From f206cd649d5776b1176805c68f978b91435de3e9 Mon Sep 17 00:00:00 2001 From: ponchio Date: Fri, 11 Mar 2011 16:14:54 +0000 Subject: [PATCH] moved from sandbox --- wrap/gcache/cache.h | 240 +++ wrap/gcache/controller.h | 131 ++ wrap/gcache/dheap.h | 274 +++ wrap/gcache/docs/Doxyfile | 1600 +++++++++++++++ wrap/gcache/docs/css/prettify.css | 16 + wrap/gcache/docs/img/architecture.png | Bin 0 -> 32317 bytes wrap/gcache/docs/img/architecture.svg | 2626 +++++++++++++++++++++++++ wrap/gcache/docs/img/overflow.png | Bin 0 -> 8526 bytes wrap/gcache/docs/img/overflow.svg | 458 +++++ wrap/gcache/docs/img/shadow.png | Bin 0 -> 248 bytes wrap/gcache/docs/js/prettify.css | 16 + wrap/gcache/docs/js/prettify.js | 46 + wrap/gcache/docs/readme.html | 175 ++ wrap/gcache/door.h | 101 + wrap/gcache/provider.h | 87 + wrap/gcache/token.h | 91 + 16 files changed, 5861 insertions(+) create mode 100644 wrap/gcache/cache.h create mode 100644 wrap/gcache/controller.h create mode 100644 wrap/gcache/dheap.h create mode 100644 wrap/gcache/docs/Doxyfile create mode 100644 wrap/gcache/docs/css/prettify.css create mode 100644 wrap/gcache/docs/img/architecture.png create mode 100644 wrap/gcache/docs/img/architecture.svg create mode 100644 wrap/gcache/docs/img/overflow.png create mode 100644 wrap/gcache/docs/img/overflow.svg create mode 100644 wrap/gcache/docs/img/shadow.png create mode 100644 wrap/gcache/docs/js/prettify.css create mode 100644 wrap/gcache/docs/js/prettify.js create mode 100644 wrap/gcache/docs/readme.html create mode 100644 wrap/gcache/door.h create mode 100644 wrap/gcache/provider.h create mode 100644 wrap/gcache/token.h diff --git a/wrap/gcache/cache.h b/wrap/gcache/cache.h new file mode 100644 index 00000000..6cecdee0 --- /dev/null +++ b/wrap/gcache/cache.h @@ -0,0 +1,240 @@ +#ifndef GCACHE_CACHE_H +#define GCACHE_CACHE_H + +#include +#include + +#include +#include "provider.h" + +/* this cache system enforce the rule that the items in a cache are always in all the cache below */ +/* two mechanism to remove tokens from the cache: + 1) set token count to something low + 2) set maximum number of tokens in the provider +*/ + +/** Cache virtual base class. You are required to implement the pure virtual functions get, drop and size. +*/ + +template +class Cache: public Provider { + + public: + bool final; //true if this is the last cache (the one we use the data from) + bool quit; //graceful exit + bool waiting; + ///data is fetched from here + Provider *input; + + protected: + ///max space available + quint64 s_max; + ///current space used + quint64 s_curr; + + public: + Cache(quint64 _capacity = INT_MAX): + final(false), quit(false), waiting(false), input(NULL), s_max(_capacity), s_curr(0) {} + virtual ~Cache() {} + + void setInputCache(Provider *p) { input = p; } + quint64 capacity() { return s_max; } + quint64 size() { return s_curr; } + void setCapacity(quint64 c) { s_max = c; } + ///return true if the cache is waiting for priority to change + bool isWaiting() { return waiting; } + + ///empty the cache. Make sure no resource is locked before calling this. + void flush() { + std::vector tokens; + { + QMutexLocker locker(&(this->heap_lock)); + for(int i = 0; i < this->heap.size(); i++) { + Token *token = &(this->heap[i]); + tokens.push_back(token); + s_curr -= drop(token); + assert(!(token->count >= Token::LOCKED)); + if(final) + token->count.testAndSetOrdered(Token::READY, Token::CACHE); + } + this->heap.clear(); + } + + assert(s_curr == 0); + + { + QMutexLocker locker(&(input->heap_lock)); + for(unsigned int i = 0; i < tokens.size(); i++) { + input->heap.push(tokens[i]); + } + } + } + + ///ensure there no locked item + template void flush(FUNCTOR functor) { + std::vector tokens; + { + int count = 0; + QMutexLocker locker(&(this->heap_lock)); + for(int k = 0; k < this->heap.size(); k++) { + Token *token = &this->heap[k]; + if(functor(token)) { //drop it + tokens.push_back(token); + s_curr -= drop(token); + assert(!token->count >= Token::LOCKED); + if(final) + token->count.testAndSetOrdered(Token::READY, Token::CACHE); + } else + this->heap.at(count++) = token; + } + this->heap.resize(count); + this->heap_dirty = true; + } + { + QMutexLocker locker(&(input->heap_lock)); + for(unsigned int i = 0; i < tokens.size(); i++) { + input->heap.push(tokens[i]); + } + } + } + + protected: + ///return the space used in the cache by the loaded resource + virtual int size(Token *token) = 0; + ///returns amount of space used in cache -1 for failed transfer + virtual int get(Token *token) = 0; + ///return amount removed + virtual int drop(Token *token) = 0; + + ///called in as first thing in run() + virtual void begin() {} + ///called in as last thing in run() + virtual void end() {} + + ///[should be protected] + void run() { + assert(input); + /* basic operation of the cache: + 1) transfer first element of input_cache if + cache has room OR first element in input as higher priority of last element + 2) make room until eliminating an element would leave space. */ + begin(); + while(!this->quit) { + waiting = true; + input->check_queue.enter(true); //wait for cache below to load someghing or priorities to change + waiting = false; + + if(this->quit) break; + + if(unload() || load()) + input->check_queue.open(); //we signal ourselves to check again + } + flush(); + this->quit = false; //in case someone wants to restart; + end(); + } + + + + ///should be protected + bool unload() { + Token *remove = NULL; + //make room int the cache checking that: + //1 we need to make room (capacity < current) + if(size() > capacity()) { + + QMutexLocker locker(&(this->heap_lock)); + + //2 we have some element not in the upper caches (heap.size() > 0 + if(this->heap.size()) { + Token &last = this->heap.min(); + int itemsize = size(&last); + + //3 after removing the item, we are still full (avoids bouncing items) + if(size() - itemsize > capacity()) { + + //4 item to remove is not locked. (only in last cache. you can't lock object otherwise) + if(!final) { //not final we can drop when we want + remove = this->heap.popMin(); + } else { + last.count.testAndSetOrdered(Token::READY, Token::CACHE); + if(last.count <= Token::CACHE) { //was not locked and now can't be locked, remove it. + remove = this->heap.popMin(); + } else { //last item is locked need to reorder stack + remove = this->heap.popMin(); + this->heap.push(remove); + return true; + } + } + } + } + } + + if(remove) { + int size = drop(remove); + assert(size >= 0); + s_curr -= size; + + { + QMutexLocker input_locker(&(input->heap_lock)); + input->heap.push(remove); + } + return true; + } + return false; + } + ///should be protected + bool load() { + Token *insert = NULL; + Token *last = NULL; //we want to lock only one heap at once to avoid deadlocks. + + /* check wether we have room (curr < capacity) or heap is empty. + empty heap is bad: we cannot drop anything to make room, and cache above has nothing to get. + this should not happen if we set correct cache sizes, but if it happens.... */ + { + QMutexLocker locker(&(this->heap_lock)); + this->rebuild(); + if(size() > capacity() && this->heap.size() > 0) { + last = &(this->heap.min()); //no room, set last so we might check for a swap. + } + } + + { + QMutexLocker input_locker(&(input->heap_lock)); + input->rebuild(); //if dirty rebuild + if(input->heap.size()) { //we need something in input to tranfer. + Token &first = input->heap.max(); + if(first.count > Token::REMOVE && + (!last || last->priority < first.priority)) { //if !last we already decided we want a transfer., otherwise check for a swap + insert = input->heap.popMax(); //remove item from heap, while we transfer it. + } + } + } + + if(insert) { //we want to fetch something + + int size = get(insert); + + if(size >= 0) { //success + s_curr += size; + { + QMutexLocker locker(&(this->heap_lock)); + if(final) + insert->count.ref(); //now lock is 0 and can be locked + + this->heap.push(insert); + } + this->check_queue.open(); //we should signal the parent cache that we have a new item + return true; + + } else { //failed transfer put it back, we will keep trying to transfer it... + QMutexLocker input_locker(&(input->heap_lock)); + input->heap.push(insert); + return false; + } + } + return false; + } +}; + +#endif // GCACHE_H diff --git a/wrap/gcache/controller.h b/wrap/gcache/controller.h new file mode 100644 index 00000000..812f37a5 --- /dev/null +++ b/wrap/gcache/controller.h @@ -0,0 +1,131 @@ +#ifndef GCACHE_CONTROLLER_H +#define GCACHE_CONTROLLER_H + +#include "cache.h" + +/** Allows to insert tokens, update priorities and generally control the cache. +*/ + +template +class Controller { + public: + ///should be private + std::vector tokens; //tokens waiting to be added + bool quit; //gracefully terminate. + bool paused; + bool stopped; + + public: + ///should be protected + Provider provider; + ///should be protected + std::vector *> caches; + + Controller(): quit(false), paused(false), stopped(true) {} + ~Controller() { finish(); } + + ///called before the cache is started to add a cache in the chain + /** The order in which the caches are added is from the lowest to the highest. */ + void addCache(Cache *cache) { + if(caches.size() == 0) + cache->setInputCache(&provider); + else + cache->setInputCache(caches.back()); + assert(cache->input); + caches.push_back(cache); + } + ///insert a token in the last provider (actual insertion is done on updatePriorities) + void addToken(Token *token) { + token->count = Token::CACHE; + tokens.push_back(token); + } + + ///WARNING: migh stall for the time needed to drop tokens from cache. + //FUNCTOR has bool operator(Token *) and return true to remove + template void removeTokens(FUNCTOR functor) { + stop(); + + std::vector tmp; + for(quint32 i = 0; i < caches.size(); i++) + caches[i]->flush(functor); + + provider.flush(functor); + + start(); + } + + ///if more tokens than m present in the provider, lowest priority ones will be removed + void setMaxTokens(int m) { + QMutexLocker l(&provider.heap_lock); + provider.max_tokens = m; + } + + ///ensure that added tokens are processed and existing ones have their priority updated. + void updatePriorities() { + + if(tokens.size()) { + QMutexLocker l(&provider.heap_lock); + for(unsigned int i = 0; i < tokens.size(); i++) + provider.heap.push(tokens[i]); + tokens.clear(); + } + + provider.pushPriorities(); + for(unsigned int i = 0; i < caches.size(); i++) + caches[i]->pushPriorities(); + } + + ///start the various cache threads. + void start() { + if(!stopped) return; + assert(!paused); + assert(caches.size() > 1); + caches.back()->final = true; + for(unsigned int i = 0; i < caches.size(); i++) //cache 0 is a provider, and his thread is not running. + caches[i]->start(); + stopped = false; + } + ///stops the ache threads + void stop() { + if(stopped) return; + if(paused) resume(); + //stop threads + for(int i = caches.size()-1; i >= 0; i--) { + caches[i]->quit = true; //hmmmmmmmmmmmmmm not very clean. + if(i == 0) + provider.check_queue.open(); + else + caches[i-1]->check_queue.open(); //cache i listens on queue i-1 + caches[i]->wait(); + } + stopped = true; + } + + void finish() { + stop(); + } + + void pause() { + if(paused) return; + provider.heap_lock.lock(); + for(unsigned int i = 0; i < caches.size(); i++) + caches[i]->heap_lock.lock(); + paused = true; + } + + void resume() { + if(!paused) return; + provider.heap_lock.unlock(); + for(unsigned int i = 0; i < caches.size(); i++) + caches[i]->heap_lock.unlock(); + paused = false; + } + ///empty all caches + void flush() { + for(unsigned int i = caches.size()-1; i >= 0; i--) + caches[i]->flush(); + } +}; + + +#endif // CONTROLLER_H diff --git a/wrap/gcache/dheap.h b/wrap/gcache/dheap.h new file mode 100644 index 00000000..faf6d060 --- /dev/null +++ b/wrap/gcache/dheap.h @@ -0,0 +1,274 @@ +/**************************************************************************** +* GCache * +* Author: Federico Ponchio * +* * +* Copyright(C) 2011 * +* Visual Computing Lab * +* ISTI - Italian National Research Council * +* * +* All rights reserved. * +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) * +* for more details. * +* * +****************************************************************************/ + +#ifndef DD_HEAP_H +#define DD_HEAP_H + +/** + Double ended heap inspired by + Min-Max Heaps and Generalized Priority Queues + M. D. ATKINSON,J.