summaryrefslogtreecommitdiffstats
path: root/tdecore/ksycoca.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'tdecore/ksycoca.cpp')
-rw-r--r--tdecore/ksycoca.cpp528
1 files changed, 0 insertions, 528 deletions
diff --git a/tdecore/ksycoca.cpp b/tdecore/ksycoca.cpp
deleted file mode 100644
index 0a2cd2511..000000000
--- a/tdecore/ksycoca.cpp
+++ /dev/null
@@ -1,528 +0,0 @@
-/* This file is part of the KDE libraries
- * Copyright (C) 1999-2000 Waldo Bastian <bastian@kde.org>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License version 2 as published by the Free Software Foundation;
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- **/
-
-#include "config.h"
-
-#include "ksycoca.h"
-#include "ksycocatype.h"
-#include "ksycocafactory.h"
-
-#include <tqdatastream.h>
-#include <tqfile.h>
-#include <tqbuffer.h>
-
-#include <kapplication.h>
-#include <dcopclient.h>
-#include <kglobal.h>
-#include <kdebug.h>
-#include <kprocess.h>
-#include <kstandarddirs.h>
-
-#include <assert.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
-#ifdef Q_OS_SOLARIS
-extern "C"
-{
- extern int madvise(caddr_t, size_t, int);
-}
-#endif
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((void *) -1)
-#endif
-
-template class TQPtrList<KSycocaFactory>;
-
-// The following limitations are in place:
-// Maximum length of a single string: 8192 bytes
-// Maximum length of a string list: 1024 strings
-// Maximum number of entries: 8192
-//
-// The purpose of these limitations is to limit the impact
-// of database corruption.
-
-class KSycocaPrivate {
-public:
- KSycocaPrivate() {
- database = 0;
- readError = false;
- updateSig = 0;
- autoRebuild = true;
- }
- TQFile *database;
- TQStringList changeList;
- TQString language;
- bool readError;
- bool autoRebuild;
- TQ_UINT32 updateSig;
- TQStringList allResourceDirs;
-};
-
-int KSycoca::version()
-{
- return KSYCOCA_VERSION;
-}
-
-// Read-only constructor
-KSycoca::KSycoca()
- : DCOPObject("ksycoca"), m_lstFactories(0), m_str(0), m_barray(0), bNoDatabase(false),
- m_sycoca_size(0), m_sycoca_mmap(0), m_timeStamp(0)
-{
- d = new KSycocaPrivate;
- // Register app as able to receive DCOP messages
- if (kapp && !kapp->dcopClient()->isAttached())
- {
- kapp->dcopClient()->attach();
- }
- // We register with DCOP _before_ we try to open the database.
- // This way we can be relative sure that the KDE framework is
- // up and running (tdeinit, dcopserver, klaucnher, kded) and
- // that the database is up to date.
- openDatabase();
- _self = this;
-}
-
-bool KSycoca::openDatabase( bool openDummyIfNotFound )
-{
- bool result = true;
-
- m_sycoca_mmap = 0;
- m_str = 0;
- m_barray = 0;
- TQString path;
- TQCString ksycoca_env = getenv("TDESYCOCA");
- if (ksycoca_env.isEmpty())
- path = TDEGlobal::dirs()->saveLocation("cache") + "ksycoca";
- else
- path = TQFile::decodeName(ksycoca_env);
-
- kdDebug(7011) << "Trying to open ksycoca from " << path << endl;
- TQFile *database = new TQFile(path);
- bool bOpen = database->open( IO_ReadOnly );
- if (!bOpen)
- {
- path = locate("services", "ksycoca");
- if (!path.isEmpty())
- {
- kdDebug(7011) << "Trying to open global ksycoca from " << path << endl;
- delete database;
- database = new TQFile(path);
- bOpen = database->open( IO_ReadOnly );
- }
- }
-
- if (bOpen)
- {
- fcntl(database->handle(), F_SETFD, FD_CLOEXEC);
- m_sycoca_size = database->size();
-#ifdef HAVE_MMAP
- m_sycoca_mmap = (const char *) mmap(0, m_sycoca_size,
