39 #ifndef _PLT_MEDIA_CACHE_H_
40 #define _PLT_MEDIA_CACHE_H_
54 template <
typename T,
typename U>
58 typedef typename NPT_Map<NPT_String,T>::Entry ElementEntry;
59 typedef typename NPT_List<ElementEntry*>::Iterator ElementIterator;
64 NPT_Result Put(
const char* root,
const char* key, T& value, U* tag = NULL);
65 NPT_Result Get(
const char* root,
const char* key, T& value, U* tag = NULL);
66 NPT_Result Clear(
const char* root,
const char* key);
67 NPT_Result Clear(
const char* root = NULL);
71 NPT_String GenerateKey(
const char* root,
const char* key);
76 NPT_Map<NPT_String, T> m_Items;
77 NPT_Map<NPT_String, U> m_Tags;
83 template <
typename T,
typename U>
89 NPT_String result = root;
98 template <
typename T,
typename U>
106 NPT_AutoLock lock(m_Mutex);
108 NPT_String fullkey = GenerateKey(root, key);
109 if (fullkey.GetLength() == 0)
return NPT_ERROR_INVALID_PARAMETERS;
111 m_Items.Erase(fullkey);
112 NPT_CHECK(m_Items.Put(fullkey, value));
114 if (tag) NPT_CHECK(m_Tags.Put(fullkey, *tag));
122 template <
typename T,
typename U>
130 NPT_AutoLock lock(m_Mutex);
132 NPT_String fullkey = GenerateKey(root, key);
133 if (fullkey.GetLength() == 0)
return NPT_ERROR_INVALID_PARAMETERS;
136 NPT_CHECK(m_Items.Get(fullkey, _value));
140 m_Tags.Get(fullkey, _tag);
141 if (_tag) *tag = *_tag;
151 template <
typename T,
typename U>
156 NPT_AutoLock lock(m_Mutex);
158 NPT_String fullkey = GenerateKey(root, key);
159 if (fullkey.GetLength() == 0)
return NPT_ERROR_INVALID_PARAMETERS;
161 ElementIterator entries = m_Items.GetEntries().GetFirstItem();
162 ElementIterator entry;
165 if ((*entry)->GetKey() == (fullkey)) {
166 m_Items.Erase(fullkey);
167 m_Tags.Erase(fullkey);
172 return NPT_ERROR_NO_SUCH_ITEM;
178 template <
typename T,
typename U>
183 NPT_AutoLock lock(m_Mutex);
185 if (!root || root[0]==
'\0')
186 return m_Items.Clear();
188 NPT_String key = GenerateKey(root,
"");
189 ElementIterator entries = m_Items.GetEntries().GetFirstItem();
190 ElementIterator entry;
193 NPT_String entry_key = (*entry)->GetKey();
194 if (entry_key.StartsWith(key)) {
195 m_Items.Erase(entry_key);
196 m_Tags.Erase(entry_key);