Method contains

src/common/resources.cpp:1379–1396

bool Resources::Resource_::contains(const Resource_& that) const
{
  // Both Resource_ objects should have the same sharedness.
  if (isShared() != that.isShared()) {
    return false;
  }

  // Assuming the wrapped Resource objects are equal, the 'contains'
  // relationship is determined by the relationship of the counters
  // for shared resources.
  if (isShared()) {
    return sharedCount.get() >= that.sharedCount.get() &&
           resource == that.resource;
  }

  // For non-shared resources just compare the protobufs.
  return mesos::contains(resource, that.resource);
}


Resources::Resource_& Resources::Resource_::operator+=(const Resource_& that)