diff options
Diffstat (limited to 'include/media/stagefright/foundation/ALooper.h')
| -rw-r--r-- | include/media/stagefright/foundation/ALooper.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/media/stagefright/foundation/ALooper.h b/include/media/stagefright/foundation/ALooper.h index 150cdba..09c469b 100644 --- a/include/media/stagefright/foundation/ALooper.h +++ b/include/media/stagefright/foundation/ALooper.h @@ -30,6 +30,7 @@ namespace android { struct AHandler; struct AMessage; +struct AReplyToken; struct ALooper : public RefBase { typedef int32_t event_id; @@ -79,7 +80,27 @@ private: sp<LooperThread> mThread; bool mRunningLocally; + // use a separate lock for reply handling, as it is always on another thread + // use a central lock, however, to avoid creating a mutex for each reply + Mutex mRepliesLock; + Condition mRepliesCondition; + + // START --- methods used only by AMessage + + // posts a message on this looper with the given timeout void post(const sp<AMessage> &msg, int64_t delayUs); + + // creates a reply token to be used with this looper + sp<AReplyToken> createReplyToken(); + // waits for a response for the reply token. If status is OK, the response + // is stored into the supplied variable. Otherwise, it is unchanged. + status_t awaitResponse(const sp<AReplyToken> &replyToken, sp<AMessage> *response); + // posts a reply for a reply token. If the reply could be successfully posted, + // it returns OK. Otherwise, it returns an error value. + status_t postReply(const sp<AReplyToken> &replyToken, const sp<AMessage> &msg); + + // END --- methods used only by AMessage + bool loop(); DISALLOW_EVIL_CONSTRUCTORS(ALooper); |