platform_system_core/logd
Mark Salyzyn fbf96b55d9 logd: KISS & fix preserve a day
(cherry pick from commit 5921276a16)

Code in 833a9b1e38 was borken,
simpler approach is to simply check last entry (to save a
syscall) minus EXPIRE_HOUR_THRESHOLD. This does make longer logs
less likely to call upon the spam detection than the algorithm
being replaced, but sadly we ended up with a log entry in the
future at the beginning of the logs confounding the previous
algorithm.

Bug: 21555259
Change-Id: I04fad67e95c8496521dbabb73b5f32c19d6a16c2
2015-06-01 14:27:02 -07:00
..
tests Remove LOCAL_ADDITIONAL_DEPENDENCIES in cases where it's not needed. 2015-04-02 14:31:07 -07:00
Android.mk logd: Add klogd 2015-05-13 09:22:45 -07:00
CommandListener.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
CommandListener.h logd: add reinit command 2015-03-12 12:24:47 -07:00
event.logtags logd: annotate worst-UID pruned entries 2015-04-10 15:45:08 -07:00
FlushCommand.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
FlushCommand.h logd: replace internal CLOCK_MONOTONIC use with sequence numbers 2015-03-18 12:43:23 -07:00
libaudit.c Revert "libaudit: limit to 5 selinux denials per sec" 2015-05-11 15:43:25 -07:00
libaudit.h logd: throttle SELinux denials to 20/sec 2014-11-19 13:35:36 -08:00
LogAudit.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogAudit.h logd: auditd remove logDmesg method 2014-12-05 20:56:44 +00:00
LogBuffer.cpp logd: KISS & fix preserve a day 2015-06-01 14:27:02 -07:00
LogBuffer.h logd: improve details on chatty records 2015-04-30 15:25:12 -07:00
LogBufferElement.cpp logd: Add TID statistics 2015-05-13 09:23:01 -07:00
LogBufferElement.h logd: worst-UID only to preserve a day 2015-05-20 10:03:11 -07:00
LogCommand.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogCommand.h logd: institute getGroups for socket credentials 2014-02-28 13:48:33 -08:00
LogKlog.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogKlog.h logd: Add klogd 2015-05-13 09:22:45 -07:00
LogListener.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogListener.h logd: initial checkin. 2014-02-26 09:52:35 -08:00
LogReader.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogReader.h logd: libsysutils: logd startup outside init environment 2014-04-17 16:14:24 +00:00
LogStatistics.cpp logd: Add TID statistics 2015-05-13 09:23:01 -07:00
LogStatistics.h logd: Add TID statistics 2015-05-13 09:23:01 -07:00
LogTimes.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogTimes.h logd: replace internal CLOCK_MONOTONIC use with sequence numbers 2015-03-18 12:43:23 -07:00
LogWhiteBlackList.cpp logd: Cleanup 2015-05-13 09:22:56 -07:00
LogWhiteBlackList.h logd: optimize statistics 2015-03-20 12:31:23 -07:00
main.cpp logd: Add klogd 2015-05-13 09:22:45 -07:00
README.auditd logd: selinux auditd initial commit 2014-04-07 10:51:00 -07:00
README.property logd: Add klogd 2015-05-13 09:22:45 -07:00

The properties that logd responds to are:

name                       type default  description
logd.auditd                 bool  true   Enable selinux audit daemon
logd.auditd.dmesg           bool  true   selinux audit messages duplicated and
                                         sent on to dmesg log
logd.klogd                  bool depends Enable klogd daemon
logd.statistics             bool depends Enable logcat -S statistics.
ro.config.low_ram           bool  false  if true, logd.statistics & logd.klogd
                                         default false
ro.build.type               string       if user, logd.statistics & logd.klogd
                                         default false
persist.logd.size          number 256K   default size of the buffer for all
                                         log ids at initial startup, at runtime
                                         use: logcat -b all -G <value>
persist.logd.size.main     number 256K   Size of the buffer for the main log
persist.logd.size.system   number 256K   Size of the buffer for the system log
persist.logd.size.radio    number 256K   Size of the buffer for the radio log
persist.logd.size.event    number 256K   Size of the buffer for the event log
persist.logd.size.crash    number 256K   Size of the buffer for the crash log

NB:
- number support multipliers (K or M) for convenience. Range is limited
  to between 64K and 256M for log buffer sizes. Individual logs override the
  global default.