pptx704
a3898d68fb
- Copy envd source from e2b-dev/infra, internalize shared dependencies
into envd/internal/shared/ (keys, filesystem, id, smap, utils)
- Switch from gRPC to Connect RPC for all envd services
- Update module paths to git.omukk.dev/wrenn/{sandbox,sandbox/envd}
- Add proto specs (process, filesystem) with buf-based code generation
- Implement full envd: process exec, filesystem ops, port forwarding,
cgroup management, MMDS integration, and HTTP API
- Update main module dependencies (firecracker SDK, pgx, goose, etc.)
- Remove placeholder .gitkeep files replaced by real implementations
74 lines
1.1 KiB
Go
74 lines
1.1 KiB
Go
package handler
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import (
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"sync"
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"sync/atomic"
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)
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type MultiplexedChannel[T any] struct {
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Source chan T
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channels []chan T
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mu sync.RWMutex
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exited atomic.Bool
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}
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func NewMultiplexedChannel[T any](buffer int) *MultiplexedChannel[T] {
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c := &MultiplexedChannel[T]{
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channels: nil,
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Source: make(chan T, buffer),
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}
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go func() {
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for v := range c.Source {
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c.mu.RLock()
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for _, cons := range c.channels {
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cons <- v
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}
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c.mu.RUnlock()
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}
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c.exited.Store(true)
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for _, cons := range c.channels {
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close(cons)
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}
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}()
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return c
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}
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func (m *MultiplexedChannel[T]) Fork() (chan T, func()) {
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if m.exited.Load() {
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ch := make(chan T)
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close(ch)
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return ch, func() {}
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}
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m.mu.Lock()
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defer m.mu.Unlock()
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consumer := make(chan T)
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m.channels = append(m.channels, consumer)
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return consumer, func() {
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m.remove(consumer)
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}
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}
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func (m *MultiplexedChannel[T]) remove(consumer chan T) {
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m.mu.Lock()
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defer m.mu.Unlock()
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for i, ch := range m.channels {
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if ch == consumer {
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m.channels = append(m.channels[:i], m.channels[i+1:]...)
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return
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}
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}
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}
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