[5/6] incubator-mynewt-newtmgr git commit: nmxact - Add ble_loop example.

[cc...@apache.org]

nmxact - Add ble_loop example.


Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/commit/2f603eac
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/tree/2f603eac
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/diff/2f603eac

Branch: refs/heads/master
Commit: 2f603eac7ab7ef428fe8b83a3050c6ef8007ef2c
Parents: 2d55058
Author: Christopher Collins <cc...@apache.org>
Authored: Tue Apr 4 18:08:33 2017 -0700
Committer: Christopher Collins <cc...@apache.org>
Committed: Tue Apr 4 18:10:25 2017 -0700

----------------------------------------------------------------------
 nmxact/build-examples.sh            |   1 +
 nmxact/example/ble_loop/ble_loop.go | 104 +++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/blob/2f603eac/nmxact/build-examples.sh
----------------------------------------------------------------------
diff --git a/nmxact/build-examples.sh b/nmxact/build-examples.sh
index 7898948..a751f5f 100755
--- a/nmxact/build-examples.sh
+++ b/nmxact/build-examples.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 read -r -d '' exdirs <<-'EOS'
+    ble_loop
     ble_plain
     serial_plain
 EOS

http://git-wip-us.apache.org/repos/asf/incubator-mynewt-newtmgr/blob/2f603eac/nmxact/example/ble_loop/ble_loop.go
----------------------------------------------------------------------
diff --git a/nmxact/example/ble_loop/ble_loop.go b/nmxact/example/ble_loop/ble_loop.go
new file mode 100644
index 0000000..c76b11c
--- /dev/null
+++ b/nmxact/example/ble_loop/ble_loop.go
@@ -0,0 +1,104 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"mynewt.apache.org/newtmgr/nmxact/bledefs"
+	"mynewt.apache.org/newtmgr/nmxact/nmble"
+	"mynewt.apache.org/newtmgr/nmxact/sesn"
+	"mynewt.apache.org/newtmgr/nmxact/xact"
+)
+
+func main() {
+	// Initialize the BLE transport.
+	params := nmble.NewXportCfg()
+	params.SockPath = "/tmp/blehostd-uds"
+	params.BlehostdPath = "blehostd.elf"
+	params.DevPath = "/dev/cu.usbmodem142111"
+
+	x, err := nmble.NewBleXport(params)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error creating BLE transport: %s\n",
+			err.Error())
+		os.Exit(1)
+	}
+
+	// Start the BLE transport.
+	if err := x.Start(); err != nil {
+		fmt.Fprintf(os.Stderr, "error starting BLE transport: %s\n",
+			err.Error())
+		os.Exit(1)
+	}
+	defer x.Stop()
+
+	// Prepare a BLE session:
+	//     * Plain NMP (not tunnelled over OIC).
+	//     * We use a random address.
+	//     * Peer has name "nimble-bleprph".
+	sc := sesn.NewSesnCfg()
+	sc.MgmtProto = sesn.MGMT_PROTO_NMP
+	sc.Ble.OwnAddrType = bledefs.BLE_ADDR_TYPE_RANDOM
+	sc.Ble.PeerSpec = sesn.BlePeerSpecName("nimble-bleprph")
+
+	s, err := x.BuildSesn(sc)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "error creating BLE session: %s\n", err.Error())
+		os.Exit(1)
+	}
+
+	// Repeatedly:
+	//     * Connect to peer if unconnected.
+	//     * Send an echo command to peer.
+	//
+	// If blehostd crashes or the controller is unplugged, nmxact should
+	// recover on the next connect attempt.
+	for {
+		if !s.IsOpen() {
+			// Connect to the peer (open the session).
+			if err := s.Open(); err != nil {
+				fmt.Fprintf(os.Stderr, "error starting BLE session: %s\n",
+					err.Error())
+				continue
+			}
+		}
+
+		// Send an echo command to the peer.
+		c := xact.NewEchoCmd()
+		c.Payload = "hello"
+
+		res, err := c.Run(s)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "error executing echo command: %s\n",
+				err.Error())
+			continue
+		}
+
+		if res.Status() != 0 {
+			fmt.Printf("Peer responded negatively to echo command; status=%d\n",
+				res.Status())
+		}
+
+		eres := res.(*xact.EchoResult)
+		fmt.Printf("Peer echoed back: %s\n", eres.Rsp.Payload)
+	}
+}