🔨 wrap native file ffi symbols locally

src/utils/file_backend_native.mbt

@@ -35,7 +35,7 @@ fn string_to_c_bytes(str : String) -> Bytes {
 type NativeFileHandle
 
 #borrow(path, mode)
-extern "C" fn file_open_ffi(path : Bytes, mode : Bytes) -> NativeFileHandle = "fopen"
+extern "C" fn file_open_ffi(path : Bytes, mode : Bytes) -> NativeFileHandle = "bitlogger_file_open"
 
 extern "C" fn file_is_null_ffi(handle : NativeFileHandle) -> Bool = "bitlogger_pointer_is_null"
 
@@ -45,21 +45,28 @@ extern "C" fn file_write_ffi(
   size : Int,
   count : Int,
   handle : NativeFileHandle,
-) -> Int = "fwrite"
+) -> Int = "bitlogger_file_write"
 
-extern "C" fn file_flush_ffi(handle : NativeFileHandle) -> Int = "fflush"
+extern "C" fn file_flush_ffi(handle : NativeFileHandle) -> Int = "bitlogger_file_flush"
 
-extern "C" fn file_close_ffi(handle : NativeFileHandle) -> Int = "fclose"
+extern "C" fn file_close_ffi(handle : NativeFileHandle) -> Int = "bitlogger_file_close"
 
-extern "C" fn file_seek_ffi(handle : NativeFileHandle, offset : Int, origin : Int) -> Int = "fseek"
+extern "C" fn file_seek_ffi(
+  handle : NativeFileHandle,
+  offset : Int,
+  origin : Int,
+) -> Int = "bitlogger_file_seek"
 
-extern "C" fn file_tell_ffi(handle : NativeFileHandle) -> Int = "ftell"
+extern "C" fn file_tell_ffi(handle : NativeFileHandle) -> Int = "bitlogger_file_tell"
 
 #borrow(from_path, to_path)
-extern "C" fn file_rename_ffi(from_path : Bytes, to_path : Bytes) -> Int = "rename"
+extern "C" fn file_rename_ffi(
+  from_path : Bytes,
+  to_path : Bytes,
+) -> Int = "bitlogger_file_rename"
 
 #borrow(path)
-extern "C" fn file_remove_ffi(path : Bytes) -> Int = "remove"
+extern "C" fn file_remove_ffi(path : Bytes) -> Int = "bitlogger_file_remove"
 
 pub struct FileHandle {
   path : String

src/utils/stub.c

@@ -1,5 +1,51 @@
 #include <stdint.h>
 
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include <stdio.h>
+
 int32_t bitlogger_pointer_is_null(void *ptr) {
   return ptr == 0;
 }
+
+void *bitlogger_file_open(const char *path, const char *mode) {
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#endif
+  return fopen(path, mode);
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+}
+
+int32_t bitlogger_file_write(const char *buffer, int32_t size, int32_t count, void *handle) {
+  return (int32_t)fwrite(buffer, (size_t)size, (size_t)count, (FILE *)handle);
+}
+
+int32_t bitlogger_file_flush(void *handle) {
+  return fflush((FILE *)handle);
+}
+
+int32_t bitlogger_file_close(void *handle) {
+  return fclose((FILE *)handle);
+}
+
+int32_t bitlogger_file_seek(void *handle, int32_t offset, int32_t origin) {
+  return fseek((FILE *)handle, offset, origin);
+}
+
+int32_t bitlogger_file_tell(void *handle) {
+  long position = ftell((FILE *)handle);
+  return position < 0 ? -1 : (int32_t)position;
+}
+
+int32_t bitlogger_file_rename(const char *from_path, const char *to_path) {
+  return rename(from_path, to_path);
+}
+
+int32_t bitlogger_file_remove(const char *path) {
+  return remove(path);
+}