diff options
Diffstat (limited to 'indra/llcommon/llpriqueuemap.h')
-rw-r--r-- | indra/llcommon/llpriqueuemap.h | 290 |
1 files changed, 145 insertions, 145 deletions
diff --git a/indra/llcommon/llpriqueuemap.h b/indra/llcommon/llpriqueuemap.h index 7dd43d87ca..a0a0855109 100644 --- a/indra/llcommon/llpriqueuemap.h +++ b/indra/llcommon/llpriqueuemap.h @@ -1,145 +1,145 @@ -/** - * @file llpriqueuemap.h - * @brief Priority queue implementation - * - * $LicenseInfo:firstyear=2003&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ -#ifndef LL_LLPRIQUEUEMAP_H -#define LL_LLPRIQUEUEMAP_H - -#include <map> - -// -// Priority queue, implemented under the hood as a -// map. Needs to be done this way because none of the -// standard STL containers provide a representation -// where it's easy to reprioritize. -// - -template <class DATA> -class LLPQMKey -{ -public: - LLPQMKey(const F32 priority, DATA data) : mPriority(priority), mData(data) - { - } - - bool operator<(const LLPQMKey &b) const - { - if (mPriority > b.mPriority) - { - return true; - } - if (mPriority < b.mPriority) - { - return false; - } - if (mData > b.mData) - { - return true; - } - return false; - } - - F32 mPriority; - DATA mData; -}; - -template <class DATA_TYPE> -class LLPriQueueMap -{ -public: - typedef typename std::map<LLPQMKey<DATA_TYPE>, DATA_TYPE>::iterator pqm_iter; - typedef std::pair<LLPQMKey<DATA_TYPE>, DATA_TYPE> pqm_pair; - typedef void (*set_pri_fn)(DATA_TYPE &data, const F32 priority); - typedef F32 (*get_pri_fn)(DATA_TYPE &data); - - - LLPriQueueMap(set_pri_fn set_pri, get_pri_fn get_pri) : mSetPriority(set_pri), mGetPriority(get_pri) - { - } - - void push(const F32 priority, DATA_TYPE data) - { -#ifdef _DEBUG - pqm_iter iter = mMap.find(LLPQMKey<DATA_TYPE>(priority, data)); - if (iter != mMap.end()) - { - LL_ERRS() << "Pushing already existing data onto queue!" << LL_ENDL; - } -#endif - mMap.insert(pqm_pair(LLPQMKey<DATA_TYPE>(priority, data), data)); - } - - bool pop(DATA_TYPE *datap) - { - pqm_iter iter; - iter = mMap.begin(); - if (iter == mMap.end()) - { - return false; - } - *datap = (*(iter)).second; - mMap.erase(iter); - - return true; - } - - void reprioritize(const F32 new_priority, DATA_TYPE data) - { - pqm_iter iter; - F32 cur_priority = mGetPriority(data); - LLPQMKey<DATA_TYPE> cur_key(cur_priority, data); - iter = mMap.find(cur_key); - if (iter == mMap.end()) - { - LL_WARNS() << "Data not on priority queue!" << LL_ENDL; - // OK, try iterating through all of the data and seeing if we just screwed up the priority - // somehow. - for (pqm_pair pair : mMap) - { - if (pair.second == data) - { - LL_ERRS() << "Data on priority queue but priority not matched!" << LL_ENDL; - } - } - return; - } - - mMap.erase(iter); - mSetPriority(data, new_priority); - push(new_priority, data); - } - - S32 getLength() const - { - return (S32)mMap.size(); - } - - // Hack: public for use by the transfer manager, ugh. - std::map<LLPQMKey<DATA_TYPE>, DATA_TYPE> mMap; -protected: - void (*mSetPriority)(DATA_TYPE &data, const F32 priority); - F32 (*mGetPriority)(DATA_TYPE &data); -}; - -#endif // LL_LLPRIQUEUEMAP_H +/**
+ * @file llpriqueuemap.h
+ * @brief Priority queue implementation
+ *
+ * $LicenseInfo:firstyear=2003&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+#ifndef LL_LLPRIQUEUEMAP_H
+#define LL_LLPRIQUEUEMAP_H
+
+#include <map>
+
+//
+// Priority queue, implemented under the hood as a
+// map. Needs to be done this way because none of the
+// standard STL containers provide a representation
+// where it's easy to reprioritize.
