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35 lines
790 B
35 lines
790 B
const fs = require('fs');
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const read_file = (fname, events) => {
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let noop = () => {};
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let onStat = events.onStat || noop;
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let onOpen = events.onOpen || noop;
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let onRead = events.onRead || noop;
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fs.stat(fname, (err, stats) => {
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onStat(stats);
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fs.open(fname, 'r', (err, fd) => {
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onOpen(fd);
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let inbuf = Buffer.alloc(stats.size);
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fs.read(fd, inbuf, 0, stats.size, null, (err, bytesRead, buffer) => {
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onRead(bytesRead, buffer);
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});
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});
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});
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}
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read_file('test.txt', {
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onRead: (bytesRead, buffer) => {
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console.log(`Read ${bytesRead} bytes: ${buffer.toString()}`);
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},
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onStat: (stat) => {
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console.log(`Got stats, file is ${stat.size} size.`);
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},
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onOpen: (fd) => {
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console.log(`Open worked, fd is ${fd}`);
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}
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});
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