Implementation of event loop abstraction.

This patch adds "android/looper.h" which provides an

abstraction for event loops:
 - android/looper-qemu.c implements it on top of the QEMU main event loop.
 - android/looper-generic.c implements it on top of an IoLooper object.

The main idea is to move the UI-related code to use the abstraction
to handle timers and asynchronous (network) i/o.

NOTE: Code compiles but has not been heavily tested.

Change-Id: Ib6820c1b9a9950dc22449a332bc1b066a07af203

1 files changed, 6 insertions, 0 deletions

diff --git a/iolooper.h b/iolooper.h
index f051d07..0345774 100644
--- a/iolooper.h
+++ b/iolooper.h
@@ -16,6 +16,12 @@ void       iolooper_add_write( IoLooper*  iol, int  fd );
 void       iolooper_del_read( IoLooper*  iol, int  fd );
 void       iolooper_del_write( IoLooper*  iol, int  fd );
 
+enum {
+    IOLOOPER_READ = (1<<0),
+    IOLOOPER_WRITE = (1<<1),
+};
+void       iolooper_modify( IoLooper*  iol, int fd, int oldflags, int newflags);
+
 int        iolooper_poll( IoLooper*  iol );
 /* Wrapper around select()
  * Return: