From f76c82403888bb498973ec974dbfd20e4edb02fe Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Fri, 30 Jun 2017 20:13:51 +0200 Subject: nxcomp: Switch to autoreconf. --- nxcomp/Keeper.cpp | 608 ------------------------------------------------------ 1 file changed, 608 deletions(-) delete mode 100644 nxcomp/Keeper.cpp (limited to 'nxcomp/Keeper.cpp') diff --git a/nxcomp/Keeper.cpp b/nxcomp/Keeper.cpp deleted file mode 100644 index 7e8cd0cd7..000000000 --- a/nxcomp/Keeper.cpp +++ /dev/null @@ -1,608 +0,0 @@ -/**************************************************************************/ -/* */ -/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ -/* Copyright (c) 2008-2014 Oleksandr Shneyder */ -/* Copyright (c) 2014-2016 Ulrich Sibiller */ -/* Copyright (c) 2014-2016 Mihai Moldovan */ -/* Copyright (c) 2011-2016 Mike Gabriel */ -/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ -/* */ -/* NXCOMP, NX protocol compression and NX extensions to this software */ -/* are copyright of the aforementioned persons and companies. */ -/* */ -/* Redistribution and use of the present software is allowed according */ -/* to terms specified in the file LICENSE.nxcomp which comes in the */ -/* source distribution. */ -/* */ -/* All rights reserved. */ -/* */ -/* NOTE: This software has received contributions from various other */ -/* contributors, only the core maintainers and supporters are listed as */ -/* copyright holders. Please contact us, if you feel you should be listed */ -/* as copyright holder, as well. */ -/* */ -/**************************************************************************/ - -#include -#include -#include -#include -#include - -#include "Keeper.h" - -// -// Set the verbosity level. -// - -#define PANIC -#define WARNING -#undef TEST -#undef DEBUG - -// -// Remove the directory if it's empty -// since more than 30 * 24 h. -// - -#define EMPTY_DIR_TIME 2592000 - -// -// Sleep once any ONCE entries. -// - -#define ONCE 2 - -// -// Define this to trace messages while -// they are allocated and deallocated. -// - -#undef REFERENCES - -// -// This is used for reference count. -// - -#ifdef REFERENCES - -int File::references_ = 0; - -#endif - -bool T_older::operator () (File *a, File *b) const -{ - return a -> compare(b); -} - -File::File() -{ - name_ = NULL; - - size_ = 0; - time_ = 0; - - #ifdef REFERENCES - - references_++; - - *logofs << "Keeper: Created new File at " - << this << " out of " << references_ - << " allocated references.\n" - << logofs_flush; - - #endif -} - -// -// TODO: This class can leak industrial amounts of memory. -// I'm 100% sure that the desctructor is called and that -// also the string pointed in the File structure is dele- -// ted. Everything is logged, but still the memory is not -// freed. This is less a problem on Windows, where the me- -// mory occupation remains almost constant. Obviously the -// problem lies in the STL allocators of the GNU libstc++. -// - -File::~File() -{ - #ifdef TEST - *logofs << "Keeper: Deleting name for File at " - << this << ".\n" << logofs_flush; - #endif - - delete [] name_; - - #ifdef REFERENCES - - *logofs << "Keeper: Deleted File at " - << this << " out of " << references_ - << " allocated references.\n" - << logofs_flush; - - references_--; - - #endif -} - -bool File::compare(File *b) const -{ - if (this -> time_ == b -> time_) - { - return (this -> size_ < b -> size_); - } - - return (this -> time_ < b -> time_); -} - -Keeper::Keeper(int caches, int images, const char *root, - int sleep, int parent) -{ - caches_ = caches; - images_ = images; - sleep_ = sleep; - parent_ = parent; - - root_ = new char[strlen(root) + 1]; - - strcpy(root_, root); - - total_ = 0; - signal_ = 0; - - files_ = new T_files; -} - -Keeper::~Keeper() -{ - empty(); - - delete files_; - - delete [] root_; -} - -int Keeper::cleanupCaches() -{ - #ifdef TEST - *logofs << "Keeper: Looking for cache directories in '" - << root_ << "'.\n" << logofs_flush; - #endif - - DIR *rootDir = opendir(root_); - - if (rootDir != NULL) - { - dirent *dirEntry; - - struct stat fileStat; - - int baseSize = strlen(root_); - - int s = 0; - - while (((dirEntry = readdir(rootDir)) != NULL)) - { - if (s++ % ONCE == 0) usleep(sleep_ * 1000); - - if (signal_ != 0) break; - - if (strcmp(dirEntry -> d_name, "cache") == 0 || - strncmp(dirEntry -> d_name, "cache-", 6) == 0) - { - char *dirName = new char[baseSize + strlen(dirEntry -> d_name) + 2]; - - if (dirName == NULL) - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Can't check directory entry '" - << dirEntry -> d_name << "'.\n" << logofs_flush; - #endif - - delete [] dirName; - - continue; - } - - strcpy(dirName, root_); - strcpy(dirName + baseSize, "/"); - strcpy(dirName + baseSize + 1, dirEntry -> d_name); - - #ifdef TEST - *logofs << "Keeper: Checking directory '" << dirName - << "'.\n" << logofs_flush; - #endif - - if (stat(dirName, &fileStat) == 0 && - S_ISDIR(fileStat.st_mode) != 0) - { - // - // Add to repository all the "C-" and - // "S-" files in the given directory. - // - - collect(dirName); - } - - delete [] dirName; - } - } - - closedir(rootDir); - } - else - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Can't open NX root directory '" - << root_ << "'. Error is " << EGET() << " '" - << ESTR() << "'.\n" << logofs_flush; - #endif - - cerr << "Warning" << ": Can't open NX root directory '" - << root_ << "'. Error is " << EGET() << " '" - << ESTR() << "'.\n"; - } - - // - // Remove older files. - // - - cleanup(caches_); - - // - // Empty the repository. - // - - empty(); - - return 1; -} - -int Keeper::cleanupImages() -{ - #ifdef TEST - *logofs << "Keeper: Looking for image directory in '" - << root_ << "'.\n" << logofs_flush; - #endif - - char *imagesPath = new char[strlen(root_) + strlen("/images") + 1]; - - if (imagesPath == NULL) - { - return -1; - } - - strcpy(imagesPath, root_); - strcat(imagesPath, "/images"); - - // - // Check if the cache directory does exist. - // - - struct stat dirStat; - - if (stat(imagesPath, &dirStat) == -1) - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Can't stat NX images cache directory '" - << imagesPath << ". Error is " << EGET() << " '" - << ESTR() << "'.\n" << logofs_flush; - #endif - - cerr << "Warning" << ": Can't stat NX images cache directory '" - << imagesPath << ". Error is " << EGET() << " '" - << ESTR() << "'.\n"; - - delete [] imagesPath; - - return -1; - } - - // - // Check any of the 16 directories in the - // images root path. - // - - char *digitPath = new char[strlen(imagesPath) + 5]; - - strcpy(digitPath, imagesPath); - - for (char digit = 0; digit < 16; digit++) - { - // - // Give up if we received a signal or - // our parent is gone. - // - - if (signal_ != 0) - { - #ifdef TEST - *logofs << "Keeper: Signal detected. Aborting.\n" - << logofs_flush; - #endif - - goto KeeperCleanupImagesAbort; - } - else if (parent_ != getppid() || parent_ == 1) - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Parent process appears " - << "to be dead. Returning.\n" - << logofs_flush; - #endif - - goto KeeperCleanupImagesAbort; - - return 0; - } - - sprintf(digitPath + strlen(imagesPath), "/I-%01X", digit); - - // - // Add to the repository all the files - // in the given directory. - // - - collect(digitPath); - } - - delete [] imagesPath; - delete [] digitPath; - - // - // Remove the oldest files. - // - - cleanup(images_); - - // - // Empty the repository. - // - - empty(); - - return 1; - -KeeperCleanupImagesAbort: - - delete [] imagesPath; - delete [] digitPath; - - empty(); - - return 0; -} - -int Keeper::collect(const char *path) -{ - #ifdef TEST - *logofs << "Keeper: Looking for files in directory '" - << path << "'.\n" << logofs_flush; - #endif - - DIR *cacheDir = opendir(path); - - if (cacheDir != NULL) - { - File *file; - - dirent *dirEntry; - - struct stat fileStat; - - int baseSize = strlen(path); - int fileSize = baseSize + 3 + MD5_LENGTH * 2 + 1; - - int n = 0; - int s = 0; - - while (((dirEntry = readdir(cacheDir)) != NULL)) - { - if (s++ % ONCE == 0) usleep(sleep_ * 1000); - - if (signal_ != 0) break; - - if (strcmp(dirEntry -> d_name, ".") == 0 || - strcmp(dirEntry -> d_name, "..") == 0) - { - continue; - } - - n++; - - if (strlen(dirEntry -> d_name) == (MD5_LENGTH * 2 + 2) && - (strncmp(dirEntry -> d_name, "I-", 2) == 0 || - strncmp(dirEntry -> d_name, "S-", 2) == 0 || - strncmp(dirEntry -> d_name, "C-", 2) == 0)) - { - file = new File(); - - char *fileName = new char[fileSize]; - - if (file == NULL || fileName == NULL) - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Can't add file '" - << dirEntry -> d_name << "' to repository.\n" - << logofs_flush; - #endif - - delete [] fileName; - - delete file; - - continue; - } - - strcpy(fileName, path); - strcpy(fileName + baseSize, "/"); - strcpy(fileName + baseSize + 1, dirEntry -> d_name); - - file -> name_ = fileName; - - #ifdef DEBUG - *logofs << "Keeper: Adding file '" << file -> name_ - << "'.\n" << logofs_flush; - #endif - - if (stat(file -> name_, &fileStat) == -1) - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Can't stat NX file '" - << file -> name_ << ". Error is " << EGET() - << " '" << ESTR() << "'.\n" - << logofs_flush; - #endif - - delete file; - - continue; - } - - file -> size_ = fileStat.st_size; - file -> time_ = fileStat.st_mtime; - - files_ -> insert(T_files::value_type(file)); - - total_ += file -> size_; - } - } - - closedir(cacheDir); - - if (n == 0) - { - time_t now = time(NULL); - - if (now > 0 && stat(path, &fileStat) == 0) - { - #ifdef TEST - *logofs << "Keeper: Empty NX subdirectory '" << path - << "' unused since " << now - fileStat.st_mtime - << " S.\n" << logofs_flush; - #endif - - if (now - fileStat.st_mtime > EMPTY_DIR_TIME) - { - #ifdef TEST - *logofs << "Keeper: Removing empty NX subdirectory '" - << path << "'.\n" << logofs_flush; - #endif - - rmdir(path); - } - } - } - } - else - { - #ifdef WARNING - *logofs << "Keeper: WARNING! Can't open NX subdirectory '" - << path << ". Error is " << EGET() << " '" << ESTR() - << "'.\n" << logofs_flush; - #endif - - cerr << "Warning" << ": Can't open NX subdirectory '" - << path << ". Error is " << EGET() << " '" << ESTR() - << "'.\n"; - } - - return 1; -} - -int Keeper::cleanup(int threshold) -{ - #ifdef TEST - *logofs << "Keeper: Deleting the oldest files with " - << files_ -> size() << " elements threshold " - << threshold << " and size " << total_ << ".\n" - << logofs_flush; - #endif - - // - // At least some versions of the standard - // library don't allow erasing an element - // while looping. This is not the most ef- - // ficient way to release the objects, but - // it's better than making a copy of the - // container. - // - - while (total_ > threshold && files_ -> size() > 0) - { - T_files::iterator i = files_ -> begin(); - - File *file = *i; - - #ifdef TEST - *logofs << "Keeper: Removing '" << file -> name_ - << "' with time " << file -> time_ << " and size " - << file -> size_ << ".\n" << logofs_flush; - #endif - - unlink(file -> name_); - - total_ -= file -> size_; - - #ifdef DEBUG - *logofs << "Keeper: Going to delete the file at " - << file << " while cleaning up.\n" - << logofs_flush; - #endif - - delete file; - - #ifdef DEBUG - *logofs << "Keeper: Going to erase the element " - << "while cleaning up.\n" - << logofs_flush; - #endif - - files_ -> erase(i); - } - - #ifdef TEST - *logofs << "Keeper: Bytes in repository are " - << total_ << ".\n" << logofs_flush; - #endif - - return 1; -} - -void Keeper::empty() -{ - #ifdef TEST - *logofs << "Keeper: Getting rid of files in repository.\n" - << logofs_flush; - #endif - - while (files_ -> size() > 0) - { - T_files::iterator i = files_ -> begin(); - - File *file = *i; - - #ifdef DEBUG - *logofs << "Keeper: Going to delete the file at " - << file << " while emptying.\n" - << logofs_flush; - #endif - - delete file; - - #ifdef DEBUG - *logofs << "Keeper: Going to erase the element " - << "while emptying.\n" - << logofs_flush; - #endif - - files_ -> erase(i); - } - - total_ = 0; - - #ifdef TEST - *logofs << "Keeper: Bytes in repository are " - << total_ << ".\n" << logofs_flush; - #endif -} -- cgit v1.2.3