Lockfree_Reader_Writer

Requirements

• Provide read and write interfaces to an underlying data structure.
• Access should be thread safe.
• Reads will be frequent while writes will be rare.
• Multiple threads should be able to read data in parallel and should not be blocked by other readers.
• Writers modify the data and hence writes cannot be concurrent.

Solutions

Global object and std::shared_ptr

Reader_Writer_pointer_globalObj.cpp

std::shared_ptr and temporary object

Reader_Writer_pointers_only.cpp

Test results

• Both solutions seem to work
• No issues pointed out by thread sanitizer