54 lines
898 B
JavaScript
54 lines
898 B
JavaScript
// Deno-specific ffi code
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import { IFFI } from '../common/runtime.ts';
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let suffix = '';
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switch (Deno.build.os) {
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case 'windows':
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suffix = 'dll';
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break;
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case 'darwin':
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suffix = 'dylib';
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break;
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default:
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suffix = 'so.6';
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break;
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}
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const cSharedLib = `libc.${suffix}`;
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const cStdLib = Deno.dlopen(
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cSharedLib,
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{
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tcgetattr: {
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parameters: ['i32', 'pointer'],
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result: 'i32',
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},
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tcsetattr: {
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parameters: ['i32', 'i32', 'pointer'],
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result: 'i32',
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},
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cfmakeraw: {
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parameters: ['pointer'],
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result: 'void',
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},
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} as const,
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);
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const { tcgetattr, tcsetattr, cfmakeraw } = cStdLib.symbols;
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let closed = false;
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const DenoFFI: IFFI = {
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tcgetattr,
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tcsetattr,
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cfmakeraw,
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getPointer: Deno.UnsafePointer.of,
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close: () => {
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if (!closed) {
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cStdLib.close();
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closed = true;
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}
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// Do nothing if FFI library was already closed
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},
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};
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export default DenoFFI;
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