glibmm: Gio::MemoryInputStream Class Reference

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

#include </home/kjell/checkout/gnome/glibmm/gio/giomm/memoryinputstream.h>

Inheritance diagram for Gio::MemoryInputStream:

Public Types

using SlotDestroyData = sigc::slot< void(void*)>
 For example, void on_destroy_data(void* data);. More...

 
- Public Types inherited from Glib::Object
using DestroyNotify = void(*)(gpointer data)
 
- Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify func_destroy_notify
 
- Public Types inherited from sigc::notifiable
typedef internal::func_destroy_notify func_destroy_notify
 

Public Member Functions

 MemoryInputStream (MemoryInputStream&& src) noexcept
 
MemoryInputStreamoperator= (MemoryInputStream&& src) noexcept
 
 ~MemoryInputStream () noexcept override
 
GMemoryInputStream* gobj ()
 Provides access to the underlying C GObject. More...

 
const GMemoryInputStream* gobj () const
 Provides access to the underlying C GObject. More...

 
GMemoryInputStream* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...

 
void add_data (const void* data, gssize len, GDestroyNotify destroy)
 Appends data to data that can be read from the input stream. More...

 
void add_data (const void* data, gssize len, const SlotDestroyData& destroy_slot)
 Appends to data that can be read from the input stream. More...

 
void add_bytes (const Glib::RefPtr< const Glib::Bytes >& bytes)
 Appends bytes to data that can be read from the input stream. More...

 
- Public Member Functions inherited from Gio::InputStream
 InputStream (InputStream&& src) noexcept
 
InputStreamoperator= (InputStream&& src) noexcept
 
 ~InputStream () noexcept override
 
GInputStream* gobj ()
 Provides access to the underlying C GObject. More...

 
const GInputStream* gobj () const
 Provides access to the underlying C GObject. More...

 
GInputStream* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...

 
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. More...

 
gssize read (void* buffer, gsize count)
 A read() convenience overload. More...

 
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. More...

 
bool read_all (void* buffer, gsize count, gsize& bytes_read)
 A read_all() convenience overload. More...

 
Glib::RefPtr< Glib::Bytesread_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. More...

 
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. More...

 
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. More...

 
Glib::RefPtr< Glib::Bytesread_bytes_finish (const Glib::RefPtr< AsyncResult >& result)
 Finishes an asynchronous stream read-into-Bytes operation. More...

 
gssize skip (gsize count, const Glib::RefPtr< Cancellable >& cancellable)
 Tries to skip count bytes from the stream. More...

 
gssize skip (gsize count)
 A skip() convenience overload. More...

 
bool close (const Glib::RefPtr< Cancellable >& cancellable)
 Closes the stream, releasing resources related to it. More...

 
bool close ()
 A close() convenience overload. More...

 
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. More...

 
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. More...

 
gssize read_finish (const Glib::RefPtr< AsyncResult >& result)
 Finishes an asynchronous stream read operation. More...

 
void read_all_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. More...

 
void read_all_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. More...

 
bool read_all_finish (const Glib::RefPtr< AsyncResult >& result, gsize& bytes_read)
 Finishes an asynchronous stream read operation started with g_input_stream_read_all_async(). More...

 
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. More...

 
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. More...

 
gssize skip_finish (const Glib::RefPtr< AsyncResult >& result)
 Finishes a stream skip operation. More...

 
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. More...

 
void close_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
 Requests an asynchronous closes of the stream, releasing resources related to it. More...

 
gboolean close_finish (const Glib::RefPtr< AsyncResult >& result)
 Finishes closing a stream asynchronously, started from g_input_stream_close_async(). More...

 
bool is_closed () const
 Checks if an input stream is closed. More...

 
bool has_pending () const
 Checks if an input stream has pending actions. More...

 
- Public Member Functions inherited from Glib::Object
 Object (const Object&)=delete
 
Objectoperator= (const Object&)=delete
 
 Object (Object&& src) noexcept
 
Objectoperator= (Object&& src) noexcept
 
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
 ObjectBase (const ObjectBase&)=delete
 
ObjectBaseoperator= (const ObjectBase&)=delete
 
void set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
 You probably want to use a specific property_*() accessor method instead. More...

 
void get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
 You probably want to use a specific property_*() accessor method instead. More...

 
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. More...

 
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. More...

 
template<class PropertyType >
PropertyType get_property (const Glib::ustring& property_name) const
 You probably want to use a specific property_*() accessor method instead. More...

 
sigc::connection 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. More...

 
sigc::connection connect_property_changed (const Glib::ustring& property_name, sigc::slot< void()>&& slot)
 You can use the signal_changed() signal of the property proxy instead. More...

 
void freeze_notify ()
 Increases the freeze count on object. More...

 
void thaw_notify ()
 Reverts the effect of a previous call to freeze_notify(). More...

 
virtual void reference () const
 Increment the reference count for this object. More...

 
virtual void unreference () const
 Decrement the reference count for this object. More...

 
GObject* gobj ()
 Provides access to the underlying C GObject. More...

 
const GObject* gobj () const
 Provides access to the underlying C GObject. More...

 
GObject* gobj_copy () const
 Give a ref-ed copy to someone. Use for direct struct access. More...

 
- Public Member Functions inherited from sigc::trackable
 trackable () noexcept
 
 trackable (const trackable &src) noexcept
 
 trackable (trackable &&src) noexcept
 
 ~trackable ()
 
void add_destroy_notify_callback (notifiable *data, func_destroy_notify func) const
 
void notify_callbacks ()
 
trackableoperator= (const trackable &src)
 
trackableoperator= (trackable &&src) noexcept
 
void remove_destroy_notify_callback (notifiable *data) const
 
- Public Member Functions inherited from Gio::Seekable
 Seekable (Seekable&& src) noexcept
 
Seekableoperator= (Seekable&& src) noexcept
 
 ~Seekable () noexcept override
 
GSeekable* gobj ()
 Provides access to the underlying C GObject. More...

 
const GSeekable* gobj () const
 Provides access to the underlying C GObject. More...

 
goffset tell () const
 Tells the current position within the stream. More...

 
bool can_seek () const
 Tests if the stream supports the SeekableIface. More...

 
bool seek (goffset offset, Glib::SeekType type, const Glib::RefPtr< Cancellable >& cancellable)
 Seeks in the stream by the given offset, modified by type. More...

 
bool seek (goffset offset, Glib::SeekType type)
 A seek() convenience overload. More...

 
bool can_truncate () const
 Tests if the length of the stream can be adjusted with g_seekable_truncate(). More...

 
bool truncate (goffset offset, const Glib::RefPtr< Cancellable >& cancellable)
 Truncates a stream with a given #offset. More...

 
bool truncate (goffset offset)
 A truncate() convenience overload. More...

 
- Public Member Functions inherited from Glib::Interface
 Interface ()
 A Default constructor. More...

 
 Interface (Interface&& src) noexcept
 
Interfaceoperator= (Interface&& src) noexcept
 
 Interface (const Glib::Interface_Class& interface_class)
 Called by constructors of derived classes. More...

 
 Interface (GObject* castitem)
 Called by constructors of derived classes. More...

 
 ~Interface () noexcept override
 
 Interface (const Interface&)=delete
 
Interfaceoperator= (const Interface&)=delete
 
GObject* gobj ()
 
const GObject* gobj () const
 
- Public Member Functions inherited from Gio::PollableInputStream
 PollableInputStream (PollableInputStream&& src) noexcept
 
PollableInputStreamoperator= (PollableInputStream&& src) noexcept
 
 ~PollableInputStream () noexcept override
 
GPollableInputStream* gobj ()
 Provides access to the underlying C GObject. More...

 
const GPollableInputStream* gobj () const
 Provides access to the underlying C GObject. More...

 
bool can_poll () const
 Checks if stream is actually pollable. More...

 
bool is_readable () const
 Checks if stream can be read. More...

 
gssize read_nonblocking (void* buffer, gsize count, const Glib::RefPtr< Cancellable >& cancellable)
 Attempts to read up to count bytes from stream into buffer, as with g_input_stream_read(). More...

 
gssize read_nonblocking (void* buffer, gsize count)
 A read_nonblocking() convenience overload. More...

