| # 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. |
