diff options
Diffstat (limited to 'apt-pkg/contrib/mmap.cc')
| -rw-r--r-- | apt-pkg/contrib/mmap.cc | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc index 3e6ef3520..df7cd2a59 100644 --- a/apt-pkg/contrib/mmap.cc +++ b/apt-pkg/contrib/mmap.cc @@ -156,11 +156,10 @@ bool MMap::Close(bool DoSync) /* This is done in syncronous mode - the docs indicate that this will not return till all IO is complete */ bool MMap::Sync() -{ +{ if ((Flags & UnMapped) == UnMapped) return true; - -#ifdef _POSIX_SYNCHRONIZED_IO + if ((Flags & ReadOnly) != ReadOnly) { if (SyncToFd != NULL) @@ -170,11 +169,12 @@ bool MMap::Sync() } else { +#ifdef _POSIX_SYNCHRONIZED_IO if (msync((char *)Base, iSize, MS_SYNC) < 0) return _error->Errno("msync", _("Unable to synchronize mmap")); +#endif } } -#endif return true; } /*}}}*/ @@ -185,8 +185,7 @@ bool MMap::Sync(unsigned long Start,unsigned long Stop) { if ((Flags & UnMapped) == UnMapped) return true; - -#ifdef _POSIX_SYNCHRONIZED_IO + unsigned long long PSize = sysconf(_SC_PAGESIZE); if ((Flags & ReadOnly) != ReadOnly) { @@ -198,11 +197,12 @@ bool MMap::Sync(unsigned long Start,unsigned long Stop) } else { +#ifdef _POSIX_SYNCHRONIZED_IO if (msync((char *)Base+(unsigned long long)(Start/PSize)*PSize,Stop - Start,MS_SYNC) < 0) return _error->Errno("msync", _("Unable to synchronize mmap")); +#endif } } -#endif return true; } /*}}}*/ |