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feat(python): streaming-stdio popen — Sandbox.popen + Process (RFC #67) #123

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Merged
congwang-mk merged 3 commits into from
Jul 5, 2026
+805 −27
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feat(python): streaming-stdio popen — Sandbox.popen + Process (RFC #67) #123

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1afb6e6
feat(python): streaming-stdio popen — Sandbox.popen + Process (RFC #67)
dzerik Jul 1, 2026
3ac2df6
Address review: Process owns its handle; fix wait timeout, kill, sb-m…
dzerik Jul 4, 2026
e26e9d0
Address review round 2: checkpoint reject, thread-safe pid/ports, dro…
dzerik Jul 4, 2026
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6 changes: 5 additions & 1 deletion python/src/sandlock/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,9 @@
)
from .inputs import inputs
from .handler import Handler, NotifAction, HandlerCtx, ExceptionPolicy
from .sandbox import Sandbox, BranchAction, parse_ports, Change, DryRunResult
from .sandbox import (
Sandbox, BranchAction, parse_ports, Change, DryRunResult, StdioMode, Process,
)
from ._profile import load_profile, list_profiles
from .exceptions import (
SandlockError,
Expand Down Expand Up @@ -49,6 +51,8 @@
"parse_ports",
"Change",
"DryRunResult",
"StdioMode",
"Process",
"Protection",
# Handler ABI
"Handler",
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16 changes: 16 additions & 0 deletions python/src/sandlock/_sdk.py
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Original file line number Diff line number Diff line change
Expand Up @@ -317,6 +317,22 @@ def confine(policy: "PolicyDataclass") -> None:
_lib.sandlock_handle_port_mappings.restype = ctypes.c_char_p
_lib.sandlock_handle_port_mappings.argtypes = [_c_handle_p]

# Streaming-stdio popen (RFC #67): create+start a live handle with per-stream
# StdioMode; each piped stream's owned fd is returned through its out pointer.
_lib.sandlock_popen.restype = _c_handle_p
_lib.sandlock_popen.argtypes = [
_c_policy_p,
ctypes.c_char_p,
ctypes.POINTER(ctypes.c_char_p),
ctypes.c_uint,
ctypes.c_uint32, # stdin_mode
ctypes.c_uint32, # stdout_mode
ctypes.c_uint32, # stderr_mode
ctypes.POINTER(ctypes.c_int), # out_stdin_fd
ctypes.POINTER(ctypes.c_int), # out_stdout_fd
ctypes.POINTER(ctypes.c_int), # out_stderr_fd
]

# Result
_lib.sandlock_result_exit_code.restype = ctypes.c_int
_lib.sandlock_result_exit_code.argtypes = [_c_result_p]
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