增加HTTP业务层、解析层Suspend接口定义。

common/include/tfe_stream.h

@@ -85,6 +85,8 @@ typedef void stream_close_cb_t(const struct tfe_stream* stream,  unsigned int th
 
 void tfe_stream_detach(const struct tfe_stream* stream);
 int tfe_stream_preempt(const struct tfe_stream* stream);
+struct promise * tfe_stream_suspend(const struct tfe_stream * stream);
+void tfe_stream_resume(struct promisc * promisc);
 
 int stream_shutdown(const struct tfe_stream* stream);//close both sides of the stream.
 int stream_shutdown_dir(const struct tfe_stream* stream, enum tfe_conn_dir dir);