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List:       kde-windows
Subject:    Re: Problem with ksycoca on windows
From:       Ralf Habacker <ralf.habacker () freenet ! de>
Date:       2008-02-14 19:17:27
Message-ID: 47B493C7.5060400 () freenet ! de
[Download RAW message or body]

Christian Ehrlicher schrieb:
> Hi,
>
> I've a problem on windows - when ksycoca is running / the db is open, I
> can't execute kbuildsycoca to update the db. The problem is that
> kbuildsycoca can't overwrite an open file on windows.
> There're two solutions
> - let kbuildsycoca create ksyscoca.new and rename the file when db is closed
> - open the file in a special mode so I can delete it also someone has an
> open file handle on it. But for this I can't use QFile and I don't know
> if it really works like it should.
>   
Appended is a patch which loaded the ksycoca database complete into 
memory and close the file, so that kbuildsycoca can update the file 
without problems.
Any objectivies ?

>
> Any ideas?
> Christian
>
>   
> ------------------------------------------------------------------------
>
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> Kde-windows@kde.org
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>   


["ksycoca-in-memory.patch" (text/plain)]

Index: ksycoca.cpp
===================================================================
--- ksycoca.cpp	(revision 774546)
+++ ksycoca.cpp	(working copy)
@@ -36,6 +36,10 @@
 #include <stdlib.h>
 #include <fcntl.h>
 
+#ifdef Q_OS_WIN
+#undef HAVE_MMAP
+#endif
+
 #ifdef HAVE_SYS_MMAN_H
 #include <sys/mman.h>
 #endif
@@ -181,7 +185,12 @@
      {
         kDebug(7011) << "mmap failed. (length = " << sycoca_size << ")";
 #endif
+#ifdef Q_OS_WIN
+        m_str = new QDataStream( m_database->readAll());
+        m_database->close();
+#else
         m_str = new QDataStream(m_database);
+#endif
         m_str->setVersion(QDataStream::Qt_3_1);
         sycoca_mmap = 0;
 #ifdef HAVE_MMAP
@@ -264,8 +273,10 @@
 {
     QDataStream* &m_str = KSycocaPrivate::_self->m_str;
    QIODevice *device = 0;
+#ifndef Q_OS_WIN
    if (m_str)
       device = m_str->device();
+#endif
 #ifdef HAVE_MMAP
    if (device && sycoca_mmap)
    {


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