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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| use std::{os::raw::c_void, ptr::NonNull}; | ||
|
|
||
| use spdk_rs::libspdk::{ | ||
| spdk_nvme_poll_group, | ||
| spdk_nvme_poll_group_add, | ||
| spdk_nvme_poll_group_create, | ||
| spdk_nvme_poll_group_destroy, | ||
| spdk_nvme_poll_group_remove, | ||
| }; | ||
|
|
||
| use crate::core::CoreError; | ||
|
|
||
| use super::QPair; | ||
|
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||
| /// Wrapper for NVMe SPDK poll group structure. | ||
| pub(super) struct PollGroup(NonNull<spdk_nvme_poll_group>); | ||
|
|
||
| impl PollGroup { | ||
| /// Creates a poll group. | ||
| pub(super) fn create( | ||
| ctx: *mut c_void, | ||
| ctrlr_name: &str, | ||
| ) -> Result<Self, CoreError> { | ||
| let poll_group: *mut spdk_nvme_poll_group = | ||
| unsafe { spdk_nvme_poll_group_create(ctx, std::ptr::null_mut()) }; | ||
|
|
||
| if poll_group.is_null() { | ||
| Err(CoreError::GetIoChannel { | ||
| name: ctrlr_name.to_string(), | ||
| }) | ||
| } else { | ||
| Ok(Self(NonNull::new(poll_group).unwrap())) | ||
| } | ||
| } | ||
|
|
||
| /// Adds I/O qpair to poll group. | ||
| pub(super) fn add_qpair(&mut self, qpair: &QPair) -> i32 { | ||
| unsafe { spdk_nvme_poll_group_add(self.0.as_ptr(), qpair.as_ptr()) } | ||
| } | ||
|
|
||
| /// Removes I/O qpair to poll group. | ||
| pub(super) fn remove_qpair(&mut self, qpair: &QPair) -> i32 { | ||
| unsafe { spdk_nvme_poll_group_remove(self.0.as_ptr(), qpair.as_ptr()) } | ||
| } | ||
|
|
||
| /// Gets SPDK handle for poll group. | ||
| #[inline(always)] | ||
| pub(super) fn as_ptr(&self) -> *mut spdk_nvme_poll_group { | ||
| self.0.as_ptr() | ||
| } | ||
| } | ||
|
|
||
| impl Drop for PollGroup { | ||
| fn drop(&mut self) { | ||
| trace!("dropping poll group {:p}", self.0.as_ptr()); | ||
| let rc = unsafe { spdk_nvme_poll_group_destroy(self.0.as_ptr()) }; | ||
| if rc < 0 { | ||
| error!("Error on poll group destroy: {}", rc); | ||
| } | ||
| trace!("poll group {:p} successfully dropped", self.0.as_ptr()); | ||
| } | ||
| } |
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