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Save last-known server time offset.

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This commit is contained in:
Greyson Parrelli
2023-07-06 12:21:31 -04:00
committed by Clark Chen
parent 8372c699f7
commit ebaa445bee
7 changed files with 57 additions and 8 deletions
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29
app/src/main/java/org/thoughtcrime/securesms/keyvalue/MiscellaneousValues.java
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@@ -39,6 +39,8 @@ public final class MiscellaneousValues extends SignalStoreValues {
private static final String KEYBOARD_LANDSCAPE_HEIGHT = "misc.keyboard.landscape_height";
private static final String KEYBOARD_PORTRAIT_HEIGHT = "misc.keyboard.protrait_height";
private static final String LAST_CONSISTENCY_CHECK_TIME = "misc.last_consistency_check_time";
private static final String SERVER_TIME_OFFSET = "misc.server_time_offset";
private static final String LAST_SERVER_TIME_OFFSET_UPDATE = "misc.last_server_time_offset_update";
MiscellaneousValues(@NonNull KeyValueStore store) {
super(store);
@@ -326,4 +328,31 @@ public final class MiscellaneousValues extends SignalStoreValues {
public void setLastConsistencyCheckTime(long time) {
putLong(LAST_CONSISTENCY_CHECK_TIME, time);
}
/**
* Sets the last-known server time.
*/
public void setLastKnownServerTime(long serverTime, long currentTime) {
getStore()
.beginWrite()
.putLong(SERVER_TIME_OFFSET, currentTime - serverTime)
.putLong(LAST_SERVER_TIME_OFFSET_UPDATE, System.currentTimeMillis())
.apply();
}
/**
* The last-known offset between our local clock and the server. To get an estimate of the server time, take your current time and subtract this offset. e.g.
*
* estimatedServerTime = System.currentTimeMillis() - SignalStore.misc().getLastKnownServerTimeOffset()
*/
public long getLastKnownServerTimeOffset() {
return getLong(SERVER_TIME_OFFSET, 0);
}
/**
* The last time (using our local clock) we updated the server time offset returned by {@link #getLastKnownServerTimeOffset()}}.
*/
public long getLastKnownServerTimeOffsetUpdateTime() {
return getLong(LAST_SERVER_TIME_OFFSET_UPDATE, 0);
}
}