From 716b18f69d5116a2ff9465e2ba439fe748358172 Mon Sep 17 00:00:00 2001
From: Virgil <virgil@lthn.ai>
Date: Thu, 19 Feb 2026 16:52:46 +0000
Subject: [PATCH] Delete page "Process-Streaming.-"

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 Process-Streaming.-.md | 136 -----------------------------------------
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 delete mode 100644 Process-Streaming.-.md

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-# Process Streaming
-
-The `go-ws` package provides two convenience methods for streaming process output and status updates over WebSocket channels. These are the primary integration point between a process manager and connected web frontends.
-
-## SendProcessOutput
-
-Streams a single line of process output to all clients subscribed to the `process:{id}` channel.
-
-```go
-func (h *Hub) SendProcessOutput(processID string, output string) error
-```
-
-**Parameters:**
-- `processID` -- unique identifier for the process (e.g. `"web-server-1"`)
-- `output` -- a single line of stdout/stderr output
-
-**Wire format:**
-
-```json
-{
-    "type": "process_output",
-    "channel": "process:web-server-1",
-    "processId": "web-server-1",
-    "data": "2026-02-19 10:00:00 Listening on :8080",
-    "timestamp": "2026-02-19T10:00:00.123Z"
-}
-```
-
-**Example -- forwarding output from an exec.Cmd:**
-
-```go
-scanner := bufio.NewScanner(cmd.Stdout)
-for scanner.Scan() {
-    hub.SendProcessOutput("web-server-1", scanner.Text())
-}
-```
-
-## SendProcessStatus
-
-Sends a process lifecycle status change to all clients subscribed to the `process:{id}` channel.
-
-```go
-func (h *Hub) SendProcessStatus(processID string, status string, exitCode int) error
-```
-
-**Parameters:**
-- `processID` -- unique identifier for the process
-- `status` -- status string (e.g. `"running"`, `"exited"`, `"crashed"`, `"stopped"`)
-- `exitCode` -- the process exit code (0 for success, non-zero for failure; use 0 for non-exit statuses like `"running"`)
-
-**Wire format:**
-
-```json
-{
-    "type": "process_status",
-    "channel": "process:proc-1",
-    "processId": "proc-1",
-    "data": {
-        "status": "exited",
-        "exitCode": 0
-    },
-    "timestamp": "2026-02-19T10:05:00.456Z"
-}
-```
-
-## Integration with Core Framework
-
-The hub integrates with the Core framework's action/message-passing system. Process managers dispatch actions, and a registered action handler forwards them to the WebSocket hub:
-
-```go
-core.RegisterAction(func(c *framework.Core, msg framework.Message) error {
-    switch m := msg.(type) {
-    case process.ActionProcessOutput:
-        hub.SendProcessOutput(m.ID, m.Line)
-    case process.ActionProcessExited:
-        hub.SendProcessStatus(m.ID, "exited", m.ExitCode)
-    case process.ActionProcessStarted:
-        hub.SendProcessStatus(m.ID, "running", 0)
-    }
-    return nil
-})
-```
-
-This decouples process management from WebSocket delivery. The process manager only needs to emit actions; the WebSocket layer handles fan-out to subscribed clients.
-
-## Client-Side Consumption
-
-A JavaScript client subscribes to a process channel and handles the two message types:
-
-```javascript
-const socket = new WebSocket("ws://localhost:8080/ws");
-
-const processId = "web-server-1";
-
-socket.onopen = () => {
-    socket.send(JSON.stringify({
-        type: "subscribe",
-        data: "process:" + processId
-    }));
-};
-
-socket.onmessage = (event) => {
-    const msg = JSON.parse(event.data);
-
-    switch (msg.type) {
-        case "process_output":
-            terminal.appendLine(msg.data);
-            break;
-        case "process_status":
-            statusBadge.textContent = msg.data.status;
-            if (msg.data.exitCode !== 0) {
-                statusBadge.classList.add("error");
-            }
-            break;
-    }
-};
-```
-
-## Channel Routing
-
-Both methods route through `SendToChannel` with the channel name `"process:" + processID`. See [[Channel-Subscriptions]] for details on how channel delivery works.
-
-If no clients are subscribed to the process channel, the message is silently discarded (no error returned). This means it is safe to call `SendProcessOutput` at high frequency even when no frontends are connected.
-
-## Backpressure
-
-If a client's send buffer (capacity 256) is full, that client is skipped for the current message. The message is not queued or retried. For high-throughput process output, this means slow consumers may miss lines.
-
-The `SendToChannel` path does **not** schedule the client for unregistration when the buffer is full (unlike the `Broadcast` path). The client remains connected and will receive the next message if buffer space is available.
-
-## Related Pages
-
-- [[Home]] -- Overview and quick start
-- [[Architecture]] -- Hub internals and goroutine model
-- [[Message-Types]] -- Wire format and message type constants
-- [[Channel-Subscriptions]] -- Channel pub/sub mechanics