# `CliSubprocessCore.RawSession`
[🔗](https://github.com/nshkrdotcom/cli_subprocess_core/blob/v0.1.0/lib/cli_subprocess_core/raw_session.ex#L1)

Provider-agnostic handle for long-lived raw subprocess sessions.

`ExternalRuntimeTransport.Transport` owns the subprocess lifecycle itself. This
module provides a higher-level contract for consumers that need a stable raw
session handle, exact-byte stdin/stdout defaults, optional PTY startup, and
normalized result collection without re-implementing lifecycle rules in
provider repos.

# `info_t`

```elixir
@type info_t() :: %{
  delivery: CliSubprocessCore.RawSession.Delivery.t(),
  invocation: CliSubprocessCore.Command.t(),
  receiver: pid(),
  transport_ref: reference(),
  event_tag: atom(),
  stdout_mode: :line | :raw,
  stdin_mode: :line | :raw,
  interrupt_mode: :signal | {:stdin, binary()},
  pty?: boolean(),
  stdin?: boolean(),
  transport: term()
}
```

# `t`

```elixir
@type t() :: %CliSubprocessCore.RawSession{
  event_tag: atom(),
  interrupt_mode: :signal | {:stdin, binary()},
  invocation: CliSubprocessCore.Command.t(),
  pty?: boolean(),
  receiver: pid(),
  stdin?: boolean(),
  stdin_mode: :line | :raw,
  stdout_mode: :line | :raw,
  transport: pid(),
  transport_api: module(),
  transport_ref: reference()
}
```

# `close_input`

```elixir
@spec close_input(t()) :: :ok | {:error, term()}
```

Closes stdin for EOF-driven subprocesses.

Pipe-backed sessions send `:eof`; PTY-backed sessions send the terminal EOF
byte (`Ctrl-D`).

# `collect`

```elixir
@spec collect(t(), timeout()) ::
  {:ok, ExternalRuntimeTransport.Transport.RunResult.t()} | {:error, term()}
```

Collects session output until the subprocess exits.

The configured receiver must be the calling process so the core can consume
its own transport events deterministically.

# `delivery_info`

```elixir
@spec delivery_info(t()) :: CliSubprocessCore.RawSession.Delivery.t()
```

Returns stable mailbox-delivery metadata for the raw session.

# `force_close`

```elixir
@spec force_close(t()) :: :ok | {:error, term()}
```

Forces the subprocess down immediately.

# `info`

```elixir
@spec info(t()) :: info_t()
```

Returns the latest raw session metadata snapshot.

# `interrupt`

```elixir
@spec interrupt(t()) :: :ok | {:error, term()}
```

Interrupts the subprocess according to the configured transport contract.

# `send_input`

```elixir
@spec send_input(t(), iodata()) :: :ok | {:error, term()}
```

Sends exact input bytes through the session transport.

# `start`

```elixir
@spec start(CliSubprocessCore.Command.t()) :: {:ok, t()} | {:error, term()}
```

Starts an unlinked raw subprocess session from a prebuilt invocation.

# `start`

```elixir
@spec start(String.t(), [String.t()]) :: {:ok, t()} | {:error, term()}
@spec start(
  CliSubprocessCore.Command.t(),
  keyword()
) :: {:ok, t()} | {:error, term()}
```

Starts an unlinked raw subprocess session from either an executable and argv
list or a prebuilt invocation plus options.

# `start`

```elixir
@spec start(String.t(), [String.t()], keyword()) :: {:ok, t()} | {:error, term()}
```

# `start_link`

```elixir
@spec start_link(CliSubprocessCore.Command.t()) :: {:ok, t()} | {:error, term()}
```

Starts a linked raw subprocess session from a prebuilt invocation.

# `start_link`

```elixir
@spec start_link(String.t(), [String.t()]) :: {:ok, t()} | {:error, term()}
@spec start_link(
  CliSubprocessCore.Command.t(),
  keyword()
) :: {:ok, t()} | {:error, term()}
```

Starts a linked raw subprocess session from either an executable and argv
list or a prebuilt invocation plus options.

# `start_link`

```elixir
@spec start_link(String.t(), [String.t()], keyword()) :: {:ok, t()} | {:error, term()}
```

# `status`

```elixir
@spec status(t()) :: :connected | :disconnected | :error
```

Returns the transport status for the raw session.

# `stderr`

```elixir
@spec stderr(t()) :: binary()
```

Returns the stderr tail retained by the underlying transport.

# `stop`

```elixir
@spec stop(t()) :: :ok
```

Stops the subprocess transport.

---

*Consult [api-reference.md](api-reference.md) for complete listing*