From 20f59ee12e141cbf47f64ff7cd072a1e9363e0c8 Mon Sep 17 00:00:00 2001
From: Ben Walker <benjamin.walker@intel.com>
Date: Thu, 12 May 2016 15:38:22 -0700
Subject: [PATCH] conf: Add configuration file iteration functions

These allow linear searches of the configuration file
sections.

Change-Id: I8d8b9594bc8a974c16d999689a6195434c1efac8
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
---
 include/spdk/conf.h |  4 ++++
 lib/conf/conf.c     | 21 +++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/include/spdk/conf.h b/include/spdk/conf.h
index 00d20efe0..63beea2ca 100644
--- a/include/spdk/conf.h
+++ b/include/spdk/conf.h
@@ -70,6 +70,10 @@ void spdk_conf_free(struct spdk_conf *cp);
 int spdk_conf_read(struct spdk_conf *cp, const char *file);
 struct spdk_conf_section *spdk_conf_find_section(struct spdk_conf *cp, const char *name);
 
+/* Configuration file iteration */
+struct spdk_conf_section *spdk_conf_first_section(struct spdk_conf *cp);
+struct spdk_conf_section *spdk_conf_next_section(struct spdk_conf_section *sp);
+
 bool spdk_conf_section_match_prefix(const struct spdk_conf_section *sp, const char *name_prefix);
 char *spdk_conf_section_get_nmval(struct spdk_conf_section *sp, const char *key,
 				  int idx1, int idx2);
diff --git a/lib/conf/conf.c b/lib/conf/conf.c
index 146ec252d..0ed07891f 100644
--- a/lib/conf/conf.c
+++ b/lib/conf/conf.c
@@ -215,6 +215,27 @@ spdk_conf_find_section(struct spdk_conf *cp, const char *name)
 	return NULL;
 }
 
+struct spdk_conf_section *
+spdk_conf_first_section(struct spdk_conf *cp)
+{
+	cp = CHECK_CP_OR_USE_DEFAULT(cp);
+	if (cp == NULL) {
+		return NULL;
+	}
+
+	return cp->section;
+}
+
+struct spdk_conf_section *
+spdk_conf_next_section(struct spdk_conf_section *sp)
+{
+	if (sp == NULL) {
+		return NULL;
+	}
+
+	return sp->next;
+}
+
 static void
 append_cf_section(struct spdk_conf *cp, struct spdk_conf_section *sp)
 {