You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
11 lines
667 B
11 lines
667 B
4 months ago
|
# 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.
|