 

Static Public Member Functions

static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...

 
static Glib::RefPtr< MemoryInputStreamcreate ()
 
- 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. More...

 
- 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. More...

 
- Static Public Member Functions inherited from Gio::PollableInputStream
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. More...

 

Protected Member Functions

 MemoryInputStream ()
 
- Protected Member Functions inherited from Gio::InputStream
 InputStream ()
 
bool set_pending ()
 Sets stream to have actions pending. More...

 
void clear_pending ()
 Clears the pending flag on stream. More...

 
virtual gssize read_vfunc (void* buffer, gsize count, const Glib::RefPtr< Cancellable >& cancellable)
 
virtual gssize skip_vfunc (gsize count, const Glib::RefPtr< Cancellable >& cancellable)
 
virtual bool close_vfunc (const Glib::RefPtr< Cancellable >& cancellable)
 
- Protected Member Functions inherited from Glib::Object
 Object ()
 
 Object (const Glib::ConstructParams& construct_params)
 
 Object (GObject* castitem)
 
 ~Object () noexcept override
 
- Protected Member Functions inherited from Glib::ObjectBase
 ObjectBase ()
 This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...

 
 ObjectBase (const char* custom_type_name)
 A derived constructor always overrides this choice. More...

 
 ObjectBase (const std::type_info& custom_type_info)
 This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...

 
 ObjectBase (ObjectBase&& src) noexcept
 
ObjectBaseoperator= (ObjectBase&& src) noexcept
 
virtual ~ObjectBase () noexcept=0
 
void initialize (GObject* castitem)
 
void initialize_move (GObject* castitem, Glib::ObjectBase* previous_wrapper)
 
- Protected Member Functions inherited from Gio::Seekable
 Seekable ()
 You should derive from this class to use it. More...

 
- Protected Member Functions inherited from Gio::PollableInputStream
 PollableInputStream ()
 You should derive from this class to use it. More...

 
virtual bool can_poll_vfunc () const
 
virtual bool is_readable_vfunc () const
 
virtual gssize read_nonblocking_vfunc (void* buffer, gsize count)
 

Related Functions

(Note that these are not member functions.)

Glib::RefPtr< Gio::MemoryInputStreamwrap (GMemoryInputStream* object, bool take_copy=false)
 A Glib::wrap() method for this object. More...

 

Detailed Description

MemoryInputStream implements InputStream for arbitrary memory chunks.

Since glibmm 2.16:

Member Typedef Documentation

using Gio::MemoryInputStream::SlotDestroyData = sigc::slot<void(void*)>

For example, void on_destroy_data(void* data);.

Parameters
dataThe data to free.
Since glibmm 2.40:

Constructor & Destructor Documentation

Gio::MemoryInputStream::MemoryInputStream ( MemoryInputStream&&  src)
noexcept
Gio::MemoryInputStream::~MemoryInputStream ( )
overridenoexcept
Gio::MemoryInputStream::MemoryInputStream ( )
protected

Member Function Documentation

void Gio::MemoryInputStream::add_bytes ( const Glib::RefPtr< const Glib::Bytes >&  bytes)

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

Since glibmm 2.44:
Parameters
bytesInput data.
void Gio::MemoryInputStream::add_data ( const void *  data,
gssize  len,
GDestroyNotify  destroy 
)

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

Parameters
dataInput data.
lenLength of the data, may be -1 if data is a nul-terminated string.
destroyFunction that is called to free data, or nullptr.
void Gio::MemoryInputStream::add_data ( const void *  data,
gssize  len,
const SlotDestroyData destroy_slot 
)

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

Parameters
dataInput data.
lenLength of the data, may be -1 if data is a null-terminated string.
destroy_slotA slot to be called to free the data when it is no longer needed.
Since glibmm 2.40:
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.

MemoryInputStream& Gio::MemoryInputStream::operator= ( MemoryInputStream&&  src)
noexcept

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
objectThe C instance.
take_copyFalse 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.