diff options
Diffstat (limited to 'media/libstagefright/wifi-display/SNTPClient.h')
-rw-r--r-- | media/libstagefright/wifi-display/SNTPClient.h | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/media/libstagefright/wifi-display/SNTPClient.h b/media/libstagefright/wifi-display/SNTPClient.h deleted file mode 100644 index 967d1fc..0000000 --- a/media/libstagefright/wifi-display/SNTPClient.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright 2013, The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef SNTP_CLIENT_H_ - -#define SNTP_CLIENT_H_ - -#include <media/stagefright/foundation/ABase.h> -#include <utils/Errors.h> - -namespace android { - -// Implementation of the SNTP (Simple Network Time Protocol) -struct SNTPClient { - SNTPClient(); - - status_t requestTime(const char *host); - - // given a time obtained from ALooper::GetNowUs() - // return the number of us elapsed since Jan 1 1970 00:00:00 (UTC). - int64_t adjustTimeUs(int64_t timeUs) const; - -private: - enum { - kNTPPort = 123, - kNTPPacketSize = 48, - kNTPModeClient = 3, - kNTPVersion = 3, - kNTPTransmitTimeOffset = 40, - kNTPOriginateTimeOffset = 24, - kNTPReceiveTimeOffset = 32, - }; - - uint64_t mTimeReferenceNTP; - int64_t mTimeReferenceUs; - int64_t mRoundTripTimeNTP; - - static void writeTimeStamp(uint8_t *dst, uint64_t ntpTime); - static uint64_t readTimeStamp(const uint8_t *dst); - - static uint64_t getNowNTP(); - static uint64_t makeNTP(uint64_t deltaUs); - - DISALLOW_EVIL_CONSTRUCTORS(SNTPClient); -}; - -} // namespace android - -#endif // SNTP_CLIENT_H_ |