Sets our main struct and passes it to the parent class
Creates a new GUnixOutputStream for the given fd. If close_fd, is TRUE, the file descriptor will be closed when the output stream is destroyed.
Returns whether the file descriptor of stream will be closed when the stream is closed. Since 2.20
Return the UNIX file descriptor that the stream writes to. Since 2.20
the main Gtk struct as a void*
Get the main Gtk struct
Sets whether the file descriptor of stream shall be closed when the stream is closed. Since 2.20
the main Gtk struct
the main Gtk struct
Get the main Gtk struct
the main Gtk struct as a void*
Tries to write count bytes from buffer into the stream. Will block during the operation. If count is 0, returns 0 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 written to the stream is returned. It is not an error if this is not the same as the requested size, as it can happen e.g. on a partial I/O error, or if there is not enough storage in the stream. All writes block until at least one byte is written or an error occurs; 0 is never returned (unless count is 0). 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. Virtual: write_fn
Tries to write count bytes from buffer into the stream. Will block during the operation. This function is similar to g_output_stream_write(), except it tries to write as many bytes as requested, only stopping on an error. On a successful write of count bytes, TRUE is returned, and bytes_written is set to count. If there is an error during the operation FALSE is returned and error is set to indicate the error status, bytes_written is updated to contain the number of bytes written into the stream before the error occurred.
Splices an input stream into an output stream.
Forces a write of all user-space buffered data for the given stream. Will block during the operation. Closing the stream will implicitly cause a flush. This function is optional for inherited classes. 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.
Closes the stream, releasing resources related to it. Once the stream is closed, all other operations will return G_IO_ERROR_CLOSED. Closing a stream multiple times will not return an error. Closing a stream will automatically flush any outstanding buffers in the stream. Streams will be automatically closed when the last reference is dropped, but you might want to call this function to make sure resources are released as early as possible. Some streams might keep the backing store of the stream (e.g. a file descriptor) open after the stream is closed. See the documentation for the individual stream for details. On failure the first error that happened will be reported, but the close operation will finish as much as possible. A stream that failed to close will still return G_IO_ERROR_CLOSED for all operations. Still, it is important to check and report the error to the user, otherwise there might be a loss of data as all data might not be written. 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. Cancelling a close will still leave the stream closed, but there some streams can use a faster close that doesn't block to e.g. check errors. On cancellation (as with any error) there is no guarantee that all written data will reach the target.
Request an asynchronous write of count bytes from buffer into the stream. When the operation is finished callback will be called. You can then call g_output_stream_write_finish() to get the result of the operation. During an async request no other sync and async calls are allowed, and will result in G_IO_ERROR_PENDING errors. A value of count larger than G_MAXSSIZE will cause a G_IO_ERROR_INVALID_ARGUMENT error. On success, the number of bytes written will be passed to the callback. It is not an error if this is not the same as the requested size, as it can happen e.g. on a partial I/O error, but generally we try to write as many bytes as requested. You are guaranteed that this method will never fail with G_IO_ERROR_WOULD_BLOCK - if stream can't accept more data, the method will just wait until this changes. Any outstanding I/O request with higher priority (lower numerical value) will be executed before an outstanding request with lower priority. Default priority is G_PRIORITY_DEFAULT. The asyncronous methods have a default fallback that uses threads to implement asynchronicity, so they are optional for inheriting classes. However, if you override one you must override all. For the synchronous, blocking version of this function, see g_output_stream_write().
Finishes a stream write operation.
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. For the synchronous, blocking version of this function, see g_output_stream_splice().
Finishes an asynchronous stream splice operation.
Forces an asynchronous write of all user-space buffered data for the given stream. For behaviour details see g_output_stream_flush(). When the operation is finished callback will be called. You can then call g_output_stream_flush_finish() to get the result of the operation.
Finishes flushing an output stream.
