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Prefer thread-safe G_DEFINE_TYPE and G_DEFINE_INTERFACE macros over
manual GType registration.
This is just a start... lots more to do.
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Rename e-fsutils to e-file-utils. This is where we'll add asynchronous
functions for common file I/O operations with EActivity integration.
Start with e_file_replace_contents_async() (and corresponding finish()
function). This is a simple wrapper for g_file_replace_contents_async()
which also returns an EActivity. It replaces e_write_file_uri().
Also redesign EIOActivity to -contain- a GAsyncResult rather than
implement the interface for itself. This is easier for now but I may
change my mind again when I figure out how to tie centralized error
reporting into the EActivity framework.
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EIOActivity implements the GAsyncResult interface, and the idea is to
use this instead of GSimpleAsyncResult. In addition to the features
offered by EActivity, it also contains GAsyncReadyCallback information
and a GCancellable.
- Calling e_activity_cancel() triggers the GCancellable.
- Calling e_activity_complete() triggers the GAsyncReadyCallback.
Functions that follow GIO's asynchronous pattern should return an
EIOActivity (cast as an EActivity) instead of 'void', so it can be
handed to an EShellBackend or whatever else dispatches activities.
This is not yet feature-complete. It's missing API for storing result
values and GErrors. I don't have a complete picture of the final API in
my head yet, so I'll copy things over from GSimpleAsyncResult as needed.
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