pptx704
6f0c365d44
Implement the host agent as a Connect RPC server that orchestrates sandbox creation, destruction, pause/resume, and command execution. Includes sandbox manager with TTL-based reaper, network slot allocator, rootfs cloning, hostagent proto definition with generated stubs, and test/debug scripts. Fix Firecracker process lifetime bug where VM was tied to HTTP request context instead of background context.
42 lines
831 B
Go
42 lines
831 B
Go
package network
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import (
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"fmt"
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"sync"
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)
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// SlotAllocator manages network slot indices for sandboxes.
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// Each sandbox needs a unique slot index for its network addressing.
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type SlotAllocator struct {
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mu sync.Mutex
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inUse map[int]bool
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}
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// NewSlotAllocator creates a new slot allocator.
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func NewSlotAllocator() *SlotAllocator {
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return &SlotAllocator{
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inUse: make(map[int]bool),
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}
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}
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// Allocate returns the next available slot index (1-based).
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func (a *SlotAllocator) Allocate() (int, error) {
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a.mu.Lock()
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defer a.mu.Unlock()
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for i := 1; i <= 65534; i++ {
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if !a.inUse[i] {
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a.inUse[i] = true
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return i, nil
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}
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}
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return 0, fmt.Errorf("no free network slots")
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}
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// Release frees a slot index for reuse.
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func (a *SlotAllocator) Release(index int) {
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a.mu.Lock()
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defer a.mu.Unlock()
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delete(a.inUse, index)
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}
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