[spp] [PATCH 4/5] controller: add max_secondary to config

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

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

The number of secondary processes is limited with MAX_SECONDARY defined
in `spp_common.py`, and it is used to show candidates of secondary ID
while launching secondary process. This patch is to add `max_secondary`
to make MAX_SECONDARY configurable after launching SPP CLI.

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>
---
 src/controller/commands/pri.py | 14 ++++++++++++--
 src/controller/shell.py        | 26 ++++++++++++++++++--------
 2 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/src/controller/commands/pri.py b/src/controller/commands/pri.py
index aa78cef..b455b2d 100644
--- a/src/controller/commands/pri.py
+++ b/src/controller/commands/pri.py
@@ -179,13 +179,23 @@ class SppPrimary(object):
                     candidates.append('{}'.format(pt))
 
             elif len(tokens) == 4 and tokens[1] == 'launch':
+                if 'max_secondary' in cli_config.keys():
+                    max_secondary = int(cli_config['max_secondary']['val'])
+                else:
+                    max_secondary = spp_common.MAX_SECONDARY
+
                 if tokens[2] in spp_common.SEC_TYPES:
                     candidates = [
-                            str(i+1) for i in range(spp_common.MAX_SECONDARY)]
+                            str(i+1) for i in range(max_secondary)]
 
             elif len(tokens) == 5 and tokens[1] == 'launch':
+                if 'max_secondary' in cli_config.keys():
+                    max_secondary = int(cli_config['max_secondary']['val'])
+                else:
+                    max_secondary = spp_common.MAX_SECONDARY
+
                 if (tokens[2] in spp_common.SEC_TYPES) and \
-                        (int(tokens[3])-1 in range(spp_common.MAX_SECONDARY)):
+                        (int(tokens[3])-1 in range(max_secondary)):
                     ptype = tokens[2]
                     sid = tokens[3]
 
diff --git a/src/controller/shell.py b/src/controller/shell.py
index e8b0a0e..7a192fb 100644
--- a/src/controller/shell.py
+++ b/src/controller/shell.py
@@ -24,19 +24,29 @@ class Shell(cmd.Cmd, object):
     """SPP command prompt."""
 
     # Default config, but changed via `config` command
+    # TODO(yasufum) move defaults to config file and include from.
     cli_config = {
-            'prompt': {
-                'val': 'spp > ', 'desc': 'Command prompt'},
-            'topo_size': {
-                'val': '60%', 'desc': 'Percentage or ratio of topo'},
+            'max_secondary': {
+                'val': spp_common.MAX_SECONDARY,
+                'desc': 'The maximum number of secondary processes'},
             'sec_mem': {
-                'val': '-m 512', 'desc': 'Mem size'},
+                'val': '-m 512',
+                'desc': 'Mem size'},
             'sec_base_lcore': {
-                'val': '1', 'desc': 'Shared lcore among secondaryes'},
+                'val': '1',
+                'desc': 'Shared lcore among secondaryes'},
             'sec_vf_nof_lcores': {
-                'val': '3', 'desc': 'Number of lcores for vf workers'},
+                'val': '3',
+                'desc': 'Number of lcores for vf workers'},
             'sec_vhost_cli': {
-                'val': '', 'desc': 'Vhost client mode'},
+                'val': '',
+                'desc': 'Vhost client mode'},
+            'prompt': {
+                'val': 'spp > ',
+                'desc': 'Command prompt'},
+            'topo_size': {
+                'val': '60%',
+                'desc': 'Percentage or ratio of topo'},
             }
 
     hist_file = os.path.expanduser('~/.spp_history')
-- 
2.7.4