Module: xenomai-3
Branch: next
Commit: f1edd325840fad326cf2d4f120deba4ef671a254
URL:
http://git.xenomai.org/?p=xenomai-3.git;a=commit;h=f1edd325840fad326cf2d4f120deba4ef671a254
Author: Philippe Gerum <r...@xenomai.org>
Date: Tue May 12 17:10:44 2015 +0200
boilerplate/setup: add tuning step in setup process
A ->tune() handler is added to the setup descriptor, which will be
fired from xenomai_init() before the option parsing step runs.
Both configuration and runtime tunables may be assigned in the
->tune() handler. Their values can be overwritten by the command line
options passed to the application program.
---
include/boilerplate/setup.h | 1 +
lib/boilerplate/setup.c | 17 +++++++++++++----
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/include/boilerplate/setup.h b/include/boilerplate/setup.h
index f1ff7b1..40449fd 100644
--- a/include/boilerplate/setup.h
+++ b/include/boilerplate/setup.h
@@ -36,6 +36,7 @@ struct option;
struct setup_descriptor {
const char *name;
int (*init)(void);
+ int (*tune)(void);
const struct option *options;
int (*parse_option)(int optnum, const char *optarg);
void (*help)(void);
diff --git a/lib/boilerplate/setup.c b/lib/boilerplate/setup.c
index 24b2550..96a3a06 100644
--- a/lib/boilerplate/setup.c
+++ b/lib/boilerplate/setup.c
@@ -498,10 +498,21 @@ void xenomai_init(int *argcp, char *const **argvp)
/*
* Now that we have bootstrapped the core, we may call the
- * setup handlers for parsing their own options, which in turn
- * may create system objects on the fly.
+ * setup handlers for tuning the configuration, then parsing
+ * their own options, and eventually doing the init chores.
*/
if (!pvlist_empty(&setup_list)) {
+
+ CANCEL_DEFER(svc);
+
+ pvlist_for_each_entry(setup, &setup_list, __reserved.next) {
+ if (setup->tune) {
+ ret = setup->tune();
+ if (ret)
+ break;
+ }
+ }
+
ret = parse_setup_options(argcp, largc, uargv, options);
if (ret)
goto fail;
@@ -512,8 +523,6 @@ void xenomai_init(int *argcp, char *const **argvp)
*/
__config_done = 1;
- CANCEL_DEFER(svc);
-
pvlist_for_each_entry(setup, &setup_list, __reserved.next) {
if (setup->init) {
ret = setup->init();
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