hmFS.open(path, flag)
Open file
Type
(path: string, flag: FLAG) => fileId
Parameters
path
| Description | Required | Type | Default |
|---|---|---|---|
| file path | yes | string | - |
FLAG
| Optional Properties | Description |
|---|---|
| O_RDONLY | read-only |
| O_WRONLY | write-only |
| O_RDWR | read-write |
| O_APPEND | Append mode on. |
| O_CREAT | If file does not exist, create and open. |
| O_EXCL | Used in conjunction with O_CREAT. If it does not exist, create and open it, if it does exist, return an error. |
| O_TRUNC | If the file exists, the length is truncated to 0. |
fileId
| Description | Type |
|---|---|
| file handle | number |
Usage
const fileId = hmFS.open('test_file.txt', hmFS.O_RDWR | hmFS.O_CREAT)