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| author | Michael Vogt <michael.vogt@ubuntu.com> | 2012-08-06 15:53:50 +0200 |
|---|---|---|
| committer | Michael Vogt <michael.vogt@ubuntu.com> | 2012-08-06 15:53:50 +0200 |
| commit | 700616ab8792227768cd73aa28eb69b8010ac90a (patch) | |
| tree | 9630cb40d10e13708d724f49cc14787cc86a9a94 /apt-pkg/contrib/mmap.cc | |
| parent | b9c917bd62e7b1eb227d4f3a7321559ddb96e494 (diff) | |
| parent | 4caf8231804dfce5a1a58a56dfe4df21a31be363 (diff) | |
merged from david
Diffstat (limited to 'apt-pkg/contrib/mmap.cc')
| -rw-r--r-- | apt-pkg/contrib/mmap.cc | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc index 3e6ef3520..a176da636 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; } /*}}}*/ @@ -185,9 +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) { if (SyncToFd != 0) @@ -198,11 +196,13 @@ bool MMap::Sync(unsigned long Start,unsigned long Stop) } else { +#ifdef _POSIX_SYNCHRONIZED_IO + unsigned long long const PSize = sysconf(_SC_PAGESIZE); 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; } /*}}}*/ |