| #include "{{projectName}}.h" |
| |
| // A very short-lived native function. |
| // |
| // For very short-lived functions, it is fine to call them on the main isolate. |
| // They will block the Dart execution while running the native function, so |
| // only do this for native functions which are guaranteed to be short-lived. |
| FFI_PLUGIN_EXPORT int sum(int a, int b) { return a + b; } |
| |
| // A longer-lived native function, which occupies the thread calling it. |
| // |
| // Do not call these kind of native functions in the main isolate. They will |
| // block Dart execution. This will cause dropped frames in Flutter applications. |
| // Instead, call these native functions on a separate isolate. |
| FFI_PLUGIN_EXPORT int sum_long_running(int a, int b) { |
| // Simulate work. |
| #if _WIN32 |
| Sleep(5000); |
| #else |
| usleep(5000 * 1000); |
| #endif |
| return a + b; |
| } |