- PROT_READ, MAP_SHARED,
- database->handle(), 0);
- /* POSIX mandates only MAP_FAILED, but we are paranoid so check for
- null pointer too. */
- if (m_sycoca_mmap == (const char*) MAP_FAILED || m_sycoca_mmap == 0)
- {
- kdDebug(7011) << "mmap failed. (length = " << m_sycoca_size << ")" << endl;
-#endif
- m_str = new TQDataStream(database);
-#ifdef HAVE_MMAP
- }
- else
- {
-#ifdef HAVE_MADVISE
- (void) madvise((char*)m_sycoca_mmap, m_sycoca_size, MADV_WILLNEED);
-#endif
- m_barray = new TQByteArray();
- m_barray->setRawData(m_sycoca_mmap, m_sycoca_size);
- TQBuffer *buffer = new TQBuffer( *m_barray );
- buffer->open(IO_ReadWrite);
- m_str = new TQDataStream( buffer);
- }
-#endif
- bNoDatabase = false;
- }
- else
- {
- kdDebug(7011) << "Could not open ksycoca" << endl;
-
- // No database file
- delete database;
- database = 0;
-
- bNoDatabase = true;
- if (openDummyIfNotFound)
- {
- // We open a dummy database instead.
- //kdDebug(7011) << "No database, opening a dummy one." << endl;
- TQBuffer *buffer = new TQBuffer();
- buffer->setBuffer(TQByteArray());
- buffer->open(IO_ReadWrite);
- m_str = new TQDataStream( buffer);
- (*m_str) << (TQ_INT32) KSYCOCA_VERSION;
- (*m_str) << (TQ_INT32) 0;
- }
- else
- {
- result = false;
- }
- }
- m_lstFactories = new KSycocaFactoryList();
- m_lstFactories->setAutoDelete( true );
- d->database = database;
- return result;
-}
-
-// Read-write constructor - only for KBuildSycoca
-KSycoca::KSycoca( bool /* dummy */ )
- : DCOPObject("ksycoca_building"), m_lstFactories(0), m_str(0), m_barray(0), bNoDatabase(false),
- m_sycoca_size(0), m_sycoca_mmap(0)
-{
- d = new KSycocaPrivate;
- m_lstFactories = new KSycocaFactoryList();
- m_lstFactories->setAutoDelete( true );
- _self = this;
-}
-
-static void delete_ksycoca_self() {
- delete KSycoca::_self;
-}
-
-KSycoca * KSycoca::self()
-{
- if (!_self) {
- tqAddPostRoutine(delete_ksycoca_self);
- _self = new KSycoca();
- }
- return _self;
-}
-
-KSycoca::~KSycoca()
-{
- closeDatabase();
- delete d;
- _self = 0L;
-}
-
-void KSycoca::closeDatabase()
-{
- QIODevice *device = 0;
- if (m_str)
- device = m_str->device();
-#ifdef HAVE_MMAP
- if (device && m_sycoca_mmap)
- {
- TQBuffer *buf = static_cast<TQBuffer*>(device);
- buf->buffer().resetRawData(m_sycoca_mmap, m_sycoca_size);
- // Solaris has munmap(char*, size_t) and everything else should
- // be happy with a char* for munmap(void*, size_t)
- munmap((char*) m_sycoca_mmap, m_sycoca_size);
- m_sycoca_mmap = 0;
- }
-#endif
-
- delete m_str;
- m_str = 0;
- delete device;
- if (TQT_TQIODEVICE(d->database) != device)
- delete d->database;
- if (m_barray) delete m_barray;
- m_barray = 0;
- device = 0;
- d->database = 0;
- // It is very important to delete all factories here
- // since they cache information about the database file
- delete m_lstFactories;
- m_lstFactories = 0L;
-}
-
-void KSycoca::addFactory( KSycocaFactory *factory )
-{
- assert(m_lstFactories);
- m_lstFactories->append(factory);
-}
-
-bool KSycoca::isChanged(const char *type)
-{
- return self()->d->changeList.contains(type);
-}
-
-void KSycoca::notifyDatabaseChanged(const TQStringList &changeList)
-{
- d->changeList = changeList;
- //kdDebug(7011) << "got a notifyDatabaseChanged signal !" << endl;
- // kded tells us the database file changed
- // Close the database and forget all about what we knew
- // The next call to any public method will recreate
- // everything that's needed.
