Struct HostResourceLimits 

pub struct HostResourceLimits {
    pub max_processes: u64,
    pub max_open_files: u64,
    pub max_file_size_bytes: u64,
    pub cpu_seconds: u64,
    pub memory_bytes: u64,
    pub cgroup_memory_bytes: u64,
    pub cgroup_pids_max: u64,
    pub cgroup_cpu_percent: u32,
    pub cgroup_io_bytes_per_sec: u64,
    pub workdir_max_bytes: u64,
}

Fully-resolved host-process limits for one session: the manifest’s capabilities.resources block with every omitted field replaced by its DEFAULT_*.

Fields

max_processes: u64

RLIMIT_NPROC headroom above the runtime’s own uid baseline. Per-uid, not per-process-tree, and counted in the unit that uid’s kernel enforces against ([uid_task_count]). See the module docs for why the cgroup pids.max below exists alongside it rather than duplicating it, and [apply_hard_rlimits] for why it is applied as headroom.

max_open_files: u64

RLIMIT_NOFILE hard ceiling.

max_file_size_bytes: u64

RLIMIT_FSIZE hard ceiling, in bytes.

cpu_seconds: u64

RLIMIT_CPU hard ceiling, in CPU-seconds.

memory_bytes: u64

RLIMIT_AS on Linux, RLIMIT_DATA on macOS (which has no RLIMIT_AS), in bytes.

cgroup_memory_bytes: u64

cgroup v2 memory.max, in bytes. Linux only.

cgroup_pids_max: u64

cgroup v2 pids.max. Linux only.

cgroup_cpu_percent: u32

cgroup v2 cpu.max quota as a percentage of one core. Linux only.

cgroup_io_bytes_per_sec: u64

cgroup v2 io.max rbps+wbps on the workdir’s backing device. Linux only, best-effort.

workdir_max_bytes: u64

Ceiling on total workdir size, in bytes. Every platform.

Implementations

impl HostResourceLimits

pub fn resolve(declared: Option<&ResourceCapabilities>) -> Self

Resolve a manifest capabilities.resources block, substituting the default for each field the manifest left out (and for the whole block when it is absent).

Trait Implementations

impl Clone for HostResourceLimits

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HostResourceLimits

impl Debug for HostResourceLimits

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

Formats the value using the given formatter.

impl Default for HostResourceLimits

fn default() -> Self

Returns the “default value” for a type.

impl Eq for HostResourceLimits

impl PartialEq for HostResourceLimits

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HostResourceLimits