReadImpl
(
    T & object,
    GeoStd::FalseType
)


Read a single object, returning true on success.

There must either be a ReadObject overload for T, or T be considered blittable (see IsBlittable<T>).


virtual Geo::GeoArray<char> Geo::IGeoInputStream::ReadToEnd


public: virtual Geo::GeoArray< char > ReadToEnd()


Reads the stream to its end and returns the data as a char array.


virtual bool Geo::IGeoInputStream::SetPosition


public: bool SetPosition
(
    Geo::u64 pos
)


Set the position of the read/write pointer within the stream (prototype matches fseek)


virtual bool Geo::IGeoStream::SetPosition


public: bool SetPosition
(
    u64 pos
)


Set the position of the read/write pointer within the stream (prototype matches fseek)


bool Geo::IGeoStream::Write


public: bool Write
(
    TIter begin,
    TIter end
)


Write a collection of objects, in range [begin, end) as STL-style classes support.

Objects have same requirements single object Write (see IsBlittable<T>).


virtual size_t Geo::IGeoStream::Write


public: size_t Write
(
    const void * pData,
    size_t size,
    size_t count
)


Write data (prototype matches fwrite). Prefer to use the templated Write methods.


bool Geo::IGeoStream::Write


public: bool Write
(
    const T(&) a
)


Write a fixed size array.


GEO_FORCE_INLINE bool Geo::IGeoStream::Write


public: GEO_FORCE_INLINE bool Write
(
    const T & object
)


Write a single object, returning true on success.

There must either be a WriteObject overload for T, or T must be blittable (see IsBlittable<T>).


EStreamMode


public: enum EStreamMode
{
    esmWrite,
    esmRead
}


An IGeoStream is open in either esmRead or esmWrite mode.

enumerators
esmWrite
esmRead
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