From c6f9c5a3ab5bfe30a46a61331e79e0f53bb3d6f9 Mon Sep 17 00:00:00 2001 From: Philippe Proulx Date: Wed, 15 Apr 2015 16:18:34 -0400 Subject: [PATCH] ir: add bt_ctf_field_string_append() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Philippe Proulx Signed-off-by: Jérémie Galarneau --- formats/ctf/ir/event-fields.c | 27 ++++++++++++++++++++++++ include/babeltrace/ctf-ir/event-fields.h | 16 ++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/formats/ctf/ir/event-fields.c b/formats/ctf/ir/event-fields.c index a93cf695..92c06da8 100644 --- a/formats/ctf/ir/event-fields.c +++ b/formats/ctf/ir/event-fields.c @@ -919,6 +919,33 @@ end: return ret; } +int bt_ctf_field_string_append(struct bt_ctf_field *field, + const char *value) +{ + int ret = 0; + struct bt_ctf_field_string *string_field; + + if (!field || !value || + bt_ctf_field_type_get_type_id(field->type) != + CTF_TYPE_STRING) { + ret = -1; + goto end; + } + + string_field = container_of(field, struct bt_ctf_field_string, parent); + + if (string_field->payload) { + g_string_append(string_field->payload, value); + } else { + string_field->payload = g_string_new(value); + } + + string_field->parent.payload_set = 1; + +end: + return ret; +} + BT_HIDDEN int bt_ctf_field_validate(struct bt_ctf_field *field) { diff --git a/include/babeltrace/ctf-ir/event-fields.h b/include/babeltrace/ctf-ir/event-fields.h index f0dd825c..489c2bf8 100644 --- a/include/babeltrace/ctf-ir/event-fields.h +++ b/include/babeltrace/ctf-ir/event-fields.h @@ -288,6 +288,22 @@ extern const char *bt_ctf_field_string_get_value( extern int bt_ctf_field_string_set_value(struct bt_ctf_field *string_field, const char *value); +/* + * bt_ctf_field_string_append: append a string to a string field's + * current value. + * + * Append a string to the current value of a string field. If the string + * field was never set using bt_ctf_field_string_set_value(), it is + * first set to an empty string, and then the concatenation happens. + * + * @param string_field String field instance. + * @param value String to append to the current string field's value. + * + * Returns 0 on success, a negative value on error. + */ +extern int bt_ctf_field_string_append(struct bt_ctf_field *string_field, + const char *value); + /* * bt_ctf_field_get_type: get a field's type * -- 2.34.1