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-rw-r--r--apt-pkg/contrib/mmap.cc6
1 files changed, 5 insertions, 1 deletions
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc
index 0ac202aef..fdeb344d5 100644
--- a/apt-pkg/contrib/mmap.cc
+++ b/apt-pkg/contrib/mmap.cc
@@ -1,6 +1,6 @@
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: mmap.cc,v 1.10 1998/11/23 07:03:08 jgg Exp $
+// $Id: mmap.cc,v 1.11 1999/02/05 02:26:13 jgg Exp $
/* ######################################################################
MMap Class - Provides 'real' mmap or a faked mmap using read().
@@ -106,9 +106,11 @@ bool MMap::Close(bool DoClose, bool DoSync)
not return till all IO is complete */
bool MMap::Sync()
{
+#ifdef _POSIX_SYNCHRONIZED_IO
if ((Flags & ReadOnly) != ReadOnly)
if (msync((char *)Base,iSize,MS_SYNC) != 0)
return _error->Error("msync","Unable to write mmap");
+#endif
return true;
}
/*}}}*/
@@ -117,9 +119,11 @@ bool MMap::Sync()
/* */
bool MMap::Sync(unsigned long Start,unsigned long Stop)
{
+#ifdef _POSIX_SYNCHRONIZED_IO
if ((Flags & ReadOnly) != ReadOnly)
if (msync((char *)Base+(int)(Start/PAGE_SIZE)*PAGE_SIZE,Stop - Start,MS_SYNC) != 0)
return _error->Error("msync","Unable to write mmap");
+#endif
return true;
}
/*}}}*/