Upped chunk size to 16kb (down not working)

app/src/lib/filesystem/chunkedTransfer.ts

@@ -12,7 +12,7 @@ import type {
 	CorrelationResponse
 } from '$lib/platform_shared/message'
 
-const MAX_CHUNK_SIZE = 1024
+const MAX_CHUNK_SIZE = 2**14 // ~= 16 kb
 
 export interface FileInfo {
 	name: string

esp32/include/filesystem_ws.h

@@ -5,7 +5,8 @@
 #include <map>
 #include <string>
 
-#define FS_MAX_CHUNK_SIZE 1024
+// Make sure that this aligns with socket_message.FSDownloadChunkResponse.data max_size (and for the corresponsing request)
+#define FS_MAX_CHUNK_SIZE 2**14 // ~= 16 kb
 #define FS_TRANSFER_TIMEOUT 30000  // 30 seconds
 
 namespace FileSystemWS {

esp32/src/filesystem_ws.cpp

@@ -2,6 +2,7 @@
 #include <filesystem.h>
 #include <pb_encode.h>
 #include <pb_decode.h>
+#include <esp_littlefs.h>
 
 static const char* TAG = "FileSystemWS";
 
@@ -307,6 +308,17 @@ socket_message_FSUploadChunkResponse FileSystemHandler::handleUploadChunk(const
     TransferState& state = it->second;
     state.lastActivityTime = millis();
 
+    // Check available space before writing
+    size_t fs_total = 0, fs_used = 0;
+    esp_littlefs_info("spiffs", &fs_total, &fs_used);
+    size_t freeSpace = fs_total  - fs_used;
+    if (freeSpace < req.data.size + 4096) {  // 4KB safety margin
+        fs_up_response.success = false;
+        strncpy(fs_up_response.error, "Filesystem full", sizeof(fs_up_response.error) - 1);
+        state.file.close();
+        transfers_.erase(it);
+        return fs_up_response;
+    }
     // Write chunk data
     size_t bytesWritten = state.file.write(req.data.bytes, req.data.size);
     if (bytesWritten != req.data.size) {

platform_shared/message.options

@@ -60,7 +60,7 @@ socket_message.FSDownloadStartResponse.transfer_id max_size:64
 
 socket_message.FSDownloadChunkRequest.transfer_id max_size:64
 socket_message.FSDownloadChunkResponse.transfer_id max_size:64
-socket_message.FSDownloadChunkResponse.data max_size:1024
+socket_message.FSDownloadChunkResponse.data max_size:16384
 socket_message.FSDownloadChunkResponse.error max_size:128
 
 socket_message.FSUploadStartRequest.path max_size:256
@@ -68,7 +68,7 @@ socket_message.FSUploadStartResponse.error max_size:128
 socket_message.FSUploadStartResponse.transfer_id max_size:64
 
 socket_message.FSUploadChunkRequest.transfer_id max_size:64
-socket_message.FSUploadChunkRequest.data max_size:1024
+socket_message.FSUploadChunkRequest.data max_size:16384
 socket_message.FSUploadChunkResponse.transfer_id max_size:64
 socket_message.FSUploadChunkResponse.error max_size:128