From 65a8b716e3aa9748d5909a726abdd40eab002b6f Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Sun, 7 Aug 2022 22:35:33 +0200
Subject: [PATCH] examples/gcoap_fileserver: make use of callbacks

---
 examples/gcoap_fileserver/Makefile |  1 +
 examples/gcoap_fileserver/main.c   | 26 ++++++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/examples/gcoap_fileserver/Makefile b/examples/gcoap_fileserver/Makefile
index 96a6aac045..3b3e0caed4 100644
--- a/examples/gcoap_fileserver/Makefile
+++ b/examples/gcoap_fileserver/Makefile
@@ -21,6 +21,7 @@ USEMODULE += shell_commands
 
 # enable the fileserver module
 USEMODULE += gcoap_fileserver
+USEMODULE += gcoap_fileserver_callback
 USEMODULE += gcoap_fileserver_delete
 USEMODULE += gcoap_fileserver_put
 
diff --git a/examples/gcoap_fileserver/main.c b/examples/gcoap_fileserver/main.c
index dd081e5e9f..e736315726 100644
--- a/examples/gcoap_fileserver/main.c
+++ b/examples/gcoap_fileserver/main.c
@@ -17,6 +17,7 @@
  * @}
  */
 
+#include <stdio.h>
 #include "kernel_defines.h"
 #include "net/gcoap.h"
 #include "net/gcoap/fileserver.h"
@@ -45,11 +46,36 @@ static gcoap_listener_t _listener = {
     .resources_len = ARRAY_SIZE(_resources),
 };
 
+static void _event_cb(gcoap_fileserver_event_t event, gcoap_fileserver_event_ctx_t *ctx)
+{
+    switch (event) {
+    case GCOAP_FILESERVER_GET_FILE_START:
+        printf("gcoap fileserver: Download started: %s\n", ctx->path);
+        break;
+    case GCOAP_FILESERVER_GET_FILE_END:
+        printf("gcoap fileserver: Download finished: %s\n", ctx->path);
+        break;
+    case GCOAP_FILESERVER_PUT_FILE_START:
+        printf("gcoap fileserver: Upload started: %s\n", ctx->path);
+        break;
+    case GCOAP_FILESERVER_PUT_FILE_END:
+        printf("gcoap fileserver: Upload finished: %s\n", ctx->path);
+        break;
+    case GCOAP_FILESERVER_DELETE_FILE:
+        printf("gcoap fileserver: Delete %s\n", ctx->path);
+        break;
+    }
+}
+
 int main(void)
 {
     msg_init_queue(_main_msg_queue, MAIN_QUEUE_SIZE);
     gcoap_register_listener(&_listener);
 
+    if (IS_USED(MODULE_GCOAP_FILESERVER_CALLBACK)) {
+        gcoap_fileserver_set_event_cb(_event_cb, NULL);
+    }
+
     char line_buf[SHELL_DEFAULT_BUFSIZE];
     shell_run(NULL, line_buf, SHELL_DEFAULT_BUFSIZE);