glibmm 2.34.1

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Gio::MemoryInputStream Class Reference
Stream Classes

MemoryInputStream implements InputStream for arbitrary memory chunks. More...

`#include <giomm/memoryinputstream.h>`

Inheritance diagram for Gio::MemoryInputStream:
[legend]

## Public Member Functions
virtual | ~MemoryInputStream ()
GMemoryInputStream* | gobj ()
| Provides access to the underlying C GObject.
const GMemoryInputStream* | gobj () const
| Provides access to the underlying C GObject.
GMemoryInputStream* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
void | add_data (const std::string& data)
| Appends to data that can be read from the input stream.
void | add_data (const void* data, gssize len)
| Appends to data that can be read from the input stream.
void | add_data (const void* data, gssize len, GDestroyNotify destroy)
| Appends to data that can be read from the input stream.
Public Member Functions inherited from Gio::InputStream
virtual | ~InputStream ()
GInputStream* | gobj ()
| Provides access to the underlying C GObject.
const GInputStream* | gobj () const
| Provides access to the underlying C GObject.
GInputStream* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
gssize | read (void* buffer, gsize count, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to read count bytes from the stream into the buffer starting at buffer.
gssize | read (void* buffer, gsize count)
| A read() convenience overload.
bool | read_all (void* buffer, gsize count, gsize& bytes_read, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to read count bytes from the stream into the buffer starting at buffer.
bool | read_all (void* buffer, gsize count, gsize& bytes_read)
| A read_all() convenience overload.
Glib::RefPtr< Glib::Bytes > | read_bytes (gsize count, const Glib::RefPtr< Cancellable >& cancellable)
| Like g_input_stream_read(), this tries to read count bytes from the stream in a blocking fashion.
void | read_bytes_async (gsize count, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous read of count bytes from the stream into a new Glib::Bytes.
void | read_bytes_async (gsize count, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous read of count bytes from the stream into a new Glib::Bytes.
Glib::RefPtr< Glib::Bytes > | read_bytes_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes an asynchronous stream read-into-Bytes operation.
gssize | skip (gsize count, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to skip count bytes from the stream.
gssize | skip (gsize count)
| A skip() convenience overload.
bool | close (const Glib::RefPtr< Cancellable >& cancellable)
| Closes the stream, releasing resources related to it.
bool | close ()
| A close() convenience overload.
void | read_async (void* buffer, gsize count, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous read of count bytes from the stream into the buffer starting at buffer.
void | read_async (void* buffer, gsize count, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous read of count bytes from the stream into the buffer starting at buffer.
gssize | read_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes an asynchronous stream read operation.
void | skip_async (gsize count, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous skip of count bytes from the stream into the buffer starting at buffer.
void | skip_async (gsize count, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous skip of count bytes from the stream into the buffer starting at buffer.
gssize | skip_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes a stream skip operation.
void | close_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Requests an asynchronous closes of the stream, releasing resources related to it.
void | close_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Requests an asynchronous closes of the stream, releasing resources related to it.
gboolean | close_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes closing a stream asynchronously, started from g_input_stream_close_async().
Public Member Functions inherited from Glib::Object
void* | get_data (const QueryQuark& key)
void | set_data (const Quark& key, void* data)
void | set_data (const Quark& key, void* data, DestroyNotify notify)
void | remove_data (const QueryQuark& quark)
void* | steal_data (const QueryQuark& quark)
Public Member Functions inherited from Glib::ObjectBase
void | set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
| You probably want to use a specific property_*() accessor method instead.
void | get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
| You probably want to use a specific property_*() accessor method instead.
template<class PropertyType >
void | set_property (const Glib::ustring& property_name, const PropertyType& value)
| You probably want to use a specific property_*() accessor method instead.
template<class PropertyType >
void | get_property (const Glib::ustring& property_name, PropertyType& value) const
| You probably want to use a specific property_*() accessor method instead.
void | connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead, but this is necessary when using the reduced API.
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead, but this is necessary when using the reduced API.
void | freeze_notify ()
| Increases the freeze count on object.
void | thaw_notify ()
| Reverts the effect of a previous call to freeze_notify().
virtual void | reference () const
| Increment the reference count for this object.
virtual void | unreference () const
| Decrement the reference count for this object.
GObject* | gobj ()
| Provides access to the underlying C GObject.
const GObject* | gobj () const
| Provides access to the underlying C GObject.
GObject* | gobj_copy () const
| Give a ref-ed copy to someone. Use for direct struct access.
Public Member Functions inherited from sigc::trackable
| trackable (const trackable &src)
trackable & | operator= (const trackable &src)
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | remove_destroy_notify_callback (void *data) const
void | notify_callbacks ()
Public Member Functions inherited from Gio::Seekable
virtual | ~Seekable ()
GSeekable* | gobj ()
| Provides access to the underlying C GObject.
const GSeekable* | gobj () const
| Provides access to the underlying C GObject.
goffset | tell () const
| Tells the current position within the stream.
bool | can_seek () const
| Tests if the stream supports the SeekableIface.
bool | seek (goffset offset, Glib::SeekType type, const Glib::RefPtr< Cancellable >& cancellable)
| Seeks in the stream by the given offset, modified by type.
bool | seek (goffset offset, Glib::SeekType type)
| A seek() convenience overload.
bool | can_truncate () const
| Tests if the stream can be truncated.
bool | truncate (goffset offset, const Glib::RefPtr< Cancellable >& cancellable)
| Truncates a stream with a given #offset.
bool | truncate (goffset offset)
| A truncate() convenience overload.
Public Member Functions inherited from Glib::Interface
| Interface (const Glib::Interface_Class& interface_class)
| Called by constructors of derived classes.
| Interface (GObject* castitem)
| Called by constructors of derived classes.
virtual | ~Interface ()
GObject* | gobj ()
const GObject* | gobj () const

