glibmm
2.42.0
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Streaming output operations on memory chunks. More...
#include <giomm/memoryoutputstream.h>
Public Member Functions | |
virtual | ~MemoryOutputStream () |
GMemoryOutputStream* | gobj () |
Provides access to the underlying C GObject. More... | |
const GMemoryOutputStream* | gobj () const |
Provides access to the underlying C GObject. More... | |
GMemoryOutputStream* | 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* | get_data () |
Gets any loaded data from the ostream. More... | |
const void* | get_data () const |
Gets any loaded data from the ostream. More... | |
void* | steal_data () |
Gets any loaded data from the ostream. More... | |
gsize | get_size () const |
Gets the size of the currently allocated data area (available from g_memory_output_stream_get_data()). More... | |
gsize | get_data_size () const |
Returns the number of bytes from the start up to including the last byte written in the stream that has not been truncated away. More... | |
Glib::RefPtr< Glib::Bytes > | steal_as_bytes () |
Returns data from the ostream as a Bytes. More... | |
Glib::PropertyProxy_ReadOnly < void* > | property_data () const |
Pointer to buffer where data will be written. More... | |
Glib::PropertyProxy_ReadOnly < gulong > | property_data_size () const |
Size of data written to the buffer. More... | |
Glib::PropertyProxy_ReadOnly < gulong > | property_size () const |
Current size of the data buffer. More... | |
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virtual | ~OutputStream () |
GOutputStream* | gobj () |
Provides access to the underlying C GObject. More... | |
const GOutputStream* | gobj () const |
Provides access to the underlying C GObject. More... | |
GOutputStream* | 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 | write (const void* buffer, gsize count, const Glib::RefPtr< Cancellable >& cancellable) |
Tries to write count bytes from buffer into the stream. More... | |
gssize | write (const void* buffer, gsize count) |
A write() convenience overload. More... | |
gssize | write (const std::string& buffer, const Glib::RefPtr< Cancellable >& cancellable) |
Tries to write count bytes from buffer into the stream. More... | |
gssize | write (const std::string& buffer) |
Tries to write count bytes from buffer into the stream. More... | |
bool | write_all (const void* buffer, gsize count, gsize& bytes_written, const Glib::RefPtr< Cancellable >& cancellable) |
Tries to write count bytes from buffer into the stream. More... | |
bool | write_all (const void* buffer, gsize count, gsize& bytes_written) |
A write_all() convenience overload. More... | |
bool | write_all (const std::string& buffer, gsize& bytes_written, const Glib::RefPtr< Cancellable >& cancellable) |
Tries to write count bytes from buffer into the stream. More... | |
bool | write_all (const std::string& buffer, gsize& bytes_written) |
Tries to write count bytes from buffer into the stream. More... | |
gssize | write_bytes (const Glib::RefPtr< const Glib::Bytes >& bytes, const Glib::RefPtr< Cancellable >& cancellable) |
A wrapper function for g_output_stream_write() which takes a Bytes as input. More... | |
gssize | write_bytes (const Glib::RefPtr< const Glib::Bytes >& bytes) |
A write_bytes() convenience overload. More... | |
void | write_bytes_async (const Glib::RefPtr< const Glib::Bytes >& bytes, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT) |
Request an asynchronous write of the data in bytes to the stream. More... | |
void | write_bytes_async (const Glib::RefPtr< const Glib::Bytes >& bytes, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT) |
Request an asynchronous write of the data in bytes to the stream. More... | |
gssize | write_bytes_finish (const Glib::RefPtr< AsyncResult >& result) |
Finishes a stream write-from-Bytes operation. More... | |
gssize | splice (const Glib::RefPtr< InputStream >& source, const Glib::RefPtr< Cancellable >& cancellable, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE) |
Splices an input stream into an output stream. More... | |
gssize | splice (const Glib::RefPtr< InputStream >& source, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE) |
Splices an input stream into an output stream. More... | |
bool | flush (const Glib::RefPtr< Cancellable >& cancellable) |
Flushed any outstanding buffers in the stream. More... | |
bool | flush () |
A flush() 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 | write_async (const void* buffer, gsize count, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT) |
Request an asynchronous write of count bytes from buffer into the stream. More... | |
void | write_async (const void* buffer, gsize count, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT) |
Request an asynchronous write of count bytes from buffer into the stream. More... | |
gssize | write_finish (const Glib::RefPtr< AsyncResult >& result) |
Finishes a stream write operation. More... | |
void | splice_async (const Glib::RefPtr< InputStream >& source, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE, int io_priority=Glib::PRIORITY_DEFAULT) |
Splices a stream asynchronously. More... | |
void | splice_async (const Glib::RefPtr< InputStream >& source, const SlotAsyncReady& slot, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE, int io_priority=Glib::PRIORITY_DEFAULT) |
Splices a stream asynchronously. More... | |
gssize | splice_finish (const Glib::RefPtr< AsyncResult >& result) |
Finishes an asynchronous stream splice operation. More... | |
void | flush_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT) |
Flushes a stream asynchronously. More... | |
void | flush_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT) |
Flushes a stream asynchronously. More... | |
bool | flush_finish (const Glib::RefPtr< AsyncResult >& result) |
Finishes flushing an output stream. More... | |
void | close_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT) |
Requests an asynchronous close of the stream, releasing resources related to it. More... | |
void | close_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT) |
Requests an asynchronous close of the stream, releasing resources related to it. More... | |
