95 lines
2.5 KiB
Go
95 lines
2.5 KiB
Go
//go:build !linux
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// +build !linux
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/*
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Copyright 2024 The GoStor Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package numa
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import (
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"fmt"
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"runtime"
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)
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func detectLinuxTopology(topology *Topology) error {
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return fmt.Errorf("NUMA not supported on this platform")
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}
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func getCurrentNodeImpl() (NodeID, error) {
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return 0, fmt.Errorf("NUMA not supported on this platform")
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}
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func setPreferredNodeImpl(node NodeID) (*PreferredNode, error) {
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return nil, fmt.Errorf("NUMA not supported on this platform")
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}
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func revertPreferredNodeImpl(p *PreferredNode) error {
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return fmt.Errorf("NUMA not supported on this platform")
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}
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func setMemoryPolicyImpl(policy MemoryPolicy, nodes []NodeID) error {
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return fmt.Errorf("NUMA not supported on this platform")
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}
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func allocateOnNodeImpl(size int, node NodeID) ([]byte, error) {
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return make([]byte, size), nil
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}
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func scheduleOnNodeImpl(cpu int, fn func()) error {
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fn()
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return nil
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}
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func getPreferredNodeForCurrentThreadImpl() NodeID {
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return 0
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}
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// PinThreadToNode pins the current goroutine's OS thread to a specific NUMA node
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// Stub implementation - does nothing on non-Linux platforms
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func PinThreadToNode(node NodeID) error {
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return nil
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}
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// UnpinThread releases the current goroutine's OS thread from NUMA binding
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// Stub implementation - does nothing on non-Linux platforms
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func UnpinThread() {}
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// RunOnNode runs a function with the current goroutine pinned to a specific NUMA node
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// Stub implementation - just runs the function on non-Linux platforms
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func RunOnNode(node NodeID, fn func()) error {
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fn()
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return nil
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}
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// createSingleNodeTopology creates a single-node topology for non-NUMA systems
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func createSingleNodeTopology(topology *Topology) {
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numCPU := runtime.NumCPU()
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cpus := make([]int, numCPU)
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for i := 0; i < numCPU; i++ {
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cpus[i] = i
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topology.CPUToNodeMap[i] = 0
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}
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topology.NumNodes = 1
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topology.Nodes[0] = &NodeInfo{
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ID: 0,
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CPUs: cpus,
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TotalMemory: 0,
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FreeMemory: 0,
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DistanceToNode: []uint32{10},
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}
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}
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