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libcamera: base: Add mutex classes with thread safety annotations

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This replaces Mutex and MutexLocker with our own defined classes.
The classes are annotated by clang thread safety annotations.
So we can add annotation to code where the classes are used.

v4l2 code needs to be annotated, which violates Mutex capability.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Hirokazu Honda 2021-12-01 16:53:41 +09:00 • committed by Laurent Pinchart
parent 16efd83f5d
commit c17f172842
7 changed files with 192 additions and 23 deletions
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7
include/libcamera/base/thread.h
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@ -7,15 +7,14 @@
#pragma once
#include <condition_variable>
#include <memory>
#include <mutex>
#include <sys/types.h>
#include <thread>
#include <libcamera/base/private.h>
#include <libcamera/base/message.h>
#include <libcamera/base/mutex.h>
#include <libcamera/base/signal.h>
#include <libcamera/base/utils.h>
@ -27,10 +26,6 @@ class Object;
class ThreadData;
class ThreadMain;
using ConditionVariable = std::condition_variable;
using Mutex = std::mutex;
using MutexLocker = std::unique_lock<std::mutex>;
class Thread
{
public: