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| author | Tom Ritter <tom@mozilla.com> | 2018-02-20 12:18:30 -0600 |
|---|---|---|
| committer | wolfbeast <mcwerewolf@gmail.com> | 2018-03-14 11:27:26 +0100 |
| commit | a32b7f7c4e4e31669e0787e6321d74e4db71e514 (patch) | |
| tree | e83acb2eb895162f010e7ff9ee2d39548c4d90b4 /js | |
| parent | bd819cc43653220abdbfe040ba5c721e9861241c (diff) | |
| download | UXP-a32b7f7c4e4e31669e0787e6321d74e4db71e514.tar UXP-a32b7f7c4e4e31669e0787e6321d74e4db71e514.tar.gz UXP-a32b7f7c4e4e31669e0787e6321d74e4db71e514.tar.lz UXP-a32b7f7c4e4e31669e0787e6321d74e4db71e514.tar.xz UXP-a32b7f7c4e4e31669e0787e6321d74e4db71e514.zip | |
Bug 1430173 - Reduce the precision of all explicit clocks to 2ms. r=baku, a=RyanVM
Backport to ESR where we don't have the ResistFingerprinting component.
MozReview-Commit-ID: 9bjycHjR3SF
--HG--
extra : transplant_source : %EA%03%21%0A%E9%3F%8E%CD%7C%D79f%96%85%96%00%5D%7F%95X
Diffstat (limited to 'js')
| -rwxr-xr-x[-rw-r--r--] | js/src/jsdate.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/js/src/jsdate.cpp b/js/src/jsdate.cpp index d73fb93d2..ccaeda2a3 100644..100755 --- a/js/src/jsdate.cpp +++ b/js/src/jsdate.cpp @@ -1232,7 +1232,10 @@ date_parse(JSContext* cx, unsigned argc, Value* vp) static ClippedTime NowAsMillis() { - return TimeClip(static_cast<double>(PRMJ_Now()) / PRMJ_USEC_PER_MSEC); + const double maxResolutionMs = 2; + double timestamp = static_cast<double>(PRMJ_Now()) / PRMJ_USEC_PER_MSEC; + timestamp = floor(timestamp / maxResolutionMs) * maxResolutionMs; + return TimeClip(timestamp); } bool |