| 17 | let ffiLoadAttempted = false |
| 18 | |
| 19 | async function loadFFI(): Promise<void> { |
| 20 | if (ffiLoadAttempted || process.platform !== 'darwin') { |
| 21 | return |
| 22 | } |
| 23 | ffiLoadAttempted = true |
| 24 | |
| 25 | try { |
| 26 | const ffi = await import('bun:ffi') |
| 27 | const lib = ffi.dlopen( |
| 28 | `/System/Library/Frameworks/Carbon.framework/Carbon`, |
| 29 | { |
| 30 | CGEventSourceFlagsState: { |
| 31 | args: [ffi.FFIType.i32], |
| 32 | returns: ffi.FFIType.u64, |
| 33 | }, |
| 34 | }, |
| 35 | ) |
| 36 | cgEventSourceFlagsState = (stateID: number): number => { |
| 37 | return Number(lib.symbols.CGEventSourceFlagsState(stateID)) |
| 38 | } |
| 39 | } catch { |
| 40 | cgEventSourceFlagsState = null |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | export async function prewarm(): Promise<void> { |
| 45 | await loadFFI() |