OutputStream

open class OutputStream(pointer: <Error class: unknown class><<Error class: unknown class>>)

GOutputStream is a base class for implementing streaming output.

It has functions to write to a stream (method@Gio.OutputStream.write), to close a stream (method@Gio.OutputStream.close) and to flush pending writes (method@Gio.OutputStream.flush).

To copy the content of an input stream to an output stream without manually handling the reads and writes, use method@Gio.OutputStream.splice.

See the documentation for class@Gio.IOStream for details of thread safety of streaming APIs.

All of these functions have async variants too.

All classes derived from GOutputStream should implement synchronous writing, splicing, flushing and closing streams, but may implement asynchronous versions.

Skipped during bindings generation

  • parameter buffer: Array parameter of type guint8 is not supported

  • parameter buffer: Array parameter of type guint8 is not supported

  • parameter buffer: Array parameter of type guint8 is not supported

  • parameter bytes_written: bytes_written: Out parameter is not supported

  • parameter buffer: Array parameter of type guint8 is not supported

  • parameter vectors: OutputVector

  • parameter vectors: OutputVector

  • parameter vectors: OutputVector

  • parameter bytes_written: bytes_written: Out parameter is not supported

  • parameter vectors: OutputVector

  • parameter bytes_written: bytes_written: Out parameter is not supported

Inheritors

Constructors

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constructor(pointer: <Error class: unknown class><<Error class: unknown class>>)

Types

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object Companion

Properties

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val gioOutputStreamPointer: <Error class: unknown class><<Error class: unknown class>>

Functions

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open fun clearPending()

Clears the pending flag on @stream.

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open fun close(cancellable: Cancellable? = null): <Error class: unknown class><Boolean>

Closes the stream, releasing resources related to it.

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open fun closeAsync(ioPriority: Int, cancellable: Cancellable? = null, callback: AsyncReadyCallback)

Requests an asynchronous close of the stream, releasing resources related to it. When the operation is finished @callback will be called. You can then call g_output_stream_close_finish() to get the result of the operation.

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open fun closeFinish(result: AsyncResult): <Error class: unknown class><Boolean>

Closes an output stream.

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open fun flush(cancellable: Cancellable? = null): <Error class: unknown class><Boolean>

Forces a write of all user-space buffered data for the given

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open fun flushAsync(ioPriority: Int, cancellable: Cancellable? = null, callback: AsyncReadyCallback)

Forces an asynchronous write of all user-space buffered data for the given @stream. For behaviour details see g_output_stream_flush().

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open fun flushFinish(result: AsyncResult): <Error class: unknown class><Boolean>

Finishes flushing an output stream.

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open fun hasPending(): Boolean

Checks if an output stream has pending actions.

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open fun isClosed(): Boolean

Checks if an output stream has already been closed.

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open fun isClosing(): Boolean

Checks if an output stream is being closed. This can be used inside e.g. a flush implementation to see if the flush (or other i/o operation) is called from within the closing operation.

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open fun setPending(): <Error class: unknown class><Boolean>

Sets @stream to have actions pending. If the pending flag is already set or @stream is closed, it will return false and set

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open fun splice(source: InputStream, flags: OutputStreamSpliceFlags, cancellable: Cancellable? = null): <Error class: unknown class><Long>

Splices an input stream into an output stream.

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open fun spliceAsync(source: InputStream, flags: OutputStreamSpliceFlags, ioPriority: Int, cancellable: Cancellable? = null, callback: AsyncReadyCallback)

Splices a stream asynchronously. When the operation is finished @callback will be called. You can then call g_output_stream_splice_finish() to get the result of the operation.

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open fun spliceFinish(result: AsyncResult): <Error class: unknown class><Long>

Finishes an asynchronous stream splice operation.

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open fun writeBytes(bytes: <Error class: unknown class>, cancellable: Cancellable? = null): <Error class: unknown class><Long>

A wrapper function for g_output_stream_write() which takes a #GBytes as input. This can be more convenient for use by language bindings or in other cases where the refcounted nature of #GBytes is helpful over a bare pointer interface.

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open fun writeBytesAsync(bytes: <Error class: unknown class>, ioPriority: Int, cancellable: Cancellable? = null, callback: AsyncReadyCallback)

This function is similar to g_output_stream_write_async(), but takes a #GBytes as input. Due to the refcounted nature of #GBytes, this allows the stream to avoid taking a copy of the data.

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open fun writeBytesFinish(result: AsyncResult): <Error class: unknown class><Long>

Finishes a stream write-from-#GBytes operation.

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open fun writeFinish(result: AsyncResult): <Error class: unknown class><Long>

Finishes a stream write operation.