Virtual Method

GioPollableOutputStreamis_writable

since: 2.28

Declaration

gboolean
is_writable (
  GPollableOutputStream* stream
)

Description

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.

Available since: 2.28

Return value

Type: gboolean

TRUE if stream is writable, FALSE if not. If an error has occurred on stream, this will result in g_pollable_output_stream_is_writable() returning TRUE, and the next attempt to write will return the error.