glibmm: Gio::MemoryInputStream Class Reference
MemoryInputStream implements InputStream for arbitrary memory chunks. More...
#include <giomm/memoryinputstream.h>

Public Types |
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using | SlotDestroyData = sigc::slot < void, void* > |
For example, void on_destroy_data(void* data);.
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using | DestroyNotify = void(*)(gpointer data) |
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typedef internal::func_destroy_notify | func_destroy_notify |
Public Member Functions |
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MemoryInputStream ( MemoryInputStream && src) noexcept | |
MemoryInputStream & | operator= ( MemoryInputStream && src) noexcept |
~MemoryInputStream () noexceptoverride | |
GMemoryInputStream* | gobj () |
Provides access to the underlying C GObject.
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const GMemoryInputStream* | gobj () const |
Provides access to the underlying C GObject.
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GMemoryInputStream* | gobj_copy () |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
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void | add_data (const std::string & data) |
Appends to data that can be read from the input stream.
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void | add_data (const void* data, gssize len) |
Appends to data that can be read from the input stream.
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void | add_data (const void* data, gssize len, GDestroyNotify destroy) |
Appends
data
to data that can be read from the input stream.
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void | add_data (const void* data, gssize len, const SlotDestroyData & destroy_slot) |
Appends to data that can be read from the input stream.
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void | add_bytes (const Glib::RefPtr < const Glib::Bytes >& bytes) |
Appends
bytes
to data that can be read from the input stream.
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InputStream ( InputStream && src) noexcept | |
InputStream & | operator= ( InputStream && src) noexcept |
~InputStream () noexceptoverride | |
GInputStream* | gobj () |
Provides access to the underlying C GObject.
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const GInputStream* | gobj () const |
Provides access to the underlying C GObject.
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GInputStream* | gobj_copy () |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
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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
.
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gssize | read (void* buffer, gsize count ) |
A
read()
convenience overload.
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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
.
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bool | read_all (void* buffer, gsize count , gsize& bytes_read) |
A
read_all()
convenience overload.
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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.
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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
.
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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
.
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Glib::RefPtr < Glib::Bytes > | read_bytes_finish (const Glib::RefPtr < AsyncResult >& result) |
Finishes an asynchronous stream read-into-Bytes operation.
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gssize | skip (gsize count , const Glib::RefPtr < Cancellable >& cancellable) |
Tries to skip
count
bytes from the stream.
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gssize | skip (gsize count ) |
A
skip()
convenience overload.
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bool | close (const Glib::RefPtr < Cancellable >& cancellable) |
Closes the stream, releasing resources related to it.
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bool | close () |
A
close()
convenience overload.
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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
.
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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
.
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gssize | read_finish (const Glib::RefPtr < AsyncResult >& result) |
Finishes an asynchronous stream read operation.
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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
.
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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
.
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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().
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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
.
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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
.
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gssize | skip_finish (const Glib::RefPtr < AsyncResult >& result) |
Finishes a stream skip operation.
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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.
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void | close_async (const SlotAsyncReady & slot, int io_priority= Glib::PRIORITY_DEFAULT ) |
Requests an asynchronous closes of the stream, releasing resources related to it.
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gboolean | close_finish (const Glib::RefPtr < AsyncResult >& result) |
Finishes closing a stream asynchronously, started from g_input_stream_close_async().
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Object (const Object &)=delete | |
Object & | operator= (const Object &)=delete |
Object ( Object && src) noexcept | |
Object & | operator= ( 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) |
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ObjectBase (const ObjectBase &)=delete | |
ObjectBase & | operator= (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.
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void | get_property_value (const Glib::ustring & property_name, Glib::ValueBase & value) const |
You probably want to use a specific property_*() accessor method instead.
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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.
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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.
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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.
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void | connect_property_changed (const Glib::ustring & property_name, sigc::slot < void >&& slot) |
You can use the signal_changed() signal of the property proxy instead.
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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.
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sigc::connection | connect_property_changed_with_return (const Glib::ustring & property_name, sigc::slot < void >&& slot) |
You can use the signal_changed() signal of the property proxy instead.
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void | freeze_notify () |
Increases the freeze count on object.
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void | thaw_notify () |
Reverts the effect of a previous call to
freeze_notify()
.
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virtual void | reference () const |
Increment the reference count for this object.
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virtual void | unreference () const |
Decrement the reference count for this object.
