posix android,Android Socket Posix 实现

Android Socket实现重用harmony项目

socket/serversocket.java --> socketImpl.java     (java.net)

socketimpl.java --> java/net/plainsocketimpl.java   --> Libcore Os IoBridge etc (libcore.io)

socketimpl.java --> java/nio/SocketChannelImpl.java --> Libcore Os IoBridge etc (libcore.io)

libcore OS --> libcore/io/Posix.java --> libcore_io_Posix.cpp --> linux posix api     (accept)

libcore IoBridge --> libcore/io/Posix.java --> libcore_io_Posix.cpp --> linux posix api     (sendto, recvfrom, etc)

Posix.java通过JNI (libcore_io_Posix.cpp)调用linux的posix API，例如accept, sendto, recvfrom等