diff options
Diffstat (limited to 'apt-pkg/contrib/mmap.cc')
| -rw-r--r-- | apt-pkg/contrib/mmap.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/apt-pkg/contrib/mmap.cc b/apt-pkg/contrib/mmap.cc index 1fb84b0af..a67ab3698 100644 --- a/apt-pkg/contrib/mmap.cc +++ b/apt-pkg/contrib/mmap.cc @@ -66,7 +66,7 @@ MMap::~MMap() bool MMap::Map(FileFd &Fd) { iSize = Fd.Size(); - + // Set the permissions. int Prot = PROT_READ; int Map = MAP_SHARED; @@ -97,6 +97,13 @@ bool MMap::Map(FileFd &Fd) { // The filesystem doesn't support this particular kind of mmap. // So we allocate a buffer and read the whole file into it. + if ((Flags & ReadOnly) == ReadOnly) + { + // for readonly, we don't need sync, so make it simple + Base = new unsigned char[iSize]; + return Fd.Read(Base, iSize); + } + // FIXME: Writing to compressed fd's ? int const dupped_fd = dup(Fd.Fd()); if (dupped_fd == -1) return _error->Errno("mmap", _("Couldn't duplicate file descriptor %i"), Fd.Fd()); |