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| author | Benjamin Peterson <benjamin@python.org> | 2019-11-06 03:21:29 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-11-06 03:21:29 (GMT) |
| commit | 6c4c45efaeb40f4f837570f57d90a0b3429c6ae9 (patch) | |
| tree | 4abd982b8454d295f7f0c16c2ab0ab94014ce584 /Modules/posixmodule.c | |
| parent | 56698d57691af2272f695f8c17c835ed99545cde (diff) | |
| download | cpython-6c4c45efaeb40f4f837570f57d90a0b3429c6ae9.zip cpython-6c4c45efaeb40f4f837570f57d90a0b3429c6ae9.tar.gz cpython-6c4c45efaeb40f4f837570f57d90a0b3429c6ae9.tar.bz2 | |
bpo-38692: Add os.pidfd_open. (GH-17063)
Diffstat (limited to 'Modules/posixmodule.c')
| -rw-r--r-- | Modules/posixmodule.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c index 6d837c6..46cf7b2 100644 --- a/Modules/posixmodule.c +++ b/Modules/posixmodule.c @@ -7861,6 +7861,30 @@ os_wait_impl(PyObject *module) } #endif /* HAVE_WAIT */ +#if defined(__linux__) && defined(__NR_pidfd_open) +/*[clinic input] +os.pidfd_open + pid: pid_t + flags: unsigned_int = 0 + +Return a file descriptor referring to the process *pid*. + +The descriptor can be used to perform process management without races and +signals. +[clinic start generated code]*/ + +static PyObject * +os_pidfd_open_impl(PyObject *module, pid_t pid, unsigned int flags) +/*[clinic end generated code: output=5c7252698947dc41 input=c3fd99ce947ccfef]*/ +{ + int fd = syscall(__NR_pidfd_open, pid, flags); + if (fd < 0) { + return posix_error(); + } + return PyLong_FromLong(fd); +} +#endif + #if defined(HAVE_READLINK) || defined(MS_WINDOWS) /*[clinic input] @@ -13671,6 +13695,7 @@ static PyMethodDef posix_methods[] = { OS_WAIT4_METHODDEF OS_WAITID_METHODDEF OS_WAITPID_METHODDEF + OS_PIDFD_OPEN_METHODDEF OS_GETSID_METHODDEF OS_SETSID_METHODDEF OS_SETPGID_METHODDEF |