ICLRHostBindingPolicyManager::EvaluatePolicy Method

Article
09/15/2021

Evaluates binding policy on behalf of the host.

Syntax

HRESULT EvaluatePolicy (  
    [in] LPCWSTR     pwzReferenceIdentity,  
    [in] BYTE       *pbApplicationPolicy,  
    [in] DWORD       cbAppPolicySize,  
    [out, size_is(*pcchPostPolicyReferenceIdentity)] LPWSTR pwzPostPolicyReferenceIdentity,  
    [in, out] DWORD *pcchPostPolicyReferenceIdentity,  
    [out] DWORD     *pdwPoliciesApplied  
);

Parameters

pwzReferenceIdentity
[in] A reference to the assembly before the policy evaluation.

pbApplicationPolicy
[in] A pointer to a buffer that contains the policy data.

cbAppPolicySize
[in] The size of the pbApplicationPolicy buffer.

pwzPostPolicyReferenceIdentity
[out] A reference to the assembly after the evaluation of the new policy data.

pcchPostPolicyReferenceIdentity
[in, out] A pointer to the size of the assembly identity reference buffer after the evaluation of the new policy data.

pdwPoliciesApplied
[out] A pointer to a logical OR combination of EBindPolicyLevels values, indicating which policies have been applied.

Return Value

HRESULT	Description
S_OK	The evaluation completed successfully.
E_INVALIDARG	Either `pwzReferenceIdentity` or `pbApplicationPolicy` is a null reference.
ERROR_INSUFFICIENT_BUFFER	`cbAppPolicySize` is too small.
HOST_E_CLRNOTAVAILABLE	The common language runtime (CLR) has not been loaded into a process, or the CLR is in a state in which it cannot run managed code or process the call successfully.
HOST_E_TIMEOUT	The call timed out.
HOST_E_NOT_OWNER	The caller does not own the lock.
HOST_E_ABANDONED	An event was canceled while a blocked thread or fiber was waiting on it.
E_FAIL	An unknown catastrophic failure occurred. After a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.

Remarks

The EvaluatePolicy method allows the host to influence binding policy to maintain host-specific assembly versioning requirements. The policy engine itself remains inside the CLR.

Requirements

Platforms: See System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: Available since 2.0

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