ceph/src/rgw/rgw_multipart_meta_filter.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab ft=cpp
   3
   4 #include "svc_tier_rados.h"
   5
   6 using namespace std;
   7
   8 const std::string MP_META_SUFFIX = ".meta";
   9
  10 bool MultipartMetaFilter::filter(const string& name, string& key) {
  11   // the length of the suffix so we can skip past it
  12   static const size_t MP_META_SUFFIX_LEN = MP_META_SUFFIX.length();
  13
  14   size_t len = name.size();
  15
  16   // make sure there's room for suffix plus at least one more
  17   // character
  18   if (len <= MP_META_SUFFIX_LEN)
  19     return false;
  20
  21   size_t pos = name.find(MP_META_SUFFIX, len - MP_META_SUFFIX_LEN);
  22   if (pos == string::npos)
  23     return false;
  24
  25   pos = name.rfind('.', pos - 1);
  26   if (pos == string::npos)
  27     return false;
  28
  29   key = name.substr(0, pos);
  30
  31   return true;
  32 }