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spa: libcamera: source: add eventfd to loop while locked

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While concurrent `spa_loop_add_source()` invocations work with the current
main epoll-based implementation, this is not guaranteed, so lock the loop.
Similarly to how it is done elsewhere and for removal already.
This commit is contained in:
Barnabás Pőcze 2025-08-10 22:45:44 +02:00
parent 1f60cd291f
commit 507688e6c9
1 changed files with 10 additions and 1 deletions
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11
spa/plugins/libcamera/libcamera-source.cpp
View file

@ -1350,7 +1350,16 @@ int spa_libcamera_stream_on(struct impl *impl)
impl->source.data = impl;
impl->source.mask = SPA_IO_IN | SPA_IO_ERR;
impl->source.rmask = 0;
res = spa_loop_add_source(impl->data_loop, &impl->source);
res = spa_loop_locked(
impl->data_loop,
[](spa_loop *, bool, uint32_t, const void *, size_t, void *user_data)
{
auto *impl = static_cast<struct impl *>(user_data);
return spa_loop_add_source(impl->data_loop, &impl->source);
},
0, nullptr, 0, impl
);
if (res < 0)
goto err_close_source;