From 4ecbf7407c19b59fc136c334f9386c53db453930 Mon Sep 17 00:00:00 2001
From: zecke <zecke>
Date: Tue, 10 Dec 2002 17:01:18 +0000
Subject: get in sync with HEAD again

-OPimBase was added to be used as a default struct inside OPimResolver
and to work with DSOs
-TodoListXML backend now uses mmap and madvise to load data
-OContact added/changed rtti
-OTodo added changed rtti
OPimAccess* added stuff necessary for the Resolver and a 'state'/'hint'
on how to load data
OPimResolver which resolves uid + services to Records, rtti to QCOPChannels
 loads arbitary Service backends ( will work with DSOs soon )
-OPimMainWindow added some setDocument scripting possibility and
 internal marshalling and demarshalling of Records
-OPimRecord added loadDataFromm and saveDataTo for marshalling purposes
much more :)
---
(limited to 'libopie2/opiepim/backend')

diff --git a/libopie2/opiepim/backend/opimaccessbackend.h b/libopie2/opiepim/backend/opimaccessbackend.h
index 4f00bc9..e268f4f 100644
--- a/libopie2/opiepim/backend/opimaccessbackend.h
+++ b/libopie2/opiepim/backend/opimaccessbackend.h
@@ -19,7 +19,9 @@ template <class T = OPimRecord>
 class OPimAccessBackend {
 public:
     typedef OTemplateBase<T> Frontend;
-    OPimAccessBackend();
+
+    /** The access hint from the frontend */
+    OPimAccessBackend(int access = 0);
     virtual ~OPimAccessBackend();
 
     /**
@@ -88,6 +90,7 @@ public:
      */
     void setReadAhead( uint count );
 protected:
+    int access()const;
     void cache( const T& t )const;
 
     /**
@@ -98,13 +101,18 @@ protected:
     uint readAhead()const;
 
 private:
+    class Private;
+    Private* d;
     Frontend* m_front;
     uint m_read;
+    int m_acc;
 
 };
 
 template <class T>
-OPimAccessBackend<T>::OPimAccessBackend() {
+OPimAccessBackend<T>::OPimAccessBackend(int acc)
+    : m_acc( acc )
+{
     m_front = 0l;
 }
 template <class T>
@@ -138,4 +146,8 @@ template <class T>
 uint OPimAccessBackend<T>::readAhead()const {
     return m_read;
 }
+template <class T>
+int OPimAccessBackend<T>::access()const {
+    return m_acc;
+}
 #endif
diff --git a/libopie2/opiepim/backend/otodoaccessxml.cpp b/libopie2/opiepim/backend/otodoaccessxml.cpp
index b2dfe80..21f93a0 100644
--- a/libopie2/opiepim/backend/otodoaccessxml.cpp
+++ b/libopie2/opiepim/backend/otodoaccessxml.cpp
@@ -1,3 +1,13 @@
+#include <errno.h>
+#include <fcntl.h>
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <unistd.h>
+
+
 #include <qfile.h>
 #include <qvector.h>
 
@@ -52,20 +62,36 @@ bool OTodoAccessXML::load() {
 
     // here the custom XML parser from TT it's GPL
     // but we want to push OpiePIM... to TT.....
-    QFile f(m_file );
-    if (!f.open(IO_ReadOnly) )
+    // mmap part from zecke :)
+    int fd = ::open( QFile::encodeName(m_file).data(), O_RDONLY );
+    struct stat attribut;
+    if ( fd < 0 ) return false;
+
+    if ( fstat(fd, &attribut ) == -1 ) {
+        ::close( fd );
         return false;
+    }
+    void* map_addr = ::mmap(NULL,  attribut.st_size, PROT_READ, MAP_SHARED, fd, 0 );
+    if ( map_addr == ( (caddr_t)-1) ) {
+        ::close(fd );
+        return false;
+    }
+    /* advise the kernel who we want to read it */
+    ::madvise( map_addr,  attribut.st_size,  MADV_SEQUENTIAL );
+    /* we do not the file any more */
+    ::close( fd );
 
-    QByteArray ba = f.readAll();
-    f.close();
-    char* dt = ba.data();
-    int len = ba.size();
+    char* dt = (char*)map_addr;
+    int len = attribut.st_size;
     int i = 0;
     char *point;
     const char* collectionString = "<Task ";
+    int strLen = strlen(collectionString);
     while ( dt+i != 0 && ( point = strstr( dt+i, collectionString ) ) != 0l ) {
         i = point -dt;
-        i+= strlen(collectionString);
+        i+= strLen;
+        qWarning("Found a start at %d %d", i,  (point-dt) );
+
         OTodo ev;
         m_year = m_month = m_day = 0;
 
@@ -120,6 +146,7 @@ bool OTodoAccessXML::load() {
         /*
          * now add it
          */
+        qWarning("End at %d", i );
         if (m_events.contains( ev.uid() ) || ev.uid() == 0) {
             ev.setUid( 1 );
             m_changed = true;
@@ -131,6 +158,8 @@ bool OTodoAccessXML::load() {
         m_year = m_month = m_day = -1;
     }
 
+    munmap(map_addr, attribut.st_size );
+
     qWarning("counts %d records loaded!", m_events.count() );
     return true;
 }
--
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