[spp] [PATCH 2/3] controller: change to wait for launching sec

[ogawa.yasufumi@lab.ntt.co.jp]

From: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>

SPP CLI updates list of secondaries after `pri launch` command
immediately. However, secondary is not launched when list is updated
yet.

This update is to add sleep() to wait 0.5 sec before updating. This 0.5
sec is best effort, but should be enough on almost of environment.

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>
---
 src/controller/commands/pri.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/controller/commands/pri.py b/src/controller/commands/pri.py
index 7043c2f..4124a12 100644
--- a/src/controller/commands/pri.py
+++ b/src/controller/commands/pri.py
@@ -4,6 +4,7 @@
 from .. import spp_common
 from ..shell_lib import common
 from ..spp_common import logger
+import time
 
 
 class SppPrimary(object):
@@ -19,6 +20,9 @@ class SppPrimary(object):
     # All of primary commands used for validation and completion.
     PRI_CMDS = ['status', 'launch', 'clear']
 
+    # Wait for launched secondary as best effort. 0.5 sec is enough.
+    WAIT_LAUNCH_SEC = 0.5
+
     def __init__(self, spp_ctl_cli):
         self.spp_ctl_cli = spp_ctl_cli
 
@@ -425,6 +429,9 @@ class SppPrimary(object):
         if res is not None:
             error_codes = self.spp_ctl_cli.rest_common_error_codes
             if res.status_code == 204:
+                # Wait for launch sec as best effort
+                time.sleep(self.WAIT_LAUNCH_SEC)
+
                 print('Send request to launch {ptype}:{sid}.'.format(
                     ptype=proc_type, sid=sec_id))
             elif res.status_code in error_codes:
-- 
2.17.1