Comparison between WF and Windows

Comparison between WF and Windows

-- Interpreting the core principles of WF through AEC (11) (additional topic)

Sometimes, during Activity development, there is always a feeling similar to the previous one, such as C, if I forget to release the pointer, I will always hit myself. When developing the Activity, I forgot to Close and I will hit myself ......

I think the structure of WF has many similarities with the operating system. I will compare it below:

 

Item	WF	Operating System
Host, Computer	Host: WorkflowRuntime, parasitic Environment	COMPUTER: Operating System parasitic Environment
WorkflowRuntime, Operating System	WorkflowRuntime: Workflow running environment	Operating System: Application running environment
Workflow, Applications	Workflow: Independent code units that can run in WorkflowRuntime to complete various business functions	Application: Independent code units that can run in the operating system to complete various business functions
Instance, Process	Instance: An activation status of a workflow in WorkflowRuntime	Process: An activation status of an application in the operating system
WF load service, Driver	WF load service: It is loaded by WorkflowRuntime to provide some function or interface for the workflow instance.	Driver: Loaded by the operating system to provide a certain function or interface for the application process
Activity (DLL) format workflow, Win32 format Program	Activity (DLL) format workflow: The basic format of the WF workflow, WF's "local code"	Win32 format program: Windows operating system basic format, local code"
Xoml workflow, NET format Program	Xoml workflow format: A file that describes execution logic in string mode. It can be interpreted by defaworkworkflowloaderservice WF's "Local Code" runs in WorkflowRuntime	NET format program: A file that describes execution logic in string mode. It can be interpreted by the NET Framework as "Local Code" running in the operating system.
DefaultWorkflowLoaderService, NET Framework	DefaultWorkflowLoaderService: Xoml interpreter. WF is loaded by default.	NET Framework: The interpreter of the. NET format program, which is installed by default in the operating system.
Workflow in other formats, Java format Program	Other workflow formats: WF can load workflow descriptors in other xml formats, but it must be implemented based on WorkflowLoaderService and loaded to WorkflowRuntime.	Java format program: It can run in windows, but you need to install a Java Virtual Machine
Custom WorkflowLoaderService, Java Virtual Machine	Custom WorkflowLoaderService: Interpreter that implements custom workflow description format	Java virtual machine: An intermediate environment that explains Java programs and runs them in the operating system
Parallel, Thread	Parallelism: The ParallelActivity of WF does not enable threads to implement parallel branches, but performs staggered execution on different branches to achieve parallel results.	Thread: The multithreading of the Windows operating system does not rely on multi-core CPUs. It can be executed in an staggered manner to achieve multi-thread parallel performance.
WorkflowQueuingService, System message	WorkflowQueuingService: WF provides a communication response interface for interaction, such as AEC, WorkflowRuntimeService, and IServiceProvider.	System message: A communication response interface provided by the operating system for interaction, Hook, SetWindowsHookEx, and CallNextHookEx
Persistence, Sleep (not standby)	Persistence: WF can save the instances in WorkflowRuntime. When WorkflowRuntime is disabled, start WorkflowRuntime to continue running the instances.	Sleep: The Windows operating system can save the currently running system to the disk, and then power off. After restarting, you can continue to use the processes running in the system before hibernation.
Persistence, Virtual Memory	Persistence: WF can save non-running instances in WorkflowRuntime to disks to save memory. When the instance needs to continue running, it is loaded from the disk to the memory.	Virtual Memory: Processes that do not run in windows are saved to the disk to save memory. Load the process from disk to memory when it needs to continue running
WF, Operating System	WF: A program running in the operating system	Operating System: Maybe one day, you can use a visual development environment like WF to design an operating system.

 

Note:

From the same point of view, you will find that the pencil is the same as the Sun. From the difference, the difference between the two water molecules cannot be described in 13.7 billion years. This article is not a technical article, some of them are not accurate, just a joke about the technology.