## Static Public Member Functions
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system.
static Glib::RefPtr < MemoryInputStream > | create ()
Static Public Member Functions inherited from Gio::InputStream
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system.
Static Public Member Functions inherited from Gio::Seekable
static void | add_interface (GType gtype_implementer)
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system.

## Protected Member Functions
| MemoryInputStream ()
Protected Member Functions inherited from Gio::Seekable
| Seekable ()
| You should derive from this class to use it.

## Related Functions
(Note that these are not member functions.)
Glib::RefPtr < Gio::MemoryInputStream > | wrap (GMemoryInputStream* object, bool take_copy=false)
| A Glib::wrap() method for this object.
Related Functions inherited from Gio::InputStream
Glib::RefPtr< Gio::InputStream > | wrap (GInputStream* object, bool take_copy=false)
| A Glib::wrap() method for this object.
Related Functions inherited from Glib::Object
Glib::RefPtr< Glib::Object > | wrap (GObject* object, bool take_copy=false)
Related Functions inherited from Gio::Seekable
Glib::RefPtr< Gio::Seekable > | wrap (GSeekable* object, bool take_copy=false)
| A Glib::wrap() method for this object.

## Additional Inherited Members
Public Types inherited from Glib::Object
typedef void(* | DestroyNotify )(gpointer data)
Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify

## Detailed Description

MemoryInputStream implements InputStream for arbitrary memory chunks.

Since glibmm 2.16:

## Constructor & Destructor Documentation

virtual Gio::MemoryInputStream::~MemoryInputStream | ( |  | ) |
| virtual

Gio::MemoryInputStream::MemoryInputStream | ( |  | ) |
| protected

## Member Function Documentation

void Gio::MemoryInputStream::add_data | ( | const std::string & | data | ) |

Appends to data that can be read from the input stream.

Parameters

  data | Input data.

void Gio::MemoryInputStream::add_data | ( | const void * | data,
|  | gssize | len
| ) |  |

Appends to data that can be read from the input stream.

Note that the data will copied internally and freed when no longer needed.

Parameters

  data | Input data.
  len | Length of the data, may be -1 if data is a null-terminated string.

Deprecated:
  Use version with destroy notification

void Gio::MemoryInputStream::add_data | ( | const void * | data,
|  | gssize | len,
|  | GDestroyNotify | destroy
| ) |  |

Appends to data that can be read from the input stream.

Parameters

  data | Input data.
  len | Length of the data, may be -1 if data is a null-terminated string.
  destroy | A function to be called to free the data when it is no longer needed

static Glib::RefPtr<MemoryInputStream> Gio::MemoryInputStream::create | ( |  | ) |
| static

static GType Gio::MemoryInputStream::get_type | ( |  | ) |
| static

Get the GType for this class, for use with the underlying GObject type system.

GMemoryInputStream* Gio::MemoryInputStream::gobj | ( |  | ) |
| inline

Provides access to the underlying C GObject.

const GMemoryInputStream* Gio::MemoryInputStream::gobj | ( |  | ) | const
| inline

Provides access to the underlying C GObject.

GMemoryInputStream* Gio::MemoryInputStream::gobj_copy | ( |  | ) |

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

## Friends And Related Function Documentation

Glib::RefPtr< Gio::MemoryInputStream > wrap | ( | GMemoryInputStream * | object,
|  | bool | take_copy = `false`
| ) |  |
| related

A Glib::wrap() method for this object.

Parameters

  object | The C instance.
  take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns
  A C++ instance that wraps this C instance.