Request an asynchronous write of
buffer.length bytes from
buffer into the stream.
When the operation is finished
callback will be called. You can then call write_async.end 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
buffer.length larger than g_maxssize will cause a
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 this 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 asynchronous 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 write.
Note that no copy of
buffer will be made, so it must stay valid until
callback is called. See
write_bytes_async for a
Bytes version that will automatically hold a reference to the contents (without copying)
for the duration of the call.
the buffer containing the data to write.
the io priority of the request.
optional Cancellable object, null to ignore.
callback to call when the request is satisfied
the number of bytes to write
the data to pass to callback function