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Implement "full_state" query parameter for /sync (#751)

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Closes #637.
This commit is contained in:
Alex Chen 2019-08-01 12:36:13 +08:00 • committed by GitHub
parent 0dcf0a7d64
commit 3578d77d25
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 117 additions and 29 deletions
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12
syncapi/sync/requestpool.go
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@ -65,8 +65,7 @@ func (rp *RequestPool) OnIncomingSyncRequest(req *http.Request, device *authtype
currPos := rp.notifier.CurrentPosition()
// If this is an initial sync or timeout=0 we return immediately
if syncReq.since == nil || syncReq.timeout == 0 {
if shouldReturnImmediately(syncReq) {
syncData, err = rp.currentSyncForUser(*syncReq, currPos)
if err != nil {
return httputil.LogThenError(req, err)
@ -135,7 +134,7 @@ func (rp *RequestPool) currentSyncForUser(req syncRequest, latestPos types.SyncP
if req.since == nil {
res, err = rp.db.CompleteSync(req.ctx, req.device.UserID, req.limit)
} else {
res, err = rp.db.IncrementalSync(req.ctx, req.device, *req.since, latestPos, req.limit)
res, err = rp.db.IncrementalSync(req.ctx, req.device, *req.since, latestPos, req.limit, req.wantFullState)
}
if err != nil {
@ -216,3 +215,10 @@ func (rp *RequestPool) appendAccountData(
return data, nil
}
// shouldReturnImmediately returns whether the /sync request is an initial sync,
// or timeout=0, or full_state=true, in any of the cases the request should
// return immediately.
func shouldReturnImmediately(syncReq *syncRequest) bool {
return syncReq.since == nil || syncReq.timeout == 0 || syncReq.wantFullState
}