summaryrefslogtreecommitdiff
path: root/src/libcamera/message.cpp
AgeCommit message (Collapse)Author
2020-01-07libcamera: bound_method: Manage BoundMethodPack through std::shared_ptrLaurent Pinchart
The bound method arguments pack will need to be accessed by the method invoker in order to retrieve the method return value when using a blocking connection type. We thus can't delete the pack unconditionally in the bound method target thread. We also can't delete it unconditionally in the invoker's thread, as for queued connections the pack will be used in the target thread after the invoker completes. This shows that ownership of the arguments pack is shared between two contexts. As a result, manage it using std::shared_ptr<>. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-18libcamera: Remove space between empty curly bracketsLaurent Pinchart
Remove spaces between empty curly brackets (replacing { } with {}) to comply with the coding style. Fix one other coding style violation on the lines touched by those fixes. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-08libcamera: Remove unneeded semicolonsLaurent Pinchart
Comply with the coding style by removing lots of unneeded semicolons. Fix a few other coding style violations on the lines touched by those fixes. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-10-29libcamera: bound_method: Support connection typesLaurent Pinchart
Support all connection types in the BoundMethodBase::activePack() method. To support this, add a semaphore to the InvokeMessage to signal delivery. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-08-17libcamera: object: Notify objects of thread moveLaurent Pinchart
Send a synchronous message to objects just before they get moved to a new thread. This allows the object to perform any required processing. EventNotifier and Timer objects will use this mechanism to move themselves to the new thread's event disaptcher. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-08-17libcamera: object: Add an asynchronous method invocation methodLaurent Pinchart
Add a helper invokeMethod() to the Object class that allows asynchrnous invocation of any method of an Object instance. Asynchronous invocation occurs when control returns to the event dispatcher of the target object's thread, in the context of that thread. To support this, generalise the SignalMessage implementation to support automatic deletion of the associated BoundMethod, and rename the message to InvokeMessage to reflect the more generic purpose. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-08-17libcamera: signal: Split Slot implementation to reusable classesLaurent Pinchart
Move the Slot* classes to bound_method.{h,cpp} and rename them to Bound*Method*. They will be reused to implement asynchronous method invocation similar to cross-thread signal delivery. This is only a move and rename, no functional changes are included. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-07-16libcamera: message: Add user message typesJacopo Mondi
Reserve identifiers for user-defined message types and add an operation to the Message class to register the type identifiers. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-07-16libcamera: message: Document Message::SignalMessageLaurent Pinchart
The SignalMessage type is undocumented. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-07-11libcamera: signal: Support cross-thread signalsLaurent Pinchart
Allow signals to cross thread boundaries by posting them to the recipient through messages instead of calling the slot directly when the recipient lives in a different thread. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-07-11libcamera: thread: Add a messaging passing APILaurent Pinchart
Create a new Message class to model a message that can be passed to an object living in another thread. Only an invalid message type is currently defined, more messages will be added in the future. The Thread class is extended with a messages queue, and the Object class with thread affinity. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>