since: 2.34


g_pollable_stream_write (
  GOutputStream* stream,
  void* buffer,
  gsize count,
  gboolean blocking,
  GCancellable* cancellable,
  GError** error


Tries to write to stream, as with g_output_stream_write() (if blocking is TRUE) or g_pollable_output_stream_write_nonblocking() (if blocking is FALSE). This can be used to more easily share code between blocking and non-blocking implementations of a method.

If blocking is FALSE, then stream must be a GPollableOutputStream for which g_pollable_output_stream_can_poll() returns TRUE or else the behavior is undefined. If blocking is TRUE, then stream does not need to be a GPollableOutputStream.

Available since: 2.34



Type: GOutputStream

A GOutputStream.

The data is owned by the caller of the function.

Type: An array of guint8

The buffer containing the data to write.

The length of the array is specified in the count argument.
The data is owned by the caller of the function.

Type: gsize

The number of bytes to write.


Type: gboolean

Whether to do blocking I/O.


Type: GCancellable

Optional GCancellable object, NULL to ignore.

The argument can be NULL.
The data is owned by the caller of the function.

Type: GError **

The return location for a recoverable error.

The argument can be NULL.
If the return location is not NULL, then you must initialize it to a NULL GError*.
The argument will left initialized to NULL by the function if there are no errors.
In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: gssize

The number of bytes written, or -1 on error.