d09838ef3e
Add a cancel() function to the Request class that allows to forcefully complete the request and its associated buffers in error state. Only pending requests can be forcefully cancelled. Enforce that by asserting the request state to be RequestPending. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
88 lines
1.8 KiB
C++
88 lines
1.8 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* request.h - Capture request handling
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*/
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#ifndef __LIBCAMERA_REQUEST_H__
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#define __LIBCAMERA_REQUEST_H__
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#include <map>
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#include <memory>
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#include <stdint.h>
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#include <string>
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#include <unordered_set>
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#include <libcamera/class.h>
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#include <libcamera/controls.h>
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#include <libcamera/signal.h>
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namespace libcamera {
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class Camera;
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class CameraControlValidator;
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class FrameBuffer;
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class Stream;
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class Request
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{
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public:
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enum Status {
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RequestPending,
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RequestComplete,
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RequestCancelled,
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};
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enum ReuseFlag {
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Default = 0,
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ReuseBuffers = (1 << 0),
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};
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using BufferMap = std::map<const Stream *, FrameBuffer *>;
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Request(Camera *camera, uint64_t cookie = 0);
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~Request();
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void reuse(ReuseFlag flags = Default);
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ControlList &controls() { return *controls_; }
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ControlList &metadata() { return *metadata_; }
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const BufferMap &buffers() const { return bufferMap_; }
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int addBuffer(const Stream *stream, FrameBuffer *buffer);
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FrameBuffer *findBuffer(const Stream *stream) const;
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uint32_t sequence() const { return sequence_; }
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uint64_t cookie() const { return cookie_; }
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Status status() const { return status_; }
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bool hasPendingBuffers() const { return !pending_.empty(); }
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std::string toString() const;
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private:
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LIBCAMERA_DISABLE_COPY(Request)
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friend class PipelineHandler;
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void complete();
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void cancel();
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bool completeBuffer(FrameBuffer *buffer);
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Camera *camera_;
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CameraControlValidator *validator_;
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ControlList *controls_;
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ControlList *metadata_;
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BufferMap bufferMap_;
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std::unordered_set<FrameBuffer *> pending_;
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uint32_t sequence_;
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const uint64_t cookie_;
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Status status_;
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bool cancelled_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_REQUEST_H__ */
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