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9 commits

Author SHA1 Message Date
Mark Salyzyn
7718778793 logd: Cleanup 
- Android Coding Standard for Constructors
- Side effects NONE

Change-Id: I2cda9dd73f3ac3ab58f394015cb810820093d47b
 2015-05-12 15:51:46 -07:00
Mark Salyzyn
e3aeeeeccc logd: syscall optimization 
- prset(PR_SET_NAME) call once
- No need to call getuid(), should be AID_LOGD

Change-Id: I4dde0b178bc84e711b355cd7677b0dbf905a0634
 2015-04-01 19:41:59 +00:00
Mark Salyzyn
f7c0f75275 logd: replace internal CLOCK_MONOTONIC use with sequence numbers 
- switch to simpler and faster internal sequence number, drops
  a syscall overhead on 32-bit platforms.
- add ability to break-out of flushTo loop with filter return -1
  allowing in reduction in reader overhead.

Change-Id: Ic5cb2b9afa4d9470153971fc9197b07279e2b79d
 2015-03-18 12:43:23 -07:00
Mark Salyzyn
f669acb018 logd: in nonblocking read, sched_yield() synchronization 
- sched_yield and lock synchronization in reader thread
  startup to give writer thread a chance to catch up

Bug: 17512203
Change-Id: I43cf0b4e2829b22b3ab4e537fa95ce13c76a869c
 2014-09-29 17:40:10 +00:00
Mark Salyzyn
8daa9af02d logd: add thread setname 
- permits easier determination of logd thread at
  fault in a stack trace from debuggerd.

Bug: 14275676
Change-Id: Iac2c523147e2bcce34ab7ddcecd02582c5fa7cc0
 2014-04-29 00:37:37 +00:00
Mark Salyzyn
dfc47e8685 logd: libsysutils: logd startup outside init environment 
Change-Id: I3426b6c3eebdd0c8258e966dcaaaa2825d7a23d1
 2014-04-17 16:14:24 +00:00
Mark Salyzyn
a1c60cf80d logd: Find log time for arbitrary time to tail 
- prototype to evaluate the increase in complexity or
  performance impact.

Change-Id: I4e815d74c023092fbb75055d260f75de57ad6522
 2014-03-14 10:24:19 -07:00
Mark Salyzyn
fa3716b250 logd: liblog: logcat: Arbitrary time to tail 
Change-Id: I10e8d92c933e31ee11e78d2d1114261a30c4be0e
 2014-03-14 10:23:51 -07:00
Mark Salyzyn
0175b0747a logd: initial checkin. 
* Create a new userspace log daemon for handling logging messages.

Original-Change-Id: I75267df16359684490121e6c31cca48614d79856
Signed-off-by: Nick Kralevich <nnk@google.com>

* Merge conflicts
* rename new syslog daemon to logd to prevent confusion with bionic syslog
* replace racy getGroups call with KISS call to client->getGid()
* Timestamps are filed at logging source
* insert entries into list in timestamp order
* Added LogTimeEntry tail filtration handling
* Added region locking around LogWriter list
* separate threads for each writer
* /dev/socket/logd* permissions

Signed-off-by: Mark Salyzyn <salyzyn@google.com>

(cherry picked from commit 3e76e0a497)

Author: Nick Kralevich <nnk@google.com>
Change-Id: Ice88b1412d8f9daa7f9119b2b5aaf684a5e28098
 2014-02-26 09:52:35 -08:00