public static NativeMethods.IAssemblyCache GetAssemblyCacheInterface(string CLRVersionString, bool FetchRuntimeHost, out NativeMethods.CCorRuntimeHost RuntimeHost)
{
NativeMethods.IClrMetaHostPolicy ClrMetaHostPolicy = (NativeMethods.IClrMetaHostPolicy)null;
RuntimeHost = (NativeMethods.CCorRuntimeHost)null;
NativeMethods.GetClrMetaHostPolicy(ref NativeMethods._metaHostPolicyClsIdGuid, ref NativeMethods._metaHostPolicyGuid, out ClrMetaHostPolicy);
if (ClrMetaHostPolicy == null)
{
return((NativeMethods.IAssemblyCache)null);
}
StringBuilder version = new StringBuilder("v", "v65535.65535.65535".Length);
version.Append(CLRVersionString);
int versionLength = version.Capacity;
int imageVersionLength = 0;
int pdwConfigFlags = 0;
NativeMethods.IClrRuntimeInfo requestedRuntime = (NativeMethods.IClrRuntimeInfo)ClrMetaHostPolicy.GetRequestedRuntime(NativeMethods.MetaHostPolicyFlags.MetaHostPolicyApplyUpgradePolicy, (string)null, (IStream)null, version, out versionLength, (StringBuilder)null, out imageVersionLength, out pdwConfigFlags, NativeMethods._clrRuntimeInfoGuid);
if (requestedRuntime == null)
{
return((NativeMethods.IAssemblyCache)null);
}
Marshal.ThrowExceptionForHR(((NativeMethods.CoInitializeEEDelegate)Marshal.GetDelegateForFunctionPointer(requestedRuntime.GetProcAddress("CoInitializeEE"), typeof(NativeMethods.CoInitializeEEDelegate)))(0U));
if (FetchRuntimeHost)
{
RuntimeHost = new NativeMethods.CCorRuntimeHost(requestedRuntime);
}
NativeMethods.CreateAssemblyCacheDelegate forFunctionPointer = (NativeMethods.CreateAssemblyCacheDelegate)Marshal.GetDelegateForFunctionPointer(requestedRuntime.GetProcAddress("CreateAssemblyCache"), typeof(NativeMethods.CreateAssemblyCacheDelegate));
NativeMethods.IAssemblyCache ppAsmCache = (NativeMethods.IAssemblyCache)null;
Marshal.ThrowExceptionForHR(forFunctionPointer(out ppAsmCache, 0U));
return(ppAsmCache);
}
public static bool VerifyCLRVersionInfo(Version v, string procArch)
{
bool flag = true;
NativeMethods.IClrMetaHostPolicy ClrMetaHostPolicy = (NativeMethods.IClrMetaHostPolicy)null;
NativeMethods.GetClrMetaHostPolicy(ref NativeMethods._metaHostPolicyClsIdGuid, ref NativeMethods._metaHostPolicyGuid, out ClrMetaHostPolicy);
if (ClrMetaHostPolicy == null)
{
return(false);
}
string str = v.ToString(3);
StringBuilder version = new StringBuilder("v", "v65535.65535.65535".Length);
version.Append(str);
int versionLength = version.Capacity;
int imageVersionLength = 0;
int pdwConfigFlags = 0;
try
{
if ((NativeMethods.IClrRuntimeInfo)ClrMetaHostPolicy.GetRequestedRuntime(NativeMethods.MetaHostPolicyFlags.MetaHostPolicyApplyUpgradePolicy, (string)null, (IStream)null, version, out versionLength, (StringBuilder)null, out imageVersionLength, out pdwConfigFlags, NativeMethods._clrRuntimeInfoGuid) == null)
{
flag = false;
}
}
catch (COMException ex)
{
flag = false;
if (ex.ErrorCode != -2146232576)
{
throw;
}
}
return(flag);
}
private static extern void GetClrMetaHostPolicy(ref Guid clsid, ref Guid iid, [MarshalAs(UnmanagedType.Interface)] out NativeMethods.IClrMetaHostPolicy ClrMetaHostPolicy);
