update logging
fix typo
add http client counter for debugging and statistics
add atomic counter, for debugging and statistics
update log interface
update logging
update logging
update logging
fix issue: incorrect definition of std::map key comparator
fix issue: the logic of persistence verification is incorrect
update logging location, make it available for both persistent connection and non-persistent connection
update logging location
update logging for http client caching
fix crash issue: pcookie.tanx.com will lead to DNS resolving exception thrown, then program is forcibly aborted
add generic socket implementation
update common header
fix compile error
update socket's interface
improve socket class
add interface to socket