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GObject* | gobj () |
Provides access to the underlying C GObject.
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const GObject* | gobj () const |
Provides access to the underlying C GObject.
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GObject* | gobj_copy () const |
Give a ref-ed copy to someone. Use for direct struct access.
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trackable () noexcept | |
trackable (const trackable &src) noexcept | |
trackable ( trackable &&src) | |
~trackable () | |
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const |
void | notify_callbacks () |
trackable & | operator= (const trackable &src) |
trackable & | operator= ( trackable &&src) |
void | remove_destroy_notify_callback (void *data) const |
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Seekable ( Seekable && src) noexcept | |
Seekable & | operator= ( Seekable && src) noexcept |
~Seekable () noexceptoverride | |
GSeekable* | gobj () |
Provides access to the underlying C GObject.
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const GSeekable* | gobj () const |
Provides access to the underlying C GObject.
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goffset | tell () const |
Tells the current position within the stream.
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bool | can_seek () const |
Tests if the stream supports the SeekableIface.
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bool | seek (goffset offset, Glib::SeekType type, const Glib::RefPtr < Cancellable >& cancellable) |
Seeks in the stream by the given
offset
, modified by
type
.
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bool | seek (goffset offset, Glib::SeekType type) |
A
seek()
convenience overload.
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bool | can_truncate () const |
Tests if the stream can be truncated.
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bool | truncate (goffset offset, const Glib::RefPtr < Cancellable >& cancellable) |
Truncates a stream with a given #offset.
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bool | truncate (goffset offset) |
A
truncate()
convenience overload.
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Interface () | |
A Default constructor.
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Interface ( Interface && src) noexcept | |
Interface & | operator= ( Interface && src) noexcept |
Interface (const Glib::Interface_Class& interface_class) | |
Called by constructors of derived classes.
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Interface (GObject* castitem) | |
Called by constructors of derived classes.
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~Interface () noexceptoverride | |
Interface (const Interface &)=delete | |
Interface & | operator= (const Interface &)=delete |
GObject* | gobj () |
const GObject* | gobj () const |
Static Public Member Functions |
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static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system.
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static Glib::RefPtr < MemoryInputStream > | create () |
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static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system.
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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.
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Protected Member Functions |
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MemoryInputStream () | |
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Object () | |
Object (const Glib::ConstructParams& construct_params) | |
Object (GObject* castitem) | |
~Object () noexceptoverride | |
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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.
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ObjectBase (const char* custom_type_name) | |
A derived constructor always overrides this choice.
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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.
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ObjectBase ( ObjectBase && src) noexcept | |
ObjectBase & | operator= ( ObjectBase && src) noexcept |
virtual | ~ObjectBase () noexcept=0 |
void | initialize (GObject* castitem) |
void | initialize_move (GObject* castitem, Glib::ObjectBase * previous_wrapper) |
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Seekable () | |
You should derive from this class to use it.
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Related Functions |
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(Note that these are not member functions.) |
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Glib::RefPtr < Gio::MemoryInputStream > | wrap (GMemoryInputStream* object, bool take_copy=false) |
A
Glib::wrap()
method for this object.
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Glib::RefPtr < Gio::InputStream > | wrap (GInputStream* object, bool take_copy=false) |
A
Glib::wrap()
method for this object.
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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.
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Detailed Description
MemoryInputStream implements InputStream for arbitrary memory chunks.
Member Typedef Documentation
using Gio::MemoryInputStream::SlotDestroyData = sigc::slot <void, void*> |
For example, void on_destroy_data(void* data);.
- Parameters
-
data The data to free.
Constructor & Destructor Documentation
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noexcept |
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override noexcept |
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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.
- Parameters
-
bytes Input data.
void Gio::MemoryInputStream::add_data | ( | const std::string & | data | ) |
Appends to data that can be read from the input stream.
- Parameters
-
data Input data.
- Deprecated:
- Use add_data() with SlotDestroyData or GDestroyNotify instead.
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 be 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 add_data() with SlotDestroyData or GDestroyNotify instead.
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
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data Input data. len Length of the data, may be -1 if data is a nul-terminated string. destroy Function 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
-
data Input data. len Length of the data, may be -1 if data is a null-terminated string. destroy_slot A slot to be called to free the data when it is no longer needed.
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static |
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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.
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.
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noexcept |
Friends And Related Function Documentation
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related |
A Glib::wrap() method for this object.
- Parameters
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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.