add syscall wrapper for prctl(PR_SET_PDEATHSIG, ...)

1 files changed, 8 insertions, 0 deletions

diff --git a/linuxnamespaces/syscalls.py b/linuxnamespaces/syscalls.py
index be49632..d7154fc 100644
--- a/linuxnamespaces/syscalls.py
+++ b/linuxnamespaces/syscalls.py
@@ -343,6 +343,7 @@ class OpenTreeFlags(enum.IntFlag):
 class PrctlOption(enum.IntEnum):
     """This value may be supplied to prctl(2) as option."""
 
+    PR_SET_PDEATHSIG = 1
     PR_CAP_AMBIENT = 47
 
 
@@ -657,6 +658,13 @@ def prctl_raise_ambient_capabilities(capabilities: int) -> None:
         )
 
 
+def prctl_set_pdeathsig(signum: int) -> None:
+    """Set the parent-death signal of the calling process."""
+    if signum < 0:
+        raise ValueError("invalid signal number")
+    prctl(PrctlOption.PR_SET_PDEATHSIG, signum)
+
+
 def setns(fd: int, nstype: CloneFlags = CloneFlags.NONE) -> None:
     """Python wrapper for setns(2)."""
     if fd < 0: