logd: wakeup on wrap or timeout
If a timeout is specified for the reader, then go to sleep
with the socket open. If the start time is about to get
pruned in the specified log buffers, then wakeup and dump
the logs; or wakeup on timeout, whichever comes first.
Bug: 25929746
Change-Id: I7d2421c2c5083b33747b84f74d9a560d3ba645df
diff --git a/logd/LogReader.cpp b/logd/LogReader.cpp
index 06135dd..c2d65b6 100644
--- a/logd/LogReader.cpp
+++ b/logd/LogReader.cpp
@@ -67,6 +67,14 @@
start.strptime(cp + sizeof(_start) - 1, "%s.%q");
}
+ uint64_t timeout = 0;
+ static const char _timeout[] = " timeout=";
+ cp = strstr(buffer, _timeout);
+ if (cp) {
+ timeout = atol(cp + sizeof(_timeout) - 1) * NS_PER_SEC +
+ log_time(CLOCK_REALTIME).nsec();
+ }
+
unsigned int logMask = -1;
static const char _logIds[] = " lids=";
cp = strstr(buffer, _logIds);
@@ -166,7 +174,7 @@
}
}
- FlushCommand command(*this, nonBlock, tail, logMask, pid, sequence);
+ FlushCommand command(*this, nonBlock, tail, logMask, pid, sequence, timeout);
command.runSocketCommand(cli);
return true;
}