SysInfo

os::uapi::sysinfo

Struct SysInfo

#[repr(C)]
pub struct SysInfo {Show 13 fields
    pub uptime: c_ulong,
    pub loads: [c_ulong; 3],
    pub totalram: c_ulong,
    pub freeram: c_ulong,
    pub sharedram: c_ulong,
    pub bufferram: c_ulong,
    pub totalswap: c_ulong,
    pub freeswap: c_ulong,
    pub procs: u16,
    pub totalhigh: c_ulong,
    pub freehigh: c_ulong,
    pub mem_unit: c_uint,
    pub _reserved: [u8; 256],
}

Expand description

系统信息结构体对应 Linux 的 struct sysinfo

Fields§

§uptime: c_ulong

系统启动后经过的时间，单位为秒

§loads: [c_ulong; 3]

1 分钟、5 分钟和 15 分钟的平均负载

§totalram: c_ulong

总内存大小，单位为字节

§freeram: c_ulong

可用内存大小，单位为字节

§sharedram: c_ulong

缓存大小，单位为字节

§bufferram: c_ulong

用作文件缓存的内存大小，单位为字节

§totalswap: c_ulong

总交换空间大小，单位为字节

§freeswap: c_ulong

可用交换空间大小，单位为字节

§procs: u16

当前进程数

§totalhigh: c_ulong

高端内存总大小，单位为字节

§freehigh: c_ulong

高端可用内存大小，单位为字节

§mem_unit: c_uint

内存单位大小，单位为字节

§_reserved: [u8; 256]

保留字段，供未来使用

Implementations§

impl SysInfo

pub fn new() -> Self

创建一个新的 SysInfo 实例，所有字段初始化为零

Trait Implementations§

impl Clone for SysInfo

fn clone(&self) -> SysInfo

Returns a duplicate of the value. Read more

1.0.0§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for SysInfo

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl Copy for SysInfo

Auto Trait Implementations§

impl Freeze for SysInfo

impl RefUnwindSafe for SysInfo

impl Send for SysInfo

impl Sync for SysInfo

impl Unpin for SysInfo

impl UnwindSafe for SysInfo

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.