118 lines
2.2 KiB
Go
118 lines
2.2 KiB
Go
package prism
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import (
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"container/list"
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"context"
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"log/slog"
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"sync"
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"sync/atomic"
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"time"
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)
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// ----------------------------------------------------------------------------
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// Types
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// ----------------------------------------------------------------------------
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// Letters
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type LetterID = uint64
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type OutboundLetter struct {
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}
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type letterRecord struct {
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}
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type LetterOutcomeKind int
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type LetterOutcome struct {
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}
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// Postmaster
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type Postmaster struct {
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couriers map[string]*Courier
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letters map[LetterID]letterRecord
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events <-chan PoolEvent // Adapter.Subscribe
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send PoolSendFunc // Adapter.Send
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counter atomic.Uint64
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ctx context.Context
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cancel context.CancelFunc
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mu sync.Mutex
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wg sync.WaitGroup
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cfg postmasterConfig
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logger *slog.Logger
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}
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// Courier
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type Courier struct {
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id string // peer id
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master *Postmaster
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cmd chan courierCommand
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send func(data Envelope) error
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// state
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queue list.List
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connected bool
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sending bool
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ctx context.Context
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cancel context.CancelFunc
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wg sync.WaitGroup
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logger *slog.Logger
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}
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// Commands
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type courierCommand interface {
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apply(c *Courier)
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}
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// Options
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type PostmasterOption func(*postmasterConfig)
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type postmasterConfig struct{}
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// ----------------------------------------------------------------------------
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// Postmaster
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// ----------------------------------------------------------------------------
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func NewPostmaster(
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pool *Adapter,
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send PoolSendFunc,
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opts ...PostmasterOption,
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) *Postmaster {
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return nil
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}
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func (m *Postmaster) Send(
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ctx context.Context,
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peerID string,
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data Envelope,
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deadline time.Duration,
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onOutcome func(LetterOutcome), // should be non-blocking
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) (LetterID, error) {
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return 0, nil
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}
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func (m *Postmaster) Close() {}
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// ----------------------------------------------------------------------------
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// Courier
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// ----------------------------------------------------------------------------
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func NewCourier() *Courier {
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return nil
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}
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func (c *Courier) Enqueue(letter OutboundLetter) {}
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func (c *Courier) Close() {}
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// ----------------------------------------------------------------------------
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// Commands
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// ----------------------------------------------------------------------------
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