android核心机制之Zygote启动流程(2)

                // want to run in that state in this process.  The driver set our 
                // priority already (though not our scheduling class), so bounce 
                // it back to the default before invoking the transaction. 
                setpriority(PRIO_PROCESS, mMyThreadId, ANDROID_PRIORITY_NORMAL); 
            } 
        } else { 
            if (curPrio >= ANDROID_PRIORITY_BACKGROUND) { 
                // We want to use the inherited priority from the caller. 
                // Ensure this thread is in the background scheduling class, 
                // since the driver won't modify scheduling classes for us. 
                // The scheduling group is reset to default by the caller 
                // once this method returns after the transaction is complete. 
                androidSetThreadSchedulingGroup(mMyThreadId, 
                                                ANDROID_TGROUP_BG_NONINTERACT); 
            } 
        } 
 
        //LOGI(">>>> TRANSACT from pid %d uid %d\n", mCallingPid, mCallingUid); 
         
        Parcel reply; 
        IF_LOG_TRANSACTIONS() { 
            TextOutput::Bundle _b(alog); 
            alog << "BR_TRANSACTION thr " << (void*)pthread_self() 
                << " / obj " << tr.target.ptr << " / code "