[dpdk-dev] [PATCH 1/4] kvargs: support list value
Thomas Monjalon
thomas at monjalon.net
Tue Oct 9 04:18:55 CEST 2018
If a value contains a comma, rte_kvargs_tokenize() will split here.
In order to support list syntax [a,b] as value, an extra parsing of
the square brackets is added.
Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
---
lib/librte_kvargs/rte_kvargs.c | 10 ++++++++++
test/test/test_kvargs.c | 17 +++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/lib/librte_kvargs/rte_kvargs.c b/lib/librte_kvargs/rte_kvargs.c
index a28f76945..b0774effb 100644
--- a/lib/librte_kvargs/rte_kvargs.c
+++ b/lib/librte_kvargs/rte_kvargs.c
@@ -44,6 +44,16 @@ rte_kvargs_tokenize(struct rte_kvargs *kvlist, const char *params)
kvlist->pairs[i].value == NULL)
return -1;
+ /* Detect list [a,b] to skip comma delimiter in list. */
+ if (kvlist->pairs[i].value[0] == '[') {
+ /* Parse the end of the list. */
+ str = strtok_r(NULL, "]", &ctx1);
+ if (str == NULL)
+ return -1; /* no closing bracket */
+ /* Add back the bracket erased by strtok_t(). */
+ *(str - 1) = ']';
+ }
+
kvlist->count++;
str = NULL;
}
diff --git a/test/test/test_kvargs.c b/test/test/test_kvargs.c
index e6738624e..cb38b385c 100644
--- a/test/test/test_kvargs.c
+++ b/test/test/test_kvargs.c
@@ -137,6 +137,22 @@ static int test_valid_kvargs(void)
}
rte_kvargs_free(kvlist);
+ /* third test using list as value */
+ args = "foo=[0,1],check=value2";
+ valid_keys = valid_keys_list;
+ kvlist = rte_kvargs_parse(args, valid_keys);
+ if (kvlist == NULL) {
+ printf("rte_kvargs_parse() error");
+ goto fail;
+ }
+ count = kvlist->count;
+ if (count != 2) {
+ printf("invalid count value %d\n", count);
+ rte_kvargs_free(kvlist);
+ goto fail;
+ }
+ rte_kvargs_free(kvlist);
+
return 0;
fail:
@@ -162,6 +178,7 @@ static int test_invalid_kvargs(void)
"foo=1,,foo=2", /* empty key/value */
"foo=1,foo", /* no value */
"foo=1,=2", /* no key */
+ "foo=[1,2", /* no closing bracket in value */
",=", /* also test with a smiley */
NULL };
const char **args;
--
2.19.0
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