- closeDatabase();
-
- // Now notify applications
- emit databaseChanged();
-}
-
-TQDataStream * KSycoca::findEntry(int offset, KSycocaType &type)
-{
- if ( !m_str )
- openDatabase();
- //kdDebug(7011) << TQString("KSycoca::_findEntry(offset=%1)").arg(offset,8,16) << endl;
- m_str->device()->at(offset);
- TQ_INT32 aType;
- (*m_str) >> aType;
- type = (KSycocaType) aType;
- //kdDebug(7011) << TQString("KSycoca::found type %1").arg(aType) << endl;
- return m_str;
-}
-
-bool KSycoca::checkVersion(bool abortOnError)
-{
- if ( !m_str )
- {
- if( !openDatabase(false /* don't open dummy db if not found */) )
- return false; // No database found
-
- // We should never get here... if a database was found then m_str shouldn't be 0L.
- assert(m_str);
- }
- m_str->device()->at(0);
- TQ_INT32 aVersion;
- (*m_str) >> aVersion;
- if ( aVersion < KSYCOCA_VERSION )
- {
- kdWarning(7011) << "Found version " << aVersion << ", expecting version " << KSYCOCA_VERSION << " or higher." << endl;
- if (!abortOnError) return false;
- kdError(7011) << "Outdated database ! Stop kded and restart it !" << endl;
- abort();
- }
- return true;
-}
-
-TQDataStream * KSycoca::findFactory(KSycocaFactoryId id)
-{
- // The constructor found no database, but we want one
- if (bNoDatabase)
- {
- closeDatabase(); // close the dummy one
- // Check if new database already available
- if ( !openDatabase(false /* no dummy one*/) )
- {
- static bool triedLaunchingKdeinit = false;
- if (!triedLaunchingKdeinit) // try only once
- {
- triedLaunchingKdeinit = true;
- kdDebug(7011) << "findFactory: we have no database.... launching tdeinit" << endl;
- TDEApplication::startKdeinit();
- // Ok, the new database should be here now, open it.
- }
- if (!openDatabase(false))
- return 0L; // Still no database - uh oh
- }
- }
- // rewind and check
- if (!checkVersion(false))
- {
- kdWarning(7011) << "Outdated database found" << endl;
- return 0L;
- }
- TQ_INT32 aId;
- TQ_INT32 aOffset;
- while(true)
- {
- (*m_str) >> aId;
- //kdDebug(7011) << TQString("KSycoca::findFactory : found factory %1").arg(aId) << endl;
- if (aId == 0)
- {
- kdError(7011) << "Error, KSycocaFactory (id = " << int(id) << ") not found!" << endl;
- break;
- }
- (*m_str) >> aOffset;
- if (aId == id)
- {
- //kdDebug(7011) << TQString("KSycoca::findFactory(%1) offset %2").arg((int)id).arg(aOffset) << endl;
- m_str->device()->at(aOffset);
- return m_str;
- }
- }
- return 0;
-}
-
-TQString KSycoca::kfsstnd_prefixes()
-{
- if (bNoDatabase) return "";
- if (!checkVersion(false)) return "";
- TQ_INT32 aId;
- TQ_INT32 aOffset;
- // skip factories offsets
- while(true)
- {
- (*m_str) >> aId;
- if ( aId )
- (*m_str) >> aOffset;
- else
- break; // just read 0
- }
- // We now point to the header
- TQString prefixes;
- KSycocaEntry::read(*m_str, prefixes);
- (*m_str) >> m_timeStamp;
- KSycocaEntry::read(*m_str, d->language);
- (*m_str) >> d->updateSig;
- KSycocaEntry::read(*m_str, d->allResourceDirs);
- return prefixes;
-}
-
-TQ_UINT32 KSycoca::timeStamp()
-{
- if (!m_timeStamp)
- (void) kfsstnd_prefixes();
- return m_timeStamp;
-}
-
-TQ_UINT32 KSycoca::updateSignature()
-{
- if (!m_timeStamp)
- (void) kfsstnd_prefixes();
- return d->updateSig;
-}
-
-TQString KSycoca::language()
-{
- if (d->language.isEmpty())
- (void) kfsstnd_prefixes();
- return d->language;
-}
-
-TQStringList KSycoca::allResourceDirs()
-{
- if (!m_timeStamp)
- (void) kfsstnd_prefixes();
- return d->allResourceDirs;
-}
-
-TQString KSycoca::determineRelativePath( const TQString & _fullpath, const char *_resource )
-{
- TQString sRelativeFilePath;
- TQStringList dirs = TDEGlobal::dirs()->resourceDirs( _resource );
- TQStringList::ConstIterator dirsit = dirs.begin();
- for ( ; dirsit != dirs.end() && sRelativeFilePath.isEmpty(); ++dirsit ) {
- // might need canonicalPath() ...