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. For behaviour details see g_output_stream_close(). The asyncronous methods have a default fallback that uses threads to implement asynchronicity, so they are optional for inheriting classes. However, if you override one you must override all.
Closes an output stream.
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. Since 2.24
Checks if an output stream has already been closed.
Checks if an ouput stream has pending actions.
Sets stream to have actions pending. If the pending flag is already set or stream is closed, it will return FALSE and set error.
Clears the pending flag on stream.
Tries to write the data from bytes into the stream. Will block during the operation. If bytes is 0-length, returns 0 and does nothing. A GBytes larger than G_MAXSSIZE will cause a G_IO_ERROR_INVALID_ARGUMENT error. On success, the number of bytes written to the stream is returned. It is not an error if this is not the same as the requested size, as it can happen e.g. on a partial I/O error, or if there is not enough storage in the stream. All writes block until at least one byte is written or an error occurs; 0 is never returned (unless the size of bytes is 0). 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.
Request an asynchronous write of the data in bytes to the stream. When the operation is finished callback will be called. You can then call g_output_stream_write_bytes_finish() to get the result of the operation. During an async request no other sync and async calls are allowed, and will result in G_IO_ERROR_PENDING errors. A GBytes larger than G_MAXSSIZE will cause a G_IO_ERROR_INVALID_ARGUMENT error. On success, the number of bytes written will be passed to the callback. It is not an error if this is not the same as the requested size, as it can happen e.g. on a partial I/O error, but generally we try to write as many bytes as requested. You are guaranteed that this method will never fail with G_IO_ERROR_WOULD_BLOCK - if stream can't accept more data, the method will just wait until this changes. Any outstanding I/O request with higher priority (lower numerical value) will be executed before an outstanding request with lower priority. Default priority is G_PRIORITY_DEFAULT. For the synchronous, blocking version of this function, see g_output_stream_write_bytes().
Finishes a stream write-from-GBytes operation.
Get the main Gtk struct
the main Gtk struct as a void*
Checks if stream is actually pollable. Some classes may implement GPollableOutputStream but have only certain instances of that class be pollable. If this method returns FALSE, then the behavior of other GPollableOutputStream methods is undefined. For any given stream, the value returned by this method is constant; a stream cannot switch from pollable to non-pollable or vice versa. Since 2.28
Checks if stream can be written. Note that some stream types may not be able to implement this 100% reliably, and it is possible that a call to g_output_stream_write() after this returns TRUE would still block. To guarantee non-blocking behavior, you should always use g_pollable_output_stream_write_nonblocking(), which will return a G_IO_ERROR_WOULD_BLOCK error rather than blocking. Since 2.28
Creates a GSource that triggers when stream can be written, or cancellable is triggered or an error occurs. The callback on the source is of the GPollableSourceFunc type. As with g_pollable_output_stream_is_writable(), it is possible that the stream may not actually be writable even after the source triggers, so you should use g_pollable_output_stream_write_nonblocking() rather than g_output_stream_write() from the callback. Since 2.28
Attempts to write up to count bytes from buffer to stream, as with g_output_stream_write(). If stream is not currently writable, this will immediately return G_IO_ERROR_WOULD_BLOCK, and you can use g_pollable_output_stream_create_source() to create a GSource that will be triggered when stream is writable. Note that since this method never blocks, you cannot actually use cancellable to cancel it. However, it will return an error if cancellable has already been cancelled when you call, which may happen if you call this method after a source triggers due to having been cancelled. Virtual: write_nonblocking
GUnixOutputStream implements GOutputStream for writing to a UNIX file descriptor, including asynchronous operations. (If the file descriptor refers to a socket or pipe, this will use poll() to do asynchronous I/O. If it refers to a regular file, it will fall back to doing asynchronous I/O in another thread.)
Note that <gio/gunixoutputstream.h> belongs to the UNIX-specific GIO interfaces, thus you have to use the gio-unix-2.0.pc pkg-config file when using it.