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//! Data collection for memory via heim.
#[derive(Debug, Clone)]
pub struct MemHarvest {
pub mem_total_in_kib: u64,
pub mem_used_in_kib: u64,
}
impl Default for MemHarvest {
fn default() -> Self {
MemHarvest {
mem_total_in_kib: 0,
mem_used_in_kib: 0,
}
}
}
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")]
{
// 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...
use heim::memory::os::linux::MemoryExt;
(
memory.total().get::<heim::units::information::kilobyte>(),
memory.used().get::<heim::units::information::kibibyte>(),
)
}
#[cfg(target_os = "macos")]
{
use heim::memory::os::macos::MemoryExt;
(
memory.total().get::<heim::units::information::kibibyte>(),
memory.active().get::<heim::units::information::kibibyte>()
+ memory.wire().get::<heim::units::information::kibibyte>(),
)
}
#[cfg(target_os = "windows")]
{
let mem_total_in_kib = memory.total().get::<heim::units::information::kibibyte>();
(
mem_total_in_kib,
mem_total_in_kib
- memory
.available()
.get::<heim::units::information::kibibyte>(),
)
}
};
Ok(Some(MemHarvest {
mem_total_in_kib,
mem_used_in_kib,
}))
}
pub async fn get_swap_data() -> crate::utils::error::Result<Option<MemHarvest>> {
let memory = heim::memory::swap().await?;
Ok(Some(MemHarvest {
mem_total_in_kib: memory.total().get::<heim::units::information::kibibyte>(),
mem_used_in_kib: memory.used().get::<heim::units::information::kibibyte>(),
}))
}
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