Add trace environment field getters

[babeltrace.git] / formats / ctf / ir / trace.c

diff --git a/formats/ctf/ir/trace.c b/formats/ctf/ir/trace.c
index 8d5f72705c5078b59cf848bfa60a897c293c0212..5787f9f54f6f3be08d81078ab1d9066d1b190ec8 100644 (file)
--- a/formats/ctf/ir/trace.c
+++ b/formats/ctf/ir/trace.c
@@ -259,7 +259,7 @@ error:
 
 int bt_ctf_trace_add_environment_field_integer(struct bt_ctf_trace *trace,
                const char *name,
-               int64_t value)
+               int64_t value)
 {
        struct environment_variable *var = NULL;
        int ret = 0;
@@ -295,6 +295,95 @@ error:
        return ret;
 }
 
+int bt_ctf_trace_get_environment_field_count(struct bt_ctf_trace *trace)
+{
+       int ret = 0;
+
+       if (!trace) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = trace->environment->len;
+end:
+       return ret;
+}
+
+enum bt_environment_field_type
+bt_ctf_trace_get_environment_field_type(struct bt_ctf_trace *trace, int index)
+{
+       struct environment_variable *var;
+       enum bt_environment_field_type type = BT_ENVIRONMENT_FIELD_TYPE_UNKNOWN;
+
+       if (!trace || index < 0 || index >= trace->environment->len) {
+               goto end;
+       }
+
+       var = g_ptr_array_index(trace->environment, index);
+       type = var->type;
+end:
+       return type;
+}
+
+const char *
+bt_ctf_trace_get_environment_field_name(struct bt_ctf_trace *trace,
+               int index)
+{
+       struct environment_variable *var;
+       const char *ret = NULL;
+
+       if (!trace || index < 0 || index >= trace->environment->len) {
+               goto end;
+       }
+
+       var = g_ptr_array_index(trace->environment, index);
+       ret = var->name->str;
+end:
+       return ret;
+}
+
+const char *
+bt_ctf_trace_get_environment_field_value_string(struct bt_ctf_trace *trace,
+               int index)
+{
+       struct environment_variable *var;
+       const char *ret = NULL;
+
+       if (!trace || index < 0 || index >= trace->environment->len) {
+               goto end;
+       }
+
+       var = g_ptr_array_index(trace->environment, index);
+       if (var->type != BT_ENVIRONMENT_FIELD_TYPE_STRING) {
+               goto end;
+       }
+       ret = var->value.string->str;
+end:
+       return ret;
+}
+
+int
+bt_ctf_trace_get_environment_field_value_integer(struct bt_ctf_trace *trace,
+               int index, int64_t *value)
+{
+       struct environment_variable *var;
+       int ret = 0;
+
+       if (!trace || !value || index < 0 || index >= trace->environment->len) {
+               ret = -1;
+               goto end;
+       }
+
+       var = g_ptr_array_index(trace->environment, index);
+       if (var->type != BT_ENVIRONMENT_FIELD_TYPE_INTEGER) {
+               ret = -1;
+               goto end;
+       }
+       *value = var->value.integer;
+end:
+       return ret;
+}
+
 int bt_ctf_trace_add_clock(struct bt_ctf_trace *trace,
                struct bt_ctf_clock *clock)
 {