Enum nix::sys::resource::Resource

#[repr(u32)]
#[non_exhaustive]
pub enum Resource {
    RLIMIT_AS,
    RLIMIT_CORE,
    RLIMIT_CPU,
    RLIMIT_DATA,
    RLIMIT_FSIZE,
    RLIMIT_NOFILE,
    RLIMIT_STACK,
    RLIMIT_LOCKS,
    RLIMIT_MEMLOCK,
    RLIMIT_MSGQUEUE,
    RLIMIT_NICE,
    RLIMIT_NPROC,
    RLIMIT_RSS,
    RLIMIT_RTPRIO,
    RLIMIT_RTTIME,
    RLIMIT_SIGPENDING,
}

Available on crate feature resource only.

Types of process resources.

The Resource enum is platform dependent. Check different platform manuals for more details. Some platform links have been provided for easier reference (non-exhaustive).

• Linux
• FreeBSD
• NetBSD

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

RLIMIT_AS

The maximum amount (in bytes) of virtual memory the process is allowed to map.

RLIMIT_CORE

The largest size (in bytes) core(5) file that may be created.

RLIMIT_CPU

The maximum amount of cpu time (in seconds) to be used by each process.

RLIMIT_DATA

The maximum size (in bytes) of the data segment for a process

RLIMIT_FSIZE

The largest size (in bytes) file that may be created.

RLIMIT_NOFILE

The maximum number of open files for this process.

RLIMIT_STACK

The maximum size (in bytes) of the stack segment for a process.

RLIMIT_LOCKS

A limit on the combined number of flock locks and fcntl leases that this process may establish.

RLIMIT_MEMLOCK

The maximum size (in bytes) which a process may lock into memory using the mlock(2) system call.

RLIMIT_MSGQUEUE

A limit on the number of bytes that can be allocated for POSIX message queues for the real user ID of the calling process.

RLIMIT_NICE

A ceiling to which the process’s nice value can be raised using setpriority or nice.

RLIMIT_NPROC

The maximum number of simultaneous processes for this user id.

RLIMIT_RSS

When there is memory pressure and swap is available, prioritize eviction of a process’ resident pages beyond this amount (in bytes).

RLIMIT_RTPRIO

A ceiling on the real-time priority that may be set for this process using sched_setscheduler and sched_set‐ param.

RLIMIT_RTTIME

A limit (in microseconds) on the amount of CPU time that a process scheduled under a real-time scheduling policy may con‐ sume without making a blocking system call.

RLIMIT_SIGPENDING

A limit on the number of signals that may be queued for the real user ID of the calling process.

Trait Implementations

impl Clone for Resource

fn clone(&self) -> Resource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Resource

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

Formats the value using the given formatter.

impl Hash for Resource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Resource

fn cmp(&self, other: &Resource) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Resource> for Resource

fn eq(&self, other: &Resource) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<Resource> for Resource

fn partial_cmp(&self, other: &Resource) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Resource

impl Eq for Resource

impl StructuralEq for Resource

impl StructuralPartialEq for Resource