diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/fs.md | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -927,8 +927,12 @@ one line, three right-aligned fields and a newline: the pty's columns and rows, then busy (0 or 1). `pty/ctl` takes `winsize C R`, `sig INT|TERM|HUP|QUIT|KILL` and `exec`, which starts the pane's shell again in its directory: one that is gone is refused before anything runs, `exec: -<dir>: no such directory` (ENOENT), and a shell the host cannot start fails -the write with why, as any builtin's failure does. A directory removed +<dir>: no such directory` (ENOENT), and a shell the host cannot start (not +there, not executable, a script whose interpreter is not there) fails the +write with why -- `shell: shell not found`, ENOENT -- keeping the +terminal; a `Tty` whose shell cannot start fails the same way and leaves +no pane. The host knows before it answers: the child reports a failed exec +through a close-on-exec pipe. A directory removed under a running shell leaves the pane its name (never `... (deleted)`), so an `exec` works there once the directory is back. The size, and `pty/ctl`'s `winsize` read back, is what `winsize C R` last set (R of 1 is taken as 2: a one-row pty loses |