bool | close_finish (const Glib::RefPtr< AsyncResult >& result) |
Closes an output stream. More... | |
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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) |
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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... | |
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. More... | |
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. 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... | |
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virtual | ~Seekable () |
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 stream can be truncated. 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... | |
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Interface () | |
A Default constructor. More... | |
Interface (const Glib::Interface_Class& interface_class) | |
Called by constructors of derived classes. More... | |
Interface (GObject* castitem) | |
Called by constructors of derived classes. More... | |
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. More... | |
static Glib::RefPtr < MemoryOutputStream > | create (void* data, gsize size, GReallocFunc realloc_function, GDestroyNotify destroy_function) |
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static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system. More... | |
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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 | |
MemoryOutputStream (void* data, gsize size, GReallocFunc realloc_function, GDestroyNotify destroy_function) | |
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Object () | |
Object (const Glib::ConstructParams& construct_params) | |
Object (GObject* castitem) | |
virtual | ~Object () |
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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... | |
virtual | ~ObjectBase ()=0 |
void | initialize (GObject* castitem) |
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Seekable () | |
You should derive from this class to use it. More... | |
Related Functions | |
(Note that these are not member functions.) | |
Glib::RefPtr < Gio::MemoryOutputStream > | wrap (GMemoryOutputStream* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
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Glib::RefPtr< Gio::OutputStream > | wrap (GOutputStream* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
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Glib::RefPtr< Glib::Object > | wrap (GObject* object, bool take_copy=false) |
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Glib::RefPtr< Gio::Seekable > | wrap (GSeekable* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
Additional Inherited Members | |
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typedef void(* | DestroyNotify )(gpointer data) |
Streaming output operations on memory chunks.
This class uses arbitrary memory chunks as output for GIO streaming output operations.
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explicitprotected |
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void* Gio::MemoryOutputStream::get_data | ( | ) |
Gets any loaded data from the ostream.
Note that the returned pointer may become invalid on the next write or truncate operation on the stream.
const void* Gio::MemoryOutputStream::get_data | ( | ) | const |
Gets any loaded data from the ostream.
Note that the returned pointer may become invalid on the next write or truncate operation on the stream.
gsize Gio::MemoryOutputStream::get_data_size | ( | ) | const |
Returns the number of bytes from the start up to including the last byte written in the stream that has not been truncated away.
gsize Gio::MemoryOutputStream::get_size | ( | ) | const |
Gets the size of the currently allocated data area (available from g_memory_output_stream_get_data()).
You probably don't want to use this function on resizable streams. See g_memory_output_stream_get_data_size() instead. For resizable streams the size returned by this function is an implementation detail and may be change at any time in response to operations on the stream.
If the stream is fixed-sized (ie: no realloc was passed to g_memory_output_stream_new()) then this is the maximum size of the stream and further writes will return IO_ERROR_NO_SPACE.
In any case, if you want the number of bytes currently written to the stream, use g_memory_output_stream_get_data_size().
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static |
Get the GType for this class, for use with the underlying GObject type system.
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inline |
Provides access to the underlying C GObject.
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inline |
Provides access to the underlying C GObject.
GMemoryOutputStream* Gio::MemoryOutputStream::gobj_copy | ( | ) |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
Glib::PropertyProxy_ReadOnly< void* > Gio::MemoryOutputStream::property_data | ( | ) | const |
Pointer to buffer where data will be written.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
Glib::PropertyProxy_ReadOnly< gulong > Gio::MemoryOutputStream::property_data_size | ( | ) | const |
Size of data written to the buffer.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
Glib::PropertyProxy_ReadOnly< gulong > Gio::MemoryOutputStream::property_size | ( | ) | const |
Current size of the data buffer.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
Glib::RefPtr<Glib::Bytes> Gio::MemoryOutputStream::steal_as_bytes | ( | ) |
Returns data from the ostream as a Bytes.
ostream must be closed before calling this function.
void* Gio::MemoryOutputStream::steal_data | ( | ) |
Gets any loaded data from the ostream.
Ownership of the data is transferred to the caller; when no longer needed it must be freed using the free function set in ostream's MemoryOutputStream::property_destroy_function() property.
ostream must be closed before calling this function.
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related |
A Glib::wrap() method for this object.
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. |