CODEWITHSUNDEEP
c#dll.net-assemblyfilelock
Ender KARADAG
Ender KARADAG

Reputation: 135

C# Avoid file lock when Assembly.Load

My situation is;

I am designing a plugin application, based on dynamically loading plugin assemblies more than one user may run the application that's hosted on a server machine. Application is auto-updating plugin assemblies from my live update server on its startup. So plugin files (and its satellite dlls should not be locked on file system.

 byte[] assemblyBytes = File.ReadAllBytes("asm-path");
 var assembly = Assembly.Load(assemblyBytes);

as expected not locking the dll file. but what if the dll I am loading has static reference dlls itself? they are locked on file system now.

to name files, lets say;

PL1_S and PL_COMMON also should not be locked in file like PL1 and PL2 assemblies

Any idea on how to solve that?

Upvotes: 2

Views: 3492

Answers (1)

Damien_The_Unbeliever
Damien_The_Unbeliever

Reputation: 239764

There is functionality already built in to do this, as used by e.g. ASP.Net. See Shadow Copying Assemblies:

Shadow copying enables assemblies that are used in an application domain to be updated without unloading the application domain. This is particularly useful for applications that must be available continuously, such as ASP.NET sites.

So just turn that on via the AppDomainSetup.ShadowCopyFiles when creating your AppDomains

Upvotes: 5

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