摘要：Introduction1.Statistics Macro"ANDROID_INSTRUMENT"2.Classes for statisticsa.TimeCounterb.TimeCounterAuto3. method for statisticsa. counting the time used for a single function.b. counting the total time used by a kind of Timer.TimerCounter1.TimerCounter type.One counter type stands for one 阅读全文

摘要：1. use given .so a. make lib dir under the app's dir b.copy your libXX.so into the dir. c.modify the Android.mkadd "COCAL_JNI_SHARED_LIBRARIES :=libXX"[cpp] view plaincopyLOCAL_PATH:=$(callmy-dir)include$(CLEAR_VARS)LOCAL_MODULE_TAGS:=optionalLOCAL_SRC_FILES:=$(callall-java-files-under 阅读全文

摘要：1.SkImage decoded procedure SkImageDecoder.DecodeMemory/SkImageDecoder.DecodeFile SkImageDecoder.DecodeStream SkImageDecoder.decode SkImageDecoder.onDecode SkJPEGImageDecoder.onDecode(SkImageDecoder_libjpeg.cpp) SkImageDecoder.return_flase(error) 2.factory mode a.client use abs product in it's c 阅读全文

摘要：steps 1.FrameLoader.cpp didFirstLayout 3.FrameLoaderClientAndroid.cpp dispatchDidFirstLayout 3.WebViewCore.cpp didFirstLayout(); 4.WebViewCore.java// will also callsetupViewport() didFirstLayout(); 5.BrowserFrame.java didFirstLayout(); 6.WebViewCore.java contentDraw(); 7.WebViewCore.java webkitDrawL 阅读全文

摘要：socket API原本是为网络通讯设计的，但后来在socket的框架上发展出一种IPC机制，就是UNIX Domain Socket。虽然网络socket也可用于同一台主机的进程间通讯（通过loopback地址127.0.0.1），但是UNIX Domain Socket用于IPC更有效率：不需要经过网络协议栈，不需要打包拆包、计算校验和、维护序号和应答等，只是将应用层数据从一个进程拷贝到另一个进程。 这是因为，IPC机制本质上是可靠的通讯，而网络协议是为不可靠的通讯设计的。UNIX Domain Socket也提供面向流和面向数据包两种API接口，类似于TCP和UDP，但是面向消息的UNI 阅读全文

摘要：Android use UNIX Domain Socket for get debug log.usually name "tombstone_0X" and so on in /data/log/logcat/1. ServerFirst , it has a socket server. it's a executable program.The code was in "system/core/debuggerd/debuggerd.c"in the main, it open a IPC socket[cpp] view plainco 阅读全文