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Commit 069ee5c4 authored by Wang Nan's avatar Wang Nan Committed by Arnaldo Carvalho de Melo
Browse files

perf data ctf: Add value_set_string() helper 



There are many value_set_##x helper for integer, but only for integer.
This patch adds value_set_string() helper to help following commits
create string fields.

Signed-off-by: default avatarWang Nan <wangnan0@huawei.com>
Acked-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1466767332-114472-2-git-send-email-wangnan0@huawei.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ed7b630b

tools/perf/util/data-convert-bt.c

+30 −0
Original line number Diff line number Diff line
@@ -141,6 +141,36 @@ FUNC_VALUE_SET(s64) 
FUNC_VALUE_SET(u64)

__FUNC_VALUE_SET(u64_hex, u64)



static int string_set_value(struct bt_ctf_field *field, const char *string);

static __maybe_unused int

value_set_string(struct ctf_writer *cw, struct bt_ctf_event *event,

		 const char *name, const char *string)

{

	struct bt_ctf_field_type *type = cw->data.string;

	struct bt_ctf_field *field;

	int ret = 0;



	field = bt_ctf_field_create(type);

	if (!field) {

		pr_err("failed to create a field %s\n", name);

		return -1;

	}



	ret = string_set_value(field, string);

	if (ret) {

		pr_err("failed to set value %s\n", name);

		goto err_put_field;

	}



	ret = bt_ctf_event_set_payload(event, name, field);

	if (ret)

		pr_err("failed to set payload %s\n", name);



err_put_field:

	bt_ctf_field_put(field);

	return ret;

}



static struct bt_ctf_field_type*

get_tracepoint_field_type(struct ctf_writer *cw, struct format_field *field)

{