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author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-08-27 04:05:33 +0300 |
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committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2021-09-02 01:16:45 +0300 |
commit | 58720e1dc98186e79ef4e758a851b58df562f7b4 (patch) | |
tree | 00c8b9701e937dd1d7a47937bf1792cd623ef834 /src/qcam/assets/feathericons/edit-3.svg | |
parent | c4e2b00d51f150632b203f81866604168d2ac1ff (diff) |
libcamera: base: signal: Support connecting signals to functors
It can be useful to connect a signal to a functor, and in particular a
lambda function, while still operating in the context of a receiver
object (to support both object-based disconnection and queued
connections to Object instances).
Add a BoundMethodFunctor class to bind a functor, and a corresponding
Signal::connect() function. There is no corresponding disconnect()
function, as a lambda passed to connect() can't be later passed to
disconnect(). Disconnection typically uses disconnect(T *object), which
will cover the vast majority of use cases.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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