diff options
Diffstat (limited to 'libutils/SystemClock.cpp')
| -rw-r--r-- | libutils/SystemClock.cpp | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/libutils/SystemClock.cpp b/libutils/SystemClock.cpp index ac8da88..413250f 100644 --- a/libutils/SystemClock.cpp +++ b/libutils/SystemClock.cpp @@ -119,22 +119,6 @@ int64_t elapsedRealtimeNano() static volatile int prevMethod; #endif -#if 0 - /* - * b/7100774 - * clock_gettime appears to have clock skews and can sometimes return - * backwards values. Disable its use until we find out what's wrong. - */ - result = clock_gettime(CLOCK_BOOTTIME, &ts); - if (result == 0) { - timestamp = seconds_to_nanoseconds(ts.tv_sec) + ts.tv_nsec; - checkTimeStamps(timestamp, &prevTimestamp, &prevMethod, - METHOD_CLOCK_GETTIME); - return timestamp; - } -#endif - - // CLOCK_BOOTTIME doesn't exist, fallback to /dev/alarm static int s_fd = -1; if (s_fd == -1) { @@ -153,6 +137,15 @@ int64_t elapsedRealtimeNano() return timestamp; } + // /dev/alarm doesn't exist, fallback to CLOCK_BOOTTIME + result = clock_gettime(CLOCK_BOOTTIME, &ts); + if (result == 0) { + timestamp = seconds_to_nanoseconds(ts.tv_sec) + ts.tv_nsec; + checkTimeStamps(timestamp, &prevTimestamp, &prevMethod, + METHOD_CLOCK_GETTIME); + return timestamp; + } + // XXX: there was an error, probably because the driver didn't // exist ... this should return // a real error, like an exception! |