-R. SACK, N. SANTORO,and T. STROTHOTTE + + This structure allows for quick extraction of biggest and smaller item out of a set + with linear reconstruction of the ordering. + + DHeap exposes the public interface of vector. (push_back(), resize() etc.). + + Compared to a stl heap, rebuild is 15% longer, extraction is 2x longer, + but you get both min and max extraction in log(n) time. +*/ + +#include +#include + + +template +class DHeap: public std::vector { +public: + + void push(const T& elt) { + push_back(elt); + bubbleUp(this->size()-1); + } + + T &min() { return this->front(); } //root is smallest element + + T popMin() { + T elt = this->front(); + //move the last element to the root and + this->front() = this->back(); + this->pop_back(); + //enforce minmax heap property + trickleDownMin(0); + return elt; + } + + //max is second element + T &max() { + if(this->size() == 1) return at(0); + return at(1); + } + + T popMax() { + int p = 1; + if(this->size() == 1) p = 0; + T elt = at(p); + //max is replaced with last item. + at(p) = this->back(); + this->pop_back(); + trickleDownMax(p); //enforce minmax heap property + return elt; + } + + //just reinsert all elements + void rebuild() { + for(unsigned int i = 0; i < this->size(); i++) + bubbleUp(i); + } + +protected: + T &at(int n) { return std::vector::at(n); } + + int isMax(int e) const { return e & 1; } + int parentMin(int i) const { return (((i+2)>>2)<<1) - 2; } + int parentMax(int i) const { return (((i+2)>>2)<<1) - 1; } + int leftChildMin(int i) const { return (((i+2)>>1)<<2) -2; } + int leftChildMax(int i) const { return (((i+2)>>1)<<2) -1; } + + void swap(int a, int b) { T tmp = at(a); at(a) = at(b); at(b) = tmp; } + + //returns smallest elemennt of children intervals (or self if no children) + int smallestChild(int i) { + int l = leftChildMin(i); + if(l >= this->size()) return i; //no children, return self + + int r = l+2; //right child + if(r < this->size() && at(r) < at(l)) + return r; + return l; + } + //return biggest children or self if no children + int greatestChild(int i) { + int l = leftChildMax(i); + if(l >= this->size()) return i; //no children, return self + + int r = l+2; //right child + if(r < this->size() && at(r) > at(l)) + return r; + return l; + } + + //all stuff involving swaps could be optimized perofming circular swaps + // but you mantain the code after :) + void trickleDownMin(int i) { + while(1) { + + //find smallest child + unsigned int m = leftChildMin(i); + if(m >= this->size()) break; + unsigned int r = m+2; + if(r < this->size() && at(r) < at(m)) + m = r; + + if(at(m) < at(i)) { //if child is smaller swap + swap(i, m); + i = m; //check swapped children + } else //no swap? finish + break; + + m = i+1; //enforce order in interval + if(m >= this->size()) break; + if(at(m) < at(i)) + swap(i, m); + } + } + + void trickleDownMax(int i) { + while(1) { + + //find greatest child + unsigned int m = leftChildMax(i); + if(m >= this->size()) break; + unsigned int r = m+2; + if(r < this->size() && at(r) > at(m)) + m = r; + + if(at(m) > at(i)) { + swap(i, m); + i = m; + } else + break; + + m = i-1; //enforce order in interval + if(m >= this->size()) break; + if(at(m) > at(i)) { + swap(i, m); + } + } + } + + void bubbleUpMin(int i) { + while(1) { + int m = parentMin(i); + if(m < 0) break; + if(at(m) > at(i)) { + swap(i, m); + i = m; + } else + break; + } + } + + void bubbleUpMax(int i) { + while(1) { + int m = parentMax(i); + if(m < 0) break; + if(at(m) < at(i)) { + swap(i, m); + i = m; + } else + break; + } + } + + void bubbleUp(int i) { + if(isMax(i)) { + int m = i-1; + if(at(m) > at(i)) { + swap(i, m); + bubbleUpMin(m); + } else + bubbleUpMax(i); + } else { + int m = parentMax(i); + if(m < 0) return; + if(at(m) < at(i)) { + swap(i, m); + bubbleUpMax(m); + } else + bubbleUpMin(i);//just reinsert all elements, (no push back necessary, of course + } + } + /* DEBUG */ + public: + ///check the double heap conditions are met, mainly for debugging purpouses + bool isHeap() { //checks everything is in order + int s = this->size(); + for(int i = 0; i < s; i += 2) { + if(i+1 < s && at(i) > at(i+1)) return false; + int l = leftChildMin(i); + if(l < s && at(i) > at(l)) return false; + int r = l + 2; + if(r < s && at(i) > at(r)) return false; + } + for(int i = 1; i < s; i += 2) { + int l = leftChildMax(i); + if(l < s && at(i) < at(l)) return false; + int r = l + 2; + if(r < s && at(i) < at(r)) return false; + } + return true; + } +}; + +/** Same functionality as IHeap, but storing pointers instead of the objects */ + +template +class PtrDHeap { + private: + class Item { + public: + T *value; + Item(T *val): value(val) {} + bool operator<(const Item &i) const { return *value < *i.value; } + bool operator>(const Item &i) const { return *value > *i.value; } + }; + DHeap heap; + + public: + T *push(T *t) { + Item i(t); + heap.push(i); + return i.value; + } + void push_back(T *t) { + heap.push_back(Item(t)); + } + int size() { return heap.size(); } + void resize(int n) { assert(n < (int)heap.size()); return heap.resize(n, Item(NULL)); } + void clear() { heap.clear(); } + T &min() { Item &i = heap.min(); return *i.value; } + T *popMin() { Item i = heap.popMin(); return i.value; } + + T &max() { Item &i = heap.max(); return *i.value; } + T *popMax() { Item i = heap.popMax(); return i.value; } + + void rebuild() { heap.rebuild(); } + T &operator[](int i) { + return *(heap[i].value); + } + Item &at(int i) { return heap[i]; } + bool isHeap() { return heap.isHeap(); } +}; + +#endif diff --git a/wrap/gcache/docs/Doxyfile b/wrap/gcache/docs/Doxyfile new file mode 100644 index 00000000..d45c3226 --- /dev/null +++ b/wrap/gcache/docs/Doxyfile @@ -0,0 +1,1600 @@ +# Doxyfile 1.6.3 + +# This file describes the settings to be used by the documentation system +# doxygen (www.doxygen.org) for a project +# +# All text after a hash (#) is considered a comment and will be ignored +# The format is: +# TAG = value [value, ...] +# For lists items can also be appended using: +# TAG += value [value, ...] +# Values that contain spaces should be placed between quotes (" ") + +#--------------------------------------------------------------------------- +# Project related configuration options +#--------------------------------------------------------------------------- + +# This tag specifies the encoding used for all characters in the config file +# that follow. The default is UTF-8 which is also the encoding used for all +# text before the first occurrence of this tag. Doxygen uses libiconv (or the +# iconv built into libc) for the transcoding. See +# http://www.gnu.org/software/libiconv for the list of possible encodings. + +DOXYFILE_ENCODING = UTF-8 + +# The PROJECT_NAME tag is a single word (or a sequence of words surrounded +# by quotes) that should identify the project. + +PROJECT_NAME = GCache + +# The PROJECT_NUMBER tag can be used to enter a project or revision number. +# This could be handy for archiving the generated documentation or +# if some version control system is used. + +PROJECT_NUMBER = 1.0 + +# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) +# base path where the generated documentation will be put. +# If a relative path is entered, it will be relative to the location +# where doxygen was started. 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Doxygen will use this +# information to generate all constant output in the proper language. +# The default language is English, other supported languages are: +# Afrikaans, Arabic, Brazilian, Catalan, Chinese, Chinese-Traditional, +# Croatian, Czech, Danish, Dutch, Esperanto, Farsi, Finnish, French, German, +# Greek, Hungarian, Italian, Japanese, Japanese-en (Japanese with English +# messages), Korean, Korean-en, Lithuanian, Norwegian, Macedonian, Persian, +# Polish, Portuguese, Romanian, Russian, Serbian, Serbian-Cyrilic, Slovak, +# Slovene, Spanish, Swedish, Ukrainian, and Vietnamese. + +OUTPUT_LANGUAGE = English + +# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will +# include brief member descriptions after the members that are listed in +# the file and class documentation (similar to JavaDoc). +# Set to NO to disable this. + +BRIEF_MEMBER_DESC = YES + +# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend +# the brief description of a member or function before the detailed description. +# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the +# brief descriptions will be completely suppressed. + +REPEAT_BRIEF = YES + +# This tag implements a quasi-intelligent brief description abbreviator +# that is used to form the text in various listings. 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This can be useful is your file systems +# doesn't support long names like on DOS, Mac, or CD-ROM. + +SHORT_NAMES = NO + +# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen +# will interpret the first line (until the first dot) of a JavaDoc-style +# comment as the brief description. If set to NO, the JavaDoc +# comments will behave just like regular Qt-style comments +# (thus requiring an explicit @brief command for a brief description.) + +JAVADOC_AUTOBRIEF = NO + +# If the QT_AUTOBRIEF tag is set to YES then Doxygen will +# interpret the first line (until the first dot) of a Qt-style +# comment as the brief description. If set to NO, the comments +# will behave just like regular Qt-style comments (thus requiring +# an explicit \brief command for a brief description.) + +QT_AUTOBRIEF = NO + +# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen +# treat a multi-line C++ special comment block (i.e. a block of //! or /// +# comments) as a brief description. This used to be the default behaviour. +# The new default is to treat a multi-line C++ comment block as a detailed +# description. Set this tag to YES if you prefer the old behaviour instead. + +MULTILINE_CPP_IS_BRIEF = NO + +# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented +# member inherits the documentation from any documented member that it +# re-implements. + +INHERIT_DOCS = YES + +# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce +# a new page for each member. If set to NO, the documentation of a member will +# be part of the file/class/namespace that contains it. + +SEPARATE_MEMBER_PAGES = NO + +# The TAB_SIZE tag can be used to set the number of spaces in a tab. +# Doxygen uses this value to replace tabs by spaces in code fragments. + +TAB_SIZE = 8 + +# This tag can be used to specify a number of aliases that acts +# as commands in the documentation. An alias has the form "name=value". +# For example adding "sideeffect=\par Side Effects:\n" will allow you to +# put the command \sideeffect (or @sideeffect) in the documentation, which +# will result in a user-defined paragraph with heading "Side Effects:". +# You can put \n's in the value part of an alias to insert newlines. + +ALIASES = + +# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C +# sources only. Doxygen will then generate output that is more tailored for C. +# For instance, some of the names that are used will be different. The list +# of all members will be omitted, etc. + +OPTIMIZE_OUTPUT_FOR_C = NO + +# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java +# sources only. Doxygen will then generate output that is more tailored for +# Java. For instance, namespaces will be presented as packages, qualified +# scopes will look different, etc. + +OPTIMIZE_OUTPUT_JAVA = NO + +# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran +# sources only. Doxygen will then generate output that is more tailored for +# Fortran. + +OPTIMIZE_FOR_FORTRAN = NO + +# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL +# sources. Doxygen will then generate output that is tailored for +# VHDL. + +OPTIMIZE_OUTPUT_VHDL = NO + +# Doxygen selects the parser to use depending on the extension of the files it parses. +# With this tag you can assign which parser to use for a given extension. +# Doxygen has a built-in mapping, but you can override or extend it using this tag. +# The format is ext=language, where ext is a file extension, and language is one of +# the parsers supported by doxygen: IDL, Java, Javascript, C#, C, C++, D, PHP, +# Objective-C, Python, Fortran, VHDL, C, C++. For instance to make doxygen treat +# .inc files as Fortran files (default is PHP), and .f files as C (default is Fortran), +# use: inc=Fortran f=C. Note that for custom extensions you also need to set +# FILE_PATTERNS otherwise the files are not read by doxygen. + +EXTENSION_MAPPING = + +# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want +# to include (a tag file for) the STL sources as input, then you should +# set this tag to YES in order to let doxygen match functions declarations and +# definitions whose arguments contain STL classes (e.g. func(std::string); v.s. +# func(std::string) {}). This also make the inheritance and collaboration +# diagrams that involve STL classes more complete and accurate. + +BUILTIN_STL_SUPPORT = NO + +# If you use Microsoft's C++/CLI language, you should set this option to YES to +# enable parsing support. + +CPP_CLI_SUPPORT = NO + +# Set the SIP_SUPPORT tag to YES if your project consists of sip sources only. +# Doxygen will parse them like normal C++ but will assume all classes use public +# instead of private inheritance when no explicit protection keyword is present. + +SIP_SUPPORT = NO + +# For Microsoft's IDL there are propget and propput attributes to indicate getter +# and setter methods for a property. Setting this option to YES (the default) +# will make doxygen to replace the get and set methods by a property in the +# documentation. This will only work if the methods are indeed getting or +# setting a simple type. If this is not the case, or you want to show the +# methods anyway, you