HTTP_CACHE_POLICY_TYPE enumeration (http.h)

The HTTP_CACHE_POLICY_TYPE enumeration type defines available cache policies. It is used to restrict the values of the Policy member of the HTTP_CACHE_POLICY structure, which in turn is used in the pCachePolicy parameter of the HttpAddFragmentToCache function to specify how a response fragment is cached.

Syntax

typedef enum _HTTP_CACHE_POLICY_TYPE {
  HttpCachePolicyNocache,
  HttpCachePolicyUserInvalidates,
  HttpCachePolicyTimeToLive,
  HttpCachePolicyMaximum
} HTTP_CACHE_POLICY_TYPE, *PHTTP_CACHE_POLICY_TYPE;

Constants

HttpCachePolicyNocache Do not cache this value at all.
HttpCachePolicyUserInvalidates Cache this value until the user provides a different one.
HttpCachePolicyTimeToLive Cache this value for a specified time and then remove it from the cache.
HttpCachePolicyMaximum Terminates the enumeration; not used to determine policy.

Requirements

Requirement	Value
Minimum supported client	Windows Vista, Windows XP with SP2 [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	http.h

See also

HTTP_CACHE_POLICY

HttpAddFragmentToCache