/// <summary>
/// Add the given string to the cache or return the existing string if it is already
/// in the cache.
/// Constant time operation.
/// </summary>
public string Add(string key, XmlDocument document)
{
if (key.Length == 0)
{
return(String.Empty);
}
// see Microsoft.Build.BackEnd.BuildRequestConfiguration.CreateUniqueGlobalProperty
if (key.StartsWith(MSBuildConstants.MSBuildDummyGlobalPropertyHeader, StringComparison.Ordinal))
{
return(key);
}
lock (_locker)
{
VerifyState();
StringCacheEntry entry;
HashSet <StringCacheEntry> entries;
bool seenString = _strings.TryGetValue(key, out entry);
bool seenDocument = _documents.TryGetValue(document, out entries);
if (!seenString)
{
entry = new StringCacheEntry(key);
_strings.Add(entry);
}
if (!seenDocument)
{
entries = new HashSet <StringCacheEntry>();
_documents.Add(document, entries);
}
bool seenStringInThisDocument = seenString && seenDocument && entries.Contains(entry);
if (!seenStringInThisDocument)
{
entries.Add(entry);
// We've been referred to by a new document, so increment our ref count.
entry.Increment();
}
VerifyState();
return(entry.CachedString);
}
}
/// <summary>
/// Add the given string to the cache or return the existing string if it is already
/// in the cache.
/// Constant time operation.
/// </summary>
public string Add(string key, XmlDocument document)
{
if (key.Length == 0)
{
return(String.Empty);
}
lock (_locker)
{
VerifyState();
StringCacheEntry entry;
HashSet <StringCacheEntry> entries;
bool seenString = _strings.TryGetValue(key, out entry);
bool seenDocument = _documents.TryGetValue(document, out entries);
if (!seenString)
{
entry = new StringCacheEntry(key);
_strings.Add(entry);
}
if (!seenDocument)
{
entries = new HashSet <StringCacheEntry>();
_documents.Add(document, entries);
}
bool seenStringInThisDocument = seenString && seenDocument && entries.Contains(entry);
if (!seenStringInThisDocument)
{
entries.Add(entry);
// We've been referred to by a new document, so increment our ref count.
entry.Increment();
}
VerifyState();
return(entry.CachedString);
}
}
/// <summary>
/// Add the given string to the cache or return the existing string if it is already
/// in the cache.
/// Constant time operation.
/// </summary>
public string Add(string key, XmlDocument document)
{
if (key.Length == 0)
{
return String.Empty;
}
lock (_locker)
{
VerifyState();
StringCacheEntry entry;
HashSet<StringCacheEntry> entries;
bool seenString = _strings.TryGetValue(key, out entry);
bool seenDocument = _documents.TryGetValue(document, out entries);
if (!seenString)
{
entry = new StringCacheEntry(key);
_strings.Add(entry);
}
if (!seenDocument)
{
entries = new HashSet<StringCacheEntry>();
_documents.Add(document, entries);
}
bool seenStringInThisDocument = seenString && seenDocument && entries.Contains(entry);
if (!seenStringInThisDocument)
{
entries.Add(entry);
// We've been referred to by a new document, so increment our ref count.
entry.Increment();
}
VerifyState();
return entry.CachedString;
}
}