+//
+
+template <class DATA>
+class LLPQMKey
+{
+public:
+ LLPQMKey(const F32 priority, DATA data) : mPriority(priority), mData(data)
+ {
+ }
+
+ bool operator<(const LLPQMKey &b) const
+ {
+ if (mPriority > b.mPriority)
+ {
+ return true;
+ }
+ if (mPriority < b.mPriority)
+ {
+ return false;
+ }
+ if (mData > b.mData)
+ {
+ return true;
+ }
+ return false;
+ }
+
+ F32 mPriority;
+ DATA mData;
+};
+
+template <class DATA_TYPE>
+class LLPriQueueMap
+{
+public:
+ typedef typename std::map<LLPQMKey<DATA_TYPE>, DATA_TYPE>::iterator pqm_iter;
+ typedef std::pair<LLPQMKey<DATA_TYPE>, DATA_TYPE> pqm_pair;
+ typedef void (*set_pri_fn)(DATA_TYPE &data, const F32 priority);
+ typedef F32 (*get_pri_fn)(DATA_TYPE &data);
+
+
+ LLPriQueueMap(set_pri_fn set_pri, get_pri_fn get_pri) : mSetPriority(set_pri), mGetPriority(get_pri)
+ {
+ }
+
+ void push(const F32 priority, DATA_TYPE data)
+ {
+#ifdef _DEBUG
+ pqm_iter iter = mMap.find(LLPQMKey<DATA_TYPE>(priority, data));
+ if (iter != mMap.end())
+ {
+ LL_ERRS() << "Pushing already existing data onto queue!" << LL_ENDL;
+ }
+#endif
+ mMap.insert(pqm_pair(LLPQMKey<DATA_TYPE>(priority, data), data));
+ }
+
+ bool pop(DATA_TYPE *datap)
+ {
+ pqm_iter iter;
+ iter = mMap.begin();
+ if (iter == mMap.end())
+ {
+ return false;
+ }
+ *datap = (*(iter)).second;
+ mMap.erase(iter);
+
+ return true;
+ }
+
+ void reprioritize(const F32 new_priority, DATA_TYPE data)
+ {
+ pqm_iter iter;
+ F32 cur_priority = mGetPriority(data);
+ LLPQMKey<DATA_TYPE> cur_key(cur_priority, data);
+ iter = mMap.find(cur_key);
+ if (iter == mMap.end())
+ {
+ LL_WARNS() << "Data not on priority queue!" << LL_ENDL;
+ // OK, try iterating through all of the data and seeing if we just screwed up the priority
+ // somehow.
+ for (pqm_pair pair : mMap)
+ {
+ if (pair.second == data)
+ {
+ LL_ERRS() << "Data on priority queue but priority not matched!" << LL_ENDL;
+ }
+ }
+ return;
+ }
+
+ mMap.erase(iter);
+ mSetPriority(data, new_priority);
+ push(new_priority, data);
+ }
+
+ S32 getLength() const
+ {
+ return (S32)mMap.size();
+ }
+
+ // Hack: public for use by the transfer manager, ugh.
+ std::map<LLPQMKey<DATA_TYPE>, DATA_TYPE> mMap;
+protected:
+ void (*mSetPriority)(DATA_TYPE &data, const F32 priority);
+ F32 (*mGetPriority)(DATA_TYPE &data);
+};
+
+#endif // LL_LLPRIQUEUEMAP_H
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