MMap::~MMap()
{
if (!first) return;
if (addr) {
DEBUG ("unmapping file \"" + Entry::name + "\"");
#ifdef MRTRIX_WINDOWS
if (!UnmapViewOfFile ( (LPVOID) addr))
#else
if (munmap (addr, msize))
#endif
WARN ("error unmapping file \"" + Entry::name + "\": " + strerror (errno));
close (fd);
}
else {
if (readwrite) {
INFO ("writing back contents of mapped file \"" + Entry::name + "\"...");
File::OFStream out (Entry::name, std::ios::in | std::ios::out | std::ios::binary);
out.seekp (start, out.beg);
out.write ((char*) first, msize);
if (!out.good())
throw Exception ("error writing back contents of file \"" + Entry::name + "\": " + strerror(errno));
}
delete [] first;
}
}
void Default::unload (const Header& header)
{
if (mmaps.empty() && addresses.size()) {
assert (addresses[0].get());
if (writable) {
for (size_t n = 0; n < files.size(); n++) {
File::OFStream out (files[n].name, std::ios::out | std::ios::binary);
out.seekp (files[n].start, out.beg);
out.write ((char*) (addresses[0].get() + n*bytes_per_segment), bytes_per_segment);
if (!out.good())
throw Exception ("error writing back contents of file \"" + files[n].name + "\": " + strerror(errno));
}
}
}
else {
for (size_t n = 0; n < addresses.size(); ++n)
addresses[n].release();
mmaps.clear();
}
}
