1 files changed, 102 insertions, 0 deletions
diff --git a/fluent-bit/src/flb_input_trace.c b/fluent-bit/src/flb_input_trace.c
new file mode 100644
index 000000000..ced8e9ee2
--- /dev/null
+++ b/fluent-bit/src/flb_input_trace.c
@@ -0,0 +1,102 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2022 The Fluent Bit Authors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include <fluent-bit/flb_info.h>
+#include <fluent-bit/flb_input.h>
+#include <fluent-bit/flb_input_chunk.h>
+#include <fluent-bit/flb_input_trace.h>
+#include <fluent-bit/flb_input_plugin.h>
+
+#include <ctraces/ctraces.h>
+#include <ctraces/ctr_decode_msgpack.h>
+
+static int input_trace_append(struct flb_input_instance *ins,
+                              size_t processor_starting_stage,
+                              const char *tag, size_t tag_len,
+                              struct ctrace *ctr)
+{
+    int ret;
+    char *out_buf;
+    size_t out_size;
+    int processor_is_active;
+
+    processor_is_active = flb_processor_is_active(ins->processor);
+    if (processor_is_active) {
+        if (!tag) {
+            if (ins->tag && ins->tag_len > 0) {
+                tag = ins->tag;
+                tag_len = ins->tag_len;
+            }
+            else {
+                tag = ins->name;
+                tag_len = strlen(ins->name);
+            }
+        }
+
+        ret = flb_processor_run(ins->processor,
+                                processor_starting_stage,
+                                FLB_PROCESSOR_TRACES,
+                                tag, tag_len,
+                                (char *) ctr,
+                                0, NULL, NULL);
+
+        if (ret == -1) {
+            return -1;
+        }
+    }
+
+    /* Convert trace context to msgpack */
+    ret = ctr_encode_msgpack_create(ctr, &out_buf, &out_size);
+    if (ret != 0) {
+        flb_plg_error(ins, "could not encode traces");
+        return -1;
+    }
+
+    /* Append packed metrics */
+    ret = flb_input_chunk_append_raw(ins, FLB_INPUT_TRACES, 0,
+                                     tag, tag_len, out_buf, out_size);
+
+    ctr_encode_msgpack_destroy(out_buf);
+
+    return ret;
+}
+
+/* Take a CTrace context and enqueue it as a Trace chunk */
+int flb_input_trace_append(struct flb_input_instance *ins,
+                           const char *tag, size_t tag_len,
+                           struct ctrace *ctr)
+{
+    return input_trace_append(ins,
+                              0,
+                              tag, tag_len,
+                              ctr);
+}
+
+/* Take a CTrace context and enqueue it as a Trace chunk */
+int flb_input_trace_append_skip_processor_stages(
+        struct flb_input_instance *ins,
+        size_t processor_starting_stage,
+        const char *tag, size_t tag_len,
+        struct ctrace *ctr)
+{
+    return input_trace_append(ins,
+                              processor_starting_stage,
+                              tag, tag_len,
+                              ctr);
+}