BufferedInputStream

Buffered input stream implements GFilterInputStream and provides for buffered reads.

By default, GBufferedInputStream's buffer size is set at 4 kilobytes.

To create a buffered input stream, use g_buffered_input_stream_new(), or g_buffered_input_stream_new_sized() to specify the buffer's size at construction.

To get the size of a buffer within a buffered input stream, use g_buffered_input_stream_get_buffer_size(). To change the size of a buffered input stream's buffer, use g_buffered_input_stream_set_buffer_size(). Note that the buffer's size cannot be reduced below the size of the data within the buffer.

class BufferedInputStream : FilterInputStream {

protected

GBufferedInputStream* gBufferedInputStream;

GBufferedInputStream* getBufferedInputStreamStruct();

void* getStruct();

this(GBufferedInputStream* gBufferedInputStream);

void setStruct(GObject* obj);

this(InputStream baseStream);

this(InputStream baseStream, gsize size);

gsize getBufferSize();

void setBufferSize(gsize size);

gsize getAvailable();

void* peekBuffer(gsize count);

gsize peek(void* buffer, gsize offset, gsize count);

gssize fill(gssize count, Cancellable cancellable);

void fillAsync(gssize count, int ioPriority, Cancellable cancellable, GAsyncReadyCallback callback, void* userData);

gssize fillFinish(AsyncResultIF result);

int readByte(Cancellable cancellable);

}

Constructors

this this(GBufferedInputStream* gBufferedInputStream): Sets our main struct and passes it to the parent class
this this(InputStream baseStream): Creates a new GInputStream from the given base_stream, with a buffer set to the default size (4 kilobytes).
this this(InputStream baseStream, gsize size): Creates a new GBufferedInputStream from the given base_stream, with a buffer set to size.

Members

Functions

fill gssize fill(gssize count, Cancellable cancellable): Tries to read count bytes from the stream into the buffer. Will block during this read. If count is zero, returns zero and does nothing. A value of count larger than G_MAXSSIZE will cause a G_IO_ERROR_INVALID_ARGUMENT error. On success, the number of bytes read into the buffer is returned. It is not an error if this is not the same as the requested size, as it can happen e.g. near the end of a file. Zero is returned on end of file (or if count is zero), but never otherwise. If count is -1 then the attempted read size is equal to the number of bytes that are required to fill the buffer. If cancellable is not NULL, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error G_IO_ERROR_CANCELLED will be returned. If an operation was partially finished when the operation was cancelled the partial result will be returned, without an error. On error -1 is returned and error is set accordingly. For the asynchronous, non-blocking, version of this function, see g_buffered_input_stream_fill_async().
fillAsync void fillAsync(gssize count, int ioPriority, Cancellable cancellable, GAsyncReadyCallback callback, void* userData): Reads data into stream's buffer asynchronously, up to count size. io_priority can be used to prioritize reads. For the synchronous version of this function, see g_buffered_input_stream_fill(). If count is -1 then the attempted read size is equal to the number of bytes that are required to fill the buffer.
fillFinish gssize fillFinish(AsyncResultIF result): Finishes an asynchronous read.
getAvailable gsize getAvailable(): Gets the size of the available data within the stream.
getBufferSize gsize getBufferSize(): Gets the size of the input buffer.
getBufferedInputStreamStruct GBufferedInputStream* getBufferedInputStreamStruct(): Get the main Gtk struct
getStruct void* getStruct(): the main Gtk struct as a void*
peek gsize peek(void* buffer, gsize offset, gsize count): Peeks in the buffer, copying data of size count into buffer, offset offset bytes.
peekBuffer void* peekBuffer(gsize count): Returns the buffer with the currently available bytes. The returned buffer must not be modified and will become invalid when reading from the stream or filling the buffer.
readByte int readByte(Cancellable cancellable): Tries to read a single byte from the stream or the buffer. Will block during this read. On success, the byte read from the stream is returned. On end of stream -1 is returned but it's not an exceptional error and error is not set. If cancellable is not NULL, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error G_IO_ERROR_CANCELLED will be returned. If an operation was partially finished when the operation was cancelled the partial result will be returned, without an error. On error -1 is returned and error is set accordingly.
setBufferSize void setBufferSize(gsize size): Sets the size of the internal buffer of stream to size, or to the size of the contents of the buffer. The buffer can never be resized smaller than its current contents.
setStruct void setStruct(GObject* obj): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

gBufferedInputStream GBufferedInputStream* gBufferedInputStream;: the main Gtk struct

Inherited Members

From FilterInputStream

gFilterInputStream GFilterInputStream* gFilterInputStream;: the main Gtk struct
getFilterInputStreamStruct GFilterInputStream* getFilterInputStreamStruct(): Get the main Gtk struct
getStruct void* getStruct(): the main Gtk struct as a void*
setStruct void setStruct(GObject* obj): Undocumented in source. Be warned that the author may not have intended to support it.
getBaseStream InputStream getBaseStream(): Gets the base stream for the filter stream.
getCloseBaseStream int getCloseBaseStream(): Returns whether the base stream will be closed when stream is closed.
setCloseBaseStream void setCloseBaseStream(int closeBase): Sets whether the base stream will be closed when stream is closed.