[Linuxptp-devel] [PATCH RFC v2 13/16] config: add methods to set values taken from the command line.

[Richard Cochran]

This patch adds functions that will set and lock a certain value.  The
intended use of these methods is to give command line options priority
over the configuration file.

Signed-off-by: Richard Cochran <richardcoch...@gmail.com>
---
 config.c | 28 ++++++++++++++++++++++++++++
 config.h |  3 +++
 2 files changed, 31 insertions(+)

diff --git a/config.c b/config.c
index 9a240d7..817f625 100644
--- a/config.c
+++ b/config.c
@@ -1054,3 +1054,31 @@ unsigned int config_get_uint(struct config *cfg, const 
char *port,
        pr_debug("config item %s.%s is %u", port, option, ci->val.u);
        return ci->val.u;
 }
+
+int config_set_double(struct config *cfg, const char *option, double val)
+{
+       struct config_item *ci = config_find_item(cfg, NULL, option);
+
+       if (!ci || ci->type != CFG_TYPE_DOUBLE) {
+               pr_err("bug: config option %s missing or invalid!", option);
+               return -1;
+       }
+       ci->flags |= CFG_ITEM_LOCKED;
+       ci->val.d = val;
+       pr_debug("config item global.%s locked as %f", option, ci->val.d);
+       return 0;
+}
+
+int config_set_int(struct config *cfg, const char *option, int val)
+{
+       struct config_item *ci = config_find_item(cfg, NULL, option);
+
+       if (!ci || ci->type != CFG_TYPE_INT) {
+               pr_err("bug: config option %s missing or invalid!", option);
+               return -1;
+       }
+       ci->flags |= CFG_ITEM_LOCKED;
+       ci->val.i = val;
+       pr_debug("config item global.%s locked as %d", option, ci->val.i);
+       return 0;
+}
diff --git a/config.h b/config.h
index 1b9192d..dd45d7e 100644
--- a/config.h
+++ b/config.h
@@ -114,4 +114,7 @@ int config_get_int(struct config *cfg, const char *port,
 unsigned int config_get_uint(struct config *cfg, const char *port,
                             const char *option);
 
+int config_set_double(struct config *cfg, const char *option, double val);
+int config_set_int(struct config *cfg, const char *option, int val);
+
 #endif
-- 
2.1.4


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