should set this option to NO. + +IDL_PROPERTY_SUPPORT = YES + +# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC +# tag is set to YES, then doxygen will reuse the documentation of the first +# member in the group (if any) for the other members of the group. By default +# all members of a group must be documented explicitly. + +DISTRIBUTE_GROUP_DOC = NO + +# Set the SUBGROUPING tag to YES (the default) to allow class member groups of +# the same type (for instance a group of public functions) to be put as a +# subgroup of that type (e.g. under the Public Functions section). Set it to +# NO to prevent subgrouping. Alternatively, this can be done per class using +# the \nosubgrouping command. + +SUBGROUPING = YES + +# When TYPEDEF_HIDES_STRUCT is enabled, a typedef of a struct, union, or enum +# is documented as struct, union, or enum with the name of the typedef. So +# typedef struct TypeS {} TypeT, will appear in the documentation as a struct +# with name TypeT. When disabled the typedef will appear as a member of a file, +# namespace, or class. And the struct will be named TypeS. This can typically +# be useful for C code in case the coding convention dictates that all compound +# types are typedef'ed and only the typedef is referenced, never the tag name. + +TYPEDEF_HIDES_STRUCT = NO + +# The SYMBOL_CACHE_SIZE determines the size of the internal cache use to +# determine which symbols to keep in memory and which to flush to disk. +# When the cache is full, less often used symbols will be written to disk. +# For small to medium size projects (<1000 input files) the default value is +# probably good enough. For larger projects a too small cache size can cause +# doxygen to be busy swapping symbols to and from disk most of the time +# causing a significant performance penality. +# If the system has enough physical memory increasing the cache will improve the +# performance by keeping more symbols in memory. Note that the value works on +# a logarithmic scale so increasing the size by one will rougly double the +# memory usage. The cache size is given by this formula: +# 2^(16+SYMBOL_CACHE_SIZE). The valid range is 0..9, the default is 0, +# corresponding to a cache size of 2^16 = 65536 symbols + +SYMBOL_CACHE_SIZE = 0 + +#--------------------------------------------------------------------------- +# Build related configuration options +#--------------------------------------------------------------------------- + +# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in +# documentation are documented, even if no documentation was available. +# Private class members and static file members will be hidden unless +# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES + +EXTRACT_ALL = NO + +# If the EXTRACT_PRIVATE tag is set to YES all private members of a class +# will be included in the documentation. + +EXTRACT_PRIVATE = NO + +# If the EXTRACT_STATIC tag is set to YES all static members of a file +# will be included in the documentation. + +EXTRACT_STATIC = NO + +# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) +# defined locally in source files will be included in the documentation. +# If set to NO only classes defined in header files are included. + +EXTRACT_LOCAL_CLASSES = YES + +# This flag is only useful for Objective-C code. When set to YES local +# methods, which are defined in the implementation section but not in +# the interface are included in the documentation. +# If set to NO (the default) only methods in the interface are included. + +EXTRACT_LOCAL_METHODS = NO + +# If this flag is set to YES, the members of anonymous namespaces will be +# extracted and appear in the documentation as a namespace called +# 'anonymous_namespace{file}', where file will be replaced with the base +# name of the file that contains the anonymous namespace. By default +# anonymous namespace are hidden. + +EXTRACT_ANON_NSPACES = NO + +# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all +# undocumented members of documented classes, files or namespaces. +# If set to NO (the default) these members will be included in the +# various overviews, but no documentation section is generated. +# This option has no effect if EXTRACT_ALL is enabled. + +HIDE_UNDOC_MEMBERS = NO + +# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all +# undocumented classes that are normally visible in the class hierarchy. +# If set to NO (the default) these classes will be included in the various +# overviews. This option has no effect if EXTRACT_ALL is enabled. + +HIDE_UNDOC_CLASSES = YES + +# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all +# friend (class|struct|union) declarations. +# If set to NO (the default) these declarations will be included in the +# documentation. + +HIDE_FRIEND_COMPOUNDS = NO + +# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any +# documentation blocks found inside the body of a function. +# If set to NO (the default) these blocks will be appended to the +# function's detailed documentation block. + +HIDE_IN_BODY_DOCS = NO + +# The INTERNAL_DOCS tag determines if documentation +# that is typed after a \internal command is included. If the tag is set +# to NO (the default) then the documentation will be excluded. +# Set it to YES to include the internal documentation. + +INTERNAL_DOCS = NO + +# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate +# file names in lower-case letters. If set to YES upper-case letters are also +# allowed. This is useful if you have classes or files whose names only differ +# in case and if your file system supports case sensitive file names. Windows +# and Mac users are advised to set this option to NO. + +CASE_SENSE_NAMES = NO + +# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen +# will show members with their full class and namespace scopes in the +# documentation. If set to YES the scope will be hidden. + +HIDE_SCOPE_NAMES = NO + +# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen +# will put a list of the files that are included by a file in the documentation +# of that file. + +SHOW_INCLUDE_FILES = YES + +# If the FORCE_LOCAL_INCLUDES tag is set to YES then Doxygen +# will list include files with double quotes in the documentation +# rather than with sharp brackets. + +FORCE_LOCAL_INCLUDES = NO + +# If the INLINE_INFO tag is set to YES (the default) then a tag [inline] +# is inserted in the documentation for inline members. + +INLINE_INFO = YES + +# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen +# will sort the (detailed) documentation of file and class members +# alphabetically by member name. If set to NO the members will appear in +# declaration order. + +SORT_MEMBER_DOCS = YES + +# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the +# brief documentation of file, namespace and class members alphabetically +# by member name. If set to NO (the default) the members will appear in +# declaration order. + +SORT_BRIEF_DOCS = NO + +# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen +# will sort the (brief and detailed) documentation of class members so that +# constructors and destructors are listed first. If set to NO (the default) +# the constructors will appear in the respective orders defined by +# SORT_MEMBER_DOCS and SORT_BRIEF_DOCS. +# This tag will be ignored for brief docs if SORT_BRIEF_DOCS is set to NO +# and ignored for detailed docs if SORT_MEMBER_DOCS is set to NO. + +SORT_MEMBERS_CTORS_1ST = NO + +# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the +# hierarchy of group names into alphabetical order. If set to NO (the default) +# the group names will appear in their defined order. + +SORT_GROUP_NAMES = NO + +# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be +# sorted by fully-qualified names, including namespaces. If set to +# NO (the default), the class list will be sorted only by class name, +# not including the namespace part. +# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES. +# Note: This option applies only to the class list, not to the +# alphabetical list. + +SORT_BY_SCOPE_NAME = NO + +# The GENERATE_TODOLIST tag can be used to enable (YES) or +# disable (NO) the todo list. This list is created by putting \todo +# commands in the documentation. + +GENERATE_TODOLIST = YES + +# The GENERATE_TESTLIST tag can be used to enable (YES) or +# disable (NO) the test list. This list is created by putting \test +# commands in the documentation. + +GENERATE_TESTLIST = YES + +# The GENERATE_BUGLIST tag can be used to enable (YES) or +# disable (NO) the bug list. This list is created by putting \bug +# commands in the documentation. + +GENERATE_BUGLIST = YES + +# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or +# disable (NO) the deprecated list. This list is created by putting +# \deprecated commands in the documentation. + +GENERATE_DEPRECATEDLIST= YES + +# The ENABLED_SECTIONS tag can be used to enable conditional +# documentation sections, marked by \if sectionname ... \endif. + +ENABLED_SECTIONS = + +# The MAX_INITIALIZER_LINES tag determines the maximum number of lines +# the initial value of a variable or define consists of for it to appear in +# the documentation. If the initializer consists of more lines than specified +# here it will be hidden. Use a value of 0 to hide initializers completely. +# The appearance of the initializer of individual variables and defines in the +# documentation can be controlled using \showinitializer or \hideinitializer +# command in the documentation regardless of this setting. + +MAX_INITIALIZER_LINES = 30 + +# Set the SHOW_USED_FILES tag to NO to disable the list of files generated +# at the bottom of the documentation of classes and structs. If set to YES the +# list will mention the files that were used to generate the documentation. + +SHOW_USED_FILES = YES + +# If the sources in your project are distributed over multiple directories +# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy +# in the documentation. The default is NO. + +SHOW_DIRECTORIES = NO + +# Set the SHOW_FILES tag to NO to disable the generation of the Files page. +# This will remove the Files entry from the Quick Index and from the +# Folder Tree View (if specified). The default is YES. + +SHOW_FILES = YES + +# Set the SHOW_NAMESPACES tag to NO to disable the generation of the +# Namespaces page. This will remove the Namespaces entry from the Quick Index +# and from the Folder Tree View (if specified). The default is YES. + +SHOW_NAMESPACES = YES + +# The FILE_VERSION_FILTER tag can be used to specify a program or script that +# doxygen should invoke to get the current version for each file (typically from +# the version control system). Doxygen will invoke the program by executing (via +# popen()) the command , where is the value of +# the FILE_VERSION_FILTER tag, and is the name of an input file +# provided by doxygen. Whatever the program writes to standard output +# is used as the file version. See the manual for examples. + +FILE_VERSION_FILTER = + +# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed by +# doxygen. The layout file controls the global structure of the generated output files +# in an output format independent way. The create the layout file that represents +# doxygen's defaults, run doxygen with the -l option. You can optionally specify a +# file name after the option, if omitted DoxygenLayout.xml will be used as the name +# of the layout file. + +LAYOUT_FILE = + +#--------------------------------------------------------------------------- +# configuration options related to warning and progress messages +#--------------------------------------------------------------------------- + +# The QUIET tag can be used to turn on/off the messages that are generated +# by doxygen. Possible values are YES and NO. If left blank NO is used. + +QUIET = NO + +# The WARNINGS tag can be used to turn on/off the warning messages that are +# generated by doxygen. Possible values are YES and NO. If left blank +# NO is used. + +WARNINGS = YES + +# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings +# for undocumented members. If EXTRACT_ALL is set to YES then this flag will +# automatically be disabled. + +WARN_IF_UNDOCUMENTED = YES + +# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for +# potential errors in the documentation, such as not documenting some +# parameters in a documented function, or documenting parameters that +# don't exist or using markup commands wrongly. + +WARN_IF_DOC_ERROR = YES + +# This WARN_NO_PARAMDOC option can be abled to get warnings for +# functions that are documented, but have no documentation for their parameters +# or return value. If set to NO (the default) doxygen will only warn about +# wrong or incomplete parameter documentation, but not about the absence of +# documentation. + +WARN_NO_PARAMDOC = NO + +# The WARN_FORMAT tag determines the format of the warning messages that +# doxygen can produce. The string should contain the $file, $line, and $text +# tags, which will be replaced by the file and line number from which the +# warning originated and the warning text. Optionally the format may contain +# $version, which will be replaced by the version of the file (if it could +# be obtained via FILE_VERSION_FILTER) + +WARN_FORMAT = "$file:$line: $text" + +# The WARN_LOGFILE tag can be used to specify a file to which warning +# and error messages should be written. If left blank the output is written +# to stderr. + +WARN_LOGFILE = + +#--------------------------------------------------------------------------- +# configuration options related to the input files +#--------------------------------------------------------------------------- + +# The INPUT tag can be used to specify the files and/or directories that contain +# documented source files. You may enter file names like "myfile.cpp" or +# directories like "/usr/src/myproject". Separate the files or directories +# with spaces. + +INPUT = /home/ponchio/devel/code/GCache + +# This tag can be used to specify the character encoding of the source files +# that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is +# also the default input encoding. Doxygen uses libiconv (or the iconv built +# into libc) for the transcoding. See http://www.gnu.org/software/libiconv for +# the list of possible encodings. + +INPUT_ENCODING = UTF-8 + +# If the value of the INPUT tag contains directories, you can use the +# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp +# and *.h) to filter out the source-files in the directories. If left +# blank the following patterns are tested: +# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx +# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py *.f90 + +FILE_PATTERNS = *.c \ + *.cc \ + *.cxx \ + *.cpp \ + *.c++ \ + *.d \ + *.java \ + *.ii \ + *.ixx \ + *.ipp \ + *.i++ \ + *.inl \ + *.h \ + *.hh \ + *.hxx \ + *.hpp \ + *.h++ \ + *.idl \ + *.odl \ + *.cs \ + *.php \ + *.php3 \ + *.inc \ + *.m \ + *.mm \ + *.dox \ + *.py \ + *.f90 \ + *.f \ + *.vhd \ + *.vhdl + +# The RECURSIVE tag can be used to turn specify whether or not subdirectories +# should be searched for input files as well. Possible values are YES and NO. +# If left blank NO is used. + +RECURSIVE = NO + +# The EXCLUDE tag can be used to specify files and/or directories that should +# excluded from the INPUT source files. This way you can easily exclude a +# subdirectory from a directory tree whose root is specified with the INPUT tag. + +EXCLUDE = + +# The EXCLUDE_SYMLINKS tag can be used select whether or not files or +# directories that are symbolic links (a Unix filesystem feature) are excluded +# from the input. + +EXCLUDE_SYMLINKS = NO + +# If the value of the INPUT tag contains directories, you can use the +# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude +# certain files from those directories. Note that the wildcards are matched +# against the file with absolute path, so to exclude all test directories +# for example use the pattern */test/* + +EXCLUDE_PATTERNS = + +# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names +# (namespaces, classes, functions, etc.) that should be excluded from the +# output. The symbol name can be a fully qualified name, a word, or if the +# wildcard * is used, a substring. Examples: ANamespace, AClass, +# AClass::ANamespace, ANamespace::*Test + +EXCLUDE_SYMBOLS = + +# The EXAMPLE_PATH tag can be used to specify one or more files or +# directories that contain example code fragments that are included (see +# the \include command). + +EXAMPLE_PATH = + +# If the value of the EXAMPLE_PATH tag contains directories, you can use the +# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp +# and *.h) to filter out the source-files in the directories. If left +# blank all files are included. + +EXAMPLE_PATTERNS = * + +# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be +# searched for input files to be used with the \include or \dontinclude +# commands irrespective of the value of the RECURSIVE tag. +# Possible values are YES and NO. If left blank NO is used. + +EXAMPLE_RECURSIVE = NO + +# The IMAGE_PATH tag can be used to specify one or more files or +# directories that contain image that are included in the documentation (see +# the \image command). + +IMAGE_PATH = + +# The INPUT_FILTER tag can be used to specify a program that doxygen should +# invoke to filter for each input file. Doxygen will invoke the filter program +# by executing (via popen()) the command , where +# is the value of the INPUT_FILTER tag, and is the name of an +# input file. Doxygen will then use the output that the filter program writes +# to standard output. If FILTER_PATTERNS is specified, this tag will be +# ignored. + +INPUT_FILTER = + +# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern +# basis. Doxygen will compare the file name with each pattern and apply the +# filter if there is a match. The filters are a list of the form: +# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further +# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER +# is applied to all files. + +FILTER_PATTERNS = + +# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using +# INPUT_FILTER) will be used to filter the input files when producing source +# files to browse (i.e. when SOURCE_BROWSER is set to YES). + +FILTER_SOURCE_FILES = NO + +#--------------------------------------------------------------------------- +# configuration options related to source browsing +#--------------------------------------------------------------------------- + +# If the SOURCE_BROWSER tag is set to YES then a list of source files will +# be generated. Documented entities will be cross-referenced with these sources. +# Note: To get rid of all source code in the generated output, make sure also +# VERBATIM_HEADERS is set to NO. + +SOURCE_BROWSER = NO + +# Setting the INLINE_SOURCES tag to YES will include the body +# of functions and classes directly in the documentation. + +INLINE_SOURCES = NO + +# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct +# doxygen to hide any special comment blocks from generated source code +# fragments. Normal C and C++ comments will always remain visible. + +STRIP_CODE_COMMENTS = YES + +# If the REFERENCED_BY_RELATION tag is set to YES +# then for each documented function all documented +# functions referencing it will be listed. + +REFERENCED_BY_RELATION = NO + +# If the REFERENCES_RELATION tag is set to YES +# then for each documented function all documented entities +# called/used by that function will be listed. + +REFERENCES_RELATION = NO + +# If the REFERENCES_LINK_SOURCE tag is set to YES (the default) +# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from +# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will +# link to the source code. Otherwise they will link to the documentation. + +REFERENCES_LINK_SOURCE = YES + +# If the USE_HTAGS tag is set to YES then the references to source code +# will point to the HTML generated by the htags(1) tool instead of doxygen +# built-in source browser. The htags tool is part of GNU's global source +# tagging system (see http://www.gnu.org/software/global/global.html). You +# will need version 4.8.6 or higher. + +USE_HTAGS = NO + +# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen +# will generate a verbatim copy of the header file for each class for +# which an include is specified. Set to NO to disable this. + +VERBATIM_HEADERS = YES + +#--------------------------------------------------------------------------- +# configuration options related to the alphabetical class index +#--------------------------------------------------------------------------- + +# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index +# of all compounds will be generated. Enable this if the project +# contains a lot of classes, structs, unions or interfaces. + +ALPHABETICAL_INDEX = NO + +# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then +# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns +# in which this list will be split (can be a number in the range [1..20]) + +COLS_IN_ALPHA_INDEX = 5 + +# In case all classes in a project start with a common prefix, all +# classes will be put under the same header in the alphabetical index. +# The IGNORE_PREFIX tag can be used to specify one or more prefixes that +# should be ignored while generating the index headers. + +IGNORE_PREFIX = + +#--------------------------------------------------------------------------- +# configuration options related to the HTML output +#--------------------------------------------------------------------------- + +# If the GENERATE_HTML tag is set to YES (the default) Doxygen will +# generate HTML output. + +GENERATE_HTML = YES + +# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. +# If a relative path is entered the value of OUTPUT_DIRECTORY will be +# put in front of it. If left blank `html' will be used as the default path. + +HTML_OUTPUT = html + +# The HTML_FILE_EXTENSION tag can be used to specify the file extension for +# each generated HTML page (for example: .htm,.php,.asp). If it is left blank +# doxygen will generate files with .html extension. + +HTML_FILE_EXTENSION = .html + +# The HTML_HEADER tag can be used to specify a personal HTML header for +# each generated HTML page. If it is left blank doxygen will generate a +# standard header. + +HTML_HEADER = + +# The HTML_FOOTER tag can be used to specify a personal HTML footer for +# each generated HTML page. If it is left blank doxygen will generate a +# standard footer. + +HTML_FOOTER = + +# The HTML_STYLESHEET tag can be used to specify a user-defined cascading +# style sheet that is used by each HTML page. It can be used to +# fine-tune the look of the HTML output. If the tag is left blank doxygen +# will generate a default style sheet. Note that doxygen will try to copy +# the style sheet file to the HTML output directory, so don't put your own +# stylesheet in the HTML output directory as well, or it will be erased! + +HTML_STYLESHEET = + +# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML +# page will contain the date and time when the page was generated. Setting +# this to NO can help when comparing the output of multiple runs. + +HTML_TIMESTAMP = YES + +# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, +# files or namespaces will be aligned in HTML using tables. If set to +# NO a bullet list will be used. + +HTML_ALIGN_MEMBERS = YES + +# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML +# documentation will contain sections that can be hidden and shown after the +# page has loaded. For this to work a browser that supports +# JavaScript and DHTML is required (for instance Mozilla 1.0+, Firefox +# Netscape 6.0+, Internet explorer 5.0+, Konqueror, or Safari). + +HTML_DYNAMIC_SECTIONS = NO + +# If the GENERATE_DOCSET tag is set to YES, additional index files +# will be generated that can be used as input for Apple's Xcode 3 +# integrated development environment, introduced with OSX 10.5 (Leopard). +# To create a documentation set, doxygen will generate a Makefile in the +# HTML output directory. Running make will produce the docset in that +# directory and running "make install" will install the docset in +# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find +# it at startup. +# See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html for more information. + +GENERATE_DOCSET = NO + +# When GENERATE_DOCSET tag is set to YES, this tag determines the name of the +# feed. A documentation feed provides an umbrella under which multiple +# documentation sets from a single provider (such as a company or product suite) +# can be grouped. + +DOCSET_FEEDNAME = "Doxygen generated docs" + +# When GENERATE_DOCSET tag is set to YES, this tag specifies a string that +# should uniquely identify the documentation set bundle. This should be a +# reverse domain-name style string, e.g. com.mycompany.MyDocSet. Doxygen +# will append .docset to the name. + +DOCSET_BUNDLE_ID = org.doxygen.Project + +# If the GENERATE_HTMLHELP tag is set to YES, additional index files +# will be generated that can be used as input for tools like the +# Microsoft HTML help workshop to generate a compiled HTML help file (.chm) +# of the generated HTML documentation. + +GENERATE_HTMLHELP = NO + +# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can +# be used to specify the file name of the resulting .chm file. You +# can add a path in front of the file if the result should not be +# written to the html output directory. + +CHM_FILE = + +# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can +# be used to specify the location (absolute path including file name) of +# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run +# the HTML help compiler on the generated index.hhp. + +HHC_LOCATION = + +# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag +# controls if a separate .chi index file is generated (YES) or that +# it should be included in the master .chm file (NO). + +GENERATE_CHI = NO + +# If the GENERATE_HTMLHELP tag is set to YES, the CHM_INDEX_ENCODING +# is used to encode HtmlHelp index (hhk), content (hhc) and project file +# content. + +CHM_INDEX_ENCODING = + +# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag +# controls whether a binary table of contents is generated (YES) or a +# normal table of contents (NO) in the .chm file. + +BINARY_TOC = NO + +# The TOC_EXPAND flag can be set to YES to add extra items for group members +# to the contents of the HTML help documentation and to the tree view. + +TOC_EXPAND = NO + +# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and QHP_VIRTUAL_FOLDER +# are set, an additional index file will be generated that can be used as input for +# Qt's qhelpgenerator to generate a Qt Compressed Help (.qch) of the generated +# HTML documentation. + +GENERATE_QHP = NO + +# If the QHG_LOCATION tag is specified, the QCH_FILE tag can +# be used to specify the file name of the resulting .qch file. +# The path specified is relative to the HTML output folder. + +QCH_FILE = + +# The QHP_NAMESPACE tag specifies the namespace to use when generating +# Qt Help Project output. For more information please see +# http://doc.trolltech.com/qthelpproject.html#namespace + +QHP_NAMESPACE = org.doxygen.Project + +# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating +# Qt Help Project output. For more information please see +# http://doc.trolltech.com/qthelpproject.html#virtual-folders + +QHP_VIRTUAL_FOLDER = doc + +# If QHP_CUST_FILTER_NAME is set, it specifies the name of a custom filter to add. +# For more information please see +# http://doc.trolltech.com/qthelpproject.html#custom-filters + +QHP_CUST_FILTER_NAME = + +# The QHP_CUST_FILT_ATTRS tag specifies the list of the attributes of the custom filter to add.For more information please see +# Qt Help Project / Custom Filters. + +QHP_CUST_FILTER_ATTRS = + +# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this project's +# filter section matches. +# Qt Help Project / Filter Attributes. + +QHP_SECT_FILTER_ATTRS = + +# If the GENERATE_QHP tag is set to YES, the QHG_LOCATION tag can +# be used to specify the location of Qt's qhelpgenerator. +# If non-empty doxygen will try to run qhelpgenerator on the generated +# .qhp file. + +QHG_LOCATION = + +# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files +# will be generated, which together with the HTML files, form an Eclipse help +# plugin. To install this plugin and make it available under the help contents +# menu in Eclipse, the contents of the directory containing the HTML and XML +# files needs to be copied into the plugins directory of eclipse. The name of +# the directory within the plugins directory should be the same as +# the ECLIPSE_DOC_ID value. After copying Eclipse needs to be restarted before +# the help appears. + +GENERATE_ECLIPSEHELP = NO + +# A unique identifier for the eclipse help plugin. When installing the plugin +# the directory name containing the HTML and XML files should also have +# this name. + +ECLIPSE_DOC_ID = org.doxygen.Project + +# The DISABLE_INDEX tag can be used to turn on/off the condensed index at +# top of each HTML page. The value NO (the default) enables the index and +# the value YES disables it. + +DISABLE_INDEX = NO + +# This tag can be used to set the number of enum values (range [1..20]) +# that doxygen will group on one line in the generated HTML documentation. + +ENUM_VALUES_PER_LINE = 4 + +# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index +# structure should be generated to display hierarchical information. +# If the tag value is set to YES, a side panel will be generated +# containing a tree-like index structure (just like the one that +# is generated for HTML Help). For this to work a browser that supports +# JavaScript, DHTML, CSS and frames is required (i.e. any modern browser). +# Windows users are probably better off using the HTML help feature. + +GENERATE_TREEVIEW = NO + +# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories, +# and Class Hierarchy pages using a tree view instead of an ordered list. + +USE_INLINE_TREES = NO + +# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be +# used to set the initial width (in pixels) of the frame in which the tree +# is shown. + +TREEVIEW_WIDTH = 250 + +# Use this tag to change the font size of Latex formulas included +# as images in the HTML documentation. The default is 10. Note that +# when you change the font size after a successful doxygen run you need +# to manually remove any form_*.png images from the HTML output directory +# to force them to be regenerated. + +FORMULA_FONTSIZE = 10 + +# When the SEARCHENGINE tag is enabled doxygen will generate a search box +# for the HTML output. The underlying search engine uses javascript +# and DHTML and should work on any modern browser. Note that when using +# HTML help (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets +# (GENERATE_DOCSET) there is already a search function so this one should +# typically be disabled. For large projects the javascript based search engine +# can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution. + +SEARCHENGINE = NO + +# When the SERVER_BASED_SEARCH tag is enabled the search engine will be +# implemented using a PHP enabled web server instead of at the web client +# using Javascript. Doxygen will generate the search PHP script and index +# file to put on the web server. The advantage of the server +# based approach is that it scales better to large projects and allows +# full text search. The disadvances is that it is more difficult to setup +# and does not have live searching capabilities. + +SERVER_BASED_SEARCH = NO + +#--------------------------------------------------------------------------- +# configuration options related to the LaTeX output +#--------------------------------------------------------------------------- + +# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will +# generate Latex output. + +GENERATE_LATEX = NO + +# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. +# If a relative path is entered the value of OUTPUT_DIRECTORY will be +# put in front of it. If left blank `latex' will be used as the default path. + +LATEX_OUTPUT = latex + +# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be +# invoked. If left blank `latex' will be used as the default command name. +# Note that when enabling USE_PDFLATEX this option is only used for +# generating bitmaps for formulas in the HTML output, but not in the +# Makefile that is written to the output directory. + +LATEX_CMD_NAME = latex + +# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to +# generate index for LaTeX. If left blank `makeindex' will be used as the +# default command name. + +MAKEINDEX_CMD_NAME = makeindex + +# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact +# LaTeX documents. This may be useful for small projects and may help to +# save some trees in general. + +COMPACT_LATEX = NO + +# The PAPER_TYPE tag can be used to set the paper type that is used +# by the printer. Possible values are: a4, a4wide, letter, legal and +# executive. If left blank a4wide will be used. + +PAPER_TYPE = a4wide + +# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX +# packages that should be included in the LaTeX output. + +EXTRA_PACKAGES = + +# The LATEX_HEADER tag can be used to specify a personal LaTeX header for +# the generated latex document. The header should contain everything until +# the first chapter. If it is left blank doxygen will generate a +# standard header. Notice: only use this tag if you know what you are doing! + +LATEX_HEADER = + +# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated +# is prepared for conversion to pdf (using ps2pdf). The pdf file will +# contain links (just like the HTML output) instead of page references +# This makes the output suitable for online browsing using a pdf viewer. + +PDF_HYPERLINKS = YES + +# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of +# plain latex in the generated Makefile. Set this option to YES to get a +# higher quality PDF documentation. + +USE_PDFLATEX = YES + +# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode. +# command to the generated LaTeX files. This will instruct LaTeX to keep +# running if errors occur, instead of asking the user for help. +# This option is also used when generating formulas in HTML. + +LATEX_BATCHMODE = NO + +# If LATEX_HIDE_INDICES is set to YES then doxygen will not +# include the index chapters (such as File Index, Compound Index, etc.) +# in the output. + +LATEX_HIDE_INDICES = NO + +# If LATEX_SOURCE_CODE is set to YES then doxygen will include +# source code with syntax highlighting in the LaTeX output. +# Note that which sources are shown also depends on other settings +# such as SOURCE_BROWSER. + +LATEX_SOURCE_CODE = NO + +#--------------------------------------------------------------------------- +# configuration options related to the RTF output +#--------------------------------------------------------------------------- + +# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output +# The RTF output is optimized for Word 97 and may not look very pretty with +# other RTF readers or editors. + +GENERATE_RTF = NO + +# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. +# If a relative path is entered the value of OUTPUT_DIRECTORY will be +# put in front of it. If left blank `rtf' will be used as the default path. + +RTF_OUTPUT = rtf + +# If the COMPACT_RTF tag is set to YES Doxygen generates more compact +# RTF documents. This may be useful for small projects and may help to +# save some trees in general. + +COMPACT_RTF = NO + +# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated +# will contain hyperlink fields. The RTF file will +# contain links (just like the HTML output) instead of page references. +# This makes the output suitable for online browsing using WORD or other +# programs which support those fields. +# Note: wordpad (write) and others do not support links. + +RTF_HYPERLINKS = NO + +# Load stylesheet definitions from file. Syntax is similar to doxygen's +# config file, i.e. a series of assignments. You only have to provide +# replacements, missing definitions are set to their default value. + +RTF_STYLESHEET_FILE = + +# Set optional variables used in the generation of an rtf document. +# Syntax is similar to doxygen's config file. + +RTF_EXTENSIONS_FILE = + +#--------------------------------------------------------------------------- +# configuration options related to the man page output +#--------------------------------------------------------------------------- + +# If the GENERATE_MAN tag is set to YES (the default) Doxygen will +# generate man pages + +GENERATE_MAN = NO + +# The MAN_OUTPUT tag is used to specify where the man pages will be put. +# If a relative path is entered the value of OUTPUT_DIRECTORY will be +# put in front of it. If left blank `man' will be used as the default path. + +MAN_OUTPUT = man + +# The MAN_EXTENSION tag determines the extension that is added to +# the generated man pages (default is the subroutine's section .3) + +MAN_EXTENSION = .3 + +# If the MAN_LINKS tag is set to YES and Doxygen generates man output, +# then it will generate one additional man file for each entity +# documented in the real man page(s). These additional files +# only source the real man page, but without them the man command +# would be unable to find the correct page. The default is NO. + +MAN_LINKS = NO + +#--------------------------------------------------------------------------- +# configuration options related to the XML output +#--------------------------------------------------------------------------- + +# If the GENERATE_XML tag is set to YES Doxygen will +# generate an XML file that captures the structure of +# the code including all documentation. + +GENERATE_XML = NO + +# The XML_OUTPUT tag is used to specify where the XML pages will be put. +# If a relative path is entered the value of OUTPUT_DIRECTORY will be +# put in front of it. If left blank `xml' will be used as the default path. + +XML_OUTPUT = xml + +# The XML_SCHEMA tag can be used to specify an XML schema, +# which can be used by a validating XML parser to check the +# syntax of the XML files. + +XML_SCHEMA = + +# The XML_DTD tag can be used to specify an XML DTD, +# which can be used by a validating XML parser to check the +# syntax of the XML files. + +XML_DTD = + +# If the XML_PROGRAMLISTING tag is set to YES Doxygen will +# dump the program listings (including syntax highlighting +# and cross-referencing information) to the XML output. Note that +# enabling this will significantly increase the size of the XML output. + +XML_PROGRAMLISTING = YES + +#--------------------------------------------------------------------------- +# configuration options for the AutoGen Definitions output +#--------------------------------------------------------------------------- + +# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will +# generate an AutoGen Definitions (see autogen.sf.net) file +# that captures the structure of the code including all +# documentation. Note that this feature is still experimental +# and incomplete at the moment. + +GENERATE_AUTOGEN_DEF = NO + +#--------------------------------------------------------------------------- +# configuration options related to the Perl module output +#--------------------------------------------------------------------------- + +# If the GENERATE_PERLMOD tag is set to YES Doxygen will +# generate a Perl module file that captures the structure of +# the code including all documentation. Note that this +# feature is still experimental and incomplete at the +# moment. + +GENERATE_PERLMOD = NO + +# If the PERLMOD_LATEX tag is set to YES Doxygen will generate +# the necessary Makefile rules, Perl scripts and LaTeX code to be able +# to generate PDF and DVI output from the Perl module output. + +PERLMOD_LATEX = NO + +# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be +# nicely formatted so it can be parsed by a human reader. This is useful +# if you want to understand what is going on. On the other hand, if this +# tag is set to NO the size of the Perl module output will be much smaller +# and Perl will parse it just the same. + +PERLMOD_PRETTY = YES + +# The names of the make variables in the generated doxyrules.make file +# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. +# This is useful so different doxyrules.make files included by the same +# Makefile don't overwrite each other's variables. + +PERLMOD_MAKEVAR_PREFIX = + +#--------------------------------------------------------------------------- +# Configuration options related to the preprocessor +#--------------------------------------------------------------------------- + +# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will +# evaluate all C-preprocessor directives found in the sources and include +# files. + +ENABLE_PREPROCESSING = YES + +# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro +# names in the source code. If set to NO (the default) only conditional +# compilation will be performed. Macro expansion can be done in a controlled +# way by setting EXPAND_ONLY_PREDEF to YES. + +MACRO_EXPANSION = NO + +# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES +# then the macro expansion is limited to the macros specified with the +# PREDEFINED and EXPAND_AS_DEFINED tags. + +EXPAND_ONLY_PREDEF = NO + +# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files +# in the INCLUDE_PATH (see below) will be search if a #include is found. + +SEARCH_INCLUDES = YES + +# The INCLUDE_PATH tag can be used to specify one or more directories that +# contain include files that are not input files but should be processed by +# the preprocessor. + +INCLUDE_PATH = + +# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard +# patterns (like *.h and *.hpp) to filter out the header-files in the +# directories. If left blank, the patterns specified with FILE_PATTERNS will +# be used. + +INCLUDE_FILE_PATTERNS = + +# The PREDEFINED tag can be used to specify one or more macro names that +# are defined before the preprocessor is started (similar to the -D option of +# gcc). The argument of the tag is a list of macros of the form: name +# or name=definition (no spaces). If the definition and the = are +# omitted =1 is assumed. To prevent a macro definition from being +# undefined via #undef or recursively expanded use the := operator +# instead of the = operator. + +PREDEFINED = + +# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then +# this tag can be used to specify a list of macro names that should be expanded. +# The macro definition that is found in the sources will be used. +# Use the PREDEFINED tag if you want to use a different macro definition. + +EXPAND_AS_DEFINED = + +# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then +# doxygen's preprocessor will remove all function-like macros that are alone +# on a line, have an all uppercase name, and do not end with a semicolon. Such +# function macros are typically used for boiler-plate code, and will confuse +# the parser if not removed. + +SKIP_FUNCTION_MACROS = YES + +#--------------------------------------------------------------------------- +# Configuration::additions related to external references +#--------------------------------------------------------------------------- + +# The TAGFILES option can be used to specify one or more tagfiles. +# Optionally an initial location of the external documentation +# can be added for each tagfile. The format of a tag file without +# this location is as follows: +# TAGFILES = file1 file2 ... +# Adding location for the tag files is done as follows: +# TAGFILES = file1=loc1 "file2 = loc2" ... +# where "loc1" and "loc2" can be relative or absolute paths or +# URLs. If a location is present for each tag, the installdox tool +# does not have to be run to correct the links. +# Note that each tag file must have a unique name +# (where the name does NOT include the path) +# If a tag file is not located in the directory in which doxygen +# is run, you must also specify the path to the tagfile here. + +TAGFILES = + +# When a file name is specified after GENERATE_TAGFILE, doxygen will create +# a tag file that is based on the input files it reads. + +GENERATE_TAGFILE = + +# If the ALLEXTERNALS tag is set to YES all external classes will be listed +# in the class index. If set to NO only the inherited external classes +# will be listed. + +ALLEXTERNALS = NO + +# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed +# in the modules index. If set to NO, only the current project's groups will +# be listed. + +EXTERNAL_GROUPS = YES + +# The PERL_PATH should be the absolute path and name of the perl script +# interpreter (i.e. the result of `which perl'). + +PERL_PATH = /usr/bin/perl + +#--------------------------------------------------------------------------- +# Configuration options related to the dot tool +#--------------------------------------------------------------------------- + +# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will +# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base +# or super classes. Setting the tag to NO turns the diagrams off. Note that +# this option is superseded by the HAVE_DOT option below. This is only a +# fallback. It is recommended to install and use dot, since it yields more +# powerful graphs. + +CLASS_DIAGRAMS = NO + +# You can define message sequence charts within doxygen comments using the \msc +# command. Doxygen will then run the mscgen tool (see +# http://www.mcternan.me.uk/mscgen/) to produce the chart and insert it in the +# documentation. The MSCGEN_PATH tag allows you to specify the directory where +# the mscgen tool resides. If left empty the tool is assumed to be found in the +# default search path. + +MSCGEN_PATH = + +# If set to YES, the inheritance and collaboration graphs will hide +# inheritance and usage relations if the target is undocumented +# or is not a class. + +HIDE_UNDOC_RELATIONS = YES + +# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is +# available from the path. This tool is part of Graphviz, a graph visualization +# toolkit from AT&T and Lucent Bell Labs. The other options in this section +# have no effect if this option is set to NO (the default) + +HAVE_DOT = NO + +# By default doxygen will write a font called FreeSans.ttf to the output +# directory and reference it in all dot files that doxygen generates. This +# font does not include all possible unicode characters however, so when you need +# these (or just want a differently looking font) you can specify the font name +# using DOT_FONTNAME. You need need to make sure dot is able to find the font, +# which can be done by putting it in a standard location or by setting the +# DOTFONTPATH environment variable or by setting DOT_FONTPATH to the directory +# containing the font. + +DOT_FONTNAME = FreeSans + +# The DOT_FONTSIZE tag can be used to set the size of the font of dot graphs. +# The default size is 10pt. + +DOT_FONTSIZE = 10 + +# By default doxygen will tell dot to use the output directory to look for the +# FreeSans.ttf font (which doxygen will put there itself). If you specify a +# different font using DOT_FONTNAME you can set the path where dot +# can find it using this tag. + +DOT_FONTPATH = + +# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen +# will generate a graph for each documented class showing the direct and +# indirect inheritance relations. Setting this tag to YES will force the +# the CLASS_DIAGRAMS tag to NO. + +CLASS_GRAPH = YES + +# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen +# will generate a graph for each documented class showing the direct and +# indirect implementation dependencies (inheritance, containment, and +# class references variables) of the class with other documented classes. + +COLLABORATION_GRAPH = YES + +# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen +# will generate a graph for groups, showing the direct groups dependencies + +GROUP_GRAPHS = YES + +# If the UML_LOOK tag is set to YES doxygen will generate inheritance and +# collaboration diagrams in a style similar to the OMG's Unified Modeling +# Language. + +UML_LOOK = NO + +# If set to YES, the inheritance and collaboration graphs will show the +# relations between templates and their instances. + +TEMPLATE_RELATIONS = NO + +# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT +# tags are set to YES then doxygen will generate a graph for each documented +# file showing the direct and indirect include dependencies of the file with +# other documented files. + +INCLUDE_GRAPH = YES + +# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and +# HAVE_DOT tags are set to YES then doxygen will generate a graph for each +# documented header file showing the documented files that directly or +# indirectly include this file. + +INCLUDED_BY_GRAPH = YES + +# If the CALL_GRAPH and HAVE_DOT options are set to YES then +# doxygen will generate a call dependency graph for every global function +# or class method. Note that enabling this option will significantly increase +# the time of a run. So in most cases it will be better to enable call graphs +# for selected functions only using the \callgraph command. + +CALL_GRAPH = NO + +# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then +# doxygen will generate a caller dependency graph for every global function +# or class method. Note that enabling this option will significantly increase +# the time of a run. So in most cases it will be better to enable caller +# graphs for selected functions only using the \callergraph command. + +CALLER_GRAPH = NO + +# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen +# will graphical hierarchy of all classes instead of a textual one. + +GRAPHICAL_HIERARCHY = YES + +# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES +# then doxygen will show the dependencies a directory has on other directories +# in a graphical way. The dependency relations are determined by the #include +# relations between the files in the directories. + +DIRECTORY_GRAPH = YES + +# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images +# generated by dot. Possible values are png, jpg, or gif +# If left blank png will be used. + +DOT_IMAGE_FORMAT = png + +# The tag DOT_PATH can be used to specify the path where the dot tool can be +# found. If left blank, it is assumed the dot tool can be found in the path. + +DOT_PATH = + +# The DOTFILE_DIRS tag can be used to specify one or more directories that +# contain dot files that are included in the documentation (see the +# \dotfile command). + +DOTFILE_DIRS = + +# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of +# nodes that will be shown in the graph. If the number of nodes in a graph +# becomes larger than this value, doxygen will truncate the graph, which is +# visualized by representing a node as a red box. Note that doxygen if the +# number of direct children of the root node in a graph is already larger than +# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note +# that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH. + +DOT_GRAPH_MAX_NODES = 50 + +# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the +# graphs generated by dot. A depth value of 3 means that only nodes reachable +# from the root by following a path via at most 3 edges will be shown. Nodes +# that lay further from the root node will be omitted. Note that setting this +# option to 1 or 2 may greatly reduce the computation time needed for large +# code bases. Also note that the size of a graph can be further restricted by +# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction. + +MAX_DOT_GRAPH_DEPTH = 0 + +# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent +# background. This is disabled by default, because dot on Windows does not +# seem to support this out of the box. Warning: Depending on the platform used, +# enabling this option may lead to badly anti-aliased labels on the edges of +# a graph (i.e. they become hard to read). + +DOT_TRANSPARENT = NO + +# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output +# files in one run (i.e. multiple -o and -T options on the command line). 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+

Generic cache system

+

Overview

+

+GCache is a generic multilevel priority based cache system which is useful for allocating resources +across RAM, GPU, disk, network etc.

+ +

Class documentation created using Doxyigen is available in the docs/html/ directory

+

A quick example might better explain the concept; see a more detailed example +for source code and in depth comments. we want to implement a priority cache for our +database of 10000 images. We will use 2 levels of caching, RAM and GPU while the images will be stored on disk.

+ +
    +
  • Each image is managed through a token which holds the pointer to the data and is used to assign a priority +to the image.
    • +
  • We subclass Cache to our RamCache and GpuCache and define function for loading from disk and +uploading the texture to the GPU
    • +
  • We can set priorities for the images according to our strategy.
    • +
  • Before rendering the image we lock the token and unlock it when done
    • +
+ + + +

Design

+

GCache is designed for very frequent priority updates where the majority of +resurces are involved. All the system is designed to minimize the computations +required to change priorities and sorting them.

+ +
+ +
+ +

Token

+

Each resource is managed through a pointer to a subclass of Token<Priority>. +Token pointers are transferred between caches but never created or deleted by the cache system. +The user is responsible for storage of the tokens.

+

+Adding tokens to the cache is done using the function Controller::addToken(Token *); +the tokens can be scheduled for removal using the function Token::remove() or be dropped +when the max number of tokens in the controller is reached +as set by Controller::setMaxTokens(int). Use Token::isInCache() to check +for actual removal.

+ + +

Priority

+

The Token class is templated over a typename Priority which usually +it is a floating point number, but it can be anything sortable through Priority::operator<(const Priority &). +The goal of the cache system is to juggle resources around so to have the highest priority tokens in the higher cache.

+ +

Use function Token::setPriority(Priority) to set tokens priority; it does not require mutexing and it is +therefore vert fast. The change will take effect only upon a call to Controller::updatePriorities().

+ +

Each cache holds a double heap of Tokens (see architecture picture), 'sorted' accordingly to priority. A double heap is a data structure with similar +properties to a heap but which allows quick extraction of both min and max element.

+ +

Priorities are sorted with a lazy approach, only when needed (usually when checking if a transfer should be performed. This +results in the higher, smaller caches being sorted more frequently than the larger lower caches.

+ + +

Caches

+ +

The user needs to subclass the Cache class and override the virtual functions get(Token *), +drop(Token *) and size(Token *). Each cache runs its own thread. Resource transfers (reading a file content, uploading a texture, etc) + are performed in that thread using blocking calls.

+ +

Cache are added to the controller using the function Controller::addCache(Cache *)

+ + +

The GCache employs a nested cache model: if a resource is present in a cache is also present in all the lower ones, + and thus each cache should have more capacity than the lower one. For sake of simplicity and performances each cache +is allowed to overflow its capacity by at most one resource. (see picture)

+ +
+ +
+ +

Locking

+

Resources must be locked before use, to prevent cache threads to unload them while in use. An object can be locked +only if already loaded in the highest cache, otherwise the lock() function will return false.

+

Unlock allows the resource to be eventually dropped from the cache. Locks are recursive which means Tokens keep track +of how many time lock() have been called and release the resource only after unlock() +is called that many times.

+

Loking and unlocking costs basically zero (we are using QAtomicInt).

+ + +

Minimal example

+

This is a minimal pseudo-code example, just to quickly cover the basis. For a real example, involving +also sending resources to the GPU using a share context check the example/my_widget.h file. +

+ +
+class MyToken: public Token<float> {
+ public:
+  MyData *data;
+  GLUint texture;
+};
+
+class RamCache: public Cache<MyToken> {
+ public:
+  //return size of object. return -1 on error
+  int get(MyToken *token)  { fread(someting into something); return 1; } 
+ //return size of objecy, cannot fail
+  int drop(MyToken *token) { delete memory; return 1; }
+  int size(MyToken *token) { return 1; }
+};
+
+class GpuCache: public Cache<MyToken> {
+ public:
+  int get(MyToken *token) { glCreate + glTexture;return 1; }
+  int drop(MyToken *token) { glDelete; return 1; }
+  int size(MyToken *token) { return 1; }
+};
+
+//generate tokens
+vector<MyToken> tokens;
+for(int i = 0; i < 10000; i++)
+tokens.push_back(MyToken(i));
+
+//create ram and gpu caches
+RamCache ram;
+ram.setCapacity(5000);
+GpuCache gpu;
+gpu.setCapacity(1000);
+
+//create controller and add caches
+Controller<MyToken> controller;
+controller.addCache(&ram);
+controller.addCache(&gpu);
+
+//tell controller about tokens and start
+for(int i = 0; i < tokens.size(); i++) {
+  tokens[i].setPriority(rand()/((double)RAND_MAX));
+  controller.addToken(&tokens[i]);
+}
+
+
+controller.start();
+
+//change priorities
+for(int i = 0; i < tokens.size(); i++)
+  tokens[i].setPriority(rand());
+controller.updatePriorities();
+
+//lock and use the tokens
+for(int i = 0; i < tokens.size(); i++) {
+  bool success = tokens[i].lock();
+  if(success) {
+  //use the token as you see fit
+    tokens[i].unlock();
+  }
+}
+
+ + +
+ + diff --git a/wrap/gcache/door.h b/wrap/gcache/door.h new file mode 100644 index 00000000..df8d08c7 --- /dev/null +++ b/wrap/gcache/door.h @@ -0,0 +1,101 @@ +/**************************************************************************** +* GCache * +* Author: Federico Ponchio * +* * +* Copyright(C) 2011 * +* Visual Computing Lab * +* ISTI - Italian National Research Council * +* * +* All rights reserved. * +* * +* This program is free software; you can redistribute it and/or modify * +* it under the terms of the GNU General Public License as published by * +* the Free Software Foundation; either version 2 of the License, or * +* (at your option) any later version. * +* * +* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) * +* for more details. * +* * +****************************************************************************/ + + +#ifndef CACHE_DOOR_H +#define CACHE_DOOR_H + + + + +/* +//a door needs to be open for the thread to continue, +//if it is open the thread enter and closes the door +//this mess is to avoid [if(!open.available()) open.release(1)] +#include +class QDoor { + private: + QSemaphore _open; + QSemaphore _close; + public: + QDoor(): _open(0), _close(1) {} //this means closed + void open() { + if(_close.tryAcquire(1)) //check it is not open + _open.release(1); //open + } + void close() { + if(_open.tryAcquire(1)) //check not already cloed + _close.release(1); + } + void enter(bool close = false) { + _open.acquire(1); + if(close) + _close.release(1); //and close door behind + else + _open.release(1); //and leave door opened + } + bool isOpen() { return _open.available() == 1; } +}; + +*/ +#include +#include + +/** + A wait condition class that works as a door. + Should check if the semaphore version is faster. +*/ + +class QDoor { + public: + + QDoor(void) : doorOpen(false) {} + + ///opens the door. Threads trying to enter will be awakened + void open(void) { + this->m.lock(); + this->doorOpen = true; + this->m.unlock(); + this->c.wakeAll(); + } + + ///attempt to enter the door. if the door is closed the thread will wait until the door is opened. + /** if close is true, the door will be closed after the thread is awakened, this allows to + have only one thread entering the door each time open() is called */ + void enter(bool close = false) { + this->m.lock(); + while (!this->doorOpen) + this->c.wait(&(this->m)); + + if(close) + this->doorOpen = false; + this->m.unlock(); + } + private: + QMutex m; + QWaitCondition c; + bool doorOpen; +}; + + +#endif diff --git a/wrap/gcache/provider.h b/wrap/gcache/provider.h new file mode 100644 index 00000000..f51b68b6 --- /dev/null +++ b/wrap/gcache/provider.h @@ -0,0 +1,87 @@ +#ifndef GCACHE_PROVIDER_H +#define GCACHE_PROVIDER_H + + +#include +#include "dheap.h" +#include "door.h" + +#include "token.h" + +/* this cache system enforce the rule that the items in a cache are always in all the cache below */ +/* two mechanism to remove tokens from the cache: + 1) set token count to something low + 2) set maximum number of tokens in the provider +*/ + +/** Base class for Cache and last cache in the GCache system. + You should never interact with this class. +*/ + +template +class Provider: public QThread { + public: + ///holds the resources in this cache but not in the cache above + PtrDHeap heap; + ///tokens above this number will be scheduled for deletion + int max_tokens; + ///signals we need to rebuild heap. + bool heap_dirty; + ///lock this before manipulating heap. + QMutex heap_lock; + ///used to sincronize priorities update + QMutex priority_lock; + ///signals (to next cache!) priorities have changed or something is available + QDoor check_queue; + + Provider(): max_tokens(-1), heap_dirty(false) {} + virtual ~Provider() {} + + /// [should be protected, do not use] + void pushPriorities() { + QMutexLocker locker(&priority_lock); + for(int i = 0; i < heap.size(); i++) + heap[i].pushPriority(); + heap_dirty = true; + check_queue.open(); + } + /// assumes heap lock is locked, runs in cache thread [should be protected, do not use] + void rebuild() { + if(!this->heap_dirty) return; + + { + QMutexLocker locker(&priority_lock); + for(int i = 0; i < this->heap.size(); i++) + this->heap[i].pullPriority(); + this->heap_dirty = false; + } + this->heap.rebuild(); + + //remove OUTSIDE tokens from bottom of heap + if(max_tokens != -1) { + while(this->heap.size() > max_tokens) { + Token &t = this->heap.min(); + t.count = Token::OUTSIDE; + this->heap.popMin(); + } + } + } + + ///ensure no locked item are to be removed [should be protected, do not use] + template void flush(FUNCTOR functor) { + int count = 0; + QMutexLocker locker(&(this->heap_lock)); + for(int k = 0; k < this->heap.size(); k++) { + Token *token = &this->heap[k]; + if(functor(token)) { //drop it + token->count = Token::OUTSIDE; + } else + this->heap.at(count++) = token; + } + this->heap.resize(count); + this->heap_dirty = true; + } +}; + + +#endif diff --git a/wrap/gcache/token.h b/wrap/gcache/token.h new file mode 100644 index 00000000..22febdc6 --- /dev/null +++ b/wrap/gcache/token.h @@ -0,0 +1,91 @@ +#ifndef GCACHE_TOKEN_H +#define GCACHE_TOKEN_H + +#include + +/* QAtomic int count keep trak of token status: + >0: locked (possibly multiple times) + 0: data ready in last cache + -1: not in last cache + -2: to removed from all caches + -3: out of caches + */ + +/** Holds the resources to be cached. + The Priority template argument can simply be a floating point number + or something more complex, (frame and error in pixel); the only + requirement is the existence of a < comparison operator */ + +template +class Token { + public: + ///Resource loading status + /*** - LOCKED: resource in the higher cache and locked + - READY: resource in the higher cache + - CACHE: resource in some cache (not the highest) + - REMOVE: resource in some cache and scheduled for removal + - OUTSIDE: resource not in the cache system */ + enum Status { LOCKED = 1, READY = 0, CACHE = -1, REMOVE = -2, OUTSIDE = -3 }; + ///Do not access these members directly. Will be moved to private shortly. + ///used by various cache threads to sort objects [do not use, should be private] + Priority priority; + ///set in the main thread [do not use, should be private] + Priority new_priority; + ///swap space used in updatePriorities [do not use, should be private] + Priority tmp_priority; + ///reference count of locked items [do not use, should be private] + QAtomicInt count; + + public: + Token(): count(OUTSIDE) {} + + ///the new priority will be effective only after a call to Controller::updatePriorities() + void setPriority(const Priority &p) { + new_priority = p; + } + Priority getPriority() { + return new_priority; + } + ///return false if resource not in highest query. remember to unlock when done + bool lock() { + if(count.fetchAndAddAcquire(1) >= 0) return true; + count.deref(); + return false; + } + ///assumes it was locked first and 1 unlock for each lock. + bool unlock() { + return count.deref(); + } + + ///can't be removed if locked and will return false + bool remove() { + count.testAndSetOrdered(READY, REMOVE); + count.testAndSetOrdered(CACHE, REMOVE); + return count <= REMOVE; //might have become OUSIDE in the meanwhile + } + + bool isLocked() { return count > 0; } + bool isInCache() { return count != OUTSIDE; } //careful, can be used only when provider thread is locked. + + ///copy priority to swap space [do not use, should be private] + void pushPriority() { + tmp_priority = new_priority; + } + ///copy priority from swap space [do not use, should be private] + void pullPriority() { + priority = tmp_priority; + } + + bool operator<(const Token &a) const { + if(count == a.count) + return priority < a.priority; + return count < a.count; + } + bool operator>(const Token &a) const { + if(count == a.count) + return priority > a.priority; + return count > a.count; + } +}; + +#endif // GCACHE_H