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libcamera: pipeline_handler: Split request queueing

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In order to prepare to handle synchronization fences at Request
queueing time, split the PipelineHandler::queueRequest() function in
two, by creating a list of waiting requests and introducing the
doQueueRequest() function that queues requests to the device in the
order the pipeline has received them.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Jacopo Mondi 2021-10-26 15:10:43 +02:00
parent a645898af5
commit 6cd5c958b7
3 changed files with 42 additions and 0 deletions
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6
include/libcamera/internal/pipeline_handler.h
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@ -8,6 +8,7 @@
#pragma once
#include <memory>
#include <queue>
#include <set>
#include <string>
#include <sys/types.h>
@ -76,9 +77,14 @@ private:
void mediaDeviceDisconnected(MediaDevice *media);
virtual void disconnect();
void doQueueRequest(Request *request);
void doQueueRequests();
std::vector<std::shared_ptr<MediaDevice>> mediaDevices_;
std::vector<std::weak_ptr<Camera>> cameras_;
std::queue<Request *> waitingRequests_;
const char *name_;
friend class PipelineHandlerFactory;