Method

MaplibreNativeFfiRuntimemerge_offline_regions_async

Declaration [src] 

void
maplibre_native_ffi_runtime_merge_offline_regions_async (
  MaplibreNativeFfiRuntime* self,
  const char* side_database_path,
  GAsyncReadyCallback callback,
  gpointer user_data
)

Description [src]

Copies the offline regions of another cache file into the runtime’s cache file.

A region whose definition and metadata match one that the runtime’s file already has isn’t copied again. The result lists the runtime’s copy of each region in the other file.

See mln_runtime_merge_offline_regions in the C API reference.

It fails with these errors:

  • MAPLIBRE_NATIVE_FFI_ERROR_INVALID_ARGUMENT when side_database_path isn’t a readable database file.
  • MAPLIBRE_NATIVE_FFI_ERROR_NATIVE_ERROR when the merge would exceed the tile limit that MAPLIBRE_NATIVE_FFI_RUNTIME_EVENT_OFFLINE_REGION_TILE_COUNT_LIMIT_EXCEEDED describes.

This method completes asynchronously. Use maplibre_native_ffi_runtime_merge_offline_regions_finish() inside the GAsyncReadyCallback to obtain the result of the operation.

Parameters

side_database_path

Type: const char*

The UTF-8 text.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
callback

Type: GAsyncReadyCallback

The callback to call when the call finishes.

The argument can be NULL.
user_data

Type: gpointer

The data to pass to callback.

The argument can be NULL.
The data is owned by the caller of the method.