1 files changed, 57 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/in_forward/fw_conn.h b/src/fluent-bit/plugins/in_forward/fw_conn.h
new file mode 100644
index 000000000..4c04d9400
--- /dev/null
+++ b/src/fluent-bit/plugins/in_forward/fw_conn.h
@@ -0,0 +1,57 @@
+/* -*- 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.
+ */
+
+#ifndef FLB_IN_FW_CONN_H
+#define FLB_IN_FW_CONN_H
+
+#define FLB_IN_FW_CHUNK_SIZE      "1024000" /* 1MB */
+#define FLB_IN_FW_CHUNK_MAX_SIZE  "6144000" /* =FLB_IN_FW_CHUNK_SIZE * 6.  6MB */
+
+enum {
+    FW_NEW        = 1,  /* it's a new connection                */
+    FW_CONNECTED  = 2,  /* MQTT connection per protocol spec OK */
+};
+
+struct fw_conn_stream {
+    char *tag;
+    size_t tag_len;
+};
+
+/* Respresents a connection */
+struct fw_conn {
+    int status;                      /* Connection status                 */
+
+    /* Buffer */
+    char *buf;                       /* Buffer data                       */
+    int  buf_len;                    /* Data length                       */
+    int  buf_size;                   /* Buffer size                       */
+    size_t rest;                     /* Unpacking offset                  */
+
+    struct flb_input_instance *in;   /* Parent plugin instance            */
+    struct flb_in_fw_config *ctx;    /* Plugin configuration context      */
+    struct flb_connection *connection;
+
+    struct mk_list _head;
+};
+
+struct fw_conn *fw_conn_add(struct flb_connection *connection, struct flb_in_fw_config *ctx);
+int fw_conn_del(struct fw_conn *conn);
+int fw_conn_del_all(struct flb_in_fw_config *ctx);
+
+#endif