- if ( _fullpath.find( *dirsit ) == 0 ) // path is dirs + relativePath
- sRelativeFilePath = _fullpath.mid( (*dirsit).length() ); // skip appsdirs
- }
- if ( sRelativeFilePath.isEmpty() )
- kdFatal(7011) << TQString(TQString("Couldn't find %1 in any %2 dir !!!").arg( _fullpath ).arg( _resource)) << endl;
- //else
- // debug code
- //kdDebug(7011) << sRelativeFilePath << endl;
- return sRelativeFilePath;
-}
-
-KSycoca * KSycoca::_self = 0L;
-
-void KSycoca::flagError()
-{
- tqWarning("ERROR: KSycoca database corruption!");
- if (_self)
- {
- if (_self->d->readError)
- return;
- _self->d->readError = true;
- if (_self->d->autoRebuild)
- if(system("kbuildsycoca") < 0) // Rebuild the damned thing.
- tqWarning("ERROR: Running KSycoca failed.");
- }
-}
-
-void KSycoca::disableAutoRebuild()
-{
- d->autoRebuild = false;
-}
-
-bool KSycoca::readError()
-{
- bool b = false;
- if (_self)
- {
- b = _self->d->readError;
- _self->d->readError = false;
- }
- return b;
-}
-
-void KSycocaEntry::read( TQDataStream &s, TQString &str )
-{
- TQ_UINT32 bytes;
- s >> bytes; // read size of string
- if ( bytes > 8192 ) { // null string or too big
- if (bytes != 0xffffffff)
- KSycoca::flagError();
- str = TQString::null;
- }
- else if ( bytes > 0 ) { // not empty
- int bt = bytes/2;
- str.setLength( bt );
- TQChar* ch = (TQChar *) str.unicode();
- char t[8192];
- char *b = t;
- s.readRawBytes( b, bytes );
- while ( bt-- ) {
- *ch++ = (ushort) (((ushort)b[0])<<8) | (uchar)b[1];
- b += 2;
- }
- } else {
- str = "";
- }
-}
-
-void KSycocaEntry::read( TQDataStream &s, TQStringList &list )
-{
- list.clear();
- TQ_UINT32 count;
- s >> count; // read size of list
- if (count >= 1024)
- {
- KSycoca::flagError();
- return;
- }
- for(TQ_UINT32 i = 0; i < count; i++)
- {
- TQString str;
- read(s, str);
- list.append( str );
- if (s.atEnd())
- {
- KSycoca::flagError();
- return;
- }
- }
-}
-
-void KSycoca::virtual_hook( int id, void* data )
-{ DCOPObject::virtual_hook( id, data ); }
-
-void KSycocaEntry::virtual_hook( int, void* )
-{ /*BASE::virtual_hook( id, data );*/ }
-
-#include "ksycoca.moc"
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 15:48:25 +0000