[spp] [PATCH] cli: fix TODOs in pri command

[yasufum.o@gmail.com]

From: Yasufumi Ogawa <yasufum.o@gmail.com>

This update is to fix following TODOs in `commands/pri.py`. For second
one, add util method print_compl_warinig().

* Not accept if given sec ID is already used.

* Warn if enough number of empty lcores cannot be assinged.

Signed-off-by: Yasufumi Ogawa <yasufum.o@gmail.com>
---
 src/cli/commands/pri.py     | 16 +++++++++-------
 src/cli/shell_lib/common.py | 11 +++++++++++
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/src/cli/commands/pri.py b/src/cli/commands/pri.py
index eb4d7d4..da5eca6 100644
--- a/src/cli/commands/pri.py
+++ b/src/cli/commands/pri.py
@@ -238,9 +238,6 @@ class SppPrimary(object):
             if (tokens[2] in spp_common.SEC_TYPES) and \
                     (int(tokens[3])-1 in range(max_secondary)):
                 ptype = tokens[2]
-
-                # TODO(yasufum) Not accept if given sec ID is already
-                # used.
                 sid = tokens[3]
 
                 # Option of secondary ID is different between spp_nfv
@@ -290,21 +287,26 @@ class SppPrimary(object):
                 empty_lcores = self._get_empty_lcores()
                 empty_lcores = sum(empty_lcores, [])
 
+                # Check if enough number of lcores available.
+                if len(empty_lcores) < nof_slaves:
+                    common.print_compl_warinig(
+                        'No available lcores remained!')
+                    return []
+
                 if 'sec_m_lcore' in cli_config.keys():
                     master_lcore = cli_config['sec_m_lcore']['val']
                 else:
                     logger.error('Config "sec_m_lcore" is not defined!')
                     has_invalid_param = True
 
-                # Decide lcore option based on configured number of
-                # lcores.
+                # Decide lcore option based on configured number of lcores.
                 slave_lcores = []
                 for l in empty_lcores:
                     # Master lcore ID should be smaller than slaves.
                     if l > int(master_lcore):
                         slave_lcores.append(str(l))
-                    # TODO(yasufum) warn if enough number of empty
-                    # lcores cannot be assinged.
+
+                    # Check if required number of lcores are found.
                     if len(slave_lcores) > (nof_slaves - 1):
                         break
 
diff --git a/src/cli/shell_lib/common.py b/src/cli/shell_lib/common.py
index ad34e56..b936348 100644
--- a/src/cli/shell_lib/common.py
+++ b/src/cli/shell_lib/common.py
@@ -282,3 +282,14 @@ def validate_config_val(key, val):
 
     # No need to check others.
     return True
+
+
+def print_compl_warinig(msg):
+    """Print warning message for completion.
+
+    Printing message while complition disturbs user's input, but it should be
+    printed in some error cases. This method is just for printing warning
+    message simply.
+    """
+
+    print('// WARN: {msg}'.format(msg=msg))
-- 
2.17.1