public void Process(System.Web.HttpContext current, IResponseArgs e)
{
//Use alternate cache key if provided
string key = e.RequestKey;
//If cached, serve it.
var c = cache.Get(key);
if (c != null)
{
Serve(current, e, c);
return;
}
//If not, let's cache it.
locks.TryExecute(key, 3000, delegate() {
c = cache.Get(key);
if (c == null)
{
using (var data = new MemoryStream()){
e.ResizeImageToStream(data);//Very long-running call
c = new MemCacheResult(data.CopyToBytes(true));
}
cache.Set(key, c);//Save to cache (may trigger cleanup)
}
Serve(current, e, c);
return;
});
}
public IVirtualFile GetFileIfCached(string virtualPath, System.Collections.Specialized.NameValueCollection queryString, IVirtualFile original)
{
//Use alternate cache key if provided
string key = original is IVirtualFileSourceCacheKey ? ((IVirtualFileSourceCacheKey)original).GetCacheKey(true) : original.VirtualPath;
//If cached, serve it.
CachedVirtualFile c = cache.Get(key);
if (c != null)
{
return(c);
}
//If not, let's cache it.
if ("mem".Equals(queryString["scache"], StringComparison.OrdinalIgnoreCase))
{
locks.TryExecute(key, 3000, delegate() {
c = cache.Get(key);
if (c == null)
{
using (Stream data = original.Open()) {//Very long-running call
c = new CachedVirtualFile(original.VirtualPath, StreamExtensions.CopyToBytes(data, true));
}
cache.Set(key, c);//Save to cache (may trigger cleanup)
}
});
return(c);
}
return(null);
}
public void TestTryExecuteThread()
{
for (int i = 0; i < loopCount; i++)
{
string key = "thekey";
p.TryExecute(key, timeoutMs, delegate() {
if (!Monitor.TryEnter(lockCheck))
{
testFailed = false;
}
else
{
if (sleepTime > 0)
{
Thread.Sleep(sleepTime);
}
Monitor.Exit(lockCheck);
}
});
}
}