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use serde::{Deserialize, Serialize};
/// Describes the balloon device statistics.
///
/// This structure represents the return value requested
/// by `GET /balloon/statistics`, which describes detailed
/// information of the balloon device.
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct BalloonStats {
/// Target number of pages the device aims to hold.
/// Required: true
#[serde(rename = "target_pages")]
pub target_pages: u64,
/// Actual number of pages the device is holding.
/// Required: true
#[serde(rename = "actual_pages")]
pub actual_pages: u64,
/// Target amount of memory (in MiB) the device aims to hold.
/// Required: true
#[serde(rename = "target_mib")]
pub target_mib: u64,
/// Actual amount of memory (in MiB) the device is holding.
/// Required: true
#[serde(rename = "actual_mib")]
pub actual_mib: u64,
/// The amount of memory that has been swapped in (in bytes).
#[serde(rename = "swap_in", skip_serializing_if = "Option::is_none")]
pub swap_in: Option<u64>,
/// The amount of memory that has been swapped out to disk (in bytes).
#[serde(rename = "swap_out", skip_serializing_if = "Option::is_none")]
pub swap_out: Option<u64>,
/// The number of major page faults that have occurred.
#[serde(rename = "major_faults", skip_serializing_if = "Option::is_none")]
pub major_faults: Option<u64>,
/// The number of minor page faults that have occurred.
#[serde(rename = "minor_faults", skip_serializing_if = "Option::is_none")]
pub minor_faults: Option<u64>,
/// The amount of memory not being used for any purpose (in bytes).
#[serde(rename = "free_memory", skip_serializing_if = "Option::is_none")]
pub free_memory: Option<u64>,
/// The total amount of memory available (in bytes).
#[serde(rename = "total_memory", skip_serializing_if = "Option::is_none")]
pub total_memory: Option<u64>,
/// An estimate of how much memory is available (in bytes) for starting new applications
/// without pushing the system to swap;
#[serde(rename = "available_memory", skip_serializing_if = "Option::is_none")]
pub available_memory: Option<u64>,
/// The amount of memory, in bytes, that can be quickly reclaimed without additional I/O.
/// Typically these pages are used for caching files from disk.
#[serde(rename = "disk_caches", skip_serializing_if = "Option::is_none")]
pub disk_caches: Option<u64>,
/// The number of successful hugetlb page allocations in the guest.
#[serde(
rename = "hugetlb_allocations",
skip_serializing_if = "Option::is_none"
)]
pub hugetlb_allocations: Option<u64>,
/// The number of failed hugetlb page allocations in the guest.
#[serde(rename = "hugetlb_failures", skip_serializing_if = "Option::is_none")]
pub hugetlb_failures: Option<u64>,
}