@dishuostec/llrt-types
Version:
Type definitions for LLRT, Low Latency Runtime
294 lines (293 loc) • 10.7 kB
TypeScript
declare module "os" {
interface CpuInfo {
model: string;
speed: number;
/** The number of milliseconds spent by the CPU in each mode cannot be obtained at this time. */
times: {
/** The number of milliseconds the CPU has spent in user mode. */
user: number;
/** The number of milliseconds the CPU has spent in nice mode. */
nice: number;
/** The number of milliseconds the CPU has spent in sys mode. */
sys: number;
/** The number of milliseconds the CPU has spent in idle mode. */
idle: number;
/** The number of milliseconds the CPU has spent in irq mode. */
irq: number;
};
}
interface NetworkInterfaceBase {
address: string;
netmask: string;
mac: string;
internal: boolean;
cidr: string | null;
}
interface NetworkInterfaceInfoIPv4 extends NetworkInterfaceBase {
family: "IPv4";
scopeid?: undefined;
}
interface NetworkInterfaceInfoIPv6 extends NetworkInterfaceBase {
family: "IPv6";
scopeid: number;
}
interface UserInfo<T> {
username: T;
uid: number;
gid: number;
shell: T | null;
homedir: T;
}
type NetworkInterfaceInfo =
| NetworkInterfaceInfoIPv4
| NetworkInterfaceInfoIPv6;
/**
* Returns an estimate of the default amount of parallelism a program should use.
* Always returns a value greater than zero.
*/
function availableParallelism(): number;
/**
* Returns the operating system CPU architecture for which the LLRT binary was compiled.
* Possible values are 'arm64', 'x64'. The return value is equivalent to `process.arch`.
*/
function arch(): string;
/**
* Returns an array of objects containing information about each logical CPU core.
* The array will be empty if no CPU information is available, such as if the `/proc` file system is unavailable.
*
* The properties included on each object include:
*
* ```js
* [
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 252020,
* nice: 0,
* sys: 30340,
* idle: 1070356870,
* irq: 0,
* },
* },
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 306960,
* nice: 0,
* sys: 26980,
* idle: 1071569080,
* irq: 0,
* },
* },
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 248450,
* nice: 0,
* sys: 21750,
* idle: 1070919370,
* irq: 0,
* },
* },
* {
* model: 'Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz',
* speed: 2926,
* times: {
* user: 256880,
* nice: 0,
* sys: 19430,
* idle: 1070905480,
* irq: 20,
* },
* },
* ]
* ```
*
* `nice` values are POSIX-only. On Windows, the `nice` values of all processors
* are always 0.
*
* `os.cpus().length` should not be used to calculate the amount of parallelism
* available to an application. Use {@link availableParallelism} for this purpose.
*/
function cpus(): CpuInfo[];
const devNull: string;
/**
* Returns a string identifying the endianness of the CPU for which the Node.js
* binary was compiled.
*
* Possible values are `'BE'` for big endian and `'LE'` for little endian.
*/
function endianness(): "BE" | "LE";
/**
* The operating system-specific end-of-line marker.
* * `\n` on POSIX
* * `\r\n` on Windows
*/
const EOL: string;
/**
* Returns the amount of free system memory in bytes as an integer.
*/
function freemem(): number;
/**
* Returns the scheduling priority for the process specified by `pid`. If `pid` is
* not provided or is `0`, the priority of the current process is returned.
* @param [pid=0] The process ID to retrieve scheduling priority for.
*/
function getPriority(pid?: number): number;
/**
* Returns the string path of the current user's home directory.
*
* On POSIX, it uses the `$HOME` environment variable if defined. Otherwise it
* uses the [effective UID](https://en.wikipedia.org/wiki/User_identifier#Effective_user_ID) to look up the user's home directory.
*
* On Windows, it uses the `USERPROFILE` environment variable if defined.
* Otherwise it uses the path to the profile directory of the current user.
*/
function homedir(): string;
/**
* Returns the host name of the operating system as a string.
*/
function hostname(): string;
/**
* Returns an array containing the 1, 5, and 15 minute load averages.
*
* The load average is a measure of system activity calculated by the operating
* system and expressed as a fractional number.
*
* The load average is a Unix-specific concept. On Windows, the return value is
* always `[0, 0, 0]`.
*/
function loadavg(): number[];
/**
* Returns the machine type as a string, such as `arm64`, `aarch64`, `x86_64`.
*
* On POSIX systems, the machine type is determined by calling [`uname(3)`](https://linux.die.net/man/3/uname). On Windows, `RtlGetVersion()` is used, and if it is not
* available, `GetVersionExW()` will be used. See [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for more information.
*/
function machine(): string;
/**
* Returns an object containing network interfaces that have been assigned a
* network address.
*
* Each key on the returned object identifies a network interface. The associated
* value is an array of objects that each describe an assigned network address.
*
* The properties available on the assigned network address object include:
*
* ```js
* {
* lo: [
* {
* address: '127.0.0.1',
* netmask: '255.0.0.0',
* family: 'IPv4',
* mac: '00:00:00:00:00:00',
* internal: true,
* cidr: '127.0.0.1/8'
* },
* {
* address: '::1',
* netmask: 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff',
* family: 'IPv6',
* mac: '00:00:00:00:00:00',
* scopeid: 0,
* internal: true,
* cidr: '::1/128'
* }
* ],
* eth0: [
* {
* address: '192.168.1.108',
* netmask: '255.255.255.0',
* family: 'IPv4',
* mac: '01:02:03:0a:0b:0c',
* internal: false,
* cidr: '192.168.1.108/24'
* },
* {
* address: 'fe80::a00:27ff:fe4e:66a1',
* netmask: 'ffff:ffff:ffff:ffff::',
* family: 'IPv6',
* mac: '01:02:03:0a:0b:0c',
* scopeid: 1,
* internal: false,
* cidr: 'fe80::a00:27ff:fe4e:66a1/64'
* }
* ]
* }
* ```
*/
function networkInterfaces(): NodeJS.Dict<NetworkInterfaceInfo[]>;
/**
* Returns a string identifying the operating system platform for which
* the Node.js binary was compiled. The value is set at compile time.
*/
function platform(): Platform;
function release(): string;
/**
* Returns the operating system's default directory for temporary files as a
* string.
*/
/**
* Attempts to set the scheduling priority for the process specified by `pid`. If `pid` is not provided or is `0`, the process ID of the current process is used.
*
* The `priority` input must be an integer between `-20` (high priority) and `19` (low priority). Due to differences between Unix priority levels and Windows
* priority classes, `priority` is mapped to one of six priority constants in `os.constants.priority`. When retrieving a process priority level, this range
* mapping may cause the return value to be slightly different on Windows. To avoid
* confusion, set `priority` to one of the priority constants.
*
* On Windows, not currently supported on Windows.
*
* @param [pid=0] The process ID to set scheduling priority for.
* @param priority The scheduling priority to assign to the process.
*/
function setPriority(priority: number): void;
function setPriority(pid: number, priority: number): void;
/**
* Returns the operating system release as a string.
*
* On POSIX systems, the operating system release is determined by calling [`uname(3)`](https://linux.die.net/man/3/uname). On Windows, `RtlGetVersion()` is used. See
* [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for more information.
*/
function tmpdir(): string;
/**
* Returns the total amount of system memory in bytes as an integer.
*/
function totalmem(): number;
/**
* Returns the operating system name as returned by [`uname(3)`](https://linux.die.net/man/3/uname). For example, it
* returns `'Linux'` on Linux, `'Darwin'` on macOS, and `'Windows_NT'` on Windows.
*
* See [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for additional information
* about the output of running [`uname(3)`](https://linux.die.net/man/3/uname) on various operating systems.
*/
function type(): string;
/**
* Returns the system uptime in number of seconds.
*/
function uptime(): number;
/**
* Returns a string identifying the kernel version.
*
* On POSIX systems, the operating system release is determined by calling [`uname(3)`](https://linux.die.net/man/3/uname). On Windows, `RtlGetVersion()` is used.
* See [https://en.wikipedia.org/wiki/Uname#Examples](https://en.wikipedia.org/wiki/Uname#Examples) for more information.
*/
/**
* Returns information about the currently effective user. On POSIX platforms,
* this is typically a subset of the password file. The returned object includes
* the `username`, `uid`, `gid`, `shell`, and `homedir`. On Windows, the `uid` and `gid` fields are `-1`, and `shell` is `null`.
*
* The value of `homedir` returned by `os.userInfo()` is provided by the operating
* system. This differs from the result of `os.homedir()`, which queries
* environment variables for the home directory before falling back to the
* operating system response.
*
* Throws a [`SystemError`](https://nodejs.org/docs/latest-v22.x/api/errors.html#class-systemerror) if a user has no `username` or `homedir`.
*/
//function userInfo(options: { encoding: "buffer" }): UserInfo<Buffer>;
function userInfo(options?: { encoding: BufferEncoding }): UserInfo<string>;
function version(): string;
}