pollableStreamRead
fn
ptrdiff_t pollableStreamRead(gio.input_stream.InputStream stream, ubyte[] buffer, bool blocking, gio.cancellable.Cancellable cancellable = null)Tries to read from stream, as with gio.input_stream.InputStream.read (if blocking is true) or gio.pollable_input_stream.PollableInputStream.readNonblocking (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 #GPollableInputStream for which gio.pollable_input_stream.PollableInputStream.canPoll returns true, or else the behavior is undefined. If blocking is true, then stream does not need to be a #GPollableInputStream.
Parameters
stream | a #GInputStream |
buffer | a buffer to read data into |
blocking | whether to do blocking I/O |
cancellable | optional #GCancellable object, null to ignore. |
Returns
the number of bytes read, or -1 on error.