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Handle new Context creation API on the FFI

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This adopts the FFI API to use the new Context::new() and
Contest::drop() Rust-style APIs while preserving the semantics of the
existing FFI API.  It introduces a wrapper around the context which
keeps an optional reference to the actual context, changing dc_open()
and dc_close() to create/destroy the actual reference.

This changes the events emitted on closing slightly: they only get
emitted when dc_close() was called while the context was open.  While
dc_close() remains idempotent in that it can still be called safely
multiple times, the close events will only occur if the context is
actually closed.
This commit is contained in:
Floris Bruynooghe
2019-09-13 23:49:19 +02:00
committed by Floris Bruynooghe
parent afc9a31080
commit a3f64d4e95
4 changed files with 710 additions and 505 deletions
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14
python/tests/test_lowlevel.py
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@@ -17,11 +17,19 @@ def test_callback_None2int():
clear_context_callback(ctx)
def test_dc_close_events():
ctx = capi.lib.dc_context_new(capi.lib.py_dc_callback, ffi.NULL, ffi.NULL)
def test_dc_close_events(tmpdir):
ctx = ffi.gc(
capi.lib.dc_context_new(capi.lib.py_dc_callback, ffi.NULL, ffi.NULL),
lib.dc_context_unref,
)
evlog = EventLogger(ctx)
evlog.set_timeout(5)
set_context_callback(ctx, lambda ctx, evt_name, data1, data2: evlog(evt_name, data1, data2))
set_context_callback(
ctx,
lambda ctx, evt_name, data1, data2: evlog(evt_name, data1, data2)
)
p = tmpdir.join("hello.db")
lib.dc_open(ctx, p.strpath.encode("ascii"), ffi.NULL)
capi.lib.dc_close(ctx)
def find(info_string):