TypeScript fs.close函数代码示例

	// called below
	function spawnChildren(): void {
		for (let i = 0; i < parsetree.length-1; i++) {
			let cmd = parsetree[i];
			let pout = pipes[i][1];
			let opts = {
				// pass our stdin, stdout, stderr to the child
				stdio: [pin, pout, stderr],
			};
			let child = execute_child(cmd, opts, pids, codes);
			fs.close(pipes[i][1]);
			pin = pipes[i][0];
		}
		// execute last command with our stdout
		let cmd = parsetree[parsetree.length-1];
		let opts = {
			// pass our stdin, stdout, stderr to the child
			stdio: [pin, 1, stderr],
		};
		if (cmd[cmd.length - 1] === '&') {
			cmd = cmd.slice(0, cmd.length - 1);
			bg = true;
		}
		let child = execute_child(cmd, opts, pids, codes);
		for (let i = 0; i < pipes.length; i++) {
			fs.close(pipes[i][0]);
		}
	}

	pipe2((perr: any, rfd: number, wfd: number) => {
		if (perr)
			throw new Error('pipe2 failed: ' + perr);

		let echo = child_process.spawn('/usr/bin/echo', ['hello world'], { stdio: [0, wfd, 2] });
		echo.on('error', (err: any) => {
			process.stderr.write('error: ' + err, () => {
				exit = 1;
				childFinished(err);
			});
		});
		echo.on('exit', (code: number) => {
			childFinished(null, code);
		});

		// XXX: we don't need the wfd at this point, and
		// keeping it open seems to prevent cat from getting
		// an EOF on the pipe?
		fs.close(wfd, () => {
			let cat = child_process.spawn('/usr/bin/cat', [], { stdio: [rfd, 1, 2] });
			cat.on('error', (err: any) => {
				process.stderr.write('error: ' + err, () => {
					childFinished(err);
				});
			});
			cat.on('exit', (code: number) => {
				childFinished(null, code);
			});
			fs.close(rfd);
		});

	});

 fs.read(fd, Buffer.alloc(length), 0, length, resourceOffset, function(
   error: Error,
   bytesRead: number,
   result: Buffer
 ) {
   if (error) {
     return fs.close(fd, function() {
       callback(error, null)
     })
   }
   fs.close(fd, function(err: Error) {
     if (err) {
       return callback(err, result)
     }
     callback(err, encoding ? result.toString(encoding) : result)
   })
 })

 FS.write(info.fd, contents, async (err) => {
   if (err) {
     reject(err)
   } else {
     resolve(await gen(info.path))
     FS.close(info.fd, () => FS.unlink(info.path, () => { /*noop*/ }))
   }
 }))

 return new Promise<any>((resolve, reject) => {
     fs.close(fd, (err: any) => {
         if (err) {
             reject(err);
         } else {
             resolve();
         }
     });
 });

				fs.write(fd, buffer, 0, buffer.length, null, (err) => {
					if (err) throw 'Error writing file: ' + err;
					fs.close(fd, async () => {
						const objecthash = git.hashObject(dir, path.join('..', 'Temp', 'whatever'));
						git.addToIndex(dir, objecthash, 'Assets/' + filename);
						const treehash = git.writeTree(dir);
						const sha = git.commitTree(dir, treehash, parenthash);
						resolve(sha);
					});
				});

export function prependTextToFileSync(filePath: string, fileContent: string) {
    if (isFileExists(filePath)) {
        let data = fs.readFileSync(filePath); // read existing contents into data
        let fd = fs.openSync(filePath, "w+");
        let buffer = new Buffer(fileContent);
        fs.writeSync(fd, buffer, 0, buffer.length, 0); // write new data
        fs.writeSync(fd, data, 0, data.length, 0); // append old data
        fs.close(fd);
    }
}

					fs.open(path, 'wx', function(oerr:  any, fd: number): void {
						if (oerr) {
							// now we're in trouble and
							// we should try other files instead.
							code = 1;
							let msg = pathToScript + ': ' + oerr + '\n';
							process.stderr.write(msg, finished);
						}
						// thats it - close the sucker.
						fs.close(fd, finished);
					});

			fs.fdatasync(fd, (syncError: Error) => {

				// In some exotic setups it is well possible that node fails to sync
				// In that case we disable flushing and warn to the console
				if (syncError) {
					console.warn('[node.js fs] fdatasync is now disabled for this session because it failed: ', syncError);
					canFlush = false;
				}

				return fs.close(fd, closeError => callback(closeError));
			});

 inputStream.on('end', () => {
     fs.close(files[name].handler, () => {
         fs.unlink('server/temp/' + name, (err: Error) => {
             if (err) {
                 throw err;
             }
             console.log('File deleted!');
             // Emit a done event to alert the user 
             socket.emit('Done', { path: 'server/files/' + name, name: name });
         });
     });
 });