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# async_safe logging
This library provides an async_safe implementation for formatting and writing log messages to logd.
Note that the liblog implementation connects a single socket to logd and uses a RWLock to manage
it among threads, whereas these functions connect to liblog for each log message. While it's
beneficial to have this lock-free and therefore async_safe mechanism to write to logd, connecting
a socket for each message does not scale well under load. It was also determined to be too
costly to connect a socket for each thread as some processes, such as system_server, have over 100
threads. Therefore, we maintain these two separate mechanisms.
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