Tries to write buffer.length bytes from buffer into the stream.
Will block during the operation.
If count is 0, returns 0 and does nothing. A value of buffer.length 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 buffer.length 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 throws is set accordingly.
| this |
a OutputStream. |
| buffer |
the buffer containing the data to write. |
| cancellable |
optional cancellable object |
| count |
the number of bytes to write |
|
Number of bytes written, or -1 on error |