✨ Add Int64 file rotation path and JSON roundtrip

src/utils/config.mbt

@@ -245,6 +245,30 @@ fn get_int(
   }
 }
 
+///|
+fn get_optional_int64_string(
+  obj : Map[String, @json_parser.JsonValue],
+  key : String,
+) -> Int64? raise ConfigError {
+  match obj.get(key) {
+    None => None
+    Some(value) =>
+      match value.as_string() {
+        Some(text) =>
+          Some(
+            @string.parse_int64(text) catch {
+              _ =>
+                raise ConfigError::InvalidConfig(
+                  "Expected int64 string at key " + key,
+                )
+            },
+          )
+        None =>
+          raise ConfigError::InvalidConfig("Expected string at key " + key)
+      }
+  }
+}
+
 ///|
 fn parse_level(name : String) -> @core.Level raise ConfigError {
   match name.to_upper() {
@@ -403,10 +427,11 @@ fn parse_file_rotation_config(
   value : @json_parser.JsonValue,
 ) -> FileRotation raise ConfigError {
   let obj = expect_object(value, "sink.rotation")
-  file_rotation(
-    get_int(obj, "max_bytes", default=1),
-    max_backups=get_int(obj, "max_backups", default=1),
-  )
+  let max_backups = get_int(obj, "max_backups", default=1)
+  match get_optional_int64_string(obj, "max_bytes_i64") {
+    Some(max_bytes_i64) => file_rotation_i64(max_bytes_i64, max_backups~)
+    None => file_rotation(get_int(obj, "max_bytes", default=1), max_backups~)
+  }
 }
 
 ///|
@@ -570,12 +595,18 @@ pub fn stringify_text_formatter_config(
 pub fn file_rotation_config_to_json(
   config : FileRotation,
 ) -> @json_parser.JsonValue {
-  @json_parser.JsonValue::Object({
+  let obj : Map[String, @json_parser.JsonValue] = {
     "max_bytes": @json_parser.JsonValue::Number(config.max_bytes.to_double()),
     "max_backups": @json_parser.JsonValue::Number(
       config.max_backups.to_double(),
     ),
-  })
+  }
+  match config.native_wide_max_bytes {
+    Some(value) =>
+      obj["max_bytes_i64"] = @json_parser.JsonValue::String(value.to_string())
+    None => ()
+  }
+  @json_parser.JsonValue::Object(obj)
 }
 
 ///|

src/utils/file_backend_native.mbt

@@ -66,7 +66,7 @@ extern "C" fn file_seek_ffi(
 ) -> Int = "bitlogger_file_seek"
 
 ///|
-extern "C" fn file_tell_ffi(handle : NativeFileHandle) -> Int = "bitlogger_file_tell"
+extern "C" fn file_tell_i64_ffi(handle : NativeFileHandle) -> Int64 = "bitlogger_file_tell_i64"
 
 ///|
 #borrow(from_path, to_path)
@@ -114,11 +114,11 @@ pub fn close_file_handle_internal(handle : FileHandle) -> Bool {
 }
 
 ///|
-pub fn file_size_internal(handle : FileHandle) -> Int {
+pub fn file_size_i64_internal(handle : FileHandle) -> Int64 {
   ignore(file_seek_ffi(handle.raw, 0, 2))
-  let size = file_tell_ffi(handle.raw)
-  if size < 0 {
-    0
+  let size = file_tell_i64_ffi(handle.raw)
+  if size < 0L {
+    0L
   } else {
     size
   }

src/utils/file_backend_stub.mbt

@@ -35,9 +35,9 @@ pub fn close_file_handle_internal(handle : FileHandle) -> Bool {
 }
 
 ///|
-pub fn file_size_internal(handle : FileHandle) -> Int {
+pub fn file_size_i64_internal(handle : FileHandle) -> Int64 {
   ignore(handle)
-  0
+  0L
 }
 
 ///|

src/utils/moon.pkg

@@ -4,6 +4,7 @@ import {
   "moonbitlang/core/env",
   "moonbitlang/core/json",
   "moonbitlang/core/ref",
+  "moonbitlang/core/string",
 }
 
 options(

src/utils/sink_models.mbt

@@ -2,6 +2,7 @@
 pub struct FileRotation {
   max_bytes : Int
   max_backups : Int
+  native_wide_max_bytes : Int64?
 }
 
 ///|
@@ -71,6 +72,29 @@ pub fn file_rotation(max_bytes : Int, max_backups? : Int = 1) -> FileRotation {
     } else {
       max_backups
     },
+    native_wide_max_bytes: None,
+  }
+}
+
+///|
+pub fn file_rotation_i64(
+  max_bytes : Int64,
+  max_backups? : Int = 1,
+) -> FileRotation {
+  let normalized = if max_bytes <= 0L { 1L } else { max_bytes }
+  let clamped_max_bytes = if normalized > 2147483647L {
+    2147483647
+  } else {
+    normalized.to_int()
+  }
+  {
+    max_bytes: clamped_max_bytes,
+    max_backups: if max_backups <= 0 {
+      1
+    } else {
+      max_backups
+    },
+    native_wide_max_bytes: Some(normalized),
   }
 }
 

src/utils/stub.c

@@ -37,9 +37,13 @@ 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;
+int64_t bitlogger_file_tell_i64(void *handle) {
+#if defined(_WIN32)
+  __int64 position = _ftelli64((FILE *)handle);
+#else
+  long long position = ftello((FILE *)handle);
+#endif
+  return position < 0 ? -1 : (int64_t)position;
 }
 
 int32_t bitlogger_file_rename(const char *from_path, const char *to_path) {