From 6ac09966ba7871527593a016491829972bfd1139 Mon Sep 17 00:00:00 2001
From: Sergey Lyubka <valenok@gmail.com>
Date: Fri, 22 Oct 2021 22:06:10 +0100
Subject: [PATCH] Fix #1374 - fix ESP32 build

---
 examples/esp32/main/main.c        | 21 ++++++++++++++-------
 examples/esp32/sdkconfig.defaults |  1 +
 mongoose.h                        |  3 +--
 src/arch_esp32.h                  |  6 +++---
 4 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/examples/esp32/main/main.c b/examples/esp32/main/main.c
index 4d508f4f..3727ef9c 100644
--- a/examples/esp32/main/main.c
+++ b/examples/esp32/main/main.c
@@ -9,6 +9,14 @@
 #define WIFI_PASS "WIFI_PASSWORD"  // SET THIS!
 #define FS_ROOT "/spiffs"
 
+// SPIFFS is flat, so tell Mongoose that the FS root is a directory
+// This cludge is not required for filesystems with directory support
+static int my_stat(const char *path, size_t *size, time_t *mtime) {
+  int flags = mg_fs_posix.stat(path, size, mtime);
+  if (strcmp(path, FS_ROOT) == 0) flags |= MG_FS_DIR;
+  return flags;
+}
+
 // Event handler for an server (accepted) connection. Implemented endpoints:
 //    /api/stats  - return JSON object with ESP32 stats (free RAM)
 //    any other   - serve files from the filesystem
@@ -18,18 +26,17 @@ static void cb(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
     if (mg_http_match_uri(hm, "/api/stats")) {
       mg_http_reply(c, 200, "", "{\"ram\": %lu}\n", xPortGetFreeHeapSize());
     } else {
-      struct mg_http_serve_opts opts = {.root_dir = FS_ROOT};
+      // mg_http_reply(c, 404, "", "Not found: %d\n", MG_PATH_MAX);
+      // return;
+      struct mg_fs fs = mg_fs_posix;
+      fs.stat = my_stat;
+      struct mg_http_serve_opts opts = {.root_dir = FS_ROOT, .fs = &fs};
+      // opts.fs = NULL;
       mg_http_serve_dir(c, hm, &opts);
     }
   }
 }
 
-// SPIFFS is flat, so tell Mongoose that the FS root is a directory
-// This cludge is not required for filesystems with directory support
-bool mg_is_dir(const char *path) {
-  return strcmp(path, FS_ROOT) == 0;
-}
-
 void app_main(void) {
   // Mount filesystem
   esp_vfs_spiffs_conf_t conf = {
diff --git a/examples/esp32/sdkconfig.defaults b/examples/esp32/sdkconfig.defaults
index 8ff365b1..607180e5 100644
--- a/examples/esp32/sdkconfig.defaults
+++ b/examples/esp32/sdkconfig.defaults
@@ -1,3 +1,4 @@
 CONFIG_PARTITION_TABLE_CUSTOM=y
 CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
 CONFIG_PARTITION_TABLE_FILENAME="partitions.csv"
+#CONFIG_ESP_MAIN_TASK_STACK_SIZE=8192
diff --git a/mongoose.h b/mongoose.h
index f0b36538..02b73ae0 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -199,9 +199,8 @@ static __inline struct tm *localtime_r(time_t *t, struct tm *tm) {
 
 #define MG_DIRSEP '/'
 #define MG_INT64_FMT "%lld"
-#ifndef MG_PATH_MAX
+#undef MG_PATH_MAX
 #define MG_PATH_MAX 128
-#endif
 #undef MG_ENABLE_DIRLIST
 #define MG_ENABLE_DIRLIST 1
 
diff --git a/src/arch_esp32.h b/src/arch_esp32.h
index 92f5a103..650880a8 100644
--- a/src/arch_esp32.h
+++ b/src/arch_esp32.h
@@ -17,12 +17,12 @@
 #include <sys/types.h>
 #include <time.h>
 
+#undef MG_PATH_MAX
+#undef MG_ENABLE_DIRLIST
+
 #define MG_DIRSEP '/'
 #define MG_INT64_FMT "%lld"
-#ifndef MG_PATH_MAX
 #define MG_PATH_MAX 128
-#endif
-#undef MG_ENABLE_DIRLIST
 #define MG_ENABLE_DIRLIST 1
 
 #endif