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//! Data collection for memory via heim.
#[derive(Debug, Clone, Default)]
pub struct MemHarvest {
pub mem_total_in_kib: u64,
pub mem_used_in_kib: u64,
pub use_percent: Option<f64>,
}
pub async fn get_mem_data(
actually_get: bool,
) -> (
crate::utils::error::Result<Option<MemHarvest>>,
crate::utils::error::Result<Option<MemHarvest>>,
) {
use futures::join;
if !actually_get {
(Ok(None), Ok(None))
} else {
join!(get_ram_data(), get_swap_data())
}
}
pub async fn get_ram_data() -> crate::utils::error::Result<Option<MemHarvest>> {
let memory = heim::memory::memory().await?;
let (mem_total_in_kib, mem_used_in_kib) = {
#[cfg(target_os = "linux")]
{
use heim::memory::os::linux::MemoryExt;
use heim::units::information::kilobyte;
// For Linux, the "kilobyte" value in the .total call is actually kibibytes - see
// https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/s2-proc-meminfo
//
// Heim parses this as kilobytes (https://github.com/heim-rs/heim/blob/master/heim-memory/src/sys/linux/memory.rs#L82)
// even though it probably shouldn't...
(
memory.total().get::<kilobyte>(),
memory.used().get::<kilobyte>(),
)
}
#[cfg(target_os = "macos")]
{
use heim::memory::os::macos::MemoryExt;
use heim::units::information::kibibyte;
(
memory.total().get::<kibibyte>(),
memory.active().get::<kibibyte>() + memory.wire().get::<kibibyte>(),
)
}
#[cfg(target_os = "windows")]
{
use heim::units::information::kibibyte;
let mem_total_in_kib = memory.total().get::<kibibyte>();
(
mem_total_in_kib,
mem_total_in_kib - memory.available().get::<kibibyte>(),
)
}
};
Ok(Some(MemHarvest {
mem_total_in_kib,
mem_used_in_kib,
use_percent: if mem_total_in_kib == 0 {
None
} else {
Some(mem_used_in_kib as f64 / mem_total_in_kib as f64 * 100.0)
},
}))
}
pub async fn get_swap_data() -> crate::utils::error::Result<Option<MemHarvest>> {
let memory = heim::memory::swap().await?;
let (mem_total_in_kib, mem_used_in_kib) = {
#[cfg(target_os = "linux")]
{
// Similar story to above - heim parses this information incorrectly as far as I can tell, so kilobytes = kibibytes here.
use heim::units::information::kilobyte;
(
memory.total().get::<kilobyte>(),
memory.used().get::<kilobyte>(),
)
}
#[cfg(any(target_os = "windows", target_os = "macos"))]
{
use heim::units::information::kibibyte;
(
memory.total().get::<kibibyte>(),
memory.used().get::<kibibyte>(),
)
}
};
Ok(Some(MemHarvest {
mem_total_in_kib,
mem_used_in_kib,
use_percent: if mem_total_in_kib == 0 {
None
} else {
Some(mem_used_in_kib as f64 / mem_total_in_kib as f64 * 100.0)
},